416 lines
15 KiB
PHP
416 lines
15 KiB
PHP
<?php
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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 MIT license. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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namespace Doctrine\ORM\Mapping\Driver;
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use Doctrine\DBAL\Schema\AbstractSchemaManager,
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Doctrine\DBAL\Schema\SchemaException,
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Doctrine\Common\Persistence\Mapping\Driver\MappingDriver,
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Doctrine\Common\Persistence\Mapping\ClassMetadata,
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Doctrine\ORM\Mapping\ClassMetadataInfo,
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Doctrine\Common\Util\Inflector,
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Doctrine\ORM\Mapping\MappingException;
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/**
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* The DatabaseDriver reverse engineers the mapping metadata from a database.
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*
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*
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* @link www.doctrine-project.org
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* @since 2.0
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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 Benjamin Eberlei <kontakt@beberlei.de>
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*/
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class DatabaseDriver implements MappingDriver
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{
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/**
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* @var AbstractSchemaManager
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*/
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private $_sm;
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/**
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* @var array
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*/
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private $tables = null;
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private $classToTableNames = array();
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/**
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* @var array
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*/
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private $manyToManyTables = array();
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/**
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* @var array
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*/
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private $classNamesForTables = array();
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/**
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* @var array
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*/
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private $fieldNamesForColumns = array();
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/**
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* The namespace for the generated entities.
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*
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* @var string
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*/
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private $namespace;
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/**
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*
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* @param AbstractSchemaManager $schemaManager
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*/
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public function __construct(AbstractSchemaManager $schemaManager)
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{
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$this->_sm = $schemaManager;
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}
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/**
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* Set tables manually instead of relying on the reverse engeneering capabilities of SchemaManager.
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*
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* @param array $entityTables
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* @param array $manyToManyTables
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* @return void
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*/
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public function setTables($entityTables, $manyToManyTables)
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{
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$this->tables = $this->manyToManyTables = $this->classToTableNames = array();
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foreach ($entityTables as $table) {
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$className = $this->getClassNameForTable($table->getName());
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$this->classToTableNames[$className] = $table->getName();
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$this->tables[$table->getName()] = $table;
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}
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foreach ($manyToManyTables as $table) {
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$this->manyToManyTables[$table->getName()] = $table;
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}
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}
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private function reverseEngineerMappingFromDatabase()
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{
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if ($this->tables !== null) {
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return;
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}
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$tables = array();
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foreach ($this->_sm->listTableNames() as $tableName) {
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$tables[$tableName] = $this->_sm->listTableDetails($tableName);
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}
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$this->tables = $this->manyToManyTables = $this->classToTableNames = array();
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foreach ($tables as $tableName => $table) {
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/* @var $table \Doctrine\DBAL\Schema\Table */
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if ($this->_sm->getDatabasePlatform()->supportsForeignKeyConstraints()) {
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$foreignKeys = $table->getForeignKeys();
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} else {
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$foreignKeys = array();
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}
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$allForeignKeyColumns = array();
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foreach ($foreignKeys as $foreignKey) {
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$allForeignKeyColumns = array_merge($allForeignKeyColumns, $foreignKey->getLocalColumns());
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}
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if ( ! $table->hasPrimaryKey()) {
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throw new MappingException(
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"Table " . $table->getName() . " has no primary key. Doctrine does not ".
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"support reverse engineering from tables that don't have a primary key."
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);
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}
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$pkColumns = $table->getPrimaryKey()->getColumns();
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sort($pkColumns);
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sort($allForeignKeyColumns);
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if ($pkColumns == $allForeignKeyColumns && count($foreignKeys) == 2) {
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$this->manyToManyTables[$tableName] = $table;
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} else {
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// lower-casing is necessary because of Oracle Uppercase Tablenames,
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// assumption is lower-case + underscore separated.
