PHP ForeignKey::setOnUpdate方法代码示例

 protected function relateI18nTableToMainTable()
 {
     $table = $this->getTable();
     $i18nTable = $this->i18nTable;
     $pks = $this->getTable()->getPrimaryKey();
     if (count($pks) > 1) {
         throw new EngineException('The i18n behavior does not support tables with composite primary keys');
     }
     foreach ($pks as $column) {
         if (!$i18nTable->hasColumn($column->getName())) {
             $column = clone $column;
             $column->setAutoIncrement(false);
             $i18nTable->addColumn($column);
         }
     }
     if (in_array($table->getName(), $i18nTable->getForeignTableNames())) {
         return;
     }
     $fk = new ForeignKey();
     $fk->setForeignTableCommonName($table->getCommonName());
     $fk->setForeignSchemaName($table->getSchema());
     $fk->setDefaultJoin('LEFT JOIN');
     $fk->setOnDelete(ForeignKey::CASCADE);
     $fk->setOnUpdate(ForeignKey::NONE);
     foreach ($pks as $column) {
         $fk->addReference($column->getName(), $column->getName());
     }
     $i18nTable->addForeignKey($fk);
 }

 protected function addClosureColumn($name, Table $ct_table, Column $column)
 {
     $table = $this->getTable();
     $id_fieldname = $column->getName();
     $domain = $column->getDomain();
     if (!$ct_table->hasColumn($name)) {
         $column = new Column($name);
         $column->setDomain($domain);
         $column->setPrimaryKey(true);
         $ct_table->addColumn($column);
     } else {
         $column = $ct_table->getColumn($name);
     }
     $ct_tablename_normalized = str_replace('_', '', $ct_table->getName());
     $fk_name = $ct_tablename_normalized . '_' . $name . '_fk';
     if (!$ct_table->getColumnForeignKeys($name)) {
         $column_fk = new ForeignKey($fk_name);
         $column_fk->addReference($name, $table->getColumn($id_fieldname)->getName());
         $column_fk->setForeignTableCommonName($table->getName());
         $column_fk->setOnUpdate('cascade');
         $column_fk->setOnDelete('restrict');
         $ct_table->addForeignKey($column_fk);
     }
     $column_idx_name = $fk_name . '_idx';
     if (!$ct_table->hasIndex($column_idx_name)) {
         $column_idx = new Index($column_idx_name);
         $column_idx->addColumn(['name' => $column->getName()]);
         $ct_table->addIndex($column_idx);
     }
 }

 /**
  * Adds all columns, indexes, constraints and additional tables.
  */
 public function modifyTable()
 {
     $table = $this->getTable();
     $tableName = $table->getName();
     $foreignTableName = $this->getForeignTable();
     // enable reload on insert to force the model to load the trigger generated id(s)
     $table->setReloadOnInsert(true);
     $foreignIdColumnName = $foreignTableName . '_id';
     $compositeKeyColumnName = $foreignTableName . '_' . $tableName . '_id';
     if ($table->hasBehavior('concrete_inheritance')) {
         // we're a child in a concrete inheritance
         $parentTableName = $table->getBehavior('concrete_inheritance')->getParameter('extends');
         $parentTable = $table->getDatabase()->getTable($parentTableName);
         if ($parentTable->hasBehavior('\\' . __CLASS__)) {
             //we're a child of a concrete inheritance structure, so we're going to skip this
             //round here because this behavior has also been attached by the parent table.
             return;
         }
     }
     if ($table->hasColumn($foreignIdColumnName)) {
         $foreignIdColumn = $table->getColumn($foreignIdColumnName);
     } else {
         $foreignIdColumn = $table->addColumn(array('name' => $foreignIdColumnName, 'type' => 'integer', 'required' => true));
         $compositeKeyForeignKeyName = $tableName . '_FK_' . $foreignIdColumnName;
         $foreignKey = new ForeignKey($compositeKeyForeignKeyName);
         $foreignKey->addReference($foreignIdColumnName, 'id');
         $foreignKey->setForeignTableCommonName($foreignTableName);
         $foreignKey->setOnUpdate(ForeignKey::CASCADE);
         $foreignKey->setOnDelete(ForeignKey::CASCADE);
         $table->addForeignKey($foreignKey);
     }
     if ($table->hasColumn($compositeKeyColumnName)) {
         $compositeKeyColumn = $table->getColumn($compositeKeyColumnName);
     } else {
         $compositeKeyColumn = $table->addColumn(array('name' => $compositeKeyColumnName, 'type' => 'integer', 'required' => false));
     }
     $index = new Unique($tableName . '_UQ_' . $foreignIdColumnName . '_' . $compositeKeyColumnName);
     $index->addColumn($foreignIdColumn);
     $index->addColumn($compositeKeyColumn);
     $table->addUnique($index);
     $database = $table->getDatabase();
     $sequenceTableName = sprintf('%s_sequence', $foreignTableName);
     if (!$database->hasTable($sequenceTableName)) {
         $sequenceTable = $database->addTable(array('name' => $sequenceTableName, 'package' => $table->getPackage(), 'schema' => $table->getSchema(), 'namespace' => $table->getNamespace() ? '\\' . $table->getNamespace() : null, 'skipSql' => $table->isSkipSql()));
         $sequenceTable->addColumn(array('name' => 'table_name', 'type' => 'varchar', 'size' => 32, 'required' => true, 'primaryKey' => true));
         $sequenceTable->addColumn(array('name' => $foreignIdColumnName, 'type' => 'integer', 'required' => true, 'primaryKey' => true));
         $sequenceTable->addColumn(array('name' => $foreignTableName . '_max_sequence_id', 'type' => 'integer', 'required' => false, 'default' => null));
     }
 }

