mirror of https://git.kore.io/kore.git
94 lines
2.5 KiB
C
94 lines
2.5 KiB
C
/*
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* Copyright (c) 2015 Joris Vink <joris@coders.se>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* This example demonstrates how to use synchronous PGSQL queries
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* with Kore. For an asynchronous example see pgsql/ under examples/.
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*
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* This example does the same as the asynchronous one, select all entries
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* from a table called "coders".
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*/
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#include <kore/kore.h>
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#include <kore/http.h>
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#include <kore/pgsql.h>
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int init(int);
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int page(struct http_request *);
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/* Called when our module is loaded (see config) */
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int
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init(int state)
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{
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/* Register our database. */
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kore_pgsql_register("db", "host=/tmp dbname=test");
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return (KORE_RESULT_OK);
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}
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/* Page handler entry point (see config) */
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int
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page(struct http_request *req)
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{
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struct kore_pgsql sql;
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char *name;
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int rows, i;
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req->status = HTTP_STATUS_INTERNAL_ERROR;
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kore_pgsql_init(&sql);
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/*
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* Initialise our kore_pgsql data structure with the database name
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* we want to connect to (note that we registered this earlier with
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* kore_pgsql_register()). We also say we will perform a synchronous
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* query (KORE_PGSQL_SYNC).
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*/
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if (!kore_pgsql_setup(&sql, "db", KORE_PGSQL_SYNC)) {
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kore_pgsql_logerror(&sql);
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goto out;
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}
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/*
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* Now we can fire off the query, once it returns we either have
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* a result on which we can operate or an error occurred.
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*/
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if (!kore_pgsql_query(&sql, "SELECT * FROM coders")) {
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kore_pgsql_logerror(&sql);
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goto out;
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}
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/*
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* Iterate over the result and dump it to somewhere.
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*/
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rows = kore_pgsql_ntuples(&sql);
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for (i = 0; i < rows; i++) {
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name = kore_pgsql_getvalue(&sql, i, 0);
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kore_log(LOG_NOTICE, "name: '%s'", name);
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}
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/* All good. */
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req->status = HTTP_STATUS_OK;
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out:
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http_response(req, req->status, NULL, 0);
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/* Don't forget to cleanup the kore_pgsql data structure. */
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kore_pgsql_cleanup(&sql);
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return (KORE_RESULT_OK);
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}
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