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jbe/bsw@0
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1 #include <lua.h>
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jbe/bsw@0
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2 #include <lauxlib.h>
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jbe/bsw@0
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3 #include <libpq-fe.h>
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jbe/bsw@0
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4 #include <postgres.h>
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jbe/bsw@0
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5 #include <catalog/pg_type.h>
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jbe/bsw@0
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6 #include <stdint.h>
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jbe/bsw@0
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7
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jbe/bsw@0
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8 #define MONDELEFANT_REGKEY "e449ba8d9a53d353_mondelefant"
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jbe/bsw@0
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9
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jbe/bsw@0
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10 #define MONDELEFANT_MODULE_REGKEY (MONDELEFANT_REGKEY "_module")
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jbe/bsw@0
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11 #define MONDELEFANT_CONN_MT_REGKEY (MONDELEFANT_REGKEY "_connection")
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jbe/bsw@0
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12 #define MONDELEFANT_CONN_DATA_REGKEY (MONDELEFANT_REGKEY "_connection_data")
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jbe/bsw@0
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13 #define MONDELEFANT_RESULT_MT_REGKEY (MONDELEFANT_REGKEY "_result")
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jbe/bsw@0
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14 #define MONDELEFANT_ERROROBJECT_MT_REGKEY (MONDELEFANT_REGKEY "_errorobject")
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jbe/bsw@0
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15 #define MONDELEFANT_CLASS_MT_REGKEY (MONDELEFANT_REGKEY "_class")
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jbe/bsw@0
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16 #define MONDELEFANT_CLASS_PROTO_REGKEY (MONDELEFANT_REGKEY "_class_proto")
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17
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jbe/bsw@0
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18 #define MONDELEFANT_SERVER_ENCODING_ASCII 0
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jbe/bsw@0
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19 #define MONDELEFANT_SERVER_ENCODING_UTF8 1
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20
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21 typedef struct {
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jbe/bsw@0
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22 PGconn *pgconn;
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jbe/bsw@0
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23 int server_encoding;
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jbe/bsw@0
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24 } mondelefant_conn_t;
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jbe/bsw@0
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25
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jbe/bsw@0
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26 static size_t utf8_position_to_byte(const char *str, size_t utf8pos) {
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27 size_t bytepos;
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jbe/bsw@0
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28 for (bytepos = 0; utf8pos > 0; bytepos++) {
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29 uint8_t c;
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30 c = ((const uint8_t *)str)[bytepos];
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jbe/bsw@0
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31 if (!c) break;
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jbe/bsw@0
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32 if (c <= 0x7f || c >= 0xc0) utf8pos--;
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jbe/bsw@0
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33 }
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jbe/bsw@0
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34 return bytepos;
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jbe/bsw@0
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35 }
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jbe/bsw@0
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36
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jbe/bsw@0
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37 #define MONDELEFANT_POSTGRESQL_BINARY_OID ((Oid)17)
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38
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jbe/bsw@0
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39 static const char *mondelefant_oid_to_typestr(Oid oid) {
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jbe/bsw@0
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40 switch (oid) {
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jbe/bsw@0
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41 case 16: return "bool";
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jbe/bsw@0
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42 case 17: return "bytea";
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43 case 18: return "char";
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44 case 19: return "name";
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45 case 20: return "int8";
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46 case 21: return "int2";
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jbe/bsw@0
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47 case 23: return "int4";
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48 case 25: return "text";
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49 case 26: return "oid";
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jbe/bsw@0
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50 case 27: return "tid";
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51 case 28: return "xid";
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52 case 29: return "cid";
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53 case 600: return "point";
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54 case 601: return "lseg";
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55 case 602: return "path";
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56 case 603: return "box";
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57 case 604: return "polygon";
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58 case 628: return "line";
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59 case 700: return "float4";
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60 case 701: return "float8";
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61 case 705: return "unknown";
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62 case 718: return "circle";
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63 case 790: return "money";
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64 case 829: return "macaddr";
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65 case 869: return "inet";
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66 case 650: return "cidr";
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67 case 1042: return "bpchar";
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68 case 1043: return "varchar";
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69 case 1082: return "date";
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70 case 1083: return "time";
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71 case 1114: return "timestamp";
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72 case 1184: return "timestamptz";
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73 case 1186: return "interval";
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74 case 1266: return "timetz";
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75 case 1560: return "bit";
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76 case 1562: return "varbit";
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77 case 1700: return "numeric";
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jbe/bsw@0
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78 default: return NULL;
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jbe/bsw@0
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79 }
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jbe/bsw@0
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80 }
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81
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jbe/bsw@0
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82 #define mondelefant_errcode_item(incode, outcode) \
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jbe/bsw@0
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83 if (!strncmp(pgcode, (incode), strlen(incode))) return outcode; else
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84
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jbe/bsw@0
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85 #define MONDELEFANT_ERRCODE_UNKNOWN "unknown"
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jbe/bsw@0
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86 #define MONDELEFANT_ERRCODE_CONNECTION "ConnectionException"
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jbe/bsw@0
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87 #define MONDELEFANT_ERRCODE_RESULTCOUNT_LOW "WrongResultSetCount.ResultSetMissing"
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jbe/bsw@0
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88 #define MONDELEFANT_ERRCODE_RESULTCOUNT_HIGH "WrongResultSetCount.TooManyResults"
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jbe/bsw@0
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89 #define MONDELEFANT_ERRCODE_QUERY1_NO_ROWS "NoData.OneRowExpected"
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jbe/bsw@0
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90 #define MONDELEFANT_ERRCODE_QUERY1_MULTIPLE_ROWS "CardinalityViolation.OneRowExpected"
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91
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92 static const char *mondelefant_translate_errcode(const char *pgcode) {
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jbe/bsw@0
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93 if (!pgcode) abort(); // should not happen
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jbe/bsw@0
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94 mondelefant_errcode_item("02", "NoData")
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jbe/bsw@0
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95 mondelefant_errcode_item("03", "SqlStatementNotYetComplete")
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jbe/bsw@0
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96 mondelefant_errcode_item("08", "ConnectionException")
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jbe/bsw@0
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97 mondelefant_errcode_item("09", "TriggeredActionException")
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jbe/bsw@0
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98 mondelefant_errcode_item("0A", "FeatureNotSupported")
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jbe/bsw@0
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99 mondelefant_errcode_item("0B", "InvalidTransactionInitiation")
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jbe/bsw@0
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100 mondelefant_errcode_item("0F", "LocatorException")
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jbe/bsw@0
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101 mondelefant_errcode_item("0L", "InvalidGrantor")
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jbe/bsw@0
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102 mondelefant_errcode_item("0P", "InvalidRoleSpecification")
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jbe/bsw@0
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103 mondelefant_errcode_item("21", "CardinalityViolation")
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jbe/bsw@0
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104 mondelefant_errcode_item("22", "DataException")
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jbe/bsw@0
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105 mondelefant_errcode_item("23001", "IntegrityConstraintViolation.RestrictViolation")
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jbe/bsw@0
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106 mondelefant_errcode_item("23502", "IntegrityConstraintViolation.NotNullViolation")
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jbe/bsw@0
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107 mondelefant_errcode_item("23503", "IntegrityConstraintViolation.ForeignKeyViolation")
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jbe/bsw@0
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108 mondelefant_errcode_item("23505", "IntegrityConstraintViolation.UniqueViolation")
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jbe/bsw@0
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109 mondelefant_errcode_item("23514", "IntegrityConstraintViolation.CheckViolation")
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jbe/bsw@0
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110 mondelefant_errcode_item("23", "IntegrityConstraintViolation")
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jbe/bsw@0
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111 mondelefant_errcode_item("24", "InvalidCursorState")
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jbe/bsw@0
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112 mondelefant_errcode_item("25", "InvalidTransactionState")
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jbe/bsw@0
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113 mondelefant_errcode_item("26", "InvalidSqlStatementName")
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jbe/bsw@0
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114 mondelefant_errcode_item("27", "TriggeredDataChangeViolation")
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jbe/bsw@0
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115 mondelefant_errcode_item("28", "InvalidAuthorizationSpecification")
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jbe/bsw@0
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116 mondelefant_errcode_item("2B", "DependentPrivilegeDescriptorsStillExist")
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jbe/bsw@0
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117 mondelefant_errcode_item("2D", "InvalidTransactionTermination")
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jbe/bsw@0
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118 mondelefant_errcode_item("2F", "SqlRoutineException")
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jbe/bsw@0
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119 mondelefant_errcode_item("34", "InvalidCursorName")
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jbe/bsw@0
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120 mondelefant_errcode_item("38", "ExternalRoutineException")
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121 mondelefant_errcode_item("39", "ExternalRoutineInvocationException")
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jbe/bsw@0
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122 mondelefant_errcode_item("3B", "SavepointException")
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jbe/bsw@0
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123 mondelefant_errcode_item("3D", "InvalidCatalogName")
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124 mondelefant_errcode_item("3F", "InvalidSchemaName")
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125 mondelefant_errcode_item("40", "TransactionRollback")
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jbe/bsw@0
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126 mondelefant_errcode_item("42", "SyntaxErrorOrAccessRuleViolation")
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jbe/bsw@0
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127 mondelefant_errcode_item("44", "WithCheckOptionViolation")
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jbe/bsw@0
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128 mondelefant_errcode_item("53", "InsufficientResources")
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jbe/bsw@0
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129 mondelefant_errcode_item("54", "ProgramLimitExceeded")
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130 mondelefant_errcode_item("55", "ObjectNotInPrerequisiteState")
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jbe/bsw@0
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131 mondelefant_errcode_item("57", "OperatorIntervention")
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132 mondelefant_errcode_item("58", "SystemError")
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133 mondelefant_errcode_item("F0", "ConfigurationFileError")
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134 mondelefant_errcode_item("P0", "PlpgsqlError")
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135 mondelefant_errcode_item("XX", "InternalError")
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jbe/bsw@0
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136 return "unknown";
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jbe/bsw@0
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137 }
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jbe/bsw@0
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138
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jbe/bsw@0
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139 static int mondelefant_check_error_class(
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jbe/bsw@0
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140 const char *errcode, const char *errclass
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jbe/bsw@0
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141 ) {
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jbe/bsw@0
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142 size_t i = 0;
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jbe/bsw@0
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143 while (1) {
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jbe/bsw@0
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144 if (errclass[i] == 0) {
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jbe/bsw@0
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145 if (errcode[i] == 0 || errcode[i] == '.') return 1;
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jbe/bsw@0
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146 else return 0;
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jbe/bsw@0
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147 }
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jbe/bsw@0
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148 if (errcode[i] != errclass[i]) return 0;
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jbe/bsw@0
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149 i++;
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jbe/bsw@0
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150 }
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jbe/bsw@0
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151 }
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152
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153 static void mondelefant_push_first_line(lua_State *L, const char *str) {
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jbe/bsw@0
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154 char *str2;
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jbe/bsw@0
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155 size_t i = 0;
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jbe/bsw@0
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156 if (!str) abort(); // should not happen
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jbe/bsw@0
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157 str2 = strdup(str);
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jbe/bsw@0
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158 while (1) {
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jbe/bsw@0
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159 char c = str2[i];
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jbe/bsw@0
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160 if (c == '\n' || c == '\r' || c == 0) { str2[i] = 0; break; }
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jbe/bsw@0
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161 i++;
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jbe/bsw@0
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162 };
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jbe/bsw@0
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163 lua_pushstring(L, str2);
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164 free(str2);
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jbe/bsw@0
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165 }
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jbe/bsw@0
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166
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jbe/bsw@0
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167 static int mondelefant_connect(lua_State *L) {
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jbe/bsw@0
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168 luaL_Buffer buf;
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jbe/bsw@0
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169 const char *conninfo;
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jbe/bsw@0
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170 PGconn *pgconn;
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jbe/bsw@0
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171 mondelefant_conn_t *conn;
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jbe/bsw@0
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172 lua_settop(L, 1);
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jbe/bsw@0
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173 lua_getfield(L, 1, "engine"); // 2
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jbe/bsw@0
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174 if (!lua_toboolean(L, 2)) {
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jbe/bsw@0
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175 return luaL_error(L, "No database engine selected.");
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jbe/bsw@0
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176 }
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jbe/bsw@0
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177 lua_pushliteral(L, "postgresql"); // 3
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jbe/bsw@0
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178 if (!lua_rawequal(L, 2, 3)) {
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jbe/bsw@0
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179 return luaL_error(L,
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jbe/bsw@0
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180 "Only database engine 'postgresql' is supported."
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jbe/bsw@0
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181 );
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jbe/bsw@0
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182 }
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jbe/bsw@0
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183 lua_settop(L, 1);
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jbe/bsw@0
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184 lua_pushnil(L); // slot for key at stack position 2
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jbe/bsw@0
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185 lua_pushnil(L); // slot for value at stack position 3
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jbe/bsw@0
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186 luaL_buffinit(L, &buf);
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jbe/bsw@0
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187 {
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jbe/bsw@0
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188 int need_seperator = 0;
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jbe/bsw@0
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189 while (lua_pushvalue(L, 2), lua_next(L, 1)) {
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jbe/bsw@0
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190 lua_replace(L, 3);
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jbe/bsw@0
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191 lua_replace(L, 2);
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jbe/bsw@0
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192 // NOTE: numbers will be converted to strings automatically here,
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jbe/bsw@0
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193 // but perhaps this will change in future versions of lua
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jbe/bsw@0
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194 luaL_argcheck(L,
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jbe/bsw@0
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195 lua_isstring(L, 2) && lua_isstring(L, 3), 1, "non-string contained"
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jbe/bsw@0
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196 );
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jbe/bsw@0
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197 lua_pushvalue(L, 2);
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jbe/bsw@0
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198 lua_pushliteral(L, "engine");
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jbe/bsw@0
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199 if (!lua_rawequal(L, -2, -1)) {
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jbe/bsw@0
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200 const char *value;
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jbe/bsw@0
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201 size_t value_len;
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jbe/bsw@0
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202 size_t value_pos = 0;
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jbe/bsw@0
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203 lua_pop(L, 1);
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jbe/bsw@0
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204 if (need_seperator) luaL_addchar(&buf, ' ');
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jbe/bsw@0
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205 luaL_addvalue(&buf);
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jbe/bsw@0
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206 luaL_addchar(&buf, '=');
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jbe/bsw@0
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207 luaL_addchar(&buf, '\'');
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jbe/bsw@0
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208 value = lua_tolstring(L, 3, &value_len);
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jbe/bsw@0
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209 do {
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jbe/bsw@0
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210 char c;
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jbe/bsw@0
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211 c = value[value_pos++];
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jbe/bsw@0
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212 if (c == '\'') luaL_addchar(&buf, '\\');
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jbe/bsw@0
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213 luaL_addchar(&buf, c);
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jbe/bsw@0
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214 } while (value_pos < value_len);
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jbe/bsw@0
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215 luaL_addchar(&buf, '\'');
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jbe/bsw@0
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216 need_seperator = 1;
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jbe/bsw@0
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217 } else {
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jbe/bsw@0
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218 lua_pop(L, 1);
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jbe/bsw@0
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219 }
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jbe/bsw@0
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220 }
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jbe/bsw@0
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221 }
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jbe/bsw@0
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222 luaL_pushresult(&buf);
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jbe/bsw@0
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223 lua_replace(L, 2);
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jbe/bsw@0
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224 lua_settop(L, 2);
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jbe/bsw@0
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225 conninfo = lua_tostring(L, 2);
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226 pgconn = PQconnectdb(conninfo);
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jbe/bsw@0
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227 if (!pgconn) {
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jbe/bsw@0
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228 return luaL_error(L,
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jbe/bsw@0
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229 "Error in libpq while creating 'PGconn' structure."