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$className = $this->getClassNameForTable($tableName);
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$this->tables[$tableName] = $table;
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$this->classToTableNames[$className] = $tableName;
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}
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}
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}
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/**
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* {@inheritDoc}
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*/
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public function loadMetadataForClass($className, ClassMetadata $metadata)
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{
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$this->reverseEngineerMappingFromDatabase();
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if (!isset($this->classToTableNames[$className])) {
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throw new \InvalidArgumentException("Unknown class " . $className);
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}
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$tableName = $this->classToTableNames[$className];
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$metadata->name = $className;
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$metadata->table['name'] = $tableName;
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$columns = $this->tables[$tableName]->getColumns();
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$indexes = $this->tables[$tableName]->getIndexes();
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try {
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$primaryKeyColumns = $this->tables[$tableName]->getPrimaryKey()->getColumns();
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} catch(SchemaException $e) {
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$primaryKeyColumns = array();
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}
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if ($this->_sm->getDatabasePlatform()->supportsForeignKeyConstraints()) {
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$foreignKeys = $this->tables[$tableName]->getForeignKeys();
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} else {
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$foreignKeys = array();
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}
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$allForeignKeyColumns = array();
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foreach ($foreignKeys as $foreignKey) {
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$allForeignKeyColumns = array_merge($allForeignKeyColumns, $foreignKey->getLocalColumns());
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}
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$ids = array();
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$fieldMappings = array();
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foreach ($columns as $column) {
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$fieldMapping = array();
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if (in_array($column->getName(), $allForeignKeyColumns)) {
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continue;
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} else if ($primaryKeyColumns && in_array($column->getName(), $primaryKeyColumns)) {
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$fieldMapping['id'] = true;
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}
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$fieldMapping['fieldName'] = $this->getFieldNameForColumn($tableName, $column->getName(), false);
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$fieldMapping['columnName'] = $column->getName();
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$fieldMapping['type'] = strtolower((string) $column->getType());
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if ($column->getType() instanceof \Doctrine\DBAL\Types\StringType) {
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$fieldMapping['length'] = $column->getLength();
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$fieldMapping['fixed'] = $column->getFixed();
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} else if ($column->getType() instanceof \Doctrine\DBAL\Types\IntegerType) {
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$fieldMapping['unsigned'] = $column->getUnsigned();
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}
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$fieldMapping['nullable'] = $column->getNotNull() ? false : true;
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if (isset($fieldMapping['id'])) {
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$ids[] = $fieldMapping;
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} else {
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$fieldMappings[] = $fieldMapping;
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}
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}
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if ($ids) {
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if (count($ids) == 1) {
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$metadata->setIdGeneratorType(ClassMetadataInfo::GENERATOR_TYPE_AUTO);
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}
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foreach ($ids as $id) {
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$metadata->mapField($id);
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}
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}
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foreach ($fieldMappings as $fieldMapping) {
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$metadata->mapField($fieldMapping);
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}
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foreach ($this->manyToManyTables as $manyTable) {
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foreach ($manyTable->getForeignKeys() as $foreignKey) {
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// foreign key maps to the table of the current entity, many to many association probably exists
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if (strtolower($tableName) == strtolower($foreignKey->getForeignTableName())) {
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$myFk = $foreignKey;
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$otherFk = null;
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foreach ($manyTable->getForeignKeys() as $foreignKey) {
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if ($foreignKey != $myFk) {
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$otherFk = $foreignKey;
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break;
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}
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}
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if (!$otherFk) {
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// the definition of this many to many table does not contain
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// enough foreign key information to continue reverse engeneering.
