| 1 | <?php |
| 2 | /* |
| 3 | * $Id: Pgsql.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 | Doctrine::autoload('Doctrine_Sequence'); |
| 22 | /** |
| 23 | * Doctrine_Sequence_Pgsql |
| 24 | * |
| 25 | * @package Doctrine |
| 26 | * @subpackage Sequence |
| 27 | * @author Konsta Vesterinen <kvesteri@cc.hut.fi> |
| 28 | * @license http://www.opensource.org/licenses/lgpl-license.php LGPL |
| 29 | * @link www.phpdoctrine.com |
| 30 | * @since 1.0 |
| 31 | * @version $Revision: 2963 $ |
| 32 | */ |
| 33 | class Doctrine_Sequence_Pgsql extends Doctrine_Sequence |
| 34 | { |
| 35 | /** |
| 36 | * Returns the next free id of a sequence |
| 37 | * |
| 38 | * @param string $seqName name of the sequence |
| 39 | * @param bool onDemand when true missing sequences are automatic created |
| 40 | * |
| 41 | * @return integer next id in the given sequence |
| 42 | */ |
| 43 | public function nextId($seqName, $onDemand = true) |
| 44 | { |
| 45 | $sequenceName = $this->conn->quoteIdentifier($this->conn->formatter->getSequenceName($seqName), true); |
| 46 | |
| 47 | $query = "SELECT NEXTVAL('" . $sequenceName . "')"; |
| 48 | try { |
| 49 | $result = (int) $this->conn->fetchOne($query); |
| 50 | } catch(Doctrine_Connection_Exception $e) { |
| 51 | if ($onDemand && $e->getPortableCode() == Doctrine::ERR_NOSUCHTABLE) { |
| 52 | |
| 53 | try { |
| 54 | $result = $this->conn->export->createSequence($seqName); |
| 55 | } catch(Doctrine_Exception $e) { |
| 56 | throw new Doctrine_Sequence_Exception('on demand sequence ' . $seqName . ' could not be created'); |
| 57 | } |
| 58 | return $this->nextId($seqName, false); |
| 59 | } |
| 60 | } |
| 61 | return $result; |
| 62 | } |
| 63 | |
| 64 | /** |
| 65 | * lastInsertId |
| 66 | * |
| 67 | * Returns the autoincrement ID if supported or $id or fetches the current |
| 68 | * ID in a sequence called: $table.(empty($field) ? '' : '_'.$field) |
| 69 | * |
| 70 | * @param string name of the table into which a new row was inserted |
| 71 | * @param string name of the field into which a new row was inserted |
| 72 | * @return integer the autoincremented id |
| 73 | */ |
| 74 | public function lastInsertId($table = null, $field = null) |
| 75 | { |
| 76 | $seqName = $table . (empty($field) ? '' : '_' . $field); |
| 77 | $sequenceName = $this->conn->quoteIdentifier($this->conn->formatter->getSequenceName($seqName), true); |
| 78 | |
| 79 | return (int) $this->conn->fetchOne("SELECT CURRVAL('" . $sequenceName . "')"); |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * Returns the current id of a sequence |
| 84 | * |
| 85 | * @param string $seqName name of the sequence |
| 86 | * |
| 87 | * @return integer current id in the given sequence |
| 88 | */ |
| 89 | public function currId($seqName) |
| 90 | { |
| 91 | $sequenceName = $this->conn->quoteIdentifier($this->conn->formatter->getSequenceName($seqName), true); |
| 92 | return (int) $this->conn->fetchOne('SELECT last_value FROM ' . $sequenceName); |
| 93 | } |
| 94 | } |