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jbe/bsw@0
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230 );
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jbe/bsw@0
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231 }
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jbe/bsw@0
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232 if (PQstatus(pgconn) != CONNECTION_OK) {
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jbe/bsw@0
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233 const char *errmsg;
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jbe/bsw@0
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234 lua_pushnil(L);
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jbe/bsw@0
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235 errmsg = PQerrorMessage(pgconn);
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jbe/bsw@0
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236 if (errmsg) {
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jbe/bsw@0
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237 mondelefant_push_first_line(L, errmsg);
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jbe/bsw@0
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238 } else {
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jbe/bsw@0
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239 lua_pushliteral(L,
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jbe/bsw@0
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240 "Error while connecting to database, but no error message given."
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jbe/bsw@0
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241 );
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jbe/bsw@0
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242 }
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jbe/bsw@0
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243 lua_pushliteral(L, MONDELEFANT_ERRCODE_CONNECTION);
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jbe/bsw@0
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244 PQfinish(pgconn);
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jbe/bsw@0
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245 return 3;
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jbe/bsw@0
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246 }
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jbe/bsw@0
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247 lua_settop(L, 0);
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jbe/bsw@0
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248 conn = lua_newuserdata(L, sizeof(*conn)); // 1
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jbe/bsw@0
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249 conn->pgconn = pgconn;
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jbe/bsw@0
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250 {
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jbe/bsw@0
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251 const char *charset;
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jbe/bsw@0
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252 charset = PQparameterStatus(pgconn, "server_encoding");
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jbe/bsw@0
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253 if (charset && !strcmp(charset, "UTF8")) {
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jbe/bsw@0
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254 conn->server_encoding = MONDELEFANT_SERVER_ENCODING_UTF8;
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jbe/bsw@0
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255 } else {
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jbe/bsw@0
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256 conn->server_encoding = MONDELEFANT_SERVER_ENCODING_ASCII;
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jbe/bsw@0
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257 }
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jbe/bsw@0
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258 }
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jbe/bsw@0
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259
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jbe/bsw@0
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260 luaL_getmetatable(L, MONDELEFANT_CONN_MT_REGKEY); // 2
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jbe/bsw@0
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261 lua_setmetatable(L, 1);
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jbe/bsw@0
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262
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jbe/bsw@0
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263 lua_getfield(L, LUA_REGISTRYINDEX, MONDELEFANT_CONN_DATA_REGKEY); // 2
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jbe/bsw@0
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264 lua_pushvalue(L, 1); // 3
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jbe/bsw@0
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265 lua_newtable(L); // 4
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jbe/bsw@0
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266 lua_settable(L, 2);
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jbe/bsw@0
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267 lua_settop(L, 1);
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jbe/bsw@0
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268
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jbe/bsw@0
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269 lua_pushliteral(L, "postgresql");
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jbe/bsw@0
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270 lua_setfield(L, 1, "engine");
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jbe/bsw@0
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271 return 1;
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jbe/bsw@0
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272 }
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jbe/bsw@0
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273
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jbe/bsw@0
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274 static mondelefant_conn_t *mondelefant_get_conn(lua_State *L, int index) {
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jbe/bsw@0
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275 mondelefant_conn_t *conn;
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jbe/bsw@0
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276 conn = luaL_checkudata(L, index, MONDELEFANT_CONN_MT_REGKEY);
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jbe/bsw@0
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277 if (!conn->pgconn) {
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jbe/bsw@0
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278 luaL_error(L, "PostgreSQL connection has been closed.");
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jbe/bsw@0
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279 return NULL;
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jbe/bsw@0
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280 }
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jbe/bsw@0
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281 return conn;
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jbe/bsw@0
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282 }
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jbe/bsw@0
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283
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jbe/bsw@0
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284 static int mondelefant_conn_index(lua_State *L) {
|
jbe/bsw@0
|
285 lua_settop(L, 2);
|
jbe/bsw@0
|
286 lua_getfield(L, LUA_REGISTRYINDEX, MONDELEFANT_CONN_DATA_REGKEY); // 3
|
jbe/bsw@0
|
287 lua_pushvalue(L, 1); // 4
|
jbe/bsw@0
|
288 lua_gettable(L, 3); // 4
|
jbe/bsw@0
|
289 lua_remove(L, 3); // connection specific data-table at stack position 3
|
jbe/bsw@0
|
290 lua_pushvalue(L, 2); // 4
|
jbe/bsw@0
|
291 lua_gettable(L, 3); // 4
|
jbe/bsw@0
|
292 if (!lua_isnil(L, 4)) return 1;
|
jbe/bsw@0
|
293 lua_settop(L, 3);
|
jbe/bsw@0
|
294 lua_getfield(L, 3, "prototype"); // 4
|
jbe/bsw@0
|
295 if (lua_toboolean(L, 4)) {
|
jbe/bsw@0
|
296 lua_pushvalue(L, 2); // 5
|
jbe/bsw@0
|
297 lua_gettable(L, 4); // 5
|
jbe/bsw@0
|
298 if (!lua_isnil(L, 5)) return 1;
|
jbe/bsw@0
|
299 }
|
jbe/bsw@0
|
300 lua_settop(L, 2);
|
jbe/bsw@0
|
301 lua_getfield(L, LUA_REGISTRYINDEX, MONDELEFANT_MODULE_REGKEY); // 3
|
jbe/bsw@0
|
302 lua_getfield(L, 3, "postgresql_connection_prototype"); // 4
|
jbe/bsw@0
|
303 if (lua_toboolean(L, 4)) {
|
jbe/bsw@0
|
304 lua_pushvalue(L, 2); // 5
|
jbe/bsw@0
|
305 lua_gettable(L, 4); // 5
|
jbe/bsw@0
|
306 if (!lua_isnil(L, 5)) return 1;
|
jbe/bsw@0
|
307 }
|
jbe/bsw@0
|
308 lua_settop(L, 3);
|
jbe/bsw@0
|
309 lua_getfield(L, 3, "connection_prototype"); // 4
|
jbe/bsw@0
|
310 if (lua_toboolean(L, 4)) {
|
jbe/bsw@0
|
311 lua_pushvalue(L, 2); // 5
|
jbe/bsw@0
|
312 lua_gettable(L, 4); // 5
|
jbe/bsw@0
|
313 if (!lua_isnil(L, 5)) return 1;
|
jbe/bsw@0
|
314 }
|
jbe/bsw@0
|
315 return 0;
|
jbe/bsw@0
|
316 }
|
jbe/bsw@0
|
317
|
jbe/bsw@0
|
318 static int mondelefant_conn_newindex(lua_State *L) {
|
jbe/bsw@0
|
319 lua_settop(L, 3);
|
jbe/bsw@0
|
320 lua_getfield(L, LUA_REGISTRYINDEX, MONDELEFANT_CONN_DATA_REGKEY); // 4
|
jbe/bsw@0
|
321 lua_pushvalue(L, 1); // 5
|
jbe/bsw@0
|
322 lua_gettable(L, 4); // 5
|
jbe/bsw@0
|
323 lua_remove(L, 4); // connection specific data-table at stack position 4
|
jbe/bsw@0
|
324 lua_pushvalue(L, 2);
|
jbe/bsw@0
|
325 lua_pushvalue(L, 3);
|
jbe/bsw@0
|
326 lua_settable(L, 4);
|
jbe/bsw@0
|
327 return 0;
|
jbe/bsw@0
|
328 }
|
jbe/bsw@0
|
329
|
jbe/bsw@0
|
330 static int mondelefant_conn_free(lua_State *L) {
|
jbe/bsw@0
|
331 mondelefant_conn_t *conn;
|
jbe/bsw@0
|
332 conn = luaL_checkudata(L, 1, MONDELEFANT_CONN_MT_REGKEY);
|
jbe/bsw@0
|
333 if (conn->pgconn) PQfinish(conn->pgconn);
|
jbe/bsw@0
|
334 conn->pgconn = NULL;
|
jbe/bsw@0
|
335 return 0;
|
jbe/bsw@0
|
336 }
|
jbe/bsw@0
|
337
|
jbe/bsw@0
|
338 static int mondelefant_conn_close(lua_State *L) {
|
jbe/bsw@0
|
339 mondelefant_conn_t *conn;
|
jbe/bsw@0
|
340 lua_settop(L, 1);
|
jbe/bsw@0
|
341 conn = mondelefant_get_conn(L, 1);
|
jbe/bsw@0
|
342 PQfinish(conn->pgconn);
|
jbe/bsw@0
|
343 conn->pgconn = NULL;
|
jbe/bsw@0
|
344 return 0;
|
jbe/bsw@0
|
345 }
|
jbe/bsw@0
|
346
|
jbe/bsw@0
|
347 static int mondelefant_conn_is_ok(lua_State *L) {
|
jbe/bsw@0
|
348 mondelefant_conn_t *conn;
|
jbe/bsw@0
|
349 lua_settop(L, 1);
|
jbe/bsw@0
|
350 conn = mondelefant_get_conn(L, 1);
|
jbe/bsw@0
|
351 lua_pushboolean(L, PQstatus(conn->pgconn) == CONNECTION_OK);
