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- <?php
- require_once 'common.php';
- class DB_ifx extends DB_common
- {
-
-
- public $phptype = 'ifx';
-
- public $dbsyntax = 'ifx';
-
- public $features = array(
- 'limit' => 'emulate',
- 'new_link' => false,
- 'numrows' => 'emulate',
- 'pconnect' => true,
- 'prepare' => false,
- 'ssl' => false,
- 'transactions' => true,
- );
-
- public $errorcode_map = array(
- '-201' => DB_ERROR_SYNTAX,
- '-206' => DB_ERROR_NOSUCHTABLE,
- '-217' => DB_ERROR_NOSUCHFIELD,
- '-236' => DB_ERROR_VALUE_COUNT_ON_ROW,
- '-239' => DB_ERROR_CONSTRAINT,
- '-253' => DB_ERROR_SYNTAX,
- '-268' => DB_ERROR_CONSTRAINT,
- '-292' => DB_ERROR_CONSTRAINT_NOT_NULL,
- '-310' => DB_ERROR_ALREADY_EXISTS,
- '-316' => DB_ERROR_ALREADY_EXISTS,
- '-319' => DB_ERROR_NOT_FOUND,
- '-329' => DB_ERROR_NODBSELECTED,
- '-346' => DB_ERROR_CONSTRAINT,
- '-386' => DB_ERROR_CONSTRAINT_NOT_NULL,
- '-391' => DB_ERROR_CONSTRAINT_NOT_NULL,
- '-554' => DB_ERROR_SYNTAX,
- '-691' => DB_ERROR_CONSTRAINT,
- '-692' => DB_ERROR_CONSTRAINT,
- '-703' => DB_ERROR_CONSTRAINT_NOT_NULL,
- '-1202' => DB_ERROR_DIVZERO,
- '-1204' => DB_ERROR_INVALID_DATE,
- '-1205' => DB_ERROR_INVALID_DATE,
- '-1206' => DB_ERROR_INVALID_DATE,
- '-1209' => DB_ERROR_INVALID_DATE,
- '-1210' => DB_ERROR_INVALID_DATE,
- '-1212' => DB_ERROR_INVALID_DATE,
- '-1213' => DB_ERROR_INVALID_NUMBER,
- );
-
- public $connection;
-
- public $dsn = array();
-
- public $autocommit = true;
-
- public $transaction_opcount = 0;
-
- public $affected = 0;
-
-
-
- public function __construct()
- {
- parent::__construct();
- }
-
-
-
- public function connect($dsn, $persistent = false)
- {
- if (!PEAR::loadExtension('informix') &&
- !PEAR::loadExtension('Informix')) {
- return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
- }
- $this->dsn = $dsn;
- if ($dsn['dbsyntax']) {
- $this->dbsyntax = $dsn['dbsyntax'];
- }
- $dbhost = $dsn['hostspec'] ? '@' . $dsn['hostspec'] : '';
- $dbname = $dsn['database'] ? $dsn['database'] . $dbhost : '';
- $user = $dsn['username'] ? $dsn['username'] : '';
- $pw = $dsn['password'] ? $dsn['password'] : '';
- $connect_function = $persistent ? 'ifx_pconnect' : 'ifx_connect';
- $this->connection = @$connect_function($dbname, $user, $pw);
- if (!is_resource($this->connection)) {
- return $this->ifxRaiseError(DB_ERROR_CONNECT_FAILED);
- }
- return DB_OK;
- }
-
-
-
- public function ifxRaiseError($errno = null)
- {
- if ($errno === null) {
- $errno = $this->errorCode(ifx_error());
- }
- return $this->raiseError(
- $errno,
- null,
- null,
- null,
- $this->errorNative()
- );
- }
-
-
-
- public function errorCode($nativecode)
- {
- if (preg_match('/SQLCODE=(.*)]/', $nativecode, $match)) {
- $code = $match[1];
- if (isset($this->errorcode_map[$code])) {
- return $this->errorcode_map[$code];
- }
- }
- return DB_ERROR;
- }
-
-
-
- public function errorNative()
- {
- return @ifx_error() . ' ' . @ifx_errormsg();
- }
-
-
-
- public function disconnect()
- {
- $ret = @ifx_close($this->connection);
- $this->connection = null;
- return $ret;
- }
-
-
-
- public function simpleQuery($query)
- {
- $ismanip = $this->_checkManip($query);
- $this->last_query = $query;
- $this->affected = null;
- if (preg_match('/(SELECT|EXECUTE)/i', $query)) {
-
-
- $result = @ifx_query($query, $this->connection, IFX_SCROLL);
- } else {
- if (!$this->autocommit && $ismanip) {
- if ($this->transaction_opcount == 0) {
- $result = @ifx_query('BEGIN WORK', $this->connection);
- if (!$result) {
- return $this->ifxRaiseError();
- }
- }
- $this->transaction_opcount++;
- }
- $result = @ifx_query($query, $this->connection);
- }
- if (!$result) {
- return $this->ifxRaiseError();
- }
