722 lines
30 KiB
PHP
722 lines
30 KiB
PHP
<?php
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/*
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* $Id$
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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namespace Doctrine\ORM\Tools;
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use Doctrine\DBAL\Types\Type,
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Doctrine\ORM\EntityManager,
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Doctrine\ORM\Internal\CommitOrderCalculator;
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/**
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* The SchemaTool is a tool to create/drop/update database schemas based on
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* <tt>ClassMetadata</tt> class descriptors.
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*
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @link www.doctrine-project.org
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* @since 2.0
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* @version $Revision$
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* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
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* @author Jonathan Wage <jonwage@gmail.com>
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* @author Roman Borschel <roman@code-factory.org>
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*/
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class SchemaTool
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{
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/** The EntityManager */
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private $_em;
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/** The DatabasePlatform */
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private $_platform;
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/**
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* Initializes a new SchemaTool instance that uses the connection of the
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* provided EntityManager.
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*
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* @param Doctrine\ORM\EntityManager $em
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*/
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public function __construct(EntityManager $em)
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{
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$this->_em = $em;
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$this->_platform = $em->getConnection()->getDatabasePlatform();
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}
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/**
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* Creates the database schema for the given array of ClassMetadata instances.
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*
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* @param array $classes
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*/
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public function createSchema(array $classes)
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{
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$createSchemaSql = $this->getCreateSchemaSql($classes);
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$conn = $this->_em->getConnection();
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foreach ($createSchemaSql as $sql) {
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$conn->execute($sql);
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}
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}
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/**
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* Gets the list of DDL statements that are required to create the database schema for
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* the given list of ClassMetadata instances.
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*
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* @param array $classes
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* @return array $sql The SQL statements needed to create the schema for the classes.
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*/
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public function getCreateSchemaSql(array $classes)
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{
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$sql = array(); // All SQL statements
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$processedClasses = array(); // Reminder for processed classes, used for hierarchies
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$foreignKeyConstraints = array(); // FK SQL statements. Appended to $sql at the end.
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$sequences = array(); // Sequence SQL statements. Appended to $sql at the end.
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foreach ($classes as $class) {
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if (isset($processedClasses[$class->name]) || $class->isMappedSuperclass) {
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continue;
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}
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$options = array(); // table options
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$columns = array(); // table columns
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if ($class->isInheritanceTypeSingleTable()) {
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$columns = $this->_gatherColumns($class, $options);
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$this->_gatherRelationsSql($class, $sql, $columns, $foreignKeyConstraints);
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// Add the discriminator column
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$discrColumnDef = $this->_getDiscriminatorColumnDefinition($class);
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$columns[$discrColumnDef['name']] = $discrColumnDef;
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// Aggregate all the information from all classes in the hierarchy
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foreach ($class->parentClasses as $parentClassName) {
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// Parent class information is already contained in this class
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$processedClasses[$parentClassName] = true;
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}
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foreach ($class->subClasses as $subClassName) {
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$subClass = $this->_em->getClassMetadata($subClassName);
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$columns = array_merge($columns, $this->_gatherColumns($subClass, $options));
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$this->_gatherRelationsSql($subClass, $sql, $columns, $foreignKeyConstraints);
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$processedClasses[$subClassName] = true;
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}
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} else if ($class->isInheritanceTypeJoined()) {
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// Add all non-inherited fields as columns
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foreach ($class->fieldMappings as $fieldName => $mapping) {
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if ( ! isset($mapping['inherited'])) {
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$columnName = $class->getQuotedColumnName($mapping['columnName'], $this->_platform);
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$columns[$columnName] = $this->_gatherColumn($class, $mapping, $options);
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}
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}
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$this->_gatherRelationsSql($class, $sql, $columns, $foreignKeyConstraints);
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// Add the discriminator column only to the root table
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if ($class->name == $class->rootEntityName) {
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$discrColumnDef = $this->_getDiscriminatorColumnDefinition($class);
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$columns[$discrColumnDef['name']] = $discrColumnDef;
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} else {
