1843 lines
63 KiB
PHP
1843 lines
63 KiB
PHP
<?php
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// +----------------------------------------------------------------------+
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// | PHP versions 4 and 5 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1998-2007 Manuel Lemos, Tomas V.V.Cox, |
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// | Stig. S. Bakken, Lukas Smith |
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// | All rights reserved. |
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// +----------------------------------------------------------------------+
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// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
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// | API as well as database abstraction for PHP applications. |
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// | This LICENSE is in the BSD license style. |
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// | |
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// | Redistribution and use in source and binary forms, with or without |
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// | modification, are permitted provided that the following conditions |
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// | are met: |
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// | |
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// | Redistributions of source code must retain the above copyright |
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// | notice, this list of conditions and the following disclaimer. |
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// | |
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// | Redistributions in binary form must reproduce the above copyright |
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// | notice, this list of conditions and the following disclaimer in the |
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// | documentation and/or other materials provided with the distribution. |
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// | |
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// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
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// | Lukas Smith nor the names of his contributors may be used to endorse |
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// | or promote products derived from this software without specific prior|
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// | written permission. |
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// | |
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// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
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// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
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// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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// | POSSIBILITY OF SUCH DAMAGE. |
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// +----------------------------------------------------------------------+
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// | Author: Lukas Smith <smith@pooteeweet.org> |
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// +----------------------------------------------------------------------+
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//
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// $Id$
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require_once 'MDB2/LOB.php';
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/**
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* @package MDB2
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* @category Database
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* @author Lukas Smith <smith@pooteeweet.org>
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*/
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/**
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* MDB2_Driver_Common: Base class that is extended by each MDB2 driver
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*
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* To load this module in the MDB2 object:
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* $mdb->loadModule('Datatype');
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*
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* @package MDB2
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* @category Database
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* @author Lukas Smith <smith@pooteeweet.org>
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*/
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class MDB2_Driver_Datatype_Common extends MDB2_Module_Common
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{
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var $valid_default_values = array(
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'text' => '',
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'boolean' => true,
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'integer' => 0,
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'decimal' => 0.0,
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'float' => 0.0,
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'timestamp' => '1970-01-01 00:00:00',
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'time' => '00:00:00',
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'date' => '1970-01-01',
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'clob' => '',
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'blob' => '',
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);
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/**
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* contains all LOB objects created with this MDB2 instance
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* @var array
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* @access protected
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*/
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var $lobs = array();
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// }}}
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// {{{ getValidTypes()
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/**
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* Get the list of valid types
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*
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* This function returns an array of valid types as keys with the values
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* being possible default values for all native datatypes and mapped types
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* for custom datatypes.
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*
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* @return mixed array on success, a MDB2 error on failure
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* @access public
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*/
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function getValidTypes()
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{
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$types = $this->valid_default_values;
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$db = $this->getDBInstance();
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if (MDB2::isError($db)) {
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return $db;
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}
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if (!empty($db->options['datatype_map'])) {
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foreach ($db->options['datatype_map'] as $type => $mapped_type) {
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if (array_key_exists($mapped_type, $types)) {
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$types[$type] = $types[$mapped_type];
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} elseif (!empty($db->options['datatype_map_callback'][$type])) {
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$parameter = array('type' => $type, 'mapped_type' => $mapped_type);
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$default = call_user_func_array($db->options['datatype_map_callback'][$type], array(&$db, __FUNCTION__, $parameter));
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$types[$type] = $default;
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}
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}
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}
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return $types;
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}
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// }}}
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// {{{ checkResultTypes()
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/**
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* Define the list of types to be associated with the columns of a given
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* result set.
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*
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* This function may be called before invoking fetchRow(), fetchOne()
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* fetchCole() and fetchAll() so that the necessary data type
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* conversions are performed on the data to be retrieved by them. If this
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* function is not called, the type of all result set columns is assumed
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* to be text, thus leading to not perform any conversions.
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*
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* @param array $types array variable that lists the
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* data types to be expected in the result set columns. If this array
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* contains less types than the number of columns that are returned
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* in the result set, the remaining columns are assumed to be of the
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* type text. Currently, the types clob and blob are not fully
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* supported.
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function checkResultTypes($types)
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{
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$types = is_array($types) ? $types : array($types);
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foreach ($types as $key => $type) {
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if (!isset($this->valid_default_values[$type])) {
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$db = $this->getDBInstance();
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if (MDB2::isError($db)) {
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return $db;
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}
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if (empty($db->options['datatype_map'][$type])) {
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return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
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$type.' for '.$key.' is not a supported column type', __FUNCTION__);
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}
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}
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}
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return $types;
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}
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// }}}
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// {{{ _baseConvertResult()
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/**
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* General type conversion method
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*
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* @param mixed $value reference to a value to be converted
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* @param string $type specifies which type to convert to
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* @param boolean $rtrim [optional] when TRUE [default], apply rtrim() to text
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* @return object an MDB2 error on failure
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* @access protected
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*/
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function _baseConvertResult($value, $type, $rtrim = true)
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{
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switch ($type) {
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case 'text':
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if ($rtrim) {
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$value = rtrim($value);
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}
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return $value;
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case 'integer':
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return intval($value);
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case 'boolean':
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return !empty($value);
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case 'decimal':
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return $value;
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case 'float':
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return doubleval($value);
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case 'date':
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return $value;
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case 'time':
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return $value;
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case 'timestamp':
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return $value;
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case 'clob':
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case 'blob':
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$this->lobs[] = array(
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'buffer' => null,
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'position' => 0,
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'lob_index' => null,
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'endOfLOB' => false,
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'resource' => $value,
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'value' => null,
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'loaded' => false,
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);
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end($this->lobs);
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$lob_index = key($this->lobs);
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$this->lobs[$lob_index]['lob_index'] = $lob_index;
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return fopen('MDB2LOB://'.$lob_index.'@'.$this->db_index, 'r+');
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}
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$db = $this->getDBInstance();
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if (MDB2::isError($db)) {
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return $db;
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}
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return $db->raiseError(MDB2_ERROR_INVALID, null, null,
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'attempt to convert result value to an unknown type :' . $type, __FUNCTION__);
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}
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// }}}
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// {{{ convertResult()
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/**
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* Convert a value to a RDBMS indipendent MDB2 type
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*
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* @param mixed $value value to be converted
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* @param string $type specifies which type to convert to
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* @param boolean $rtrim [optional] when TRUE [default], apply rtrim() to text
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* @return mixed converted value
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* @access public
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*/
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function convertResult($value, $type, $rtrim = true)
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{
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if (null === $value) {
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return null;
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}
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$db = $this->getDBInstance();
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if (MDB2::isError($db)) {
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return $db;
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}
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if (!empty($db->options['datatype_map'][$type])) {
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$type = $db->options['datatype_map'][$type];