|
jbe/bsw@0
|
352 return 1;
|
jbe/bsw@0
|
353 }
|
jbe/bsw@0
|
354
|
jbe/bsw@0
|
355 static int mondelefant_conn_get_transaction_status(lua_State *L) {
|
jbe/bsw@0
|
356 mondelefant_conn_t *conn;
|
jbe/bsw@0
|
357 lua_settop(L, 1);
|
jbe/bsw@0
|
358 conn = mondelefant_get_conn(L, 1);
|
jbe/bsw@0
|
359 switch (PQtransactionStatus(conn->pgconn)) {
|
jbe/bsw@0
|
360 case PQTRANS_IDLE:
|
jbe/bsw@0
|
361 lua_pushliteral(L, "idle");
|
jbe/bsw@0
|
362 break;
|
jbe/bsw@0
|
363 case PQTRANS_ACTIVE:
|
jbe/bsw@0
|
364 lua_pushliteral(L, "active");
|
jbe/bsw@0
|
365 break;
|
jbe/bsw@0
|
366 case PQTRANS_INTRANS:
|
jbe/bsw@0
|
367 lua_pushliteral(L, "intrans");
|
jbe/bsw@0
|
368 break;
|
jbe/bsw@0
|
369 case PQTRANS_INERROR:
|
jbe/bsw@0
|
370 lua_pushliteral(L, "inerror");
|
jbe/bsw@0
|
371 break;
|
jbe/bsw@0
|
372 default:
|
jbe/bsw@0
|
373 lua_pushliteral(L, "unknown");
|
jbe/bsw@0
|
374 }
|
jbe/bsw@0
|
375 return 1;
|
jbe/bsw@0
|
376 }
|
jbe/bsw@0
|
377
|
jbe/bsw@0
|
378 static int mondelefant_conn_create_list(lua_State *L) {
|
jbe/bsw@0
|
379 lua_settop(L, 2);
|
jbe/bsw@0
|
380 luaL_checkudata(L, 1, MONDELEFANT_CONN_MT_REGKEY);
|
jbe/bsw@0
|
381 if (!lua_toboolean(L, 2)) {
|
jbe/bsw@0
|
382 lua_newtable(L);
|
jbe/bsw@0
|
383 lua_replace(L, 2); // new result at stack position 2
|
jbe/bsw@0
|
384 }
|
jbe/bsw@0
|
385 lua_getfield(L, LUA_REGISTRYINDEX, MONDELEFANT_RESULT_MT_REGKEY); // 3
|
jbe/bsw@0
|
386 lua_setmetatable(L, 2);
|
jbe/bsw@0
|
387 lua_pushvalue(L, 1); // 3
|
jbe/bsw@0
|
388 lua_setfield(L, 2, "_connection");
|
jbe/bsw@0
|
389 lua_pushliteral(L, "list"); // 3
|
jbe/bsw@0
|
390 lua_setfield(L, 2, "_type");
|
jbe/bsw@0
|
391 return 1;
|
jbe/bsw@0
|
392 }
|
jbe/bsw@0
|
393
|
jbe/bsw@0
|
394 static int mondelefant_conn_create_object(lua_State *L) {
|
jbe/bsw@0
|
395 lua_settop(L, 2);
|
jbe/bsw@0
|
396 luaL_checkudata(L, 1, MONDELEFANT_CONN_MT_REGKEY);
|
jbe/bsw@0
|
397 if (!lua_toboolean(L, 2)) {
|
jbe/bsw@0
|
398 lua_newtable(L);
|
jbe/bsw@0
|
399 lua_replace(L, 2); // new result at stack position 2
|
jbe/bsw@0
|
400 }
|
jbe/bsw@0
|
401 lua_getfield(L, LUA_REGISTRYINDEX, MONDELEFANT_RESULT_MT_REGKEY); // 3
|
jbe/bsw@0
|
402 lua_setmetatable(L, 2);
|
jbe/bsw@0
|
403 lua_pushvalue(L, 1); // 3
|
jbe/bsw@0
|
404 lua_setfield(L, 2, "_connection");
|
jbe/bsw@0
|
405 lua_pushliteral(L, "object"); // 3
|
jbe/bsw@0
|
406 lua_setfield(L, 2, "_type"); // "object" or "list"
|
jbe/bsw@0
|
407 lua_newtable(L); // 3
|
jbe/bsw@0
|
408 lua_setfield(L, 2, "_data");
|
jbe/bsw@0
|
409 lua_newtable(L); // 3
|
jbe/bsw@0
|
410 lua_setfield(L, 2, "_dirty");
|
jbe/bsw@0
|
411 lua_newtable(L); // 3
|
jbe/bsw@0
|
412 lua_setfield(L, 2, "_ref"); // nil=no info, false=nil, else table
|
jbe/bsw@0
|
413 return 1;
|
jbe/bsw@0
|
414 }
|
jbe/bsw@0
|
415
|
jbe/bsw@0
|
416 static int mondelefant_conn_quote_string(lua_State *L) {
|
jbe/bsw@0
|
417 mondelefant_conn_t *conn;
|
jbe/bsw@0
|
418 const char *input;
|
jbe/bsw@0
|
419 size_t input_len;
|
jbe/bsw@0
|
420 char *output;
|
jbe/bsw@0
|
421 size_t output_len;
|
jbe/bsw@0
|
422 lua_settop(L, 2);
|
jbe/bsw@0
|
423 conn = mondelefant_get_conn(L, 1);
|
jbe/bsw@0
|
424 input = luaL_checklstring(L, 2, &input_len);
|
jbe/bsw@0
|
425 if (input_len > (SIZE_MAX / sizeof(char) - 3) / 2) {
|
jbe/bsw@0
|
426 return luaL_error(L, "String to be escaped is too long.");
|
jbe/bsw@0
|
427 }
|
jbe/bsw@0
|
428 output = malloc((2 * input_len + 3) * sizeof(char));
|
jbe/bsw@0
|
429 if (!output) {
|
jbe/bsw@0
|
430 return luaL_error(L, "Could not allocate memory for string quoting.");
|
jbe/bsw@0
|
431 }
|
jbe/bsw@0
|
432 output[0] = '\'';
|
jbe/bsw@0
|
433 output_len = PQescapeStringConn(
|
jbe/bsw@0
|
434 conn->pgconn, output + 1, input, input_len, NULL
|
jbe/bsw@0
|
435 );
|
jbe/bsw@0
|
436 output[output_len + 1] = '\'';
|
jbe/bsw@0
|
437 output[output_len + 2] = 0;
|
jbe/bsw@0
|
438 lua_pushlstring(L, output, output_len + 2);
|
jbe/bsw@0
|
439 free(output);
|
jbe/bsw@0
|
440 return 1;
|
jbe/bsw@0
|
441 }
|
jbe/bsw@0
|
442
|
jbe/bsw@0
|
443 static int mondelefant_conn_quote_binary(lua_State *L) {
|
jbe/bsw@0
|
444 mondelefant_conn_t *conn;
|
jbe/bsw@0
|
445 const char *input;
|
jbe/bsw@0
|
446 size_t input_len;
|
jbe/bsw@0
|
447 char *output;
|
jbe/bsw@0
|
448 size_t output_len;
|
jbe/bsw@0
|
449 luaL_Buffer buf;
|
jbe/bsw@0
|
450 lua_settop(L, 2);
|
jbe/bsw@0
|
451 conn = mondelefant_get_conn(L, 1);
|
jbe/bsw@0
|
452 input = luaL_checklstring(L, 2, &input_len);
|
jbe/bsw@0
|
453 output = (char *)PQescapeByteaConn(
|
jbe/bsw@0
|
454 conn->pgconn, (const unsigned char *)input, input_len, &output_len
|
jbe/bsw@0
|
455 );
|
jbe/bsw@0
|
456 if (!output) {
|
jbe/bsw@0
|
457 return luaL_error(L, "Could not allocate memory for binary quoting.");
|
jbe/bsw@0
|
458 }
|
jbe/bsw@0
|
459 luaL_buffinit(L, &buf);
|
jbe/bsw@0
|
460 luaL_addchar(&buf, '\'');
|
jbe/bsw@0
|
461 luaL_addlstring(&buf, output, output_len - 1);
|
jbe/bsw@0
|
462 luaL_addchar(&buf, '\'');
|
jbe/bsw@0
|
463 luaL_pushresult(&buf);
|
jbe/bsw@0
|
464 PQfreemem(output);
|
jbe/bsw@0
|
465 return 1;
|
jbe/bsw@0
|
466 }
|
jbe/bsw@0
|
467
|
jbe/bsw@0
|
468 static int mondelefant_conn_assemble_command(lua_State *L) {
|
jbe/bsw@0
|
469 mondelefant_conn_t *conn;
|
jbe/bsw@0
|
470 int paramidx = 2;
|
jbe/bsw@0
|
471 const char *template;
|
jbe/bsw@0
|
472 size_t template_pos = 0;
|
jbe/bsw@0
|
473 luaL_Buffer buf;
|
jbe/bsw@0
|
474 lua_settop(L, 2);
|
jbe/bsw@0
|
475 conn = mondelefant_get_conn(L, 1);
|
jbe/bsw@0
|
476 if (lua_isstring(L, 2)) {
|
jbe/bsw@0
|
477 lua_tostring(L, 2);
|
jbe/bsw@0
|
478 return 1;
|
jbe/bsw@0
|
479 }
|
jbe/bsw@0
|
480 // extra feature for objects with __tostring meta-method:
|
jbe/bsw@0
|
481 if (luaL_callmeta(L, 2, "__tostring")) return 1;
|
jbe/bsw@0
|
482 luaL_checktype(L, 2, LUA_TTABLE);
|
jbe/bsw@0
|
483 lua_rawgeti(L, 2, 1); // 3
|
jbe/bsw@0
|
484 luaL_argcheck(L,
|
jbe/bsw@0
|
485 lua_isstring(L, 3),
|
jbe/bsw@0
|
486 2,
|
jbe/bsw@0
|
487 "First entry of SQL command structure is not a string."
|
jbe/bsw@0
|
488 );
|
jbe/bsw@0
|
489 template = lua_tostring(L, 3);
|
jbe/bsw@0
|
490 lua_pushliteral(L, "input_converter"); // 4
|
jbe/bsw@0
|
491 lua_gettable(L, 1); // input_converter at stack position 4
|
jbe/bsw@0
|
492 lua_pushnil(L); // free space at stack position 5
|
jbe/bsw@0
|
493 lua_pushnil(L); // free space at stack position 6
|
jbe/bsw@0
|
494 luaL_buffinit(L, &buf);
|
jbe/bsw@0
|
495 while (1) {
|
jbe/bsw@0
|
496 char c;
|
jbe/bsw@0
|
497 c = template[template_pos++];
|
jbe/bsw@0
|
498 if (!c) break;
|
jbe/bsw@0
|
499 if (c == '?' || c == '$') {
|
jbe/bsw@0
|
500 if (template[template_pos] == c) {
|
jbe/bsw@0
|
501 template_pos++;
|
jbe/bsw@0
|
502 luaL_addchar(&buf, c);
|
jbe/bsw@0
|
503 } else {
|
jbe/bsw@0
|
504 luaL_Buffer keybuf;
|
jbe/bsw@0
|
505 int subcmd;
|
jbe/bsw@0
|
506 subcmd = (c == '$');
|
jbe/bsw@0
|
507 luaL_buffinit(L, &keybuf);
|
jbe/bsw@0
|
508 while (1) {
|
jbe/bsw@0
|
509 c = template[template_pos];
|
jbe/bsw@0
|
510 if (
|
jbe/bsw@0
|
511 (c < 'A' || c > 'Z') &&
|
jbe/bsw@0
|
512 (c < 'a' || c > 'z') &&
|
jbe/bsw@0
|
513 (c < '0' || c > '9') &&
|
jbe/bsw@0
|
514 (c != '_')
|
jbe/bsw@0
|
515 ) break;
|
jbe/bsw@0
|
516 luaL_addchar(&keybuf, c);
|
jbe/bsw@0
|
517 template_pos++;
|
jbe/bsw@0
|
518 }
|
jbe/bsw@0
|
519 luaL_pushresult(&keybuf);
|
jbe/bsw@0
|
520 if (lua_objlen(L, -1)) {
|
jbe/bsw@0
|
521 lua_pushvalue(L, -1); // save key on stack
|
jbe/bsw@0
|
522 lua_gettable(L, 2); // fetch value
|
jbe/bsw@0
|
523 } else {
|
jbe/bsw@0
|
524 lua_pop(L, 1);
|
jbe/bsw@0
|
525 lua_pushnil(L); // put nil on key position
|
jbe/bsw@0
|
526 lua_rawgeti(L, 2, paramidx++); // fetch value
|
jbe/bsw@0
|
527 }
|
jbe/bsw@0
|
528 // stack: ..., <buffer>, key, pre-value
|
jbe/bsw@0
|
529 if (subcmd) {
|
jbe/bsw@0
|
530 size_t i;
|
jbe/bsw@0
|
531 size_t count;
|
jbe/bsw@0
|
532 lua_replace(L, 5); // sub-structure at stack position 5
|
jbe/bsw@0
|
533 lua_pop(L, 1); // drop stored key
|
jbe/bsw@0
|
534 // stack: ..., <buffer>
|
jbe/bsw@0
|
535 luaL_argcheck(L,
|
jbe/bsw@0
|
536 !lua_isnil(L, 5),
|
jbe/bsw@0
|
537 2,
|
jbe/bsw@0
|
538 "SQL sub-structure not found."
|
jbe/bsw@0
|
539 );
|
jbe/bsw@0
|
540 luaL_argcheck(L,
|
jbe/bsw@0
|
541 lua_type(L, 5) == LUA_TTABLE,
|
jbe/bsw@0
|
542 2,
|
jbe/bsw@0
|
543 "SQL sub-structure must be a table."
|
jbe/bsw@0
|
544 );
|
jbe/bsw@0
|
545 // stack: ..., <buffer>
|
jbe/bsw@0
|
546 lua_getfield(L, 5, "sep");
|
jbe/bsw@0
|
547 lua_replace(L, 6); // seperator at stack position 6
|
jbe/bsw@0
|
548 if (lua_isnil(L, 6)) {
|
jbe/bsw@0
|
549 lua_pushstring(L, ", ");
|
jbe/bsw@0
|
550 lua_replace(L, 6);
|
jbe/bsw@0
|
551 } else {
|
jbe/bsw@0
|
552 luaL_argcheck(L,
|
jbe/bsw@0
|
553 lua_isstring(L, 6),
|
jbe/bsw@0
|
554 2,
|
jbe/bsw@0
|
555 "Seperator of SQL sub-structure has to be a string."
|
jbe/bsw@0
|
556 );
|
jbe/bsw@0
|
557 }
|
jbe/bsw@0
|
558 count = lua_objlen(L, 5);
|
jbe/bsw@0
|
559 for (i = 0; i < count; i++) {
|
jbe/bsw@0
|
560 if (i) {
|
jbe/bsw@0
|
561 lua_pushvalue(L, 6);
|
jbe/bsw@0
|
562 luaL_addvalue(&buf);
|
jbe/bsw@0
|
563 }
|
jbe/bsw@0
|
564 lua_pushcfunction(L, mondelefant_conn_assemble_command);
|
jbe/bsw@0
|
565 lua_pushvalue(L, 1);
|
jbe/bsw@0
|
566 lua_rawgeti(L, 5, i+1);
|
jbe/bsw@0
|
567 lua_call(L, 2, 1);
|
jbe/bsw@0
|
568 luaL_addvalue(&buf);
|
jbe/bsw@0
|
569 }
|
jbe/bsw@0
|
570 } else {
|
jbe/bsw@0
|
571 if (lua_toboolean(L, 4)) {
|
jbe/bsw@0
|
572 // call input_converter with connection handle, value and info
|
jbe/bsw@0
|
573 lua_pushvalue(L, 4);
|
jbe/bsw@0
|
574 lua_pushvalue(L, 1);
|
jbe/bsw@0
|
575 lua_pushvalue(L, -3);
|
jbe/bsw@0
|
576 lua_newtable(L);
|
jbe/bsw@0
|
577 lua_pushvalue(L, -6);
|
jbe/bsw@0
|
578 lua_setfield(L, -2, "field_name");
|
jbe/bsw@0
|
579 lua_call(L, 3, 1);
|
jbe/bsw@0
|
580 // stack: ..., <buffer>, key, pre-value, final-value
|
jbe/bsw@0
|
581 lua_remove(L, -2);
|
jbe/bsw@0
|
582 lua_remove(L, -2);
|
jbe/bsw@0
|
583 // stack: ..., <buffer>, final-value
|
jbe/bsw@0
|
584 if (!lua_isstring(L, -1)) {
|
jbe/bsw@0
|
585 return luaL_error(L, "input_converter returned non-string.");
|
jbe/bsw@0
|
586 }
|
jbe/bsw@0
|
587 } else {
|
jbe/bsw@0
|
588 lua_remove(L, -2);
|
jbe/bsw@0
|
589 // stack: ..., <buffer>, pre-value
|
jbe/bsw@0
|
590 if (lua_isnil(L, -1)) {
|
jbe/bsw@0
|
591 lua_pushliteral(L, "NULL");
|
jbe/bsw@0
|
592 } else if (lua_type(L, -1) == LUA_TBOOLEAN) {
|
jbe/bsw@0
|
593 lua_pushstring(L, lua_toboolean(L, -1) ? "TRUE" : "FALSE");
|
jbe/bsw@0
|
594 } else if (lua_isstring(L, -1)) {
|
jbe/bsw@0
|
595 // NOTE: In this version of lua a number will be converted
|
jbe/bsw@0
|
596 lua_tostring(L, -1);
|
jbe/bsw@0
|
597 lua_pushcfunction(L, mondelefant_conn_quote_string);
|
jbe/bsw@0
|
598 lua_pushvalue(L, 1);
|
jbe/bsw@0
|
599 lua_pushvalue(L, -3);
|
jbe/bsw@0
|
600 lua_call(L, 2, 1);
|
jbe/bsw@0
|
601 } else {
|
jbe/bsw@0
|
602 return luaL_error(L,
|
jbe/bsw@0
|
603 "Unable to convert SQL value due to unknown type "
|
jbe/bsw@0
|
604 "or missing input_converter."
