| 1 | <?php |
| 2 | /* |
| 3 | * $Id: Mysql.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.org>. |
| 20 | */ |
| 21 | Doctrine::autoload('Doctrine_Expression_Driver'); |
| 22 | /** |
| 23 | * Doctrine_Expression_Mysql |
| 24 | * |
| 25 | * @package Doctrine |
| 26 | * @subpackage Expression |
| 27 | * @license http://www.opensource.org/licenses/lgpl-license.php LGPL |
| 28 | * @link www.phpdoctrine.org |
| 29 | * @since 1.0 |
| 30 | * @version $Revision: 2963 $ |
| 31 | * @author Konsta Vesterinen <kvesteri@cc.hut.fi> |
| 32 | */ |
| 33 | class Doctrine_Expression_Mysql extends Doctrine_Expression_Driver |
| 34 | { |
| 35 | /** |
| 36 | * returns the regular expression operator |
| 37 | * |
| 38 | * @return string |
| 39 | */ |
| 40 | public function regexp() |
| 41 | { |
| 42 | return 'RLIKE'; |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * return string to call a function to get random value inside an SQL statement |
| 47 | * |
| 48 | * @return string to generate float between 0 and 1 |
| 49 | */ |
| 50 | public function random() |
| 51 | { |
| 52 | return 'RAND()'; |
| 53 | } |
| 54 | |
| 55 | /** |
| 56 | * build a pattern matching string |
| 57 | * |
| 58 | * EXPERIMENTAL |
| 59 | * |
| 60 | * WARNING: this function is experimental and may change signature at |
| 61 | * any time until labelled as non-experimental |
| 62 | * |
| 63 | * @access public |
| 64 | * |
| 65 | * @param array $pattern even keys are strings, odd are patterns (% and _) |
| 66 | * @param string $operator optional pattern operator (LIKE, ILIKE and maybe others in the future) |
| 67 | * @param string $field optional field name that is being matched against |
| 68 | * (might be required when emulating ILIKE) |
| 69 | * |
| 70 | * @return string SQL pattern |
| 71 | */ |
| 72 | public function matchPattern($pattern, $operator = null, $field = null) |
| 73 | { |
| 74 | $match = ''; |
| 75 | if ( ! is_null($operator)) { |
| 76 | $field = is_null($field) ? '' : $field.' '; |
| 77 | $operator = strtoupper($operator); |
| 78 | switch ($operator) { |
| 79 | // case insensitive |
| 80 | case 'ILIKE': |
| 81 | $match = $field.'LIKE '; |
| 82 | break; |
| 83 | // case sensitive |
| 84 | case 'LIKE': |
| 85 | $match = $field.'LIKE BINARY '; |
| 86 | break; |
| 87 | default: |
| 88 | throw new Doctrine_Expression_Mysql_Exception('not a supported operator type:'. $operator); |
| 89 | } |
| 90 | } |
| 91 | $match.= "'"; |
| 92 | foreach ($pattern as $key => $value) { |
| 93 | if ($key % 2) { |
| 94 | $match .= $value; |
| 95 | } else { |
| 96 | $match .= $this->conn->escapePattern($this->conn->escape($value)); |
| 97 | } |
| 98 | } |
| 99 | $match.= "'"; |
| 100 | $match.= $this->patternEscapeString(); |
| 101 | return $match; |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * Returns global unique identifier |
| 106 | * |
| 107 | * @return string to get global unique identifier |
| 108 | */ |
| 109 | public function guid() |
| 110 | { |
| 111 | return 'UUID()'; |
| 112 | } |
| 113 | } |