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// Add an ID FK column to child tables
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$idMapping = $class->fieldMappings[$class->identifier[0]];
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$idColumn = $this->_gatherColumn($class, $idMapping, $options);
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unset($idColumn['autoincrement']);
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$columns[$idColumn['name']] = $idColumn;
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// Add a FK constraint on the ID column
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$constraint = array();
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$constraint['tableName'] = $class->getQuotedTableName($this->_platform);
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$constraint['foreignTable'] = $this->_em->getClassMetadata($class->rootEntityName)->getQuotedTableName($this->_platform);
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$constraint['local'] = array($idColumn['name']);
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$constraint['foreign'] = array($idColumn['name']);
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$constraint['onDelete'] = 'CASCADE';
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$foreignKeyConstraints[] = $constraint;
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}
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} else if ($class->isInheritanceTypeTablePerClass()) {
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throw DoctrineException::notSupported();
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} else {
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$columns = $this->_gatherColumns($class, $options);
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$this->_gatherRelationsSql($class, $sql, $columns, $foreignKeyConstraints);
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}
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if (isset($class->primaryTable['indexes'])) {
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$options['indexes'] = $class->primaryTable['indexes'];
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}
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if (isset($class->primaryTable['uniqueConstraints'])) {
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$options['uniqueConstraints'] = $class->primaryTable['uniqueConstraints'];
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}
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$sql = array_merge($sql, $this->_platform->getCreateTableSql(
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$class->getQuotedTableName($this->_platform), $columns, $options)
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);
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$processedClasses[$class->name] = true;
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// TODO if we're reusing the sequence previously defined (in another model),
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// it should not attempt to create a new sequence.
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if ($class->isIdGeneratorSequence() && $class->name == $class->rootEntityName) {
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$seqDef = $class->getSequenceGeneratorDefinition();
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$sequences[] = $this->_platform->getCreateSequenceSql(
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$seqDef['sequenceName'],
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$seqDef['initialValue'],
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$seqDef['allocationSize']
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);
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}
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}
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// Append the foreign key constraints SQL
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if ($this->_platform->supportsForeignKeyConstraints()) {
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foreach ($foreignKeyConstraints as $fkConstraint) {
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$sql = array_merge($sql, (array) $this->_platform->getCreateForeignKeySql($fkConstraint['tableName'], $fkConstraint));
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}
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}
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// Append the sequence SQL
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$sql = array_merge($sql, $sequences);
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return $sql;
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}
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/**
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* Gets a portable column definition as required by the DBAL for the discriminator
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* column of a class.
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*
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* @param ClassMetadata $class
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* @return array The portable column definition of the discriminator column as required by
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* the DBAL.
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*/
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private function _getDiscriminatorColumnDefinition($class)
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{
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$discrColumn = $class->discriminatorColumn;
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return array(
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'name' => $class->getQuotedDiscriminatorColumnName($this->_platform),
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'type' => Type::getType($discrColumn['type']),
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'length' => $discrColumn['length'],
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'notnull' => true
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);
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}
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/**
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* Gathers the column definitions as required by the DBAL of all field mappings
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* found in the given class.
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*
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* @param ClassMetadata $class
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* @param array $options The table options/constraints where any additional options/constraints
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* that are required by columns should be appended.
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* @return array The list of portable column definitions as required by the DBAL.
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*/
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private function _gatherColumns($class, array &$options)
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{
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$columns = array();
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foreach ($class->fieldMappings as $fieldName => $mapping) {
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$column = $this->_gatherColumn($class, $mapping, $options);
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$columns[$column['name']] = $column;
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}
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return $columns;
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}
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/**
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* Creates a column definition as required by the DBAL from an ORM field mapping definition.
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*
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* @param ClassMetadata $class The class that owns the field mapping.
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* @param array $mapping The field mapping.
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* @param array $options The table options/constraints where any additional options/constraints
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* required by the column should be appended.
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* @return array The portable column definition as required by the DBAL.