|
jbe/bsw@0
|
605 );
|
jbe/bsw@0
|
606 }
|
jbe/bsw@0
|
607 // stack: ..., <buffer>, pre-value, final-value
|
jbe/bsw@0
|
608 lua_remove(L, -2);
|
jbe/bsw@0
|
609 // stack: ..., <buffer>, final-value
|
jbe/bsw@0
|
610 }
|
jbe/bsw@0
|
611 luaL_addvalue(&buf);
|
jbe/bsw@0
|
612 }
|
jbe/bsw@0
|
613 }
|
jbe/bsw@0
|
614 } else {
|
jbe/bsw@0
|
615 luaL_addchar(&buf, c);
|
jbe/bsw@0
|
616 }
|
jbe/bsw@0
|
617 }
|
jbe/bsw@0
|
618 luaL_pushresult(&buf);
|
jbe/bsw@0
|
619 return 1;
|
jbe/bsw@0
|
620 }
|
jbe/bsw@0
|
621
|
jbe/bsw@0
|
622 #define MONDELEFANT_MAX_COMMAND_COUNT 64
|
jbe/bsw@0
|
623 #define MONDELEFANT_MAX_COLUMN_COUNT 1024
|
jbe/bsw@0
|
624 #define MONDELEFANT_QUERY_MODE_LIST 1
|
jbe/bsw@0
|
625 #define MONDELEFANT_QUERY_MODE_OBJECT 2
|
jbe/bsw@0
|
626 #define MONDELEFANT_QUERY_MODE_OPT_OBJECT 3
|
jbe/bsw@0
|
627
|
jbe/bsw@0
|
628 static int mondelefant_conn_try_query(lua_State *L) {
|
jbe/bsw@0
|
629 mondelefant_conn_t *conn;
|
jbe/bsw@0
|
630 int command_count;
|
jbe/bsw@0
|
631 int command_idx;
|
jbe/bsw@0
|
632 int modes[MONDELEFANT_MAX_COMMAND_COUNT];
|
jbe/bsw@0
|
633 luaL_Buffer buf;
|
jbe/bsw@0
|
634 int sent_success;
|
jbe/bsw@0
|
635 PGresult *res;
|
jbe/bsw@0
|
636 int rows, cols, row, col;
|
jbe/bsw@0
|
637 conn = mondelefant_get_conn(L, 1);
|
jbe/bsw@0
|
638 command_count = lua_gettop(L) / 2;
|
jbe/bsw@0
|
639 lua_pushnil(L); // needed, if last mode was omitted
|
jbe/bsw@0
|
640 if (command_count > MONDELEFANT_MAX_COMMAND_COUNT) {
|
jbe/bsw@0
|
641 return luaL_error(L, "Exceeded maximum command count in one query.");
|
jbe/bsw@0
|
642 }
|
jbe/bsw@0
|
643 luaL_buffinit(L, &buf);
|
jbe/bsw@0
|
644 for (command_idx = 0; command_idx < command_count; command_idx++) {
|
jbe/bsw@0
|
645 int mode;
|
jbe/bsw@0
|
646 int mode_idx; // stack index of mode string
|
jbe/bsw@0
|
647 if (command_idx) luaL_addchar(&buf, ' ');
|
jbe/bsw@0
|
648 lua_pushcfunction(L, mondelefant_conn_assemble_command);
|
jbe/bsw@0
|
649 lua_pushvalue(L, 1);
|
jbe/bsw@0
|
650 lua_pushvalue(L, 2 + 2 * command_idx);
|
jbe/bsw@0
|
651 lua_call(L, 2, 1);
|
jbe/bsw@0
|
652 luaL_addvalue(&buf);
|
jbe/bsw@0
|
653 luaL_addchar(&buf, ';');
|
jbe/bsw@0
|
654 mode_idx = 3 + 2 * command_idx;
|
jbe/bsw@0
|
655 if (lua_isnil(L, mode_idx)) {
|
jbe/bsw@0
|
656 mode = MONDELEFANT_QUERY_MODE_LIST;
|
jbe/bsw@0
|
657 } else {
|
jbe/bsw@0
|
658 const char *modestr;
|
jbe/bsw@0
|
659 modestr = luaL_checkstring(L, mode_idx);
|
jbe/bsw@0
|
660 if (!strcmp(modestr, "list")) {
|
jbe/bsw@0
|
661 mode = MONDELEFANT_QUERY_MODE_LIST;
|
jbe/bsw@0
|
662 } else if (!strcmp(modestr, "object")) {
|
jbe/bsw@0
|
663 mode = MONDELEFANT_QUERY_MODE_OBJECT;
|
jbe/bsw@0
|
664 } else if (!strcmp(modestr, "opt_object")) {
|
jbe/bsw@0
|
665 mode = MONDELEFANT_QUERY_MODE_OPT_OBJECT;
|
jbe/bsw@0
|
666 } else {
|
jbe/bsw@0
|
667 return luaL_error(L, "Unknown query mode specified.");
|
jbe/bsw@0
|
668 }
|
jbe/bsw@0
|
669 }
|
jbe/bsw@0
|
670 modes[command_idx] = mode;
|
jbe/bsw@0
|
671 }
|
jbe/bsw@0
|
672 luaL_pushresult(&buf); // stack position unknown
|
jbe/bsw@0
|
673 lua_replace(L, 2); // SQL command string to stack position 2
|
jbe/bsw@0
|
674 lua_settop(L, 2);
|
jbe/bsw@0
|
675 lua_getfield(L, 1, "sql_tracer"); // tracer at stack position 3
|
jbe/bsw@0
|
676 if (lua_toboolean(L, 3)) {
|
jbe/bsw@0
|
677 lua_pushvalue(L, 1); // 4
|
jbe/bsw@0
|
678 lua_pushvalue(L, 2); // 5
|
jbe/bsw@0
|
679 lua_call(L, 2, 1); // trace callback at stack position 3
|
jbe/bsw@0
|
680 }
|
jbe/bsw@0
|
681 sent_success = PQsendQuery(conn->pgconn, lua_tostring(L, 2));
|
jbe/bsw@0
|
682 lua_newtable(L); // results in table at stack position 4
|
jbe/bsw@0
|
683 for (command_idx = 0; ; command_idx++) {
|
jbe/bsw@0
|
684 int mode;
|
jbe/bsw@0
|
685 char binary[MONDELEFANT_MAX_COLUMN_COUNT];
|
jbe/bsw@0
|
686 ExecStatusType pgstatus;
|
jbe/bsw@0
|
687 mode = modes[command_idx];
|
jbe/bsw@0
|
688 if (sent_success) {
|
jbe/bsw@0
|
689 res = PQgetResult(conn->pgconn);
|
jbe/bsw@0
|
690 if (command_idx >= command_count && !res) break;
|
jbe/bsw@0
|
691 if (res) {
|
jbe/bsw@0
|
692 pgstatus = PQresultStatus(res);
|
jbe/bsw@0
|
693 rows = PQntuples(res);
|
jbe/bsw@0
|
694 cols = PQnfields(res);
|
jbe/bsw@0
|
695 }
|
jbe/bsw@0
|
696 }
|
jbe/bsw@0
|
697 if (
|
jbe/bsw@0
|
698 !sent_success || command_idx >= command_count || !res ||
|
jbe/bsw@0
|
699 (pgstatus != PGRES_TUPLES_OK && pgstatus != PGRES_COMMAND_OK) ||
|
jbe/bsw@0
|
700 (rows < 1 && mode == MONDELEFANT_QUERY_MODE_OBJECT) ||
|
jbe/bsw@0
|
701 (rows > 1 && mode != MONDELEFANT_QUERY_MODE_LIST)
|
jbe/bsw@0
|
702 ) {
|
jbe/bsw@0
|
703 const char *command;
|
jbe/bsw@0
|
704 command = lua_tostring(L, 2);
|
jbe/bsw@0
|
705 lua_newtable(L); // 5
|
jbe/bsw@0
|
706 lua_getfield(L,
|
jbe/bsw@0
|
707 LUA_REGISTRYINDEX,
|
jbe/bsw@0
|
708 MONDELEFANT_ERROROBJECT_MT_REGKEY
|
jbe/bsw@0
|
709 );
|
jbe/bsw@0
|
710 lua_setmetatable(L, 5);
|
jbe/bsw@0
|
711 lua_pushvalue(L, 1);
|
jbe/bsw@0
|
712 lua_setfield(L, 5, "connection");
|
jbe/bsw@0
|
713 lua_pushinteger(L, command_idx + 1);
|
jbe/bsw@0
|
714 lua_setfield(L, 5, "command_number");
|
jbe/bsw@0
|
715 lua_pushvalue(L, 2);
|
jbe/bsw@0
|
716 lua_setfield(L, 5, "sql_command");
|
jbe/bsw@0
|
717 if (!res) {
|
jbe/bsw@0
|
718 lua_pushliteral(L, MONDELEFANT_ERRCODE_RESULTCOUNT_LOW);
|
jbe/bsw@0
|
719 lua_setfield(L, 5, "code");
|
jbe/bsw@0
|
720 lua_pushliteral(L, "Received too few database result sets.");
|
jbe/bsw@0
|
721 lua_setfield(L, 5, "message");
|
jbe/bsw@0
|
722 } else if (command_idx >= command_count) {
|
jbe/bsw@0
|
723 lua_pushliteral(L, MONDELEFANT_ERRCODE_RESULTCOUNT_HIGH);
|
jbe/bsw@0
|
724 lua_setfield(L, 5, "code");
|
jbe/bsw@0
|
725 lua_pushliteral(L, "Received too many database result sets.");
|
jbe/bsw@0
|
726 lua_setfield(L, 5, "message");
|
jbe/bsw@0
|
727 } else if (
|
jbe/bsw@0
|
728 pgstatus != PGRES_TUPLES_OK && pgstatus != PGRES_COMMAND_OK
|
jbe/bsw@0
|
729 ) {
|
jbe/bsw@0
|
730 const char *sqlstate;
|
jbe/bsw@0
|
731 const char *errmsg;
|
jbe/bsw@0
|
732 lua_pushstring(L, PQresultErrorField(res, PG_DIAG_SEVERITY));
|
jbe/bsw@0
|
733 lua_setfield(L, 5, "pg_severity");
|
jbe/bsw@0
|
734 sqlstate = PQresultErrorField(res, PG_DIAG_SQLSTATE);
|
jbe/bsw@0
|
735 if (sqlstate) {
|
jbe/bsw@0
|
736 lua_pushstring(L, sqlstate);
|
jbe/bsw@0
|
737 lua_setfield(L, 5, "pg_sqlstate");
|
jbe/bsw@0
|
738 lua_pushstring(L, mondelefant_translate_errcode(sqlstate));
|
jbe/bsw@0
|
739 lua_setfield(L, 5, "code");
|
jbe/bsw@0
|
740 } else {
|
jbe/bsw@0
|
741 lua_pushliteral(L, MONDELEFANT_ERRCODE_UNKNOWN);
|
jbe/bsw@0
|
742 lua_setfield(L, 5, "code");
|
jbe/bsw@0
|
743 }
|
jbe/bsw@0
|
744 errmsg = PQresultErrorField(res, PG_DIAG_MESSAGE_PRIMARY);
|
jbe/bsw@0
|
745 if (errmsg) {
|
jbe/bsw@0
|
746 mondelefant_push_first_line(L, errmsg);
|
jbe/bsw@0
|
747 lua_setfield(L, 5, "message");
|
jbe/bsw@0
|
748 lua_pushstring(L, errmsg);
|
jbe/bsw@0
|
749 lua_setfield(L, 5, "pg_message_primary");
|
jbe/bsw@0
|
750 } else {
|
jbe/bsw@0
|
751 lua_pushliteral(L,
|
jbe/bsw@0
|
752 "Error while fetching result, but no error message given."
|
jbe/bsw@0
|
753 );
|
jbe/bsw@0
|
754 lua_setfield(L, 5, "message");
|
jbe/bsw@0
|
755 }
|
jbe/bsw@0
|
756 lua_pushstring(L, PQresultErrorField(res, PG_DIAG_MESSAGE_DETAIL));
|
jbe/bsw@0
|
757 lua_setfield(L, 5, "pg_message_detail");
|
jbe/bsw@0
|
758 lua_pushstring(L, PQresultErrorField(res, PG_DIAG_MESSAGE_HINT));
|
jbe/bsw@0
|
759 lua_setfield(L, 5, "pg_message_hint");
|
jbe/bsw@0
|
760 // NOTE: "position" and "pg_internal_position" are recalculated to
|
jbe/bsw@0
|
761 // byte offsets, as Lua 5.1 is not Unicode aware.