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if (!empty($db->options['datatype_map_callback'][$type])) {
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$parameter = array('type' => $type, 'value' => $value, 'rtrim' => $rtrim);
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return call_user_func_array($db->options['datatype_map_callback'][$type], array(&$db, __FUNCTION__, $parameter));
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}
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}
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return $this->_baseConvertResult($value, $type, $rtrim);
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}
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// }}}
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// {{{ convertResultRow()
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/**
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* Convert a result row
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*
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* @param array $types
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* @param array $row specifies the types to convert to
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* @param boolean $rtrim [optional] when TRUE [default], apply rtrim() to text
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* @return mixed MDB2_OK on success, an MDB2 error on failure
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* @access public
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*/
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function convertResultRow($types, $row, $rtrim = true)
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{
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//$types = $this->_sortResultFieldTypes(array_keys($row), $types);
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$keys = array_keys($row);
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if (is_int($keys[0])) {
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$types = $this->_sortResultFieldTypes($keys, $types);
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}
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foreach ($row as $key => $value) {
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if (empty($types[$key])) {
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continue;
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}
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$value = $this->convertResult($row[$key], $types[$key], $rtrim);
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if (MDB2::isError($value)) {
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return $value;
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}
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$row[$key] = $value;
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}
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return $row;
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}
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// }}}
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// {{{ _sortResultFieldTypes()
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/**
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* convert a result row
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*
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* @param array $types
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* @param array $row specifies the types to convert to
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* @param bool $rtrim if to rtrim text values or not
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function _sortResultFieldTypes($columns, $types)
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{
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$n_cols = count($columns);
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$n_types = count($types);
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if ($n_cols > $n_types) {
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for ($i= $n_cols - $n_types; $i >= 0; $i--) {
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$types[] = null;
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}
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}
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$sorted_types = array();
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foreach ($columns as $col) {
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$sorted_types[$col] = null;
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}
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foreach ($types as $name => $type) {
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if (array_key_exists($name, $sorted_types)) {
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$sorted_types[$name] = $type;
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unset($types[$name]);
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}
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}
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// if there are left types in the array, fill the null values of the
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// sorted array with them, in order.
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if (count($types)) {
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reset($types);
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foreach (array_keys($sorted_types) as $k) {
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if (null === $sorted_types[$k]) {
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$sorted_types[$k] = current($types);
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next($types);
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}
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}
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}
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return $sorted_types;
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}
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// }}}
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// {{{ getDeclaration()
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/**
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* Obtain DBMS specific SQL code portion needed to declare
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* of the given type
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*
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* @param string $type type to which the value should be converted to
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* @param string $name name the field to be declared.
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* @param string $field definition of the field
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* @return string DBMS specific SQL code portion that should be used to
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* declare the specified field.
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* @access public
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*/
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function getDeclaration($type, $name, $field)
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{
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$db = $this->getDBInstance();
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if (MDB2::isError($db)) {
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return $db;
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}
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if (!empty($db->options['datatype_map'][$type])) {
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$type = $db->options['datatype_map'][$type];
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if (!empty($db->options['datatype_map_callback'][$type])) {
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$parameter = array('type' => $type, 'name' => $name, 'field' => $field);
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return call_user_func_array($db->options['datatype_map_callback'][$type], array(&$db, __FUNCTION__, $parameter));
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}
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$field['type'] = $type;
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}
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if (!method_exists($this, "_get{$type}Declaration")) {
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return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
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'type not defined: '.$type, __FUNCTION__);
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}
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return $this->{"_get{$type}Declaration"}($name, $field);
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}
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// }}}
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// {{{ getTypeDeclaration()
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/**
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* Obtain DBMS specific SQL code portion needed to declare an text type
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* field to be used in statements like CREATE TABLE.
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*
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* @param array $field associative array with the name of the properties
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* of the field being declared as array indexes. Currently, the types
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* of supported field properties are as follows:
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*
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* length
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* Integer value that determines the maximum length of the text
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* field. If this argument is missing the field should be
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* declared to have the longest length allowed by the DBMS.
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*
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* default
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* Text value to be used as default for this field.
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*
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* notnull
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* Boolean flag that indicates whether this field is constrained
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* to not be set to null.
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* @return string DBMS specific SQL code portion that should be used to
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* declare the specified field.
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* @access public
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*/
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function getTypeDeclaration($field)
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{
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$db = $this->getDBInstance();
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if (MDB2::isError($db)) {
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return $db;
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}
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switch ($field['type']) {
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case 'text':
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$length = !empty($field['length']) ? $field['length'] : $db->options['default_text_field_length'];
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$fixed = !empty($field['fixed']) ? $field['fixed'] : false;
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return $fixed ? ($length ? 'CHAR('.$length.')' : 'CHAR('.$db->options['default_text_field_length'].')')
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: ($length ? 'VARCHAR('.$length.')' : 'TEXT');
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case 'clob':
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return 'TEXT';
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case 'blob':
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return 'TEXT';
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case 'integer':
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return 'INT';
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case 'boolean':
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return 'INT';
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case 'date':
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return 'CHAR ('.strlen('YYYY-MM-DD').')';
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case 'time':
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return 'CHAR ('.strlen('HH:MM:SS').')';
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case 'timestamp':
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return 'CHAR ('.strlen('YYYY-MM-DD HH:MM:SS').')';
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case 'float':
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return 'TEXT';
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case 'decimal':
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return 'TEXT';
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}
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return '';
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}
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// }}}
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// {{{ _getDeclaration()
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/**
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* Obtain DBMS specific SQL code portion needed to declare a generic type
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* field to be used in statements like CREATE TABLE.
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*
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* @param string $name name the field to be declared.
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* @param array $field associative array with the name of the properties
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* of the field being declared as array indexes. Currently, the types
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* of supported field properties are as follows:
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*
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* length
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* Integer value that determines the maximum length of the text
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* field. If this argument is missing the field should be
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* declared to have the longest length allowed by the DBMS.
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*
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* default
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* Text value to be used as default for this field.
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*
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* notnull
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* Boolean flag that indicates whether this field is constrained
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* to not be set to null.
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* charset
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* Text value with the default CHARACTER SET for this field.
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* collation
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* Text value with the default COLLATION for this field.
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* @return string DBMS specific SQL code portion that should be used to
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* declare the specified field, or a MDB2_Error on failure
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* @access protected
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*/
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function _getDeclaration($name, $field)
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{
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$db = $this->getDBInstance();
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if (MDB2::isError($db)) {
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return $db;
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}
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$name = $db->quoteIdentifier($name, true);
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$declaration_options = $db->datatype->_getDeclarationOptions($field);
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if (MDB2::isError($declaration_options)) {
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return $declaration_options;
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}
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return $name.' '.$this->getTypeDeclaration($field).$declaration_options;
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}
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// }}}
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// {{{ _getDeclarationOptions()
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/**
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* Obtain DBMS specific SQL code portion needed to declare a generic type
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* field to be used in statement like CREATE TABLE, without the field name
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* and type values (ie. just the character set, default value, if the
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* field is permitted to be NULL or not, and the collation options).
