liquid_feedback_core

annotate lf_update.c @ 15:6f6ec6b5eee9

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Version beta16

Critical bug related to revoked initiatives fixed, which caused lf_update or check_everything() to exit with an error instead of performing the neccessary tasks
author jbe
date Wed Jan 13 12:00:00 2010 +0100 (2010-01-13)
parents 6133c0a62378
children bdccc56fb705
rev   line source
jbe@0 1 #include <stdlib.h>
jbe@0 2 #include <stdio.h>
jbe@0 3 #include <string.h>
jbe@0 4 #include <libpq-fe.h>
jbe@0 5
jbe@0 6 int main(int argc, char **argv) {
jbe@1 7
jbe@1 8 // variable declarations:
jbe@0 9 int i, count;
jbe@0 10 char *conninfo;
jbe@0 11 PGconn *db;
jbe@0 12 PGresult *list;
jbe@0 13 PGresult *status;
jbe@1 14
jbe@1 15 // parse command line:
jbe@0 16 if (argc == 0) return 1;
jbe@0 17 if (argc == 1 || !strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
jbe@0 18 FILE *out;
jbe@0 19 out = argc == 1 ? stderr : stdout;
jbe@0 20 fprintf(stdout, "\n");
jbe@0 21 fprintf(stdout, "Usage: %s <conninfo>\n", argv[0]);
jbe@0 22 fprintf(stdout, "\n");
jbe@0 23 fprintf(stdout, "<conninfo> is specified by PostgreSQL's libpq,\n");
jbe@0 24 fprintf(stdout, "see http://www.postgresql.org/docs/8.4/static/libpq-connect.html\n");
jbe@0 25 fprintf(stdout, "\n");
jbe@0 26 fprintf(stdout, "Example: %s dbname=liquid_feedback\n", argv[0]);
jbe@0 27 fprintf(stdout, "\n");
jbe@0 28 return argc == 1 ? 1 : 0;
jbe@0 29 }
jbe@0 30 {
jbe@0 31 size_t len = 0;
jbe@0 32 for (i=1; i<argc; i++) len += strlen(argv[i]) + 1;
jbe@0 33 conninfo = malloc(len * sizeof(char));
jbe@0 34 if (!conninfo) {
jbe@0 35 fprintf(stderr, "Error: Could not allocate memory for conninfo string\n");
jbe@0 36 return 1;
jbe@0 37 }
jbe@0 38 conninfo[0] = 0;
jbe@0 39 for (i=1; i<argc; i++) {
jbe@0 40 if (i>1) strcat(conninfo, " ");
jbe@0 41 strcat(conninfo, argv[i]);
jbe@0 42 }
jbe@0 43 }
jbe@1 44
jbe@1 45 // connect to database:
jbe@0 46 db = PQconnectdb(conninfo);
jbe@0 47 if (!db) {
jbe@0 48 fprintf(stderr, "Error: Could not create database handle\n");
jbe@0 49 return 1;
jbe@0 50 }
jbe@0 51 if (PQstatus(db) != CONNECTION_OK) {
jbe@0 52 fprintf(stderr, "Could not open connection:\n%s", PQerrorMessage(db));
jbe@0 53 return 1;
jbe@0 54 }
jbe@1 55
jbe@1 56 // delete expired sessions:
jbe@1 57 status = PQexec(db, "DELETE FROM \"expired_session\"");
jbe@1 58 if (!status) {
jbe@1 59 fprintf(stderr, "Error in pqlib while sending SQL command deleting expired sessions\n");
jbe@1 60 return 1;
jbe@1 61 }
jbe@1 62 if (
jbe@1 63 PQresultStatus(status) != PGRES_COMMAND_OK &&
jbe@1 64 PQresultStatus(status) != PGRES_TUPLES_OK
jbe@1 65 ) {
jbe@1 66 fprintf(stderr, "Error while executing SQL command deleting expired sessions:\n%s", PQresultErrorMessage(status));
jbe@1 67 return 1;
jbe@1 68 }
jbe@1 69
jbe@4 70 // calculate member counts:
jbe@4 71 status = PQexec(db, "SELECT \"calculate_member_counts\"()");
jbe@4 72 if (!status) {
jbe@4 73 fprintf(stderr, "Error in pqlib while sending SQL command calculating member counts\n");
jbe@4 74 return 1;
jbe@4 75 }
jbe@4 76 if (