|
jbe/bsw@0
|
762 {
|
jbe/bsw@0
|
763 char *tmp;
|
jbe/bsw@0
|
764 tmp = PQresultErrorField(res, PG_DIAG_STATEMENT_POSITION);
|
jbe/bsw@0
|
765 if (tmp) {
|
jbe/bsw@0
|
766 int pos;
|
jbe/bsw@0
|
767 pos = atoi(tmp) - 1;
|
jbe/bsw@0
|
768 if (conn->server_encoding == MONDELEFANT_SERVER_ENCODING_UTF8) {
|
jbe/bsw@0
|
769 pos = utf8_position_to_byte(command, pos);
|
jbe/bsw@0
|
770 }
|
jbe/bsw@0
|
771 lua_pushinteger(L, pos + 1);
|
jbe/bsw@0
|
772 lua_setfield(L, 5, "position");
|
jbe/bsw@0
|
773 }
|
jbe/bsw@0
|
774 }
|
jbe/bsw@0
|
775 {
|
jbe/bsw@0
|
776 const char *internal_query;
|
jbe/bsw@0
|
777 internal_query = PQresultErrorField(res, PG_DIAG_INTERNAL_QUERY);
|
jbe/bsw@0
|
778 lua_pushstring(L, internal_query);
|
jbe/bsw@0
|
779 lua_setfield(L, 5, "pg_internal_query");
|
jbe/bsw@0
|
780 char *tmp;
|
jbe/bsw@0
|
781 tmp = PQresultErrorField(res, PG_DIAG_INTERNAL_POSITION);
|
jbe/bsw@0
|
782 if (tmp) {
|
jbe/bsw@0
|
783 int pos;
|
jbe/bsw@0
|
784 pos = atoi(tmp) - 1;
|
jbe/bsw@0
|
785 if (conn->server_encoding == MONDELEFANT_SERVER_ENCODING_UTF8) {
|
jbe/bsw@0
|
786 pos = utf8_position_to_byte(internal_query, pos);
|
jbe/bsw@0
|
787 }
|
jbe/bsw@0
|
788 lua_pushinteger(L, pos + 1);
|
jbe/bsw@0
|
789 lua_setfield(L, 5, "pg_internal_position");
|
jbe/bsw@0
|
790 }
|
jbe/bsw@0
|
791 }
|
jbe/bsw@0
|
792 lua_pushstring(L, PQresultErrorField(res, PG_DIAG_CONTEXT));
|
jbe/bsw@0
|
793 lua_setfield(L, 5, "pg_context");
|
jbe/bsw@0
|
794 lua_pushstring(L, PQresultErrorField(res, PG_DIAG_SOURCE_FILE));
|
jbe/bsw@0
|
795 lua_setfield(L, 5, "pg_source_file");
|
jbe/bsw@0
|
796 lua_pushstring(L, PQresultErrorField(res, PG_DIAG_SOURCE_LINE));
|
jbe/bsw@0
|
797 lua_setfield(L, 5, "pg_source_line");
|
jbe/bsw@0
|
798 lua_pushstring(L, PQresultErrorField(res, PG_DIAG_SOURCE_FUNCTION));
|
jbe/bsw@0
|
799 lua_setfield(L, 5, "pg_source_function");
|
jbe/bsw@0
|
800 } else if (rows < 1 && mode == MONDELEFANT_QUERY_MODE_OBJECT) {
|
jbe/bsw@0
|
801 lua_pushliteral(L, MONDELEFANT_ERRCODE_QUERY1_NO_ROWS);
|
jbe/bsw@0
|
802 lua_setfield(L, 5, "code");
|
jbe/bsw@0
|
803 lua_pushliteral(L, "Expected one row, but got empty set.");
|
jbe/bsw@0
|
804 lua_setfield(L, 5, "message");
|
jbe/bsw@0
|
805 } else if (rows > 1 && mode != MONDELEFANT_QUERY_MODE_LIST) {
|
jbe/bsw@0
|
806 lua_pushliteral(L, MONDELEFANT_ERRCODE_QUERY1_MULTIPLE_ROWS);
|
jbe/bsw@0
|
807 lua_setfield(L, 5, "code");
|
jbe/bsw@0
|
808 lua_pushliteral(L, "Got more than one result row.");
|
jbe/bsw@0
|
809 lua_setfield(L, 5, "message");
|
jbe/bsw@0
|
810 } else {
|
jbe/bsw@0
|
811 // should not happen
|
jbe/bsw@0
|
812 abort();
|
jbe/bsw@0
|
813 }
|
jbe/bsw@0
|
814 if (res) {
|
jbe/bsw@0
|
815 PQclear(res);
|
jbe/bsw@0
|
816 while ((res = PQgetResult(conn->pgconn))) PQclear(res);
|
jbe/bsw@0
|
817 }
|
jbe/bsw@0
|
818 if (lua_toboolean(L, 3)) {
|
jbe/bsw@0
|
819 lua_pushvalue(L, 3);
|
jbe/bsw@0
|
820 lua_pushvalue(L, 5);
|
jbe/bsw@0
|
821 lua_call(L, 1, 0);
|
jbe/bsw@0
|
822 }
|
jbe/bsw@0
|
823 return 1;
|
jbe/bsw@0
|
824 }
|
jbe/bsw@0
|
825 rows = PQntuples(res);
|
jbe/bsw@0
|
826 cols = PQnfields(res);
|
jbe/bsw@0
|
827 if (modes[command_idx] == MONDELEFANT_QUERY_MODE_LIST) {
|
jbe/bsw@0
|
828 lua_pushcfunction(L, mondelefant_conn_create_list); // 5
|
jbe/bsw@0
|
829 lua_pushvalue(L, 1); // 6
|
jbe/bsw@0
|
830 lua_call(L, 1, 1); // 5
|
jbe/bsw@0
|
831 } else {
|
jbe/bsw@0
|
832 lua_pushcfunction(L, mondelefant_conn_create_object); // 5
|
jbe/bsw@0
|
833 lua_pushvalue(L, 1); // 6
|
jbe/bsw@0
|
834 lua_call(L, 1, 1); // 5
|
jbe/bsw@0
|
835 }
|
jbe/bsw@0
|
836 lua_newtable(L); // column_info at atack position 6
|
jbe/bsw@0
|
837 for (col = 0; col < cols; col++) {
|
jbe/bsw@0
|
838 lua_newtable(L); // 7
|
jbe/bsw@0
|
839 lua_pushstring(L, PQfname(res, col));
|
jbe/bsw@0
|
840 lua_setfield(L, 7, "field_name");
|
jbe/bsw@0
|
841 {
|
jbe/bsw@0
|
842 Oid tmp;
|
jbe/bsw@0
|
843 tmp = PQftable(res, col);
|
jbe/bsw@0
|
844 if (tmp == InvalidOid) lua_pushnil(L);
|
jbe/bsw@0
|
845 else lua_pushinteger(L, tmp);
|
jbe/bsw@0
|
846 lua_setfield(L, 7, "table_oid");
|
jbe/bsw@0
|
847 }
|
jbe/bsw@0
|
848 {
|
jbe/bsw@0
|
849 int tmp;
|
jbe/bsw@0
|
850 tmp = PQftablecol(res, col);
|
jbe/bsw@0
|
851 if (tmp == 0) lua_pushnil(L);
|
jbe/bsw@0
|
852 else lua_pushinteger(L, tmp);
|
jbe/bsw@0
|
853 lua_setfield(L, 7, "table_column_number");
|
jbe/bsw@0
|
854 }
|
jbe/bsw@0
|
855 {
|
jbe/bsw@0
|
856 Oid tmp;
|
jbe/bsw@0
|
857 tmp = PQftype(res, col);
|
jbe/bsw@0
|
858 binary[col] = (tmp == MONDELEFANT_POSTGRESQL_BINARY_OID);
|
jbe/bsw@0
|
859 lua_pushinteger(L, tmp);
|
jbe/bsw@0
|
860 lua_setfield(L, 7, "type_oid");
|
jbe/bsw@0
|
861 lua_pushstring(L, mondelefant_oid_to_typestr(tmp));
|
jbe/bsw@0
|
862 lua_setfield(L, 7, "type");
|
jbe/bsw@0
|
863 }
|
jbe/bsw@0
|
864 {
|
jbe/bsw@0
|
865 int tmp;
|
jbe/bsw@0
|
866 tmp = PQfmod(res, col);
|
jbe/bsw@0
|
867 if (tmp == -1) lua_pushnil(L);
|
jbe/bsw@0
|
868 else lua_pushinteger(L, tmp);
|
jbe/bsw@0
|
869 lua_setfield(L, 7, "type_modifier");
|
jbe/bsw@0
|
870 }
|
jbe/bsw@0
|
871 lua_rawseti(L, 6, col+1);
|
jbe/bsw@0
|
872 }
|
jbe/bsw@0
|
873 lua_setfield(L, 5, "_column_info"); // stack at position 5 with result
|
jbe/bsw@0
|
874 {
|
jbe/bsw@0
|
875 char *tmp;
|
jbe/bsw@0
|
876 tmp = PQcmdTuples(res);
|
jbe/bsw@0
|
877 if (tmp[0]) {
|
jbe/bsw@0
|
878 lua_pushinteger(L, atoi(tmp));
|
jbe/bsw@0
|
879 lua_setfield(L, 5, "_rows_affected");
|
jbe/bsw@0
|
880 }
|
jbe/bsw@0
|
881 }
|
jbe/bsw@0
|
882 {
|
jbe/bsw@0
|
883 Oid tmp;
|
jbe/bsw@0
|
884 tmp = PQoidValue(res);
|
jbe/bsw@0
|
885 if (tmp != InvalidOid) {
|
jbe/bsw@0
|
886 lua_pushinteger(L, tmp);
|
jbe/bsw@0
|
887 lua_setfield(L, 5, "_oid");
|
jbe/bsw@0
|
888 }
|
jbe/bsw@0
|
889 }
|
jbe/bsw@0
|
890 if (modes[command_idx] == MONDELEFANT_QUERY_MODE_LIST) {
|
jbe/bsw@0
|
891 for (row = 0; row < rows; row++) {
|
jbe/bsw@0
|
892 lua_pushcfunction(L, mondelefant_conn_create_object); // 6
|
jbe/bsw@0
|
893 lua_pushvalue(L, 1); // 7
|
jbe/bsw@0
|
894 lua_call(L, 1, 1); // 6
|
jbe/bsw@0
|
895 for (col = 0; col < cols; col++) {
|
jbe/bsw@0
|
896 if (PQgetisnull(res, row, col)) {
|
jbe/bsw@0
|
897 lua_pushnil(L);
|
jbe/bsw@0
|
898 } else if (binary[col]) {
|
jbe/bsw@0
|
899 size_t binlen;
|
jbe/bsw@0
|
900 char *binval;
|
jbe/bsw@0
|
901 binval = (char *)PQunescapeBytea(
|
jbe/bsw@0
|
902 (unsigned char *)PQgetvalue(res, row, col), &binlen
|
jbe/bsw@0
|
903 );
|
jbe/bsw@0
|
904 if (!binval) {
|
jbe/bsw@0
|
905 return luaL_error(L,
|
jbe/bsw@0
|
906 "Could not allocate memory for binary unescaping."
|
jbe/bsw@0
|
907 );
|
jbe/bsw@0
|
908 }
|
jbe/bsw@0
|
909 lua_pushlstring(L, binval, binlen);
|
jbe/bsw@0
|
910 PQfreemem(binval);
|
jbe/bsw@0
|
911 } else {
|
jbe/bsw@0
|
912 lua_pushstring(L, PQgetvalue(res, row, col));
|
jbe/bsw@0
|
913 }
|
jbe/bsw@0
|
914 lua_rawseti(L, 6, col+1);
|
jbe/bsw@0
|
915 }
|
jbe/bsw@0
|
916 lua_rawseti(L, 5, row+1);
|
jbe/bsw@0
|
917 }
|
jbe/bsw@0
|
918 } else if (rows == 1) {
|
jbe/bsw@0
|
919 for (col = 0; col < cols; col++) {
|
jbe/bsw@0
|
920 if (PQgetisnull(res, 0, col)) {
|
jbe/bsw@0
|
921 lua_pushnil(L);
|
jbe/bsw@0
|
922 } else if (binary[col]) {
|
jbe/bsw@0
|
923 size_t binlen;
|
jbe/bsw@0
|
924 char *binval;
|
jbe/bsw@0
|
925 binval = (char *)PQunescapeBytea(
|
jbe/bsw@0
|
926 (unsigned char *)PQgetvalue(res, 0, col), &binlen
|
jbe/bsw@0
|
927 );
|
jbe/bsw@0
|
928 if (!binval) {
|
jbe/bsw@0
|
929 return luaL_error(L,
|
jbe/bsw@0
|
930 "Could not allocate memory for binary unescaping."
|
jbe/bsw@0
|
931 );
|
jbe/bsw@0
|
932 }
|
jbe/bsw@0
|
933 lua_pushlstring(L, binval, binlen);
|
jbe/bsw@0
|
934 PQfreemem(binval);
|
jbe/bsw@0
|
935 } else {
|
jbe/bsw@0
|
936 lua_pushstring(L, PQgetvalue(res, 0, col));
|
jbe/bsw@0
|
937 }
|
jbe/bsw@0
|
938 lua_rawseti(L, 5, col+1);
|
jbe/bsw@0
|
939 }
|
jbe/bsw@0
|
940 } else {
|
jbe/bsw@0
|
941 // no row in optrow mode
|
jbe/bsw@0
|
942 lua_pop(L, 1);
|
jbe/bsw@0
|
943 lua_pushnil(L);
|
jbe/bsw@0
|
944 }
|
jbe/bsw@0
|
945 lua_rawseti(L, 4, command_idx+1);
|
jbe/bsw@0
|
946 if (lua_gettop(L) != 4) abort(); // should not happen
|
jbe/bsw@0
|
947 PQclear(res);
|
jbe/bsw@0
|
948 }
|
jbe/bsw@0
|
949 // trace callback at stack position 3
|
jbe/bsw@0
|
950 // result at stack position 4 (top of stack)
|
jbe/bsw@0
|
951 if (lua_toboolean(L, 3)) {
|
jbe/bsw@0
|
952 lua_pushvalue(L, 3);
|
jbe/bsw@0
|
953 lua_call(L, 0, 0);
|
jbe/bsw@0
|
954 }
|
jbe/bsw@0
|
955 lua_replace(L, 3); // result at stack position 3
|
jbe/bsw@0
|
956 lua_getfield(L, 1, "output_converter"); // output converter at stack position 4
|
jbe/bsw@0
|
957 for (command_idx = 0; command_idx < command_count; command_idx++) {
|
jbe/bsw@0
|
958 int mode;
|
jbe/bsw@0
|
959 mode = modes[command_idx];
|
jbe/bsw@0
|
960 lua_rawgeti(L, 3, command_idx+1); // raw result at stack position 5
|
jbe/bsw@0
|
961 if (lua_toboolean(L, 5)) {
|
jbe/bsw@0
|
962 lua_getfield(L, 5, "_column_info"); // column_info list at position 6
|
jbe/bsw@0
|
963 cols = lua_objlen(L, 6);
|
jbe/bsw@0
|
964 if (mode == MONDELEFANT_QUERY_MODE_LIST) {
|
jbe/bsw@0
|
