| 1 | <?php |
| 2 | /* |
| 3 | * $Id: DataDict.php 2963 2007-10-21 06:23:59Z Jonathan.Wage $ |
| 4 | * |
| 5 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 6 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 7 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 8 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 9 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 10 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 11 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 12 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 13 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 14 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 15 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 16 | * |
| 17 | * This software consists of voluntary contributions made by many individuals |
| 18 | * and is licensed under the LGPL. For more information, see |
| 19 | * <http://www.phpdoctrine.com>. |
| 20 | */ |
| 21 | |
| 22 | /** |
| 23 | * Doctrine_DataDict |
| 24 | * |
| 25 | * @package Doctrine |
| 26 | * @subpackage DataDict |
| 27 | * @license http://www.opensource.org/licenses/lgpl-license.php LGPL |
| 28 | * @link www.phpdoctrine.com |
| 29 | * @since 1.0 |
| 30 | * @version $Revision: 2963 $ |
| 31 | * @author Konsta Vesterinen <kvesteri@cc.hut.fi> |
| 32 | * @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library) |
| 33 | */ |
| 34 | class Doctrine_DataDict extends Doctrine_Connection_Module |
| 35 | { |
| 36 | /** |
| 37 | * Obtain an array of changes that may need to applied |
| 38 | * |
| 39 | * @param array $current new definition |
| 40 | * @param array $previous old definition |
| 41 | * @return array containing all changes that will need to be applied |
| 42 | */ |
| 43 | public function compareDefinition($current, $previous) |
| 44 | { |
| 45 | $type = !empty($current['type']) ? $current['type'] : null; |
| 46 | |
| 47 | if ( ! method_exists($this, "_compare{$type}Definition")) { |
| 48 | throw new Doctrine_DataDict_Exception('type "'.$current['type'].'" is not yet supported'); |
| 49 | } |
| 50 | |
| 51 | if (empty($previous['type']) || $previous['type'] != $type) { |
| 52 | return $current; |
| 53 | } |
| 54 | |
| 55 | $change = $this->{"_compare{$type}Definition"}($current, $previous); |
| 56 | |
| 57 | if ($previous['type'] != $type) { |
| 58 | $change['type'] = true; |
| 59 | } |
| 60 | |
| 61 | $previous_notnull = !empty($previous['notnull']) ? $previous['notnull'] : false; |
| 62 | $notnull = !empty($current['notnull']) ? $current['notnull'] : false; |
| 63 | if ($previous_notnull != $notnull) { |
| 64 | $change['notnull'] = true; |
| 65 | } |
| 66 | |
| 67 | $previous_default = array_key_exists('default', $previous) ? $previous['default'] : |
| 68 | ($previous_notnull ? '' : null); |
| 69 | $default = array_key_exists('default', $current) ? $current['default'] : |
| 70 | ($notnull ? '' : null); |
| 71 | if ($previous_default !== $default) { |
| 72 | $change['default'] = true; |
| 73 | } |
| 74 | |
| 75 | return $change; |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * parseBoolean |
| 80 | * parses a literal boolean value and returns |
| 81 | * proper sql equivalent |
| 82 | * |
| 83 | * @param string $value boolean value to be parsed |
| 84 | * @return string parsed boolean value |
| 85 | */ |
| 86 | public function parseBoolean($value) |
| 87 | { |
| 88 | // parse booleans |
| 89 | if ($value == 'true') { |
| 90 | $value = 1; |
| 91 | } elseif ($value == 'false') { |
| 92 | $value = 0; |
| 93 | } |
| 94 | return $value; |
| 95 | } |
| 96 | } |