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*/
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private function _gatherColumn($class, array $mapping, array &$options)
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{
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$column = array();
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$column['name'] = $class->getQuotedColumnName($mapping['fieldName'], $this->_platform);
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$column['type'] = Type::getType($mapping['type']);
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$column['length'] = isset($mapping['length']) ? $mapping['length'] : null;
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$column['notnull'] = isset($mapping['nullable']) ? ! $mapping['nullable'] : false;
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$column['unique'] = isset($mapping['unique']) ? $mapping['unique'] : false;
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$column['version'] = $class->isVersioned && $class->versionField == $mapping['fieldName'] ? true : false;
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if (isset($mapping['precision'])) {
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$column['precision'] = $mapping['precision'];
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}
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if (isset($mapping['scale'])) {
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$column['scale'] = $mapping['scale'];
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}
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if (isset($mapping['default'])) {
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$column['default'] = $mapping['default'];
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}
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if ($class->isIdentifier($mapping['fieldName'])) {
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$column['primary'] = true;
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$options['primary'][] = $mapping['columnName'];
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if ($class->isIdGeneratorIdentity()) {
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$column['autoincrement'] = true;
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}
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}
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return $column;
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}
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/**
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* Gathers the SQL for properly setting up the relations of the given class.
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* This includes the SQL for foreign key constraints and join tables.
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*
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* @param ClassMetadata $class
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* @param array $sql The sequence of SQL statements where any new statements should be appended.
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* @param array $columns The list of columns in the class's primary table where any additional
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* columns required by relations should be appended.
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* @param array $constraints The constraints of the table where any additional constraints
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* required by relations should be appended.
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* @return void
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*/
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private function _gatherRelationsSql($class, array &$sql, array &$columns, array &$constraints)
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{
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foreach ($class->associationMappings as $fieldName => $mapping) {
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if (isset($class->inheritedAssociationFields[$fieldName])) {
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continue;
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}
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$foreignClass = $this->_em->getClassMetadata($mapping->targetEntityName);
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if ($mapping->isOneToOne() && $mapping->isOwningSide) {
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$constraint = array();
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$constraint['tableName'] = $class->getQuotedTableName($this->_platform);
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$constraint['foreignTable'] = $foreignClass->getQuotedTableName($this->_platform);
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$constraint['local'] = array();
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$constraint['foreign'] = array();
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foreach ($mapping->getJoinColumns() as $joinColumn) {
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$column = array();
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$column['name'] = $mapping->getQuotedJoinColumnName($joinColumn['name'], $this->_platform);
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$column['type'] = Type::getType($foreignClass->getTypeOfColumn($joinColumn['referencedColumnName']));
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$columns[$column['name']] = $column;
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$constraint['local'][] = $column['name'];
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$constraint['foreign'][] = $joinColumn['referencedColumnName'];
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if (isset($joinColumn['onUpdate'])) {
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$constraint['onUpdate'] = $joinColumn['onUpdate'];
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}
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if (isset($joinColumn['onDelete'])) {
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$constraint['onDelete'] = $joinColumn['onDelete'];
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}
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}
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$constraints[] = $constraint;
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} else if ($mapping->isOneToMany() && $mapping->isOwningSide) {
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//... create join table, one-many through join table supported later
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throw DoctrineException::notSupported();
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} else if ($mapping->isManyToMany() && $mapping->isOwningSide) {
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// create join table
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$joinTableColumns = array();
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$joinTableOptions = array();
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$joinTable = $mapping->getJoinTable();
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// Build first FK constraint (relation table => source table)
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$constraint1 = array(
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'tableName' => $mapping->getQuotedJoinTableName($this->_platform),
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'foreignTable' => $class->getQuotedTableName($this->_platform),
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'local' => array(),
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'foreign' => array()
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);
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foreach ($joinTable['joinColumns'] as $joinColumn) {
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$column = array();
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$column['primary'] = true;
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$joinTableOptions['primary'][] = $joinColumn['name'];
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$column['name'] = $mapping->getQuotedJoinColumnName($joinColumn['name'], $this->_platform);
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$column['type'] = Type::getType($class->getTypeOfColumn($joinColumn['referencedColumnName']));
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$joinTableColumns[$column['name']] = $column;
