liquid_feedback_core

annotate lf_update.c @ 14:ac7836ac00d9

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Version beta15

Bugfix: Revoked initiatives will never be admitted

Possibility to recommend another initiative to support when revoking an initiative

Allow "initiator"."accepted" to be NULL (NULL means "no answer yet", while FALSE means "rejected")
author jbe
date Sun Jan 10 12:00:00 2010 +0100 (2010-01-10)
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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