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|
/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2004 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.0 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_0.txt. |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: George Schlossnagle <george@omniti.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "pdo/php_pdo.h"
#include "pdo/php_pdo_driver.h"
#include "php_pdo_mysql.h"
#include "php_pdo_mysql_int.h"
static int pdo_mysql_stmt_dtor(pdo_stmt_t *stmt TSRMLS_DC)
{
pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
int i;
if (S->result) {
/* free the resource */
mysql_free_result(S->result);
S->result = NULL;
}
if(S->cols) {
efree(S->cols);
S->cols = NULL;
}
efree(S);
return 1;
}
static int pdo_mysql_stmt_execute(pdo_stmt_t *stmt TSRMLS_DC)
{
pdo_dbh_t *dbh = stmt->dbh;
pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
pdo_mysql_db_handle *H = S->H;
if (stmt->executed) {
/* ensure that we free any previous unfetched results */
if(S->result) {
mysql_free_result(S->result);
S->result = NULL;
}
}
if (mysql_real_query(H->server, stmt->active_query_string, stmt->active_query_stringlen) != 0) {
pdo_mysql_error_stmt(stmt);
return 0;
}
if ((S->result = mysql_use_result(H->server)) == NULL) {
pdo_mysql_error_stmt(stmt);
return 0;
}
if (!stmt->executed) {
stmt->column_count = (int) mysql_num_fields(S->result);
S->cols = ecalloc(stmt->column_count, sizeof(pdo_mysql_column));
}
return 1;
}
static int pdo_mysql_stmt_param_hook(pdo_stmt_t *stmt, struct pdo_bound_param_data *param,
enum pdo_param_event event_type TSRMLS_DC)
{
return 1;
}
static int pdo_mysql_stmt_fetch(pdo_stmt_t *stmt TSRMLS_DC)
{
pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
if (!S->result) {
return 0;
}
if((S->current_data = mysql_fetch_row(S->result)) == NULL) {
/* there seems to be no way of distinguishing 'no data' from 'error' */
pdo_mysql_error_stmt(stmt);
return 0;
}
S->current_lengths = mysql_fetch_lengths(S->result);
return 1;
}
static int pdo_mysql_stmt_describe(pdo_stmt_t *stmt, int colno TSRMLS_DC)
{
pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
MYSQL_RES *R = S->result;
MYSQL_FIELD *F;
struct pdo_column_data *cols = stmt->columns;
unsigned int num_fields, i;
if (!S->result) {
return 0;
}
/* fetch all on demand, this seems easiest
** if we've been here before bail out
*/
if(cols[0].name) {
return 1;
}
num_fields = mysql_num_fields(R);
F = mysql_fetch_fields(R);
for(i=0; i < num_fields; i++) {
int namelen;
namelen = strlen(F[i].name);
cols[i].precision = F[i].decimals;
cols[i].maxlen = F[i].length;
cols[i].namelen = namelen;
/* FIXME where does this get freed? */
cols[i].name = estrndup(F[i].name, namelen + 1);
cols[i].param_type = PDO_PARAM_STR;
}
return 1;
}
static int pdo_mysql_stmt_get_col(pdo_stmt_t *stmt, int colno, char **ptr, unsigned long *len TSRMLS_DC)
{
pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
if(S->current_data == NULL || !S->result) {
return 0;
}
if(colno >= mysql_num_fields(S->result)) {
/* error invalid column */
pdo_mysql_error_stmt(stmt);
return 0;
}
*ptr = S->current_data[colno];
*len = S->current_lengths[colno];
return 1;
}
struct pdo_stmt_methods mysql_stmt_methods = {
pdo_mysql_stmt_dtor,
pdo_mysql_stmt_execute,
pdo_mysql_stmt_fetch,
pdo_mysql_stmt_describe,
pdo_mysql_stmt_get_col,
pdo_mysql_stmt_param_hook
};
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/
|