 protected function relateDelegateToMainTable($delegateTable, $mainTable)
 {
     $pks = $mainTable->getPrimaryKey();
     foreach ($pks as $column) {
         $mainColumnName = $column->getName();
         if (!$delegateTable->hasColumn($mainColumnName)) {
             $column = clone $column;
             $column->setAutoIncrement(false);
             $delegateTable->addColumn($column);
         }
     }
     // Add a one-to-one fk
     $fk = new ForeignKey();
     $fk->setForeignTableCommonName($mainTable->getCommonName());
     $fk->setForeignSchemaName($mainTable->getSchema());
     $fk->setDefaultJoin('LEFT JOIN');
     $fk->setOnDelete(ForeignKey::CASCADE);
     $fk->setOnUpdate(ForeignKey::NONE);
     foreach ($pks as $column) {
         $fk->addReference($column->getName(), $column->getName());
     }
     $delegateTable->addForeignKey($fk);
 }

 protected function addForeignKeys(Table $table)
 {
     $database = $table->getDatabase();
     $stmt = $this->dbh->query('PRAGMA foreign_key_list("' . $table->getName() . '")');
     $lastId = null;
     while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
         if ($lastId !== $row['id']) {
             $fk = new ForeignKey();
             $onDelete = $row['on_delete'];
             if ($onDelete && 'NO ACTION' !== $onDelete) {
                 $fk->setOnDelete($onDelete);
             }
             $onUpdate = $row['on_update'];
             if ($onUpdate && 'NO ACTION' !== $onUpdate) {
                 $fk->setOnUpdate($onUpdate);
             }
             $foreignTable = $database->getTable($row['table'], true);
             if (!$foreignTable) {
                 continue;
             }
             $table->addForeignKey($fk);
             $fk->setForeignTableCommonName($foreignTable->getCommonName());
             if ($table->guessSchemaName() != $foreignTable->guessSchemaName()) {
                 $fk->setForeignSchemaName($foreignTable->guessSchemaName());
             }
             $lastId = $row['id'];
         }
         $fk->addReference($row['from'], $row['to']);
     }
 }