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*
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* @param array $field associative array with the name of the properties
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* of the field being declared as array indexes. Currently, the types
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* of supported field properties are as follows:
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*
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* default
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* Text value to be used as default for this field.
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* notnull
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* Boolean flag that indicates whether this field is constrained
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* to not be set to null.
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* charset
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* Text value with the default CHARACTER SET for this field.
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* collation
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* Text value with the default COLLATION for this field.
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* @return string DBMS specific SQL code portion that should be used to
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* declare the specified field's options.
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* @access protected
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*/
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function _getDeclarationOptions($field)
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{
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$charset = empty($field['charset']) ? '' :
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' '.$this->_getCharsetFieldDeclaration($field['charset']);
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$notnull = empty($field['notnull']) ? '' : ' NOT NULL';
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$default = '';
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if (array_key_exists('default', $field)) {
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if ($field['default'] === '') {
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$db = $this->getDBInstance();
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if (MDB2::isError($db)) {
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return $db;
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}
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$valid_default_values = $this->getValidTypes();
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$field['default'] = $valid_default_values[$field['type']];
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|
if ($field['default'] === '' && ($db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL)) {
|
|
$field['default'] = ' ';
|
|
}
|
|
}
|
|
if (null !== $field['default']) {
|
|
$default = ' DEFAULT ' . $this->quote($field['default'], $field['type']);
|
|
}
|
|
}
|
|
|
|
$collation = empty($field['collation']) ? '' :
|
|
' '.$this->_getCollationFieldDeclaration($field['collation']);
|
|
|
|
return $charset.$default.$notnull.$collation;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _getCharsetFieldDeclaration()
|
|
|
|
/**
|
|
* Obtain DBMS specific SQL code portion needed to set the CHARACTER SET
|
|
* of a field declaration to be used in statements like CREATE TABLE.
|
|
*
|
|
* @param string $charset name of the charset
|
|
* @return string DBMS specific SQL code portion needed to set the CHARACTER SET
|
|
* of a field declaration.
|
|
*/
|
|
function _getCharsetFieldDeclaration($charset)
|
|
{
|
|
return '';
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _getCollationFieldDeclaration()
|
|
|
|
/**
|
|
* Obtain DBMS specific SQL code portion needed to set the COLLATION
|
|
* of a field declaration to be used in statements like CREATE TABLE.
|
|
*
|
|
* @param string $collation name of the collation
|
|
* @return string DBMS specific SQL code portion needed to set the COLLATION
|
|
* of a field declaration.
|
|
*/
|
|
function _getCollationFieldDeclaration($collation)
|
|
{
|
|
return '';
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _getIntegerDeclaration()
|
|
|
|
/**
|
|
* Obtain DBMS specific SQL code portion needed to declare an integer type
|
|
* field to be used in statements like CREATE TABLE.
|
|
*
|
|
* @param string $name name the field to be declared.
|
|
* @param array $field associative array with the name of the properties
|
|
* of the field being declared as array indexes. Currently, the types
|
|
* of supported field properties are as follows:
|
|
*
|
|
* unsigned
|
|
* Boolean flag that indicates whether the field should be
|
|
* declared as unsigned integer if possible.
|
|
*
|
|
* default
|
|
* Integer value to be used as default for this field.
|
|
*
|
|
* notnull
|
|
* Boolean flag that indicates whether this field is constrained
|
|
* to not be set to null.
|
|
* @return string DBMS specific SQL code portion that should be used to
|
|
* declare the specified field.
|
|
* @access protected
|
|
*/
|
|
function _getIntegerDeclaration($name, $field)
|
|
{
|
|
if (!empty($field['unsigned'])) {
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
|
|
$db->warnings[] = "unsigned integer field \"$name\" is being declared as signed integer";
|
|
}
|
|
return $this->_getDeclaration($name, $field);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _getTextDeclaration()
|
|
|
|
/**
|
|
* Obtain DBMS specific SQL code portion needed to declare an text type
|
|
* field to be used in statements like CREATE TABLE.
|
|
*
|
|
* @param string $name name the field to be declared.
|
|
* @param array $field associative array with the name of the properties
|
|
* of the field being declared as array indexes. Currently, the types
|
|
* of supported field properties are as follows:
|
|
*
|
|
* length
|
|
* Integer value that determines the maximum length of the text
|
|
* field. If this argument is missing the field should be
|
|
* declared to have the longest length allowed by the DBMS.
|
|
*
|
|
* default
|
|
* Text value to be used as default for this field.
|
|
*
|
|
* notnull
|
|
* Boolean flag that indicates whether this field is constrained
|
|
* to not be set to null.
|
|
* @return string DBMS specific SQL code portion that should be used to
|
|
* declare the specified field.
|
|
* @access protected
|
|
*/
|
|
function _getTextDeclaration($name, $field)
|
|
{
|
|
return $this->_getDeclaration($name, $field);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _getCLOBDeclaration()
|
|
|
|
/**
|
|
* Obtain DBMS specific SQL code portion needed to declare an character
|
|
* large object type field to be used in statements like CREATE TABLE.
|
|
*
|
|
* @param string $name name the field to be declared.
|
|
* @param array $field associative array with the name of the properties
|
|
* of the field being declared as array indexes. Currently, the types
|
|
* of supported field properties are as follows:
|
|
*
|
|
* length
|
|
* Integer value that determines the maximum length of the large
|
|
* object field. If this argument is missing the field should be
|
|
* declared to have the longest length allowed by the DBMS.
|
|
*
|
|
* notnull
|
|
* Boolean flag that indicates whether this field is constrained
|
|
* to not be set to null.
|
|
* @return string DBMS specific SQL code portion that should be used to
|
|
* declare the specified field.
|
|
* @access public
|
|
*/
|
|
function _getCLOBDeclaration($name, $field)
|
|
{
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
|
|
$notnull = empty($field['notnull']) ? '' : ' NOT NULL';
|
|
$name = $db->quoteIdentifier($name, true);
|
|
return $name.' '.$this->getTypeDeclaration($field).$notnull;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _getBLOBDeclaration()
|
|
|
|
/**
|
|
* Obtain DBMS specific SQL code portion needed to declare an binary large
|
|
* object type field to be used in statements like CREATE TABLE.
|
|
*
|
|
* @param string $name name the field to be declared.