965 rows = lua_objlen(L, 5);
|
jbe/bsw@0
|
966 for (row = 0; row < rows; row++) {
|
jbe/bsw@0
|
967 lua_rawgeti(L, 5, row+1); // row at stack position 7
|
jbe/bsw@0
|
968 lua_getfield(L, 7, "_data"); // _data table at stack position 8
|
jbe/bsw@0
|
969 for (col = 0; col < cols; col++) {
|
jbe/bsw@0
|
970 lua_rawgeti(L, 6, col+1); // this column info at position 9
|
jbe/bsw@0
|
971 lua_getfield(L, 9, "field_name"); // 10
|
jbe/bsw@0
|
972 if (lua_toboolean(L, 4)) {
|
jbe/bsw@0
|
973 lua_pushvalue(L, 4); // output-converter
|
jbe/bsw@0
|
974 lua_pushvalue(L, 1); // connection
|
jbe/bsw@0
|
975 lua_rawgeti(L, 7, col+1); // raw-value
|
jbe/bsw@0
|
976 lua_pushvalue(L, 9); // this column info
|
jbe/bsw@0
|
977 lua_call(L, 3, 1); // converted value at position 11
|
jbe/bsw@0
|
978 } else {
|
jbe/bsw@0
|
979 lua_rawgeti(L, 7, col+1); // raw-value at position 11
|
jbe/bsw@0
|
980 }
|
jbe/bsw@0
|
981 lua_pushvalue(L, 11); // 12
|
jbe/bsw@0
|
982 lua_rawseti(L, 7, col+1);
|
jbe/bsw@0
|
983 lua_rawset(L, 8);
|
jbe/bsw@0
|
984 lua_settop(L, 8);
|
jbe/bsw@0
|
985 }
|
jbe/bsw@0
|
986 lua_settop(L, 6);
|
jbe/bsw@0
|
987 }
|
jbe/bsw@0
|
988 } else {
|
jbe/bsw@0
|
989 lua_getfield(L, 5, "_data"); // _data table at stack position 7
|
jbe/bsw@0
|
990 for (col = 0; col < cols; col++) {
|
jbe/bsw@0
|
991 lua_rawgeti(L, 6, col+1); // this column info at position 8
|
jbe/bsw@0
|
992 lua_getfield(L, 8, "field_name"); // 9
|
jbe/bsw@0
|
993 if (lua_toboolean(L, 4)) {
|
jbe/bsw@0
|
994 lua_pushvalue(L, 4); // output-converter
|
jbe/bsw@0
|
995 lua_pushvalue(L, 1); // connection
|
jbe/bsw@0
|
996 lua_rawgeti(L, 5, col+1); // raw-value
|
jbe/bsw@0
|
997 lua_pushvalue(L, 8); // this column info
|
jbe/bsw@0
|
998 lua_call(L, 3, 1); // converted value at position 10
|
jbe/bsw@0
|
999 } else {
|
jbe/bsw@0
|
1000 lua_rawgeti(L, 5, col+1); // raw-value at position 10
|
jbe/bsw@0
|
1001 }
|
jbe/bsw@0
|
1002 lua_pushvalue(L, 10); // 11
|
jbe/bsw@0
|
1003 lua_rawseti(L, 5, col+1);
|
jbe/bsw@0
|
1004 lua_rawset(L, 7);
|
jbe/bsw@0
|
1005 lua_settop(L, 7);
|
jbe/bsw@0
|
1006 }
|
jbe/bsw@0
|
1007 }
|
jbe/bsw@0
|
1008 }
|
jbe/bsw@0
|
1009 lua_settop(L, 4);
|
jbe/bsw@0
|
1010 }
|
jbe/bsw@0
|
1011 lua_settop(L, 3);
|
jbe/bsw@0
|
1012 lua_pushnil(L);
|
jbe/bsw@0
|
1013 for (command_idx = 0; command_idx < command_count; command_idx++) {
|
jbe/bsw@0
|
1014 lua_rawgeti(L, 3, command_idx+1);
|
jbe/bsw@0
|
1015 }
|
jbe/bsw@0
|
1016 return command_count+1;
|
jbe/bsw@0
|
1017 }
|
jbe/bsw@0
|
1018
|
jbe/bsw@0
|
1019 static int mondelefant_errorobject_escalate(lua_State *L) {
|
jbe/bsw@0
|
1020 lua_settop(L, 1);
|
jbe/bsw@0
|
1021 lua_getfield(L, 1, "connection"); // 2
|
jbe/bsw@0
|
1022 lua_getfield(L, 2, "error_objects"); // 3
|
jbe/bsw@0
|
1023 if (lua_toboolean(L, 3)) {
|
jbe/bsw@0
|
1024 lua_settop(L, 1);
|
jbe/bsw@0
|
1025 return lua_error(L);
|
jbe/bsw@0
|
1026 } else {
|
jbe/bsw@0
|
1027 lua_getfield(L, 1, "message"); // 4
|
jbe/bsw@0
|
1028 if (lua_isnil(L, 4)) {
|
jbe/bsw@0
|
1029 return luaL_error(L, "No error message given for escalation.");
|
jbe/bsw@0
|
1030 }
|
jbe/bsw@0
|
1031 return lua_error(L);
|
jbe/bsw@0
|
1032 }
|
jbe/bsw@0
|
1033 }
|
jbe/bsw@0
|
1034
|
jbe/bsw@0
|
1035 static int mondelefant_errorobject_is_kind_of(lua_State *L) {
|
jbe/bsw@0
|
1036 lua_settop(L, 2);
|
jbe/bsw@0
|
1037 lua_getfield(L, 1, "code"); // 3
|
jbe/bsw@0
|
1038 if (lua_isstring(L, 3)) {
|
jbe/bsw@0
|
1039 lua_pushboolean(L,
|
jbe/bsw@0
|
1040 mondelefant_check_error_class(
|
jbe/bsw@0
|
1041 lua_tostring(L, 3), luaL_checkstring(L, 2)
|
jbe/bsw@0
|
1042 )
|
jbe/bsw@0
|
1043 );
|
jbe/bsw@0
|
1044 } else {
|
jbe/bsw@0
|
1045 // only happens for errors where code is not set
|
jbe/bsw@0
|
1046 lua_pushboolean(L, 0);
|
jbe/bsw@0
|
1047 }
|
jbe/bsw@0
|
1048 return 1;
|
jbe/bsw@0
|
1049 }
|
jbe/bsw@0
|
1050
|
jbe/bsw@0
|
1051 static int mondelefant_conn_query(lua_State *L) {
|
jbe/bsw@0
|
1052 int argc;
|
jbe/bsw@0
|
1053 argc = lua_gettop(L);
|
jbe/bsw@0
|
1054 lua_pushvalue(L, 1);
|
jbe/bsw@0
|
1055 lua_insert(L, 1);
|
jbe/bsw@0
|
1056 lua_pushcfunction(L, mondelefant_conn_try_query);
|
jbe/bsw@0
|
1057 lua_insert(L, 2);
|
jbe/bsw@0
|
1058 lua_call(L, argc, LUA_MULTRET); // results (with error) starting at index 2
|
jbe/bsw@0
|
1059 if (lua_toboolean(L, 2)) {
|
jbe/bsw@0
|
1060 lua_pushcfunction(L, mondelefant_errorobject_escalate);
|
jbe/bsw@0
|
1061 lua_pushvalue(L, 2);
|
jbe/bsw@0
|
1062 lua_call(L, 1, 0); // will raise an error
|
jbe/bsw@0
|
1063 return 0; // should not be executed
|
jbe/bsw@0
|
1064 } else {
|
jbe/bsw@0
|
1065 return lua_gettop(L) - 2;
|
jbe/bsw@0
|
1066 }
|
jbe/bsw@0
|
1067 }
|
jbe/bsw@0
|
1068
|
jbe/bsw@0
|
1069 static int mondelefant_set_class(lua_State *L) {
|
jbe/bsw@0
|
1070 lua_settop(L, 2);
|
jbe/bsw@0
|
1071 lua_getmetatable(L, 1); // 3
|
jbe/bsw@0
|
1072 lua_getfield(L, LUA_REGISTRYINDEX, MONDELEFANT_RESULT_MT_REGKEY); // 4
|
jbe/bsw@0
|
1073 luaL_argcheck(L, lua_equal(L, 3, 4), 1, "not a database result");
|
jbe/bsw@0
|
1074 lua_settop(L, 2);
|
jbe/bsw@0
|
1075 lua_getmetatable(L, 2); // 3
|
jbe/bsw@0
|
1076 lua_getfield(L, LUA_REGISTRYINDEX, MONDELEFANT_CLASS_MT_REGKEY); // 4
|
jbe/bsw@0
|
1077 luaL_argcheck(L, lua_equal(L, 3, 4), 2, "not a database class");
|
jbe/bsw@0
|
1078 lua_settop(L, 2);
|
jbe/bsw@0
|
1079 lua_pushvalue(L, 2); // 3
|
jbe/bsw@0
|
1080 lua_setfield(L, 1, "_class");
|
jbe/bsw@0
|
1081 lua_getfield(L, 1, "_type"); // 3
|
jbe/bsw@0
|
1082 lua_pushliteral(L, "list"); // 4
|
jbe/bsw@0
|
1083 if (lua_rawequal(L, 3, 4)) {
|
jbe/bsw@0
|
1084 int i;
|
jbe/bsw@0
|
1085 for (i=0; i < lua_objlen(L, 1); i++) {
|
jbe/bsw@0
|
1086 lua_settop(L, 2);
|
jbe/bsw@0
|
1087 lua_rawgeti(L, 1, i+1); // 3
|
jbe/bsw@0
|
1088 lua_pushvalue(L, 2); // 4
|
jbe/bsw@0
|
1089 lua_setfield(L, 3, "_class");
|
jbe/bsw@0
|
1090 }
|
jbe/bsw@0
|
1091 }
|
jbe/bsw@0
|
1092 lua_settop(L, 1);
|
jbe/bsw@0
|
1093 return 1;
|
jbe/bsw@0
|
1094 }
|
jbe/bsw@0
|
1095
|
jbe/bsw@0
|
1096 static int mondelefant_new_class(lua_State *L) {
|
jbe/bsw@0
|
1097 lua_settop(L, 1);
|
jbe/bsw@0
|
1098 if (!lua_toboolean(L, 1)) {
|
jbe/bsw@0
|
1099 lua_settop(L, 0);
|
jbe/bsw@0
|
1100 lua_newtable(L); // 1
|
jbe/bsw@0
|
1101 }
|
jbe/bsw@0
|
1102 lua_getfield(L, LUA_REGISTRYINDEX, MONDELEFANT_CLASS_MT_REGKEY); // 2
|
jbe/bsw@0
|
1103 lua_setmetatable(L, 1);
|
jbe/bsw@0
|
1104 lua_pushliteral(L, "prototype"); // 2
|
jbe/bsw@0
|
1105 lua_rawget(L, 1); // 2
|
jbe/bsw@0
|
1106 if (!lua_toboolean(L, 2)) {
|
jbe/bsw@0
|
1107 lua_pushliteral(L, "prototype"); // 3
|
jbe/bsw@0
|
1108 lua_getfield(L,
|
jbe/bsw@0
|
1109 LUA_REGISTRYINDEX,
|
jbe/bsw@0
|
1110 MONDELEFANT_CLASS_PROTO_REGKEY
|
jbe/bsw@0
|
1111 ); // 4
|
jbe/bsw@0
|
1112 lua_rawset(L, 1);
|
jbe/bsw@0
|
1113 }
|
jbe/bsw@0
|
1114 lua_settop(L, 1);
|
jbe/bsw@0
|
1115 lua_pushliteral(L, "object"); // 2
|
jbe/bsw@0
|
1116 lua_rawget(L, 1); // 2
|
jbe/bsw@0
|
1117 if (!lua_toboolean(L, 2)) {
|
jbe/bsw@0
|
1118 lua_pushliteral(L, "object"); // 3
|
jbe/bsw@0
|
1119 lua_newtable(L); // 4
|
jbe/bsw@0
|
1120 lua_rawset(L, 1);
|
jbe/bsw@0
|
1121 }
|
jbe/bsw@0
|
1122 lua_settop(L, 1);
|
jbe/bsw@0
|
1123 lua_pushliteral(L, "object_get"); // 2
|
jbe/bsw@0
|
1124 lua_rawget(L, 1); // 2
|
jbe/bsw@0
|
1125 if (!lua_toboolean(L, 2)) {
|
jbe/bsw@0
|
1126 lua_pushliteral(L, "object_get"); // 3
|
jbe/bsw@0
|
1127 lua_newtable(L); // 4
|
jbe/bsw@0
|
1128 lua_rawset(L, 1);
|
jbe/bsw@0
|
1129 }
|
jbe/bsw@0
|
1130 lua_settop(L, 1);
|
jbe/bsw@0
|
1131 lua_pushliteral(L, "object_set"); // 2
|
jbe/bsw@0
|
1132 lua_rawget(L, 1); // 2
|
jbe/bsw@0
|
1133 if (!lua_toboolean(L, 2)) {
|
jbe/bsw@0
|
1134 lua_pushliteral(L, "object_set"); // 3
|
jbe/bsw@0
|
1135 lua_newtable(L); // 4
|
jbe/bsw@0
|
1136 lua_rawset(L, 1);
|
jbe/bsw@0
|
1137 }
|
jbe/bsw@0
|
1138 lua_settop(L, 1);
|
jbe/bsw@0
|
1139 lua_pushliteral(L, "list"); // 2
|
jbe/bsw@0
|
1140 lua_rawget(L, 1); // 2
|
jbe/bsw@0
|
1141 if (!lua_toboolean(L, 2)) {
|
jbe/bsw@0
|
1142 lua_pushliteral(L, "list"); // 3
|
jbe/bsw@0
|
1143 lua_newtable(L); // 4
|
jbe/bsw@0
|
1144 lua_rawset(L, 1);
|
jbe/bsw@0
|
1145 }
|
jbe/bsw@0
|
1146 lua_settop(L, 1);
|
jbe/bsw@0
|
1147 lua_pushliteral(L, "references"); // 2
|
jbe/bsw@0
|
1148 lua_rawget(L, 1); // 2
|
jbe/bsw@0
|
1149 if (!lua_toboolean(L, 2)) {
|
jbe/bsw@0
|
1150 lua_pushliteral(L, "references"); // 3
|
jbe/bsw@0
|
1151 lua_newtable(L); // 4
|
jbe/bsw@0
|
1152 lua_rawset(L, 1);
|
jbe/bsw@0
|
1153 }
|
jbe/bsw@0
|
1154 lua_settop(L, 1);
|
jbe/bsw@0
|
1155 lua_pushliteral(L, "foreign_keys"); // 2
|
jbe/bsw@0
|
1156 lua_rawget(L, 1); // 2
|
jbe/bsw@0
|
1157 if (!lua_toboolean(L, 2)) {
|
jbe/bsw@0
|
1158 lua_pushliteral(L, "foreign_keys"); // 3
|
jbe/bsw@0
|
1159 lua_newtable(L); // 4
|
jbe/bsw@0
|
1160 lua_rawset(L, 1);
|
jbe/bsw@0
|
1161 }
|
jbe/bsw@0
|
1162 lua_settop(L, 1);
|
jbe/bsw@0
|
1163 return 1;
|
jbe/bsw@0
|
1164 }
|
jbe/bsw@0
|
1165
|
jbe/bsw@0
|
1166 static int mondelefant_class_get_reference(lua_State *L) {
|
jbe/bsw@0
|
1167 lua_settop(L, 2);
|
jbe/bsw@0
|
1168 while (lua_toboolean(L, 1)) {
|
jbe/bsw@0
|