jbe@4 77 PQresultStatus(status) != PGRES_COMMAND_OK &&
jbe@4 78 PQresultStatus(status) != PGRES_TUPLES_OK
jbe@4 79 ) {
jbe@4 80 fprintf(stderr, "Error while executing SQL command calculating member counts:\n%s", PQresultErrorMessage(status));
jbe@4 81 return 1;
jbe@4 82 }
jbe@4 83
jbe@1 84 // update open issues:
jbe@0 85 list = PQexec(db, "SELECT \"id\" FROM \"open_issue\"");
jbe@0 86 if (!list) {
jbe@0 87 fprintf(stderr, "Error in pqlib while sending SQL command selecting open issues\n");
jbe@0 88 return 1;
jbe@0 89 }
jbe@0 90 if (PQresultStatus(list) != PGRES_TUPLES_OK) {
jbe@0 91 fprintf(stderr, "Error while executing SQL command selecting open issues:\n%s", PQresultErrorMessage(list));
jbe@0 92 return 1;
jbe@0 93 }
jbe@0 94 count = PQntuples(list);
jbe@0 95 for (i=0; i<count; i++) {
jbe@0 96 const char *params[1];
jbe@0 97 params[0] = PQgetvalue(list, i, 0);
jbe@0 98 status = PQexecParams(
jbe@0 99 db, "SELECT \"check_issue\"($1)", 1, NULL, params, NULL, NULL, 0
jbe@0 100 );
jbe@1 101 if (!status) {
jbe@1 102 fprintf(stderr, "Error in pqlib while sending SQL command to call function \"check_issue\"(...):\n");
jbe@1 103 return 1;
jbe@1 104 }
jbe@0 105 if (
jbe@0 106 PQresultStatus(status) != PGRES_COMMAND_OK &&
jbe@0 107 PQresultStatus(status) != PGRES_TUPLES_OK
jbe@0 108 ) {
jbe@0 109 fprintf(stderr, "Error while calling SQL function \"check_issue\"(...):\n%s", PQresultErrorMessage(status));
jbe@0 110 return 1;
jbe@0 111 }
jbe@0 112 PQclear(status);
jbe@0 113 }
jbe@0 114 PQclear(list);
jbe@1 115
jbe@1 116 // calculate ranks after voting is finished:
jbe@1 117 // (NOTE: This is a seperate process to avoid long transactions with locking)
jbe@0 118 list = PQexec(db, "SELECT \"id\" FROM \"issue_with_ranks_missing\"");
jbe@0 119 if (!list) {
jbe@0 120 fprintf(stderr, "Error in pqlib while sending SQL command selecting issues where ranks are missing\n");
jbe@0 121 return 1;
jbe@0 122 }
jbe@0 123 if (PQresultStatus(list) != PGRES_TUPLES_OK) {
jbe@0 124 fprintf(stderr, "Error while executing SQL command selecting issues where ranks are missing:\n%s", PQresultErrorMessage(list));
jbe@0 125 return 1;
jbe@0 126 }
jbe@0 127 count = PQntuples(list);
jbe@0 128 for (i=0; i<count; i++) {
jbe@0 129 const char *params[1];
jbe@0 130 params[0] = PQgetvalue(list, i, 0);
jbe@0 131 status = PQexecParams(
jbe@0 132 db, "SELECT \"calculate_ranks\"($1)", 1, NULL, params, NULL, NULL, 0
jbe@0 133 );
jbe@1 134 if (!status) {
jbe@1 135 fprintf(stderr, "Error in pqlib while sending SQL command to call function \"calculate_ranks\"(...):\n");
jbe@1 136 return 1;
jbe@1 137 }
jbe@0 138 if (
jbe@0 139 PQresultStatus(status) != PGRES_COMMAND_OK &&
jbe@0 140 PQresultStatus(status) != PGRES_TUPLES_OK
jbe@0 141 ) {
jbe@0 142 fprintf(stderr, "Error while calling SQL function \"calculate_ranks\"(...):\n%s", PQresultErrorMessage(status));
jbe@0 143 return 1;
jbe@0 144 }
jbe@0 145 PQclear(status);
jbe@0 146 }
jbe@0 147 PQclear(list);
jbe@1 148
jbe@1 149 // cleanup and exit
jbe@0 150 PQfinish(db);
jbe@0 151 return 0;
jbe@1 152
jbe@0 153 }

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