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continue;
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}
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$localColumn = current($myFk->getColumns());
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$associationMapping = array();
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$associationMapping['fieldName'] = $this->getFieldNameForColumn($manyTable->getName(), current($otherFk->getColumns()), true);
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$associationMapping['targetEntity'] = $this->getClassNameForTable($otherFk->getForeignTableName());
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if (current($manyTable->getColumns())->getName() == $localColumn) {
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$associationMapping['inversedBy'] = $this->getFieldNameForColumn($manyTable->getName(), current($myFk->getColumns()), true);
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$associationMapping['joinTable'] = array(
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'name' => strtolower($manyTable->getName()),
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'joinColumns' => array(),
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'inverseJoinColumns' => array(),
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);
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$fkCols = $myFk->getForeignColumns();
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$cols = $myFk->getColumns();
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for ($i = 0; $i < count($cols); $i++) {
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$associationMapping['joinTable']['joinColumns'][] = array(
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'name' => $cols[$i],
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'referencedColumnName' => $fkCols[$i],
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);
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}
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$fkCols = $otherFk->getForeignColumns();
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$cols = $otherFk->getColumns();
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for ($i = 0; $i < count($cols); $i++) {
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$associationMapping['joinTable']['inverseJoinColumns'][] = array(
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'name' => $cols[$i],
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'referencedColumnName' => $fkCols[$i],
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);
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}
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} else {
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$associationMapping['mappedBy'] = $this->getFieldNameForColumn($manyTable->getName(), current($myFk->getColumns()), true);
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}
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$metadata->mapManyToMany($associationMapping);
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break;
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}
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}
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}
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foreach ($foreignKeys as $foreignKey) {
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$foreignTable = $foreignKey->getForeignTableName();
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$cols = $foreignKey->getColumns();
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$fkCols = $foreignKey->getForeignColumns();
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$localColumn = current($cols);
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$associationMapping = array();
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$associationMapping['fieldName'] = $this->getFieldNameForColumn($tableName, $localColumn, true);
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$associationMapping['targetEntity'] = $this->getClassNameForTable($foreignTable);
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if (isset($metadata->fieldMappings[$associationMapping['fieldName']])) {
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$associationMapping['fieldName'] = $associationMapping['fieldName'] . "2";
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}
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if ($primaryKeyColumns && in_array($localColumn, $primaryKeyColumns)) {
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$associationMapping['id'] = true;
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}
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for ($i = 0; $i < count($cols); $i++) {
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$associationMapping['joinColumns'][] = array(
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'name' => $cols[$i],
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'referencedColumnName' => $fkCols[$i],
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);
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}
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//Here we need to check if $cols are the same as $primaryKeyColums
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if (!array_diff($cols,$primaryKeyColumns)) {
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$metadata->mapOneToOne($associationMapping);
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} else {
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$metadata->mapManyToOne($associationMapping);
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}
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}
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}
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/**
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* {@inheritDoc}
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*/
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public function isTransient($className)
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{
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return true;
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}
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/**
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* {@inheritDoc}
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*/
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public function getAllClassNames()
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{
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$this->reverseEngineerMappingFromDatabase();
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return array_keys($this->classToTableNames);
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}
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/**
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* Set class name for a table.
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*
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* @param string $tableName
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* @param string $className
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* @return void
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*/
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public function setClassNameForTable($tableName, $className)
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{
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$this->classNamesForTables[$tableName] = $className;
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}
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/**
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* Set field name for a column on a specific table.
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*
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* @param string $tableName
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* @param string $columnName
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* @param string $fieldName
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* @return void
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*/
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public function setFieldNameForColumn($tableName, $columnName, $fieldName)
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{
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$this->fieldNamesForColumns[$tableName][$columnName] = $fieldName;
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}
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/**
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* Return the mapped class name for a table if it exists. Otherwise return "classified" version.
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*
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* @param string $tableName
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* @return string
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*/
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private function getClassNameForTable($tableName)
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{
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if (isset($this->classNamesForTables[$tableName])) {
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return $this->namespace . $this->classNamesForTables[$tableName];
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}
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return $this->namespace . Inflector::classify(strtolower($tableName));
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}
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/**
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* Return the mapped field name for a column, if it exists. Otherwise return camelized version.
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*
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* @param string $tableName
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* @param string $columnName
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* @param boolean $fk Whether the column is a foreignkey or not.
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* @return string
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*/
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private function getFieldNameForColumn($tableName, $columnName, $fk = false)
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{
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if (isset($this->fieldNamesForColumns[$tableName]) && isset($this->fieldNamesForColumns[$tableName][$columnName])) {
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return $this->fieldNamesForColumns[$tableName][$columnName];
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}
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$columnName = strtolower($columnName);
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// Replace _id if it is a foreignkey column
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if ($fk) {
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$columnName = str_replace('_id', '', $columnName);
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}
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return Inflector::camelize($columnName);
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}
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/**
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* Set the namespace for the generated entities.
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*
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* @param string $namespace
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* @return void
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*/
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public function setNamespace($namespace)
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{
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$this->namespace = $namespace;
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}
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}
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