|
|
* @param array $field associative array with the name of the properties
|
|
* of the field being declared as array indexes. Currently, the types
|
|
* of supported field properties are as follows:
|
|
*
|
|
* length
|
|
* Integer value that determines the maximum length of the large
|
|
* object field. If this argument is missing the field should be
|
|
* declared to have the longest length allowed by the DBMS.
|
|
*
|
|
* notnull
|
|
* Boolean flag that indicates whether this field is constrained
|
|
* to not be set to null.
|
|
* @return string DBMS specific SQL code portion that should be used to
|
|
* declare the specified field.
|
|
* @access protected
|
|
*/
|
|
function _getBLOBDeclaration($name, $field)
|
|
{
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
|
|
$notnull = empty($field['notnull']) ? '' : ' NOT NULL';
|
|
$name = $db->quoteIdentifier($name, true);
|
|
return $name.' '.$this->getTypeDeclaration($field).$notnull;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _getBooleanDeclaration()
|
|
|
|
/**
|
|
* Obtain DBMS specific SQL code portion needed to declare a boolean type
|
|
* field to be used in statements like CREATE TABLE.
|
|
*
|
|
* @param string $name name the field to be declared.
|
|
* @param array $field associative array with the name of the properties
|
|
* of the field being declared as array indexes. Currently, the types
|
|
* of supported field properties are as follows:
|
|
*
|
|
* default
|
|
* Boolean value to be used as default for this field.
|
|
*
|
|
* notnullL
|
|
* Boolean flag that indicates whether this field is constrained
|
|
* to not be set to null.
|
|
* @return string DBMS specific SQL code portion that should be used to
|
|
* declare the specified field.
|
|
* @access protected
|
|
*/
|
|
function _getBooleanDeclaration($name, $field)
|
|
{
|
|
return $this->_getDeclaration($name, $field);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _getDateDeclaration()
|
|
|
|
/**
|
|
* Obtain DBMS specific SQL code portion needed to declare a date type
|
|
* field to be used in statements like CREATE TABLE.
|
|
*
|
|
* @param string $name name the field to be declared.
|
|
* @param array $field associative array with the name of the properties
|
|
* of the field being declared as array indexes. Currently, the types
|
|
* of supported field properties are as follows:
|
|
*
|
|
* default
|
|
* Date value to be used as default for this field.
|
|
*
|
|
* notnull
|
|
* Boolean flag that indicates whether this field is constrained
|
|
* to not be set to null.
|
|
* @return string DBMS specific SQL code portion that should be used to
|
|
* declare the specified field.
|
|
* @access protected
|
|
*/
|
|
function _getDateDeclaration($name, $field)
|
|
{
|
|
return $this->_getDeclaration($name, $field);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _getTimestampDeclaration()
|
|
|
|
/**
|
|
* Obtain DBMS specific SQL code portion needed to declare a timestamp
|
|
* field to be used in statements like CREATE TABLE.
|
|
*
|
|
* @param string $name name the field to be declared.
|
|
* @param array $field associative array with the name of the properties
|
|
* of the field being declared as array indexes. Currently, the types
|
|
* of supported field properties are as follows:
|
|
*
|
|
* default
|
|
* Timestamp value to be used as default for this field.
|
|
*
|
|
* notnull
|
|
* Boolean flag that indicates whether this field is constrained
|
|
* to not be set to null.
|
|
* @return string DBMS specific SQL code portion that should be used to
|
|
* declare the specified field.
|
|
* @access protected
|
|
*/
|
|
function _getTimestampDeclaration($name, $field)
|
|
{
|
|
return $this->_getDeclaration($name, $field);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _getTimeDeclaration()
|
|
|
|
/**
|
|
* Obtain DBMS specific SQL code portion needed to declare a time
|
|
* field to be used in statements like CREATE TABLE.
|
|
*
|
|
* @param string $name name the field to be declared.
|
|
* @param array $field associative array with the name of the properties
|
|
* of the field being declared as array indexes. Currently, the types
|
|
* of supported field properties are as follows:
|
|
*
|
|
* default
|
|
* Time value to be used as default for this field.
|
|
*
|
|
* notnull
|
|
* Boolean flag that indicates whether this field is constrained
|
|
* to not be set to null.
|
|
* @return string DBMS specific SQL code portion that should be used to
|
|
* declare the specified field.
|
|
* @access protected
|
|
*/
|
|
function _getTimeDeclaration($name, $field)
|
|
{
|
|
return $this->_getDeclaration($name, $field);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _getFloatDeclaration()
|
|
|
|
/**
|
|
* Obtain DBMS specific SQL code portion needed to declare a float type
|
|
* field to be used in statements like CREATE TABLE.
|
|
*
|
|
* @param string $name name the field to be declared.
|
|
* @param array $field associative array with the name of the properties
|
|
* of the field being declared as array indexes. Currently, the types
|
|
* of supported field properties are as follows:
|
|
*
|
|
* default
|
|
* Float value to be used as default for this field.
|
|
*
|
|
* notnull
|
|
* Boolean flag that indicates whether this field is constrained
|
|
* to not be set to null.
|
|
* @return string DBMS specific SQL code portion that should be used to
|
|
* declare the specified field.
|
|
* @access protected
|
|
*/
|
|
function _getFloatDeclaration($name, $field)
|
|
{
|
|
return $this->_getDeclaration($name, $field);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _getDecimalDeclaration()
|
|
|
|
/**
|
|
* Obtain DBMS specific SQL code portion needed to declare a decimal type
|
|
* field to be used in statements like CREATE TABLE.
|
|
*
|
|
* @param string $name name the field to be declared.
|
|
* @param array $field associative array with the name of the properties
|
|
* of the field being declared as array indexes. Currently, the types
|
|
* of supported field properties are as follows:
|
|
*
|
|
* default
|
|
* Decimal value to be used as default for this field.
|
|
*
|
|
* notnull
|
|
* Boolean flag that indicates whether this field is constrained
|
|
* to not be set to null.
|
|
* @return string DBMS specific SQL code portion that should be used to
|
|
* declare the specified field.