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$constraint1['local'][] = $column['name'];
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$constraint1['foreign'][] = $joinColumn['referencedColumnName'];
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if (isset($joinColumn['onUpdate'])) {
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$constraint1['onUpdate'] = $joinColumn['onUpdate'];
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}
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if (isset($joinColumn['onDelete'])) {
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$constraint1['onDelete'] = $joinColumn['onDelete'];
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}
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}
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$constraints[] = $constraint1;
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// Build second FK constraint (relation table => target table)
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$constraint2 = array();
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$constraint2['tableName'] = $mapping->getQuotedJoinTableName($this->_platform);
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$constraint2['foreignTable'] = $foreignClass->getQuotedTableName($this->_platform);
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$constraint2['local'] = array();
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$constraint2['foreign'] = array();
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foreach ($joinTable['inverseJoinColumns'] as $inverseJoinColumn) {
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$column = array();
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$column['primary'] = true;
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$joinTableOptions['primary'][] = $inverseJoinColumn['name'];
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$column['name'] = $inverseJoinColumn['name'];
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$column['type'] = Type::getType($this->_em->getClassMetadata($mapping->getTargetEntityName())
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->getTypeOfColumn($inverseJoinColumn['referencedColumnName']));
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$joinTableColumns[$inverseJoinColumn['name']] = $column;
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$constraint2['local'][] = $inverseJoinColumn['name'];
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$constraint2['foreign'][] = $inverseJoinColumn['referencedColumnName'];
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if (isset($inverseJoinColumn['onUpdate'])) {
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$constraint2['onUpdate'] = $inverseJoinColumn['onUpdate'];
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}
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if (isset($joinColumn['onDelete'])) {
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$constraint2['onDelete'] = $inverseJoinColumn['onDelete'];
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}
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}
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$constraints[] = $constraint2;
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// Get the SQL for creating the join table and merge it with the others
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$sql = array_merge($sql, $this->_platform->getCreateTableSql(
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$mapping->getQuotedJoinTableName($this->_platform), $joinTableColumns, $joinTableOptions)
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);
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}
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}
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}
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/**
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* Drops the database schema for the given classes.
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*
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* @param array $classes
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* @return void
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*/
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public function dropSchema(array $classes)
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{
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$dropSchemaSql = $this->getDropSchemaSql($classes);
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$conn = $this->_em->getConnection();
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foreach ($dropSchemaSql as $sql) {
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$conn->execute($sql);
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}
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}
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/**
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* Gets the SQL needed to drop the database schema for the given classes.
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*
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* @param array $classes
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* @return array
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*/
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public function getDropSchemaSql(array $classes)
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{
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$sql = array();
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$commitOrder = $this->_getCommitOrder($classes);
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$associationTables = $this->_getAssociationTables($commitOrder);
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// Drop association tables first
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foreach ($associationTables as $associationTable) {
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$sql[] = $this->_platform->getDropTableSql($associationTable);
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}
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// Drop tables in reverse commit order
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for ($i = count($commitOrder) - 1; $i >= 0; --$i) {
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$class = $commitOrder[$i];
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if ($class->isInheritanceTypeSingleTable() && $class->name != $class->rootEntityName) {
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continue;
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}
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$sql[] = $this->_platform->getDropTableSql($class->getTableName());
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}
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//TODO: Drop other schema elements, like sequences etc.
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return $sql;
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}
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/**
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* Updates the database schema of the given classes by comparing the ClassMetadata
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* instances to the current database schema that is inspected.
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*
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* @param array $classes
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* @return void
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*/
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public function updateSchema(array $classes)
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{
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$updateSchemaSql = $this->getUpdateSchemaSql($classes);
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$conn = $this->_em->getConnection();
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foreach ($updateSchemaSql as $sql) {
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$conn->execute($sql);
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}
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}
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/**
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* Gets the sequence of SQL statements that need to be performed in order
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* to bring the given class mappings in-synch with the relational schema.