1169 lua_getfield(L, 1, "references"); // 3
|
jbe/bsw@0
|
1170 lua_pushvalue(L, 2); // 4
|
jbe/bsw@0
|
1171 lua_gettable(L, 3); // 4
|
jbe/bsw@0
|
1172 if (!lua_isnil(L, 4)) return 1;
|
jbe/bsw@0
|
1173 lua_settop(L, 2);
|
jbe/bsw@0
|
1174 lua_pushliteral(L, "prototype"); // 3
|
jbe/bsw@0
|
1175 lua_rawget(L, 1); // 3
|
jbe/bsw@0
|
1176 lua_replace(L, 1);
|
jbe/bsw@0
|
1177 }
|
jbe/bsw@0
|
1178 return 0;
|
jbe/bsw@0
|
1179 }
|
jbe/bsw@0
|
1180
|
jbe/bsw@0
|
1181 static int mondelefant_class_iterate_over_references(lua_State *L) {
|
jbe/bsw@0
|
1182 return luaL_error(L, "Reference iterator not implemented yet."); // TODO
|
jbe/bsw@0
|
1183 }
|
jbe/bsw@0
|
1184
|
jbe/bsw@0
|
1185 static int mondelefant_class_get_foreign_key_reference_name(lua_State *L) {
|
jbe/bsw@0
|
1186 lua_settop(L, 2);
|
jbe/bsw@0
|
1187 while (lua_toboolean(L, 1)) {
|
jbe/bsw@0
|
1188 lua_getfield(L, 1, "foreign_keys"); // 3
|
jbe/bsw@0
|
1189 lua_pushvalue(L, 2); // 4
|
jbe/bsw@0
|
1190 lua_gettable(L, 3); // 4
|
jbe/bsw@0
|
1191 if (!lua_isnil(L, 4)) return 1;
|
jbe/bsw@0
|
1192 lua_settop(L, 2);
|
jbe/bsw@0
|
1193 lua_pushliteral(L, "prototype"); // 3
|
jbe/bsw@0
|
1194 lua_rawget(L, 1); // 3
|
jbe/bsw@0
|
1195 lua_replace(L, 1);
|
jbe/bsw@0
|
1196 }
|
jbe/bsw@0
|
1197 return 0;
|
jbe/bsw@0
|
1198 }
|
jbe/bsw@0
|
1199
|
jbe/bsw@0
|
1200 static int mondelefant_result_index(lua_State *L) {
|
jbe/bsw@0
|
1201 const char *result_type;
|
jbe/bsw@0
|
1202 lua_settop(L, 2);
|
jbe/bsw@0
|
1203 if (lua_type(L, 2) != LUA_TSTRING || lua_tostring(L, 2)[0] == '_') {
|
jbe/bsw@0
|
1204 lua_rawget(L, 1);
|
jbe/bsw@0
|
1205 return 1;
|
jbe/bsw@0
|
1206 }
|
jbe/bsw@0
|
1207 lua_getfield(L, 1, "_class"); // 3
|
jbe/bsw@0
|
1208 if (!lua_toboolean(L, 3)) {
|
jbe/bsw@0
|
1209 lua_settop(L, 2);
|
jbe/bsw@0
|
1210 lua_getfield(L,
|
jbe/bsw@0
|
1211 LUA_REGISTRYINDEX,
|
jbe/bsw@0
|
1212 MONDELEFANT_CLASS_PROTO_REGKEY
|
jbe/bsw@0
|
1213 ); // 3
|
jbe/bsw@0
|
1214 }
|
jbe/bsw@0
|
1215 lua_getfield(L, 1, "_type"); // 4
|
jbe/bsw@0
|
1216 result_type = lua_tostring(L, 4);
|
jbe/bsw@0
|
1217 if (result_type && !strcmp(result_type, "object")) {
|
jbe/bsw@0
|
1218 lua_settop(L, 3);
|
jbe/bsw@0
|
1219 // try inherited attributes, methods or getter functions:
|
jbe/bsw@0
|
1220 while (lua_toboolean(L, 3)) {
|
jbe/bsw@0
|
1221 lua_getfield(L, 3, "object"); // 4
|
jbe/bsw@0
|
1222 lua_pushvalue(L, 2); // 5
|
jbe/bsw@0
|
1223 lua_gettable(L, 4); // 5
|
jbe/bsw@0
|
1224 if (!lua_isnil(L, 5)) return 1;
|
jbe/bsw@0
|
1225 lua_settop(L, 3);
|
jbe/bsw@0
|
1226 lua_getfield(L, 3, "object_get"); // 4
|
jbe/bsw@0
|
1227 lua_pushvalue(L, 2); // 5
|
jbe/bsw@0
|
1228 lua_gettable(L, 4); // 5
|
jbe/bsw@0
|
1229 if (lua_toboolean(L, 5)) {
|
jbe/bsw@0
|
1230 lua_pushvalue(L, 1); // 6
|
jbe/bsw@0
|
1231 lua_call(L, 1, 1); // 5
|
jbe/bsw@0
|
1232 return 1;
|
jbe/bsw@0
|
1233 }
|
jbe/bsw@0
|
1234 lua_settop(L, 3);
|
jbe/bsw@0
|
1235 lua_pushliteral(L, "prototype"); // 4
|
jbe/bsw@0
|
1236 lua_rawget(L, 3); // 4
|
jbe/bsw@0
|
1237 lua_replace(L, 3);
|
jbe/bsw@0
|
1238 }
|
jbe/bsw@0
|
1239 lua_settop(L, 2);
|
jbe/bsw@0
|
1240 // try primary keys of referenced objects:
|
jbe/bsw@0
|
1241 lua_pushcfunction(L,
|
jbe/bsw@0
|
1242 mondelefant_class_get_foreign_key_reference_name
|
jbe/bsw@0
|
1243 ); // 3
|
jbe/bsw@0
|
1244 lua_getfield(L, 1, "_class"); // 4
|
jbe/bsw@0
|
1245 lua_pushvalue(L, 2); // 5
|
jbe/bsw@0
|
1246 lua_call(L, 2, 1); // 3
|
jbe/bsw@0
|
1247 if (!lua_isnil(L, 3)) {
|
jbe/bsw@0
|
1248 // reference name at stack position 3
|
jbe/bsw@0
|
1249 lua_pushcfunction(L, mondelefant_class_get_reference); // 4
|
jbe/bsw@0
|
1250 lua_getfield(L, 1, "_class"); // 5
|
jbe/bsw@0
|
1251 lua_pushvalue(L, 3); // 6
|
jbe/bsw@0
|
1252 lua_call(L, 2, 1); // reference info at stack position 4
|
jbe/bsw@0
|
1253 lua_getfield(L, 1, "_ref"); // 5
|
jbe/bsw@0
|
1254 lua_getfield(L, 4, "ref"); // 6
|
jbe/bsw@0
|
1255 lua_gettable(L, 5); // 6
|
jbe/bsw@0
|
1256 if (!lua_isnil(L, 6)) {
|
jbe/bsw@0
|
1257 if (lua_toboolean(L, 6)) {
|
jbe/bsw@0
|
1258 lua_getfield(L, 4, "that_key"); // 7
|
jbe/bsw@0
|
1259 if (lua_isnil(L, 7)) {
|
jbe/bsw@0
|
1260 return luaL_error(L, "Missing 'that_key' entry in model reference.");
|
jbe/bsw@0
|
1261 }
|
jbe/bsw@0
|
1262 lua_gettable(L, 6); // 7
|
jbe/bsw@0
|
1263 } else {
|
jbe/bsw@0
|
1264 lua_pushnil(L);
|
jbe/bsw@0
|
1265 }
|
jbe/bsw@0
|
1266 return 1;
|
jbe/bsw@0
|
1267 }
|
jbe/bsw@0
|
1268 }
|
jbe/bsw@0
|
1269 lua_settop(L, 2);
|
jbe/bsw@0
|
1270 // try normal data field info:
|
jbe/bsw@0
|
1271 lua_getfield(L, 1, "_data"); // 3
|
jbe/bsw@0
|
1272 lua_pushvalue(L, 2); // 4
|
jbe/bsw@0
|
1273 lua_gettable(L, 3); // 4
|
jbe/bsw@0
|
1274 if (!lua_isnil(L, 4)) return 1;
|
jbe/bsw@0
|
1275 lua_settop(L, 2);
|
jbe/bsw@0
|
1276 // try cached referenced object (or cached NULL reference):
|
jbe/bsw@0
|
1277 lua_getfield(L, 1, "_ref"); // 3
|
jbe/bsw@0
|
1278 lua_pushvalue(L, 2); // 4
|
jbe/bsw@0
|
1279 lua_gettable(L, 3); // 4
|
jbe/bsw@0
|
1280 if (lua_isboolean(L, 4) && !lua_toboolean(L, 4)) {
|
jbe/bsw@0
|
1281 lua_pushnil(L);
|
jbe/bsw@0
|
1282 return 1;
|
jbe/bsw@0
|
1283 } else if (!lua_isnil(L, 4)) {
|
jbe/bsw@0
|
1284 return 1;
|
jbe/bsw@0
|
1285 }
|
jbe/bsw@0
|
1286 lua_settop(L, 2);
|
jbe/bsw@0
|
1287 // try to load a referenced object:
|
jbe/bsw@0
|
1288 lua_pushcfunction(L, mondelefant_class_get_reference); // 3
|
jbe/bsw@0
|
1289 lua_getfield(L, 1, "_class"); // 4
|
jbe/bsw@0
|
1290 lua_pushvalue(L, 2); // 5
|
jbe/bsw@0
|
1291 lua_call(L, 2, 1); // 3
|
jbe/bsw@0
|
1292 if (!lua_isnil(L, 3)) {
|
jbe/bsw@0
|
1293 lua_settop(L, 2);
|
jbe/bsw@0
|
1294 lua_getfield(L, 1, "load"); // 3
|
jbe/bsw@0
|
1295 lua_pushvalue(L, 1); // 4 (self)
|
jbe/bsw@0
|
1296 lua_pushvalue(L, 2); // 5
|
jbe/bsw@0
|
1297 lua_call(L, 2, 0);
|
jbe/bsw@0
|
1298 lua_settop(L, 2);
|
jbe/bsw@0
|
1299 lua_getfield(L, 1, "_ref"); // 3
|
jbe/bsw@0
|
1300 lua_pushvalue(L, 2); // 4
|
jbe/bsw@0
|
1301 lua_gettable(L, 3); // 4
|
jbe/bsw@0
|
1302 if (lua_isboolean(L, 4) && !lua_toboolean(L, 4)) lua_pushnil(L); // TODO: use special object instead of false
|
jbe/bsw@0
|
1303 return 1;
|
jbe/bsw@0
|
1304 }
|
jbe/bsw@0
|
1305 return 0;
|
jbe/bsw@0
|
1306 } else if (result_type && !strcmp(result_type, "list")) {
|
jbe/bsw@0
|
1307 lua_settop(L, 3);
|
jbe/bsw@0
|
1308 // try inherited list attributes or methods:
|
jbe/bsw@0
|
1309 while (lua_toboolean(L, 3)) {
|
jbe/bsw@0
|
1310 lua_getfield(L, 3, "list"); // 4
|
jbe/bsw@0
|
1311 lua_pushvalue(L, 2); // 5
|
jbe/bsw@0
|
1312 lua_gettable(L, 4); // 5
|
jbe/bsw@0
|
1313 if (!lua_isnil(L, 5)) return 1;
|
jbe/bsw@0
|
1314 lua_settop(L, 3);
|
jbe/bsw@0
|
1315 lua_pushliteral(L, "prototype"); // 4
|
jbe/bsw@0
|
1316 lua_rawget(L, 3); // 4
|
jbe/bsw@0
|
1317 lua_replace(L, 3);
|
jbe/bsw@0
|
1318 }
|
jbe/bsw@0
|
1319 }
|
jbe/bsw@0
|
1320 return 0;
|
jbe/bsw@0
|
1321 }
|
jbe/bsw@0
|
1322
|
jbe/bsw@0
|
1323 static int mondelefant_result_newindex(lua_State *L) {
|
jbe/bsw@0
|
1324 const char *result_type;
|
jbe/bsw@0
|
1325 lua_settop(L, 3);
|
jbe/bsw@0
|
1326 if (lua_type(L, 2) != LUA_TSTRING || lua_tostring(L, 2)[0] == '_') {
|
jbe/bsw@0
|
1327 lua_rawset(L, 1);
|
jbe/bsw@0
|
1328 return 1;
|
jbe/bsw@0
|
1329 }
|
jbe/bsw@0
|
1330 lua_getfield(L, 1, "_class"); // 4
|
jbe/bsw@0
|
1331 if (!lua_toboolean(L, 4)) {
|
jbe/bsw@0
|
1332 lua_settop(L, 3);
|
jbe/bsw@0
|
1333 lua_getfield(L,
|
jbe/bsw@0
|
1334 LUA_REGISTRYINDEX,
|
jbe/bsw@0
|
1335 MONDELEFANT_CLASS_PROTO_REGKEY
|
jbe/bsw@0
|
1336 ); // 4
|
jbe/bsw@0
|
1337 }
|
jbe/bsw@0
|
1338 lua_getfield(L, 1, "_type"); // 5
|
jbe/bsw@0
|
1339 result_type = lua_tostring(L, 5);
|
jbe/bsw@0
|
1340 if (result_type && !strcmp(result_type, "object")) {
|
jbe/bsw@0
|
1341 lua_settop(L, 4);
|
jbe/bsw@0
|
1342 // try object setter functions:
|
jbe/bsw@0
|
1343 while (lua_toboolean(L, 4)) {
|
jbe/bsw@0
|
1344 lua_getfield(L, 4, "object_set"); // 5
|
jbe/bsw@0
|
1345 lua_pushvalue(L, 2); // 6
|
jbe/bsw@0
|
1346 lua_gettable(L, 5); // 6
|
jbe/bsw@0
|
1347 if (lua_toboolean(L, 6)) {
|
jbe/bsw@0
|
1348 lua_pushvalue(L, 1); // 7
|
jbe/bsw@0
|
1349 lua_pushvalue(L, 3); // 8
|
jbe/bsw@0
|
1350 lua_call(L, 2, 0);
|
jbe/bsw@0
|
1351 return 0;
|
jbe/bsw@0
|
1352 }
|
jbe/bsw@0
|
1353 lua_settop(L, 4);
|
jbe/bsw@0
|
1354 lua_pushliteral(L, "prototype"); // 5
|
jbe/bsw@0
|
1355 lua_rawget(L, 4); // 5
|
jbe/bsw@0
|
1356 lua_replace(L, 4);
|
jbe/bsw@0
|
1357 }
|
jbe/bsw@0
|
1358 lua_settop(L, 3);
|
jbe/bsw@0
|
1359 // check, if a object reference is changed:
|
jbe/bsw@0
|
1360 lua_pushcfunction(L, mondelefant_class_get_reference); // 4
|
jbe/bsw@0
|
1361 lua_getfield(L, 1, "_class"); // 5
|
jbe/bsw@0
|
1362 lua_pushvalue(L, 2); // 6
|
jbe/bsw@0
|
1363 lua_call(L, 2, 1); // 4
|
jbe/bsw@0
|
1364 if (!lua_isnil(L, 4)) {
|
jbe/bsw@0
|
1365 // store object in _ref table (use false for nil): // TODO: use special object instead of false
|
jbe/bsw@0
|
1366 lua_getfield(L, 1, "_ref"); // 5
|
jbe/bsw@0
|
1367 lua_pushvalue(L, 2); // 6
|
jbe/bsw@0
|
1368 if (lua_isnil(L, 3)) lua_pushboolean(L, 0); // 7
|