|
|
* @access protected
|
|
*/
|
|
function _getDecimalDeclaration($name, $field)
|
|
{
|
|
return $this->_getDeclaration($name, $field);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ compareDefinition()
|
|
|
|
/**
|
|
* Obtain an array of changes that may need to applied
|
|
*
|
|
* @param array $current new definition
|
|
* @param array $previous old definition
|
|
* @return array containing all changes that will need to be applied
|
|
* @access public
|
|
*/
|
|
function compareDefinition($current, $previous)
|
|
{
|
|
$type = !empty($current['type']) ? $current['type'] : null;
|
|
|
|
if (!method_exists($this, "_compare{$type}Definition")) {
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
if (!empty($db->options['datatype_map_callback'][$type])) {
|
|
$parameter = array('current' => $current, 'previous' => $previous);
|
|
$change = call_user_func_array($db->options['datatype_map_callback'][$type], array(&$db, __FUNCTION__, $parameter));
|
|
return $change;
|
|
}
|
|
return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
|
'type "'.$current['type'].'" is not yet supported', __FUNCTION__);
|
|
}
|
|
|
|
if (empty($previous['type']) || $previous['type'] != $type) {
|
|
return $current;
|
|
}
|
|
|
|
$change = $this->{"_compare{$type}Definition"}($current, $previous);
|
|
|
|
if ($previous['type'] != $type) {
|
|
$change['type'] = true;
|
|
}
|
|
|
|
$previous_notnull = !empty($previous['notnull']) ? $previous['notnull'] : false;
|
|
$notnull = !empty($current['notnull']) ? $current['notnull'] : false;
|
|
if ($previous_notnull != $notnull) {
|
|
$change['notnull'] = true;
|
|
}
|
|
|
|
$previous_default = array_key_exists('default', $previous) ? $previous['default'] :
|
|
($previous_notnull ? '' : null);
|
|
$default = array_key_exists('default', $current) ? $current['default'] :
|
|
($notnull ? '' : null);
|
|
if ($previous_default !== $default) {
|
|
$change['default'] = true;
|
|
}
|
|
|
|
return $change;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _compareIntegerDefinition()
|
|
|
|
/**
|
|
* Obtain an array of changes that may need to applied to an integer field
|
|
*
|
|
* @param array $current new definition
|
|
* @param array $previous old definition
|
|
* @return array containing all changes that will need to be applied
|
|
* @access protected
|
|
*/
|
|
function _compareIntegerDefinition($current, $previous)
|
|
{
|
|
$change = array();
|
|
$previous_unsigned = !empty($previous['unsigned']) ? $previous['unsigned'] : false;
|
|
$unsigned = !empty($current['unsigned']) ? $current['unsigned'] : false;
|
|
if ($previous_unsigned != $unsigned) {
|
|
$change['unsigned'] = true;
|
|
}
|
|
$previous_autoincrement = !empty($previous['autoincrement']) ? $previous['autoincrement'] : false;
|
|
$autoincrement = !empty($current['autoincrement']) ? $current['autoincrement'] : false;
|
|
if ($previous_autoincrement != $autoincrement) {
|
|
$change['autoincrement'] = true;
|
|
}
|
|
return $change;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _compareTextDefinition()
|
|
|
|
/**
|
|
* Obtain an array of changes that may need to applied to an text field
|
|
*
|
|
* @param array $current new definition
|
|
* @param array $previous old definition
|
|
* @return array containing all changes that will need to be applied
|
|
* @access protected
|
|
*/
|
|
function _compareTextDefinition($current, $previous)
|
|
{
|
|
$change = array();
|
|
$previous_length = !empty($previous['length']) ? $previous['length'] : 0;
|
|
$length = !empty($current['length']) ? $current['length'] : 0;
|
|
if ($previous_length != $length) {
|
|
$change['length'] = true;
|
|
}
|
|
$previous_fixed = !empty($previous['fixed']) ? $previous['fixed'] : 0;
|
|
$fixed = !empty($current['fixed']) ? $current['fixed'] : 0;
|
|
if ($previous_fixed != $fixed) {
|
|
$change['fixed'] = true;
|
|
}
|
|
return $change;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _compareCLOBDefinition()
|
|
|
|
/**
|
|
* Obtain an array of changes that may need to applied to an CLOB field
|
|
*
|
|
* @param array $current new definition
|
|
* @param array $previous old definition
|
|
* @return array containing all changes that will need to be applied
|
|
* @access protected
|
|
*/
|
|
function _compareCLOBDefinition($current, $previous)
|
|
{
|
|
return $this->_compareTextDefinition($current, $previous);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _compareBLOBDefinition()
|
|
|
|
/**
|
|
* Obtain an array of changes that may need to applied to an BLOB field
|
|
*
|
|
* @param array $current new definition
|
|
* @param array $previous old definition
|
|
* @return array containing all changes that will need to be applied
|
|
* @access protected
|
|
*/
|
|
function _compareBLOBDefinition($current, $previous)
|
|
{
|
|
return $this->_compareTextDefinition($current, $previous);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _compareDateDefinition()
|
|
|
|
/**
|
|
* Obtain an array of changes that may need to applied to an date field
|
|
*
|
|
* @param array $current new definition
|
|
* @param array $previous old definition
|
|
* @return array containing all changes that will need to be applied
|
|
* @access protected
|
|
*/
|
|
function _compareDateDefinition($current, $previous)
|
|
{
|
|
return array();
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _compareTimeDefinition()
|
|
|
|
/**
|
|
* Obtain an array of changes that may need to applied to an time field
|
|
*
|
|
* @param array $current new definition
|
|
* @param array $previous old definition
|
|
* @return array containing all changes that will need to be applied
|
|
* @access protected
|
|
*/
|
|
function _compareTimeDefinition($current, $previous)
|
|
{
|
|
return array();
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _compareTimestampDefinition()
|
|
|
|
/**
|
|
* Obtain an array of changes that may need to applied to an timestamp field
|
|
*
|
|
* @param array $current new definition
|
|
* @param array $previous old definition
|
|
* @return array containing all changes that will need to be applied
|
|
* @access protected
|
|
*/
|
|
function _compareTimestampDefinition($current, $previous)
|
|
{
|
|
return array();
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _compareBooleanDefinition()
|
|
|
|
/**
|
|
* Obtain an array of changes that may need to applied to an boolean field
|
|
*
|
|
* @param array $current new definition
|
|
* @param array $previous old definition
|
|
* @return array containing all changes that will need to be applied
|
|
* @access protected
|
|
*/
|
|
function _compareBooleanDefinition($current, $previous)
|
|
{
|
|
return array();
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _compareFloatDefinition()
|
|
|
|
/**
|
|
* Obtain an array of changes that may need to applied to an float field
|
|
*
|
|
* @param array $current new definition
|
|
* @param array $previous old definition
|
|
* @return array containing all changes that will need to be applied
|
|
* @access protected
|
|
*/
|
|
function _compareFloatDefinition($current, $previous)
|
|
{
|
|
return array();
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _compareDecimalDefinition()
|
|
|
|
/**
|
|
* Obtain an array of changes that may need to applied to an decimal field
|
|
*
|
|
* @param array $current new definition
|
|
* @param array $previous old definition
|
|
* @return array containing all changes that will need to be applied
|
|
* @access protected
|
|
*/
|
|
function _compareDecimalDefinition($current, $previous)
|
|
{
|
|
return array();
|
|
}
|
|
|
|
// }}}
|
|
// {{{ quote()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @param string $type type to which the value should be converted to
|
|
* @param bool $quote determines if the value should be quoted and escaped
|
|
* @param bool $escape_wildcards if to escape escape wildcards
|
|
* @return string text string that represents the given argument value in
|
|
* a DBMS specific format.