 /**
  * Load foreign keys for this table.
  *
  * @param Table $table The Table model class to add FKs to
  */
 protected function addForeignKeys(Table $table)
 {
     // local store to avoid duplicates
     $foreignKeys = array();
     /* @var StatementInterface $stmt */
     $stmt = $this->dbh->query("SELECT CONSTRAINT_NAME, DELETE_RULE, R_CONSTRAINT_NAME FROM USER_CONSTRAINTS WHERE CONSTRAINT_TYPE = 'R' AND TABLE_NAME = '" . $table->getName() . "'");
     while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
         // Local reference
         /* @var StatementInterface $stmt2 */
         $stmt2 = $this->dbh->query("SELECT COLUMN_NAME FROM USER_CONS_COLUMNS WHERE CONSTRAINT_NAME = '" . $row['CONSTRAINT_NAME'] . "' AND TABLE_NAME = '" . $table->getName() . "'");
         $localReferenceInfo = $stmt2->fetch(\PDO::FETCH_ASSOC);
         // Foreign reference
         $stmt2 = $this->dbh->query("SELECT TABLE_NAME, COLUMN_NAME FROM USER_CONS_COLUMNS WHERE CONSTRAINT_NAME = '" . $row['R_CONSTRAINT_NAME'] . "'");
         $foreignReferenceInfo = $stmt2->fetch(\PDO::FETCH_ASSOC);
         if (!isset($foreignKeys[$row['CONSTRAINT_NAME']])) {
             $fk = new ForeignKey($row['CONSTRAINT_NAME']);
             $fk->setForeignTableCommonName($foreignReferenceInfo['TABLE_NAME']);
             $onDelete = 'NO ACTION' === $row['DELETE_RULE'] ? 'NONE' : $row['DELETE_RULE'];
             $fk->setOnDelete($onDelete);
             $fk->setOnUpdate($onDelete);
             $fk->addReference(array('local' => $localReferenceInfo['COLUMN_NAME'], 'foreign' => $foreignReferenceInfo['COLUMN_NAME']));
             $table->addForeignKey($fk);
             $foreignKeys[$row['CONSTRAINT_NAME']] = $fk;
         }
     }
 }

 public function modifyTable()
 {
     $table = $this->getTable();
     $parentTable = $this->getParentTable();
     if ($this->isCopyData()) {
         // tell the parent table that it has a descendant
         if (!$parentTable->hasBehavior('concrete_inheritance_parent')) {
             $parentBehavior = new ConcreteInheritanceParentBehavior();
             $parentBehavior->setName('concrete_inheritance_parent');
             $parentBehavior->addParameter(array('name' => 'descendant_column', 'value' => $this->getParameter('descendant_column')));
             $parentTable->addBehavior($parentBehavior);
             // The parent table's behavior modifyTable() must be executed before this one
             $parentBehavior->getTableModifier()->modifyTable();
             $parentBehavior->setTableModified(true);
         }
     }
     // Add the columns of the parent table
     foreach ($parentTable->getColumns() as $column) {
         if ($column->getName() == $this->getParameter('descendant_column')) {
             continue;
         }
         if ($table->hasColumn($column->getName())) {
             continue;
         }
         $copiedColumn = clone $column;
         if ($column->isAutoIncrement() && $this->isCopyData()) {
             $copiedColumn->setAutoIncrement(false);
         }
         $table->addColumn($copiedColumn);
         if ($column->isPrimaryKey() && $this->isCopyData()) {
             $fk = new ForeignKey();
             $fk->setForeignTableCommonName($column->getTable()->getCommonName());
             $fk->setForeignSchemaName($column->getTable()->getSchema());
             $fk->setOnDelete('CASCADE');
             $fk->setOnUpdate(null);
             $fk->addReference($copiedColumn, $column);
             $fk->isParentChild = true;
             $table->addForeignKey($fk);
         }
     }
     // add the foreign keys of the parent table
     foreach ($parentTable->getForeignKeys() as $fk) {
         $copiedFk = clone $fk;
         $copiedFk->setName('');
         $copiedFk->setRefPhpName('');
         $this->getTable()->addForeignKey($copiedFk);
     }
     // add the indices of the parent table
     foreach ($parentTable->getIndices() as $index) {
         $copiedIndex = clone $index;
         $copiedIndex->setName('');
         $this->getTable()->addIndex($copiedIndex);
     }
     // add the unique indices of the parent table
     foreach ($parentTable->getUnices() as $unique) {
         $copiedUnique = clone $unique;
         $copiedUnique->setName('');
         $this->getTable()->addUnique($copiedUnique);
     }
     // add the Behaviors of the parent table
     foreach ($parentTable->getBehaviors() as $behavior) {
         if ($behavior->getName() == 'concrete_inheritance_parent' || $behavior->getName() == 'concrete_inheritance') {
             continue;
         }
         //validate behavior. If validate behavior already exists, clone only rules from parent
         if ('validate' === $behavior->getName() && $table->hasBehavior('validate')) {
             $table->getBehavior('validate')->mergeParameters($behavior->getParameters());
             continue;
         }
         $copiedBehavior = clone $behavior;
         $copiedBehavior->setTableModified(false);
         $this->getTable()->addBehavior($copiedBehavior);
     }
 }