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*
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* @param array $classes The classes to consider.
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* @return array The sequence of SQL statements.
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*/
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public function getUpdateSchemaSql(array $classes)
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{
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$sql = array();
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$conn = $this->_em->getConnection();
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$sm = $conn->getSchemaManager();
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$tables = $sm->listTables();
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$newClasses = array();
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foreach ($classes as $class) {
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$tableName = $class->getTableName();
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$tableExists = false;
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foreach ($tables as $index => $table) {
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if ($tableName == $table) {
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$tableExists = true;
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unset($tables[$index]);
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break;
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}
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}
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if ( ! $tableExists) {
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$newClasses[] = $class;
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} else {
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$newFields = array();
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$updateFields = array();
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$dropIndexes = array();
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$newJoinColumns = array();
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$currentColumns = $sm->listTableColumns($tableName);
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foreach ($class->fieldMappings as $fieldName => $fieldMapping) {
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$exists = false;
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foreach ($currentColumns as $index => $column) {
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if ($column['name'] == $fieldMapping['columnName']) {
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// Column exists, check for changes
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$columnInfo = $column;
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$columnChanged = false;
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|
|
echo $column['name'] . ' ';
|
|
|
|
// 1. check for nullability change
|
|
$columnInfo['notnull'] = ( ! isset($columnInfo['notnull']))
|
|
? false : $columnInfo['notnull'];
|
|
$notnull = ! $class->isNullable($fieldName);
|
|
|
|
if ($columnInfo['notnull'] != $notnull) {
|
|
$columnInfo['notnull'] = $notnull;
|
|
$columnChanged = true;
|
|
}
|
|
|
|
unset($notnull);
|
|
|
|
// 2. check for uniqueness change
|
|
$columnInfo['unique'] = ( ! isset($columnInfo['unique']))
|
|
? false : $columnInfo['unique'];
|
|
$unique = $class->isUniqueField($fieldName);
|
|
|
|
if ($columnInfo['unique'] != $unique) {
|
|
// We need to call a special DROP INDEX if it was defined
|
|
if ($columnInfo['unique']) {
|
|
$dropIndexes[] = $column['name'];
|
|
}
|
|
|
|
$columnInfo['unique'] = $unique;
|
|
$columnChanged = true;
|
|
}
|
|
|
|
unset($unique);
|
|
|
|
// 3. check for type change
|
|
$type = Type::getType($fieldMapping['type']);
|
|
|
|
if ($columnInfo['type'] != $type) {
|
|
$columnInfo['type'] = $type;
|
|
$columnChanged = true;
|
|
}
|
|
|
|
unset($type);
|
|
|
|
// 4. check for length change
|
|
// 5. check for scale and precision change
|
|
/*if (isset($fieldMapping['scale'])) {
|
|
$columnInfo['length'] = $fieldMapping['precision'];
|
|
$columnInfo['scale'] = $fieldMapping['scale'];
|
|
} else {
|
|
$columnInfo['length'] = $fieldMapping['length'];
|
|
}*/
|
|
|
|
// 6. check for flexible and fixed length
|
|
$fieldMapping['fixed'] = ( ! isset($fieldMapping['fixed']))
|
|
? false : $fieldMapping['fixed'];
|
|
|
|
if ($columnInfo['fixed'] != $fieldMapping['fixed']) {
|
|
$columnInfo['fixed'] = $fieldMapping['fixed'];
|
|
$columnChanged = true;
|
|
}
|
|
|
|
// Only add to column changed list if it was actually changed
|
|
if ($columnChanged) {
|
|
$updateFields[] = $columnInfo;
|
|
}
|
|
|
|
unset($currentColumns[$index]);
|
|
$exists = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ( ! $exists) {
|
|
$newFields[] = $fieldMapping;
|
|
}
|
|
}
|
|
|
|
foreach ($class->associationMappings as $assoc) {
|
|
if ($assoc->isOwningSide && $assoc->isOneToOne()) {
|
|
foreach ($assoc->targetToSourceKeyColumns as $targetColumn => $sourceColumn) {
|
|
$exists = false;
|
|
|
|
foreach ($currentColumns as $index => $column) {
|
|
if ($column['name'] == $sourceColumn) {
|
|
// Column exists, check for changes
|
|
|
|
// 1. check for nullability change
|
|
|
|
unset($currentColumns[$index]);
|
|
$exists = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ( ! $exists) {
|
|
$newJoinColumns[$sourceColumn] = array(
|
|
'name' => $sourceColumn,
|
|
'type' => 'integer' //FIXME!!!