|
|
* @access public
|
|
*/
|
|
function quote($value, $type = null, $quote = true, $escape_wildcards = false)
|
|
{
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
|
|
if ((null === $value)
|
|
|| ($value === '' && $db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL)
|
|
) {
|
|
if (!$quote) {
|
|
return null;
|
|
}
|
|
return 'NULL';
|
|
}
|
|
|
|
if (null === $type) {
|
|
switch (gettype($value)) {
|
|
case 'integer':
|
|
$type = 'integer';
|
|
break;
|
|
case 'double':
|
|
// todo: default to decimal as float is quite unusual
|
|
// $type = 'float';
|
|
$type = 'decimal';
|
|
break;
|
|
case 'boolean':
|
|
$type = 'boolean';
|
|
break;
|
|
case 'array':
|
|
$value = serialize($value);
|
|
case 'object':
|
|
$type = 'text';
|
|
break;
|
|
default:
|
|
if (preg_match('/^\d{4}-\d{2}-\d{2} \d{2}:\d{2}$/', $value)) {
|
|
$type = 'timestamp';
|
|
} elseif (preg_match('/^\d{2}:\d{2}$/', $value)) {
|
|
$type = 'time';
|
|
} elseif (preg_match('/^\d{4}-\d{2}-\d{2}$/', $value)) {
|
|
$type = 'date';
|
|
} else {
|
|
$type = 'text';
|
|
}
|
|
break;
|
|
}
|
|
} elseif (!empty($db->options['datatype_map'][$type])) {
|
|
$type = $db->options['datatype_map'][$type];
|
|
if (!empty($db->options['datatype_map_callback'][$type])) {
|
|
$parameter = array('type' => $type, 'value' => $value, 'quote' => $quote, 'escape_wildcards' => $escape_wildcards);
|
|
return call_user_func_array($db->options['datatype_map_callback'][$type], array(&$db, __FUNCTION__, $parameter));
|
|
}
|
|
}
|
|
|
|
if (!method_exists($this, "_quote{$type}")) {
|
|
return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
|
'type not defined: '.$type, __FUNCTION__);
|
|
}
|
|
$value = $this->{"_quote{$type}"}($value, $quote, $escape_wildcards);
|
|
if ($quote && $escape_wildcards && $db->string_quoting['escape_pattern']
|
|
&& $db->string_quoting['escape'] !== $db->string_quoting['escape_pattern']
|
|
) {
|
|
$value.= $this->patternEscapeString();
|
|
}
|
|
return $value;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _quoteInteger()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @param bool $quote determines if the value should be quoted and escaped
|
|
* @param bool $escape_wildcards if to escape escape wildcards
|
|
* @return string text string that represents the given argument value in
|
|
* a DBMS specific format.
|
|
* @access protected
|
|
*/
|
|
function _quoteInteger($value, $quote, $escape_wildcards)
|
|
{
|
|
return (int)$value;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _quoteText()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @param bool $quote determines if the value should be quoted and escaped
|
|
* @param bool $escape_wildcards if to escape escape wildcards
|
|
* @return string text string that already contains any DBMS specific
|
|
* escaped character sequences.
|
|
* @access protected
|
|
*/
|
|
function _quoteText($value, $quote, $escape_wildcards)
|
|
{
|
|
if (!$quote) {
|
|
return $value;
|
|
}
|
|
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
|
|
$value = $db->escape($value, $escape_wildcards);
|
|
if (MDB2::isError($value)) {
|
|
return $value;
|
|
}
|
|
return "'".$value."'";
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _readFile()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @return string text string that represents the given argument value in
|
|
* a DBMS specific format.
|
|
* @access protected
|
|
*/
|
|
function _readFile($value)
|
|
{
|
|
$close = false;
|
|
if (preg_match('/^(\w+:\/\/)(.*)$/', $value, $match)) {
|
|
$close = true;
|
|
if (strtolower($match[1]) == 'file://') {
|
|
$value = $match[2];
|
|
}
|
|
$value = @fopen($value, 'r');
|
|
}
|
|
|
|
if (is_resource($value)) {
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
|
|
$fp = $value;
|
|
$value = '';
|
|
while (!@feof($fp)) {
|
|
$value.= @fread($fp, $db->options['lob_buffer_length']);
|
|
}
|
|
if ($close) {
|
|
@fclose($fp);
|
|
}
|
|
}
|
|
|
|
return $value;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _quoteLOB()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @param bool $quote determines if the value should be quoted and escaped
|
|
* @param bool $escape_wildcards if to escape escape wildcards
|
|
* @return string text string that represents the given argument value in
|
|
* a DBMS specific format.
|
|
* @access protected
|
|
*/
|
|
function _quoteLOB($value, $quote, $escape_wildcards)
|
|
{
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
if ($db->options['lob_allow_url_include']) {
|
|
$value = $this->_readFile($value);
|
|
if (MDB2::isError($value)) {
|
|
return $value;
|
|
}
|
|
}
|
|
return $this->_quoteText($value, $quote, $escape_wildcards);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _quoteCLOB()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @param bool $quote determines if the value should be quoted and escaped
|
|
* @param bool $escape_wildcards if to escape escape wildcards
|
|
* @return string text string that represents the given argument value in
|
|
* a DBMS specific format.
|
|
* @access protected
|
|
*/
|
|
function _quoteCLOB($value, $quote, $escape_wildcards)
|
|
{
|
|
return $this->_quoteLOB($value, $quote, $escape_wildcards);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _quoteBLOB()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @param bool $quote determines if the value should be quoted and escaped
|
|
* @param bool $escape_wildcards if to escape escape wildcards
|
|
* @return string text string that represents the given argument value in
|
|
* a DBMS specific format.
|
|
* @access protected
|
|
*/
|
|
function _quoteBLOB($value, $quote, $escape_wildcards)
|
|
{
|
|
return $this->_quoteLOB($value, $quote, $escape_wildcards);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _quoteBoolean()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @param bool $quote determines if the value should be quoted and escaped
|
|
* @param bool $escape_wildcards if to escape escape wildcards
|
|
* @return string text string that represents the given argument value in
|
|
* a DBMS specific format.
|
|
* @access protected
|
|
*/
|
|
function _quoteBoolean($value, $quote, $escape_wildcards)
|
|
{
|
|
return ($value ? 1 : 0);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _quoteDate()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @param bool $quote determines if the value should be quoted and escaped
|
|
* @param bool $escape_wildcards if to escape escape wildcards
|
|
* @return string text string that represents the given argument value in
|
|
* a DBMS specific format.