 protected function addVersionTable()
 {
     $table = $this->getTable();
     $database = $table->getDatabase();
     $versionTableName = $this->getParameter('version_table') ? $this->getParameter('version_table') : $table->getName() . '_version';
     if (!$database->hasTable($versionTableName)) {
         // create the version table
         $versionTable = $database->addTable(array('name' => $versionTableName, 'phpName' => $this->getVersionTablePhpName(), 'package' => $table->getPackage(), 'schema' => $table->getSchema(), 'namespace' => $table->getNamespace() ? '\\' . $table->getNamespace() : null, 'skipSql' => $table->isSkipSql()));
         $versionTable->isVersionTable = true;
         // every behavior adding a table should re-execute database behaviors
         foreach ($database->getBehaviors() as $behavior) {
             $behavior->modifyDatabase();
         }
         // copy all the columns
         foreach ($table->getColumns() as $column) {
             $columnInVersionTable = clone $column;
             $columnInVersionTable->clearInheritanceList();
             if ($columnInVersionTable->hasReferrers()) {
                 $columnInVersionTable->clearReferrers();
             }
             if ($columnInVersionTable->isAutoincrement()) {
                 $columnInVersionTable->setAutoIncrement(false);
             }
             $versionTable->addColumn($columnInVersionTable);
         }
         // create the foreign key
         $fk = new ForeignKey();
         $fk->setForeignTableCommonName($table->getCommonName());
         $fk->setForeignSchemaName($table->getSchema());
         $fk->setOnDelete('CASCADE');
         $fk->setOnUpdate(null);
         $tablePKs = $table->getPrimaryKey();
         foreach ($versionTable->getPrimaryKey() as $key => $column) {
             $fk->addReference($column, $tablePKs[$key]);
         }
         $versionTable->addForeignKey($fk);
         // add the version column to the primary key
         $versionColumn = $versionTable->getColumn($this->getParameter('version_column'));
         $versionColumn->setNotNull(true);
         $versionColumn->setPrimaryKey(true);
         $this->versionTable = $versionTable;
     } else {
         $this->versionTable = $database->getTable($versionTableName);
     }
 }

 /**
  * Load foreign keys for this table.
  */
 protected function addForeignKeys(Table $table, $oid)
 {
     $database = $table->getDatabase();
     $stmt = $this->dbh->prepare("SELECT\n            conname,\n            confupdtype,\n            confdeltype,\n            CASE nl.nspname WHEN 'public' THEN cl.relname ELSE nl.nspname||'.'||cl.relname END as fktab,\n                array_agg(DISTINCT a2.attname) AS fkcols,\n                CASE nr.nspname WHEN 'public' THEN cr.relname ELSE nr.nspname||'.'||cr.relname END as reftab,\n                    array_agg(DISTINCT a1.attname) AS refcols\n                    FROM pg_constraint ct\n                    JOIN pg_class cl ON cl.oid=conrelid\n                    JOIN pg_class cr ON cr.oid=confrelid\n                    JOIN pg_namespace nl ON nl.oid = cl.relnamespace\n                    JOIN pg_namespace nr ON nr.oid = cr.relnamespace\n                    LEFT JOIN pg_catalog.pg_attribute a1 ON a1.attrelid = ct.confrelid\n                    LEFT JOIN pg_catalog.pg_attribute a2 ON a2.attrelid = ct.conrelid\n                    WHERE\n                    contype='f'\n                    AND conrelid = ?\n                    AND a2.attnum = ANY (ct.conkey)\n                    AND a1.attnum = ANY (ct.confkey)\n                    GROUP BY conname, confupdtype, confdeltype, fktab, reftab\n                    ORDER BY conname");
     $stmt->bindValue(1, $oid);
     $stmt->execute();
     $foreignKeys = array();
     while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
         $name = $row['conname'];
         $localTable = $row['fktab'];
         $localColumns = explode(',', trim($row['fkcols'], '{}'));
         $foreignTableName = $row['reftab'];
         $foreignColumns = explode(',', trim($row['refcols'], '{}'));
         // On Update
         switch ($row['confupdtype']) {
             case 'c':
                 $onupdate = ForeignKey::CASCADE;
                 break;
             case 'd':
                 $onupdate = ForeignKey::SETDEFAULT;
                 break;
             case 'n':
                 $onupdate = ForeignKey::SETNULL;
                 break;
             case 'r':
                 $onupdate = ForeignKey::RESTRICT;
                 break;
             default:
             case 'a':
                 // NOACTION is the postgresql default
                 $onupdate = ForeignKey::NONE;
                 break;
         }
         // On Delete
         switch ($row['confdeltype']) {
             case 'c':
                 $ondelete = ForeignKey::CASCADE;
                 break;
             case 'd':
                 $ondelete = ForeignKey::SETDEFAULT;
                 break;
             case 'n':
                 $ondelete = ForeignKey::SETNULL;
                 break;
             case 'r':
                 $ondelete = ForeignKey::RESTRICT;
                 break;
             default:
             case 'a':
                 // NOACTION is the postgresql default
                 $ondelete = ForeignKey::NONE;
                 break;
         }
         $foreignTable = $database->getTable($foreignTableName);
         $localTable = $database->getTable($localTable);
         if (!$foreignTable) {
             continue;
         }
         if (!isset($foreignKeys[$name])) {
             $fk = new ForeignKey($name);
             $fk->setForeignTableCommonName($foreignTable->getCommonName());
             if ($table->guessSchemaName() != $foreignTable->guessSchemaName()) {
                 $fk->setForeignSchemaName($foreignTable->getSchema());
             }
             $fk->setOnDelete($ondelete);
             $fk->setOnUpdate($onupdate);
             $table->addForeignKey($fk);
             $foreignKeys[$name] = $fk;
         }
         $max = count($localColumns);
         for ($i = 0; $i < $max; $i++) {
             $foreignKeys[$name]->addReference($localTable->getColumn($localColumns[$i]), $foreignTable->getColumn($foreignColumns[$i]));
         }
     }
 }

