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doctrine2/lib/Doctrine/DataDict.php

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<?php
/*
* $Id$
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.org>.
*/
/**
* Doctrine_DataDict
*
* @package Doctrine
* @subpackage DataDict
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link www.phpdoctrine.org
* @since 1.0
* @version $Revision$
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
* @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
*/
class Doctrine_DataDict extends Doctrine_Connection_Module
{
/**
* Obtain an array of changes that may need to applied
*
* @param array $current new definition
* @param array $previous old definition
* @return array containing all changes that will need to be applied
*/
public function compareDefinition($current, $previous)
{
$type = !empty($current['type']) ? $current['type'] : null;
if ( ! method_exists($this, "_compare{$type}Definition")) {
throw new Doctrine_DataDict_Exception('type "'.$current['type'].'" is not yet supported');
}
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;
}
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/**
* parseBoolean
* parses a literal boolean value and returns
* proper sql equivalent
*
* @param string $value boolean value to be parsed
* @return string parsed boolean value
*/
public function parseBoolean($value)
{
// parse booleans
if ($value == 'true') {
$value = 1;
} elseif ($value == 'false') {
$value = 0;
}
return $value;
}
}