|
|
* @access protected
|
|
*/
|
|
function _quoteDate($value, $quote, $escape_wildcards)
|
|
{
|
|
if ($value === 'CURRENT_DATE') {
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
if (isset($db->function) && is_object($this->function) && is_a($db->function, 'MDB2_Driver_Function_Common')) {
|
|
return $db->function->now('date');
|
|
}
|
|
return 'CURRENT_DATE';
|
|
}
|
|
return $this->_quoteText($value, $quote, $escape_wildcards);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _quoteTimestamp()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @param bool $quote determines if the value should be quoted and escaped
|
|
* @param bool $escape_wildcards if to escape escape wildcards
|
|
* @return string text string that represents the given argument value in
|
|
* a DBMS specific format.
|
|
* @access protected
|
|
*/
|
|
function _quoteTimestamp($value, $quote, $escape_wildcards)
|
|
{
|
|
if ($value === 'CURRENT_TIMESTAMP') {
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
if (isset($db->function) && is_object($db->function) && is_a($db->function, 'MDB2_Driver_Function_Common')) {
|
|
return $db->function->now('timestamp');
|
|
}
|
|
return 'CURRENT_TIMESTAMP';
|
|
}
|
|
return $this->_quoteText($value, $quote, $escape_wildcards);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _quoteTime()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @param bool $quote determines if the value should be quoted and escaped
|
|
* @param bool $escape_wildcards if to escape escape wildcards
|
|
* @return string text string that represents the given argument value in
|
|
* a DBMS specific format.
|
|
* @access protected
|
|
*/
|
|
function _quoteTime($value, $quote, $escape_wildcards)
|
|
{
|
|
if ($value === 'CURRENT_TIME') {
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
if (isset($db->function) && is_object($this->function) && is_a($db->function, 'MDB2_Driver_Function_Common')) {
|
|
return $db->function->now('time');
|
|
}
|
|
return 'CURRENT_TIME';
|
|
}
|
|
return $this->_quoteText($value, $quote, $escape_wildcards);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _quoteFloat()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @param bool $quote determines if the value should be quoted and escaped
|
|
* @param bool $escape_wildcards if to escape escape wildcards
|
|
* @return string text string that represents the given argument value in
|
|
* a DBMS specific format.
|
|
* @access protected
|
|
*/
|
|
function _quoteFloat($value, $quote, $escape_wildcards)
|
|
{
|
|
if (preg_match('/^(.*)e([-+])(\d+)$/i', $value, $matches)) {
|
|
$decimal = $this->_quoteDecimal($matches[1], $quote, $escape_wildcards);
|
|
$sign = $matches[2];
|
|
$exponent = str_pad($matches[3], 2, '0', STR_PAD_LEFT);
|
|
$value = $decimal.'E'.$sign.$exponent;
|
|
} else {
|
|
$value = $this->_quoteDecimal($value, $quote, $escape_wildcards);
|
|
}
|
|
return $value;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _quoteDecimal()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @param bool $quote determines if the value should be quoted and escaped
|
|
* @param bool $escape_wildcards if to escape escape wildcards
|
|
* @return string text string that represents the given argument value in
|
|
* a DBMS specific format.
|
|
* @access protected
|
|
*/
|
|
function _quoteDecimal($value, $quote, $escape_wildcards)
|
|
{
|
|
$value = (string)$value;
|
|
$value = preg_replace('/[^\d\.,\-+eE]/', '', $value);
|
|
if (preg_match('/[^\.\d]/', $value)) {
|
|
if (strpos($value, ',')) {
|
|
// 1000,00
|
|
if (!strpos($value, '.')) {
|
|
// convert the last "," to a "."
|
|
$value = strrev(str_replace(',', '.', strrev($value)));
|
|
// 1.000,00
|
|
} elseif (strpos($value, '.') && strpos($value, '.') < strpos($value, ',')) {
|
|
$value = str_replace('.', '', $value);
|
|
// convert the last "," to a "."
|
|
$value = strrev(str_replace(',', '.', strrev($value)));
|
|
// 1,000.00
|
|
} else {
|
|
$value = str_replace(',', '', $value);
|
|
}
|
|
}
|
|
}
|
|
return $value;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ writeLOBToFile()
|
|
|
|
/**
|
|
* retrieve LOB from the database
|
|
*
|
|
* @param resource $lob stream handle
|
|
* @param string $file name of the file into which the LOb should be fetched
|
|
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
|
* @access protected
|
|
*/
|
|
function writeLOBToFile($lob, $file)
|
|
{
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
|
|
if (preg_match('/^(\w+:\/\/)(.*)$/', $file, $match)) {
|
|
if ($match[1] == 'file://') {
|
|
$file = $match[2];
|
|
}
|
|
}
|
|
|
|
$fp = @fopen($file, 'wb');
|
|
while (!@feof($lob)) {
|
|
$result = @fread($lob, $db->options['lob_buffer_length']);
|
|
$read = strlen($result);
|
|
if (@fwrite($fp, $result, $read) != $read) {
|
|
@fclose($fp);
|
|
return $db->raiseError(MDB2_ERROR, null, null,
|
|
'could not write to the output file', __FUNCTION__);
|
|
}
|
|
}
|
|
@fclose($fp);
|
|
return MDB2_OK;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _retrieveLOB()
|
|
|
|
/**
|
|
* retrieve LOB from the database
|
|
*
|
|
* @param array $lob array
|
|
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
|
* @access protected
|
|
*/
|
|
function _retrieveLOB(&$lob)
|
|
{
|
|
if (null === $lob['value']) {
|
|
$lob['value'] = $lob['resource'];
|
|
}
|
|
$lob['loaded'] = true;
|
|
return MDB2_OK;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ readLOB()
|
|
|
|
/**
|
|
* Read data from large object input stream.
|
|
*
|
|
* @param resource $lob stream handle
|
|
* @param string $data reference to a variable that will hold data
|
|
* to be read from the large object input stream
|
|
* @param integer $length value that indicates the largest ammount ofdata
|
|
* to be read from the large object input stream.
|
|
* @return mixed the effective number of bytes read from the large object
|
|
* input stream on sucess or an MDB2 error object.
|
|
* @access public
|
|
* @see endOfLOB()
|
|
*/
|
|
function _readLOB($lob, $length)
|
|
{
|
|
return substr($lob['value'], $lob['position'], $length);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _endOfLOB()
|
|
|
|
/**
|
|
* Determine whether it was reached the end of the large object and
|
|
* therefore there is no more data to be read for the its input stream.
