| <?php |
| /** |
| * File containing the ezcPersistentManualGenerator class |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| * @package PersistentObject |
| * @version //autogen// |
| * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0 |
| */ |
| |
| /** |
| * This identifier generator does not generate any ID's. Instead the user must manually |
| * assign an ID when the object is saved. |
| * |
| * This is useful don't want any automatic id generation. |
| * |
| * @version //autogen// |
| * @package PersistentObject |
| */ |
| class ezcPersistentManualGenerator extends ezcPersistentIdentifierGenerator |
| { |
| /** |
| * Holds the Id temporily while storing. |
| * |
| * @var int |
| */ |
| private $id = null; |
| |
| /** |
| * Returns true if the object is persistent already. |
| * |
| * Called in the beginning of the save process. |
| * |
| * Persistent objects that are being saved must not exist in the database already. |
| * |
| * @param ezcPersistentObjectDefinition $def |
| * @param ezcDbHandler $db |
| * @param array(key=>value) $state |
| * @return void |
| */ |
| public function checkPersistence( ezcPersistentObjectDefinition $def, ezcDbHandler $db, array $state ) |
| { |
| // store id |
| $this->id = $state[$def->idProperty->propertyName]; |
| |
| // check if there is an object with this id already |
| $q = $db->createSelectQuery(); |
| $q->select( '*' )->from( |
| $db->quoteIdentifier( $def->table ) |
| )->where( |
| $q->expr->eq( |
| $db->quoteIdentifier( $def->idProperty->columnName ), |
| $q->bindValue( $this->id, null, $def->idProperty->databaseType ) |
| ) |
| ); |
| try |
| { |
| $stmt = $q->prepare(); |
| $stmt->execute(); |
| } |
| catch ( PDOException $e ) |
| { |
| throw new ezcPersistentQueryException( $e->getMessage(), $q ); |
| } |
| |
| $row = $stmt->fetch( PDO::FETCH_ASSOC ); |
| $stmt->closeCursor(); |
| if ( $row !== false ) // we got a result |
| { |
| return true; |
| } |
| |
| return false; |
| } |
| |
| /** |
| * Sets the correct id on the insert query. |
| * |
| * @param ezcPersistentObjectDefinition $def |
| * @param ezcDbHandler $db |
| * @param ezcQueryInsert $q |
| * @return void |
| */ |
| public function preSave( ezcPersistentObjectDefinition $def, ezcDbHandler $db, ezcQueryInsert $q ) |
| { |
| // Sanity check. |
| // ID must have been stored during the persistence check before inserting the object. |
| if ( $this->id === null ) |
| { |
| throw new ezcPersistentIdentifierGenerationException( |
| $def->class, |
| 'ezcPersistentManualGenerator expects the ID to be present before saving.' |
| ); |
| } |
| $q->set( |
| $db->quoteIdentifier( $def->idProperty->columnName ), |
| $q->bindValue( $this->id, null, $def->idProperty->databaseType ) |
| ); |
| } |
| |
| /** |
| * Returns the value of the generated identifier for the new object. |
| * |
| * Called right after execution of the insert query. |
| * |
| * @param ezcPersistentObjectDefinition $def |
| * @param ezcDbHandler $db |
| * @return int |
| */ |
| public function postSave( ezcPersistentObjectDefinition $def, ezcDbHandler $db ) |
| { |
| return $this->id; |
| } |
| } |
| |
| ?> |