 public function testCompareOnUpdate()
 {
     $c1 = new Column('Foo');
     $c2 = new Column('Bar');
     $fk1 = new ForeignKey();
     $fk1->addReference($c1, $c2);
     $fk1->setOnUpdate(ForeignKey::SETNULL);
     $t1 = new Table('Baz');
     $t1->addForeignKey($fk1);
     $c3 = new Column('Foo');
     $c4 = new Column('Bar');
     $fk2 = new ForeignKey();
     $fk2->addReference($c3, $c4);
     $fk2->setOnUpdate(ForeignKey::RESTRICT);
     $t2 = new Table('Baz');
     $t2->addForeignKey($fk2);
     $this->assertTrue(PropelForeignKeyComparator::computeDiff($fk1, $fk2));
 }

 private function addSnapshotTable()
 {
     $table = $this->getTable();
     $primaryKeyColumn = $table->getFirstPrimaryKeyColumn();
     $database = $table->getDatabase();
     $snapshotTableName = $this->getParameter(self::PARAMETER_SNAPSHOT_TABLE) ?: $this->getDefaultSnapshotTableName();
     if ($database->hasTable($snapshotTableName)) {
         $this->snapshotTable = $database->getTable($snapshotTableName);
         return;
     }
     $snapshotTable = $database->addTable(['name' => $snapshotTableName, 'phpName' => $this->getParameter(self::PARAMETER_SNAPSHOT_PHPNAME), 'package' => $table->getPackage(), 'schema' => $table->getSchema(), 'namespace' => $table->getNamespace() ? '\\' . $table->getNamespace() : null]);
     $addSnapshotAt = true;
     $hasTimestampableBehavior = 0 < count(array_filter($database->getBehaviors(), function (Behavior $behavior) {
         return 'timestampable' === $behavior->getName();
     }));
     if ($hasTimestampableBehavior) {
         $addSnapshotAt = false;
         $timestampableBehavior = clone $database->getBehavior('timestampable');
         $timestampableBehavior->setParameters(array_merge($timestampableBehavior->getParameters(), ['create_column' => $this->getParameter(self::PARAMETER_SNAPSHOT_AT_COLUMN), 'disable_updated_at' => 'true']));
         $snapshotTable->addBehavior($timestampableBehavior);
     }
     $snapshotTable->isSnapshotTable = true;
     $idColumn = $snapshotTable->addColumn(['name' => 'id', 'type' => 'INTEGER']);
     $idColumn->setAutoIncrement(true);
     $idColumn->setPrimaryKey(true);
     $idColumn->setNotNull(true);
     $columns = $table->getColumns();
     foreach ($columns as $column) {
         if ($column->isPrimaryKey()) {
             continue;
         }
         $columnInSnapshotTable = clone $column;
         $columnInSnapshotTable->setNotNull(false);
         if ($columnInSnapshotTable->hasReferrers()) {
             $columnInSnapshotTable->clearReferrers();
         }
         if ($columnInSnapshotTable->isAutoincrement()) {
             $columnInSnapshotTable->setAutoIncrement(false);
         }
         $snapshotTable->addColumn($columnInSnapshotTable);
     }
     $foreignKeyColumn = $snapshotTable->addColumn(['name' => $this->getParameter(self::PARAMETER_REFERENCE_COLUMN), 'type' => $primaryKeyColumn->getType(), 'size' => $primaryKeyColumn->getSize()]);
     $index = new Index();
     $index->setName($this->getParameter(self::PARAMETER_REFERENCE_COLUMN));
     if ($primaryKeyColumn->getSize()) {