|
|
*
|
|
* @param array $lob array
|
|
* @return mixed true or false on success, a MDB2 error on failure
|
|
* @access protected
|
|
*/
|
|
function _endOfLOB($lob)
|
|
{
|
|
return $lob['endOfLOB'];
|
|
}
|
|
|
|
// }}}
|
|
// {{{ destroyLOB()
|
|
|
|
/**
|
|
* Free any resources allocated during the lifetime of the large object
|
|
* handler object.
|
|
*
|
|
* @param resource $lob stream handle
|
|
* @access public
|
|
*/
|
|
function destroyLOB($lob)
|
|
{
|
|
$lob_data = stream_get_meta_data($lob);
|
|
$lob_index = $lob_data['wrapper_data']->lob_index;
|
|
fclose($lob);
|
|
if (isset($this->lobs[$lob_index])) {
|
|
$this->_destroyLOB($this->lobs[$lob_index]);
|
|
unset($this->lobs[$lob_index]);
|
|
}
|
|
return MDB2_OK;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _destroyLOB()
|
|
|
|
/**
|
|
* Free any resources allocated during the lifetime of the large object
|
|
* handler object.
|
|
*
|
|
* @param array $lob array
|
|
* @access private
|
|
*/
|
|
function _destroyLOB(&$lob)
|
|
{
|
|
return MDB2_OK;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ implodeArray()
|
|
|
|
/**
|
|
* apply a type to all values of an array and return as a comma seperated string
|
|
* useful for generating IN statements
|
|
*
|
|
* @access public
|
|
*
|
|
* @param array $array data array
|
|
* @param string $type determines type of the field
|
|
*
|
|
* @return string comma seperated values
|
|
*/
|
|
function implodeArray($array, $type = false)
|
|
{
|
|
if (!is_array($array) || empty($array)) {
|
|
return 'NULL';
|
|
}
|
|
if ($type) {
|
|
foreach ($array as $value) {
|
|
$return[] = $this->quote($value, $type);
|
|
}
|
|
} else {
|
|
$return = $array;
|
|
}
|
|
return implode(', ', $return);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ matchPattern()
|
|
|
|
/**
|
|
* build a pattern matching string
|
|
*
|
|
* @access public
|
|
*
|
|
* @param array $pattern even keys are strings, odd are patterns (% and _)
|
|
* @param string $operator optional pattern operator (LIKE, ILIKE and maybe others in the future)
|
|
* @param string $field optional field name that is being matched against
|
|
* (might be required when emulating ILIKE)
|
|
*
|
|
* @return string SQL pattern
|
|
*/
|
|
function matchPattern($pattern, $operator = null, $field = null)
|
|
{
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
|
|
$match = '';
|
|
if (null !== $operator) {
|
|
$operator = strtoupper($operator);
|
|
switch ($operator) {
|
|
// case insensitive
|
|
case 'ILIKE':
|
|
if (null === $field) {
|
|
return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
|
'case insensitive LIKE matching requires passing the field name', __FUNCTION__);
|
|
}
|
|
$db->loadModule('Function', null, true);
|
|
$match = $db->function->lower($field).' LIKE ';
|
|
break;
|
|
case 'NOT ILIKE':
|
|
if (null === $field) {
|
|
return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
|
'case insensitive NOT ILIKE matching requires passing the field name', __FUNCTION__);
|
|
}
|
|
$db->loadModule('Function', null, true);
|
|
$match = $db->function->lower($field).' NOT LIKE ';
|
|
break;
|
|
// case sensitive
|
|
case 'LIKE':
|
|
$match = (null === $field) ? 'LIKE ' : ($field.' LIKE ');
|
|
break;
|
|
case 'NOT LIKE':
|
|
$match = (null === $field) ? 'NOT LIKE ' : ($field.' NOT LIKE ');
|
|
break;
|
|
default:
|
|
return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
|
'not a supported operator type:'. $operator, __FUNCTION__);
|
|
}
|
|
}
|
|
$match.= "'";
|
|
foreach ($pattern as $key => $value) {
|
|
if ($key % 2) {
|
|
$match.= $value;
|
|
} else {
|
|
$escaped = $db->escape($value);
|
|
if (MDB2::isError($escaped)) {
|
|
return $escaped;
|
|
}
|
|
$match.= $db->escapePattern($escaped);
|
|
}
|
|
}
|
|
$match.= "'";
|
|
$match.= $this->patternEscapeString();
|
|
return $match;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ patternEscapeString()
|
|
|
|
/**
|
|
* build string to define pattern escape character
|
|
*
|
|
* @access public
|
|
*
|
|
* @return string define pattern escape character
|
|
*/
|
|
function patternEscapeString()
|
|
{
|
|
return '';
|
|
}
|
|
|
|
// }}}
|
|
// {{{ mapNativeDatatype()
|
|
|
|
/**
|
|
* Maps a native array description of a field to a MDB2 datatype and length
|
|
*
|
|
* @param array $field native field description
|
|
* @return array containing the various possible types, length, sign, fixed
|
|
* @access public
|
|
*/
|
|
function mapNativeDatatype($field)
|
|
{
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
|
|
// If the user has specified an option to map the native field
|
|
// type to a custom MDB2 datatype...
|
|
$db_type = strtok($field['type'], '(), ');
|
|
if (!empty($db->options['nativetype_map_callback'][$db_type])) {
|
|
return call_user_func_array($db->options['nativetype_map_callback'][$db_type], array($db, $field));
|
|
}
|
|
|
|
// Otherwise perform the built-in (i.e. normal) MDB2 native type to
|
|
// MDB2 datatype conversion
|
|
return $this->_mapNativeDatatype($field);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _mapNativeDatatype()
|
|
|
|
/**
|
|
* Maps a native array description of a field to a MDB2 datatype and length
|
|
*
|
|
* @param array $field native field description
|
|
* @return array containing the various possible types, length, sign, fixed
|
|
* @access public
|
|
*/
|
|
function _mapNativeDatatype($field)
|
|
{
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
|
|
return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
|
'method not implemented', __FUNCTION__);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ mapPrepareDatatype()
|
|
|
|
/**
|
|
* Maps an mdb2 datatype to mysqli prepare type
|
|
*
|
|
* @param string $type
|
|
* @return string
|
|
* @access public
|
|
*/
|
|
function mapPrepareDatatype($type)
|
|
{
|
|
$db = $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
|
|
if (!empty($db->options['datatype_map'][$type])) {
|
|
$type = $db->options['datatype_map'][$type];
|
|
if (!empty($db->options['datatype_map_callback'][$type])) {
|
|
$parameter = array('type' => $type);
|
|
return call_user_func_array($db->options['datatype_map_callback'][$type], array(&$db, __FUNCTION__, $parameter));
|
|
}
|
|
}
|
|
|
|
return $type;
|
|
}
|
|
}
|
|
?>
|