jbe/bsw@0
|
1369 else lua_pushvalue(L, 3); // 7
|
jbe/bsw@0
|
1370 lua_settable(L, 5);
|
jbe/bsw@0
|
1371 lua_settop(L, 4);
|
jbe/bsw@0
|
1372 // delete referencing key from _data table:
|
jbe/bsw@0
|
1373 lua_getfield(L, 4, "this_key"); // 5
|
jbe/bsw@0
|
1374 if (lua_isnil(L, 5)) {
|
jbe/bsw@0
|
1375 return luaL_error(L, "Missing 'this_key' entry in model reference.");
|
jbe/bsw@0
|
1376 }
|
jbe/bsw@0
|
1377 lua_getfield(L, 1, "_data"); // 6
|
jbe/bsw@0
|
1378 lua_pushvalue(L, 5); // 7
|
jbe/bsw@0
|
1379 lua_pushnil(L); // 8
|
jbe/bsw@0
|
1380 lua_settable(L, 6);
|
jbe/bsw@0
|
1381 lua_settop(L, 5);
|
jbe/bsw@0
|
1382 lua_getfield(L, 1, "_dirty"); // 6
|
jbe/bsw@0
|
1383 lua_pushvalue(L, 5); // 7
|
jbe/bsw@0
|
1384 lua_pushboolean(L, 1); // 8
|
jbe/bsw@0
|
1385 lua_settable(L, 6);
|
jbe/bsw@0
|
1386 return 0;
|
jbe/bsw@0
|
1387 }
|
jbe/bsw@0
|
1388 lua_settop(L, 3);
|
jbe/bsw@0
|
1389 // store value in data field info:
|
jbe/bsw@0
|
1390 lua_getfield(L, 1, "_data"); // 4
|
jbe/bsw@0
|
1391 lua_pushvalue(L, 2); // 5
|
jbe/bsw@0
|
1392 lua_pushvalue(L, 3); // 6
|
jbe/bsw@0
|
1393 lua_settable(L, 4);
|
jbe/bsw@0
|
1394 lua_settop(L, 3);
|
jbe/bsw@0
|
1395 // mark field as dirty (needs to be UPDATEd on save):
|
jbe/bsw@0
|
1396 lua_getfield(L, 1, "_dirty"); // 4
|
jbe/bsw@0
|
1397 lua_pushvalue(L, 2); // 5
|
jbe/bsw@0
|
1398 lua_pushboolean(L, 1); // 6
|
jbe/bsw@0
|
1399 lua_settable(L, 4);
|
jbe/bsw@0
|
1400 lua_settop(L, 3);
|
jbe/bsw@0
|
1401 // reset reference cache, if neccessary:
|
jbe/bsw@0
|
1402 lua_pushcfunction(L,
|
jbe/bsw@0
|
1403 mondelefant_class_get_foreign_key_reference_name
|
jbe/bsw@0
|
1404 ); // 4
|
jbe/bsw@0
|
1405 lua_getfield(L, 1, "_class"); // 5
|
jbe/bsw@0
|
1406 lua_pushvalue(L, 2); // 6
|
jbe/bsw@0
|
1407 lua_call(L, 2, 1); // 4
|
jbe/bsw@0
|
1408 if (!lua_isnil(L, 4)) {
|
jbe/bsw@0
|
1409 lua_getfield(L, 1, "_ref"); // 5
|
jbe/bsw@0
|
1410 lua_pushvalue(L, 4); // 6
|
jbe/bsw@0
|
1411 lua_pushnil(L); // 7
|
jbe/bsw@0
|
1412 lua_settable(L, 5);
|
jbe/bsw@0
|
1413 }
|
jbe/bsw@0
|
1414 return 0;
|
jbe/bsw@0
|
1415 } else {
|
jbe/bsw@0
|
1416 lua_settop(L, 3);
|
jbe/bsw@0
|
1417 lua_rawset(L, 1);
|
jbe/bsw@0
|
1418 return 0;
|
jbe/bsw@0
|
1419 }
|
jbe/bsw@0
|
1420 return 0;
|
jbe/bsw@0
|
1421 }
|
jbe/bsw@0
|
1422
|
jbe/bsw@0
|
1423 static int mondelefant_class_index(lua_State *L) {
|
jbe/bsw@0
|
1424 lua_settop(L, 2);
|
jbe/bsw@0
|
1425 lua_pushliteral(L, "prototype"); // 3
|
jbe/bsw@0
|
1426 lua_rawget(L, 1); // 3
|
jbe/bsw@0
|
1427 lua_pushvalue(L, 2); // 4
|
jbe/bsw@0
|
1428 lua_gettable(L, 3); // 4
|
jbe/bsw@0
|
1429 return 1;
|
jbe/bsw@0
|
1430 }
|
jbe/bsw@0
|
1431
|
jbe/bsw@0
|
1432 static const struct luaL_Reg mondelefant_module_functions[] = {
|
jbe/bsw@0
|
1433 {"connect", mondelefant_connect},
|
jbe/bsw@0
|
1434 {"set_class", mondelefant_set_class},
|
jbe/bsw@0
|
1435 {"new_class", mondelefant_new_class},
|
jbe/bsw@0
|
1436 {NULL, NULL}
|
jbe/bsw@0
|
1437 };
|
jbe/bsw@0
|
1438
|
jbe/bsw@0
|
1439 static const struct luaL_Reg mondelefant_conn_mt_functions[] = {
|
jbe/bsw@0
|
1440 {"__gc", mondelefant_conn_free},
|
jbe/bsw@0
|
1441 {"__index", mondelefant_conn_index},
|
jbe/bsw@0
|
1442 {"__newindex", mondelefant_conn_newindex},
|
jbe/bsw@0
|
1443 {NULL, NULL}
|
jbe/bsw@0
|
1444 };
|
jbe/bsw@0
|
1445
|
jbe/bsw@0
|
1446 static const struct luaL_Reg mondelefant_conn_methods[] = {
|
jbe/bsw@0
|
1447 {"close", mondelefant_conn_close},
|
jbe/bsw@0
|
1448 {"is_ok", mondelefant_conn_is_ok},
|
jbe/bsw@0
|
1449 {"get_transaction_status", mondelefant_conn_get_transaction_status},
|
jbe/bsw@0
|
1450 {"create_list", mondelefant_conn_create_list},
|
jbe/bsw@0
|
1451 {"create_object", mondelefant_conn_create_object},
|
jbe/bsw@0
|
1452 {"quote_string", mondelefant_conn_quote_string},
|
jbe/bsw@0
|
1453 {"quote_binary", mondelefant_conn_quote_binary},
|
jbe/bsw@0
|
1454 {"assemble_command", mondelefant_conn_assemble_command},
|
jbe/bsw@0
|
1455 {"try_query", mondelefant_conn_try_query},
|
jbe/bsw@0
|
1456 {"query", mondelefant_conn_query},
|
jbe/bsw@0
|
1457 {NULL, NULL}
|
jbe/bsw@0
|
1458 };
|
jbe/bsw@0
|
1459
|
jbe/bsw@0
|
1460 static const struct luaL_Reg mondelefant_errorobject_mt_functions[] = {
|
jbe/bsw@0
|
1461 {NULL, NULL}
|
jbe/bsw@0
|
1462 };
|
jbe/bsw@0
|
1463
|
jbe/bsw@0
|
1464 static const struct luaL_Reg mondelefant_errorobject_methods[] = {
|
jbe/bsw@0
|
1465 {"escalate", mondelefant_errorobject_escalate},
|
jbe/bsw@0
|
1466 {"is_kind_of", mondelefant_errorobject_is_kind_of},
|
jbe/bsw@0
|
1467 {NULL, NULL}
|
jbe/bsw@0
|
1468 };
|
jbe/bsw@0
|
1469
|
jbe/bsw@0
|
1470 static const struct luaL_Reg mondelefant_result_mt_functions[] = {
|
jbe/bsw@0
|
1471 {"__index", mondelefant_result_index},
|
jbe/bsw@0
|
1472 {"__newindex", mondelefant_result_newindex},
|
jbe/bsw@0
|
1473 {NULL, NULL}
|
jbe/bsw@0
|
1474 };
|
jbe/bsw@0
|
1475
|
jbe/bsw@0
|
1476 static const struct luaL_Reg mondelefant_class_mt_functions[] = {
|
jbe/bsw@0
|
1477 {"__index", mondelefant_class_index},
|
jbe/bsw@0
|
1478 {NULL, NULL}
|
jbe/bsw@0
|
1479 };
|
jbe/bsw@0
|
1480
|
jbe/bsw@0
|
1481 static const struct luaL_Reg mondelefant_class_methods[] = {
|
jbe/bsw@0
|
1482 {"get_reference", mondelefant_class_get_reference},
|
jbe/bsw@0
|
1483 {"iterate_over_references", mondelefant_class_iterate_over_references},
|
jbe/bsw@0
|
1484 {"get_foreign_key_reference_name",
|
jbe/bsw@0
|
1485 mondelefant_class_get_foreign_key_reference_name},
|
jbe/bsw@0
|
1486 {NULL, NULL}
|
jbe/bsw@0
|
1487 };
|
jbe/bsw@0
|
1488
|
jbe/bsw@0
|
1489 static const struct luaL_Reg mondelefant_object_methods[] = {
|
jbe/bsw@0
|
1490 {NULL, NULL}
|
jbe/bsw@0
|
1491 };
|
jbe/bsw@0
|
1492
|
jbe/bsw@0
|
1493 static const struct luaL_Reg mondelefant_list_methods[] = {
|
jbe/bsw@0
|
1494 {NULL, NULL}
|
jbe/bsw@0
|
1495 };
|
jbe/bsw@0
|
1496
|
jbe/bsw@0
|
1497 int luaopen_mondelefant_native(lua_State *L) {
|
jbe/bsw@0
|
1498 lua_settop(L, 0);
|
jbe/bsw@0
|
1499 lua_newtable(L); // module at stack position 1
|
jbe/bsw@0
|
1500 luaL_register(L, NULL, mondelefant_module_functions);
|
jbe/bsw@0
|
1501
|
jbe/bsw@0
|
1502 lua_pushvalue(L, 1); // 2
|
jbe/bsw@0
|
1503 lua_setfield(L, LUA_REGISTRYINDEX, MONDELEFANT_MODULE_REGKEY);
|
jbe/bsw@0
|
1504
|
jbe/bsw@0
|
1505 lua_newtable(L); // 2
|
jbe/bsw@0
|
1506 // NOTE: only PostgreSQL is supported yet:
|
jbe/bsw@0
|
1507 luaL_register(L, NULL, mondelefant_conn_methods);
|
jbe/bsw@0
|
1508 lua_setfield(L, 1, "postgresql_connection_prototype");
|
jbe/bsw@0
|
1509 lua_newtable(L); // 2
|
jbe/bsw@0
|
1510 lua_setfield(L, 1, "connection_prototype");
|
jbe/bsw@0
|
1511
|
jbe/bsw@0
|
1512 luaL_newmetatable(L, MONDELEFANT_CONN_MT_REGKEY); // 2
|
jbe/bsw@0
|
1513 luaL_register(L, NULL, mondelefant_conn_mt_functions);
|
jbe/bsw@0
|
1514 lua_settop(L, 1);
|
jbe/bsw@0
|
1515 luaL_newmetatable(L, MONDELEFANT_RESULT_MT_REGKEY); // 2
|
jbe/bsw@0
|
1516 luaL_register(L, NULL, mondelefant_result_mt_functions);
|
jbe/bsw@0
|
1517 lua_setfield(L, 1, "result_metatable");
|
jbe/bsw@0
|
1518 luaL_newmetatable(L, MONDELEFANT_CLASS_MT_REGKEY); // 2
|
jbe/bsw@0
|
1519 luaL_register(L, NULL, mondelefant_class_mt_functions);
|
jbe/bsw@0
|
1520 lua_setfield(L, 1, "class_metatable");
|
jbe/bsw@0
|
1521
|
jbe/bsw@0
|
1522 lua_newtable(L); // 2
|
jbe/bsw@0
|
1523 lua_newtable(L); // 3
|
jbe/bsw@0
|
1524 luaL_register(L, NULL, mondelefant_object_methods);
|
jbe/bsw@0
|
1525 lua_setfield(L, 2, "object");
|
jbe/bsw@0
|
1526 lua_newtable(L); // 3
|
jbe/bsw@0
|
1527 lua_setfield(L, 2, "object_get");
|
jbe/bsw@0
|
1528 lua_newtable(L); // 3
|
jbe/bsw@0
|
1529 lua_setfield(L, 2, "object_set");
|
jbe/bsw@0
|
1530 lua_newtable(L); // 3
|
jbe/bsw@0
|
1531 luaL_register(L, NULL, mondelefant_list_methods);
|
jbe/bsw@0
|
1532 lua_setfield(L, 2, "list");
|
jbe/bsw@0
|
1533 lua_newtable(L); // 3
|
jbe/bsw@0
|
1534 lua_setfield(L, 2, "references");
|
jbe/bsw@0
|
1535 lua_newtable(L); // 3
|
jbe/bsw@0
|
1536 lua_setfield(L, 2, "foreign_keys");
|
jbe/bsw@0
|
1537 lua_pushvalue(L, 2); // 3
|
jbe/bsw@0
|
1538 lua_setfield(L, LUA_REGISTRYINDEX, MONDELEFANT_CLASS_PROTO_REGKEY);
|
jbe/bsw@0
|
1539 lua_setfield(L, 1, "class_prototype");
|
jbe/bsw@0
|
1540
|
jbe/bsw@0
|
1541 lua_newtable(L); // 2
|
jbe/bsw@0
|
1542 lua_pushliteral(L, "k"); // 3
|
jbe/bsw@0
|
1543 lua_setfield(L, 2, "__mode");
|
jbe/bsw@0
|
1544 lua_newtable(L); // 3
|
jbe/bsw@0
|
1545 lua_pushvalue(L, 2); // 4
|
jbe/bsw@0
|
1546 lua_setmetatable(L, 3);
|
jbe/bsw@0
|
1547 lua_setfield(L, LUA_REGISTRYINDEX, MONDELEFANT_CONN_DATA_REGKEY);
|
jbe/bsw@0
|
1548 lua_settop(L, 1);
|
jbe/bsw@0
|
1549
|
jbe/bsw@0
|
1550 luaL_newmetatable(L, MONDELEFANT_ERROROBJECT_MT_REGKEY); // 2
|
jbe/bsw@0
|
1551 luaL_register(L, NULL, mondelefant_errorobject_mt_functions);
|
jbe/bsw@0
|
1552 lua_newtable(L); // 3
|
jbe/bsw@0
|
1553 luaL_register(L, NULL, mondelefant_errorobject_methods);
|
jbe/bsw@0
|
1554 lua_setfield(L, 2, "__index");
|
jbe/bsw@0
|
1555 lua_setfield(L, 1, "errorobject_metatable");
|
jbe/bsw@0
|
1556
|
jbe/bsw@0
|
1557 return 1;
|
jbe/bsw@0
|
1558 }
|