- $this->affected = @ifx_affected_rows($result);
-
-
- if (preg_match('/(SELECT|EXECUTE)/i', $query)) {
- return $result;
- }
-
-
-
- @ifx_free_result($result);
- return DB_OK;
- }
-
-
-
- public function nextResult($result)
- {
- return false;
- }
-
-
-
- public function affectedRows()
- {
- if ($this->_last_query_manip) {
- return $this->affected;
- } else {
- return 0;
- }
- }
-
-
-
- public function fetchInto($result, &$arr, $fetchmode, $rownum = null)
- {
- if (($rownum !== null) && ($rownum < 0)) {
- return null;
- }
- if ($rownum === null) {
-
- $rownum = 'NEXT';
- } else {
-
- $rownum++;
- }
- if (!$arr = @ifx_fetch_row($result, $rownum)) {
- return null;
- }
- if ($fetchmode !== DB_FETCHMODE_ASSOC) {
- $i = 0;
- $order = array();
- foreach ($arr as $val) {
- $order[$i++] = $val;
- }
- $arr = $order;
- } elseif ($fetchmode == DB_FETCHMODE_ASSOC &&
- $this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
- $arr = array_change_key_case($arr, CASE_LOWER);
- }
- if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
- $this->_rtrimArrayValues($arr);
- }
- if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
- $this->_convertNullArrayValuesToEmpty($arr);
- }
- return DB_OK;
- }
-
-
-
- public function numCols($result)
- {
- if (!$cols = @ifx_num_fields($result)) {
- return $this->ifxRaiseError();
- }
- return $cols;
- }
-
-
-
- public function freeResult($result)
- {
- return is_resource($result) ? ifx_free_result($result) : false;
- }
-
-
-
- public function autoCommit($onoff = true)
- {
-
-
- $this->autocommit = $onoff ? true : false;
- return DB_OK;
- }
-
-
-
- public function commit()
- {
- if ($this->transaction_opcount > 0) {
- $result = @ifx_query('COMMIT WORK', $this->connection);
- $this->transaction_opcount = 0;
- if (!$result) {
- return $this->ifxRaiseError();
- }
- }
- return DB_OK;
- }
-
-
-
- public function rollback()
- {
- if ($this->transaction_opcount > 0) {
- $result = @ifx_query('ROLLBACK WORK', $this->connection);
- $this->transaction_opcount = 0;
- if (!$result) {
- return $this->ifxRaiseError();
- }
- }
- return DB_OK;
- }
-
-
-
- public function tableInfo($result, $mode = null)
- {
- if (is_string($result)) {
-
- $id = @ifx_query(
- "SELECT * FROM $result WHERE 1=0",
- $this->connection
- );
- $got_string = true;
- } elseif (isset($result->result)) {
-
- $id = $result->result;
- $got_string = false;
- } else {
-
- $id = $result;
- $got_string = false;
- }
- if (!is_resource($id)) {
- return $this->ifxRaiseError(DB_ERROR_NEED_MORE_DATA);
- }
- $flds = @ifx_fieldproperties($id);
- $count = @ifx_num_fields($id);
- if (count($flds) != $count) {
- return $this->raiseError("can't distinguish duplicate field names");
- }
- if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
- $case_func = 'strtolower';
- } else {
- $case_func = 'strval';
- }
- $i = 0;
- $res = array();
- if ($mode) {
- $res['num_fields'] = $count;
- }
- foreach ($flds as $key => $value) {
- $props = explode(';', $value);
- $res[$i] = array(
- 'table' => $got_string ? $case_func($result) : '',
- 'name' => $case_func($key),
- 'type' => $props[0],
- 'len' => $props[1],
- 'flags' => $props[4] == 'N' ? 'not_null' : '',
- );
- if ($mode & DB_TABLEINFO_ORDER) {
- $res['order'][$res[$i]['name']] = $i;
- }
- if ($mode & DB_TABLEINFO_ORDERTABLE) {
- $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
- }
- $i++;
- }
-
- if ($got_string) {
- @ifx_free_result($id);
- }
- return $res;
- }
-
-
-
- public function getSpecialQuery($type)
- {
- switch ($type) {
- case 'tables':
- return 'SELECT tabname FROM systables WHERE tabid >= 100';
- default:
- return null;
- }
- }
-
- }
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