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Drop indexes
|
|
if ($dropIndexes) {
|
|
foreach ($dropIndexes as $dropIndex) {
|
|
$sql[] = $this->_platform->getDropIndexSql($tableName, $dropIndex);
|
|
}
|
|
}
|
|
|
|
// Create new columns
|
|
if ($newFields || $newJoinColumns) {
|
|
$changes = array();
|
|
|
|
foreach ($newFields as $newField) {
|
|
$options = array();
|
|
$changes['add'][$newField['columnName']] = $this->_gatherColumn($class, $newField, $options);
|
|
}
|
|
|
|
foreach ($newJoinColumns as $name => $joinColumn) {
|
|
$changes['add'][$name] = $joinColumn;
|
|
}
|
|
|
|
$sql[] = $this->_platform->getAlterTableSql($tableName, $changes);
|
|
}
|
|
|
|
// Update existent columns
|
|
if ($updateFields) {
|
|
$changes = array();
|
|
|
|
foreach ($updateFields as $updateField) {
|
|
// Now we pick the Type instance
|
|
$changes['change'][$updateField['name']] = array(
|
|
'definition' => $updateField
|
|
);
|
|
}
|
|
|
|
$sql[] = $this->_platform->getAlterTableSql($tableName, $changes);
|
|
}
|
|
|
|
// Drop any remaining columns
|
|
if ($currentColumns) {
|
|
$changes = array();
|
|
|
|
foreach ($currentColumns as $column) {
|
|
$options = array();
|
|
$changes['remove'][$column['name']] = $column;
|
|
}
|
|
|
|
$sql[] = $this->_platform->getAlterTableSql($tableName, $changes);
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($newClasses) {
|
|
$sql = array_merge($this->getCreateSchemaSql($newClasses), $sql);
|
|
}
|
|
|
|
// Drop any remaining tables (Probably not a good idea, because the given class list
|
|
// may not be complete!)
|
|
/*if ($tables) {
|
|
foreach ($tables as $table) {
|
|
$sql[] = $this->_platform->getDropTableSql($table);
|
|
}
|
|
}*/
|
|
|
|
return $sql;
|
|
}
|
|
|
|
private function _getCommitOrder(array $classes)
|
|
{
|
|
$calc = new CommitOrderCalculator;
|
|
|
|
// Calculate dependencies
|
|
foreach ($classes as $class) {
|
|
$calc->addClass($class);
|
|
|
|
foreach ($class->associationMappings as $assoc) {
|
|
if ($assoc->isOwningSide) {
|
|
$targetClass = $this->_em->getClassMetadata($assoc->targetEntityName);
|
|
|
|
if ( ! $calc->hasClass($targetClass->name)) {
|
|
$calc->addClass($targetClass);
|
|
}
|
|
|
|
// add dependency ($targetClass before $class)
|
|
$calc->addDependency($targetClass, $class);
|
|
}
|
|
}
|
|
}
|
|
|
|
return $calc->getCommitOrder();
|
|
}
|
|
|
|
private function _getAssociationTables(array $classes)
|
|
{
|
|
$associationTables = array();
|
|
|
|
foreach ($classes as $class) {
|
|
foreach ($class->associationMappings as $assoc) {
|
|
if ($assoc->isOwningSide && $assoc->isManyToMany()) {
|
|
$associationTables[] = $assoc->joinTable['name'];
|
|
}
|
|
}
|
|
}
|
|
|
|
return $associationTables;
|
|
}
|
|
}
|