         $index->addColumn(['name' => $this->getParameter(self::PARAMETER_REFERENCE_COLUMN), 'size' => $primaryKeyColumn->getSize()]);
     } else {
         $index->addColumn(['name' => $this->getParameter(self::PARAMETER_REFERENCE_COLUMN)]);
     }
     $snapshotTable->addIndex($index);
     $foreignKey = new ForeignKey();
     $foreignKey->setName(vsprintf('fk_%s_%s', [$snapshotTable->getOriginCommonName(), $this->getParameter(self::PARAMETER_REFERENCE_COLUMN)]));
     $foreignKey->setOnUpdate('CASCADE');
     $foreignKey->setOnDelete('SET NULL');
     $foreignKey->setForeignTableCommonName($this->getTable()->getCommonName());
     $foreignKey->addReference($foreignKeyColumn, $primaryKeyColumn);
     $snapshotTable->addForeignKey($foreignKey);
     if ($this->getParameter(self::PARAMETER_LOG_SNAPSHOT_AT) == 'true' && $addSnapshotAt) {
         $snapshotTable->addColumn(['name' => $this->getParameter(self::PARAMETER_SNAPSHOT_AT_COLUMN), 'type' => 'TIMESTAMP']);
     }
     $indices = $table->getIndices();
     foreach ($indices as $index) {
         $copiedIndex = clone $index;
         $snapshotTable->addIndex($copiedIndex);
     }
     // copy unique indices to indices
     // see https://github.com/propelorm/Propel/issues/175 for details
     $unices = $table->getUnices();
     foreach ($unices as $unique) {
         $index = new Index();
         $index->setName($unique->getName());
         $columns = $unique->getColumns();
         foreach ($columns as $columnName) {
             if ($size = $unique->getColumnSize($columnName)) {
                 $index->addColumn(['name' => $columnName, 'size' => $size]);
             } else {
                 $index->addColumn(['name' => $columnName]);
             }
         }
         $snapshotTable->addIndex($index);
     }
     $behaviors = $database->getBehaviors();
     foreach ($behaviors as $behavior) {
         $behavior->modifyDatabase();
     }
     $this->snapshotTable = $snapshotTable;
 }

 /**
  * Adds a relation from logTable to origin table.
  *
  * @param Table $logTable
  */
 protected function addForeignKey(Table $logTable)
 {
     $table = $this->getTable();
     if ($table->getForeignKeysReferencingTable($table->getName())) {
         //if already a foreignKey exist to origin table then don't add a second.
         return;
     }
     // create the foreign key
     $fk = new ForeignKey();
     $fk->setForeignTableCommonName($table->getCommonName());
     $fk->setForeignSchemaName($table->getSchema());
     $fk->setPhpName('Origin');
     $fk->setOnDelete('CASCADE');
     $fk->setOnUpdate('CASCADE');
     foreach ($table->getPrimaryKey() as $column) {
         $fk->addReference($logTable->getColumn($column->getName()), $column);
     }
     $logTable->addForeignKey($fk);
 }

 /**
  * Load foreign keys for this table.
  */
 protected function addForeignKeys(Table $table)
 {
     $database = $table->getDatabase();
     $dataFetcher = $this->dbh->query(sprintf('SHOW CREATE TABLE %s', $this->getPlatform()->doQuoting($table->getName())));
     $row = $dataFetcher->fetch();
     $foreignKeys = array();
     // local store to avoid duplicates
     // Get the information on all the foreign keys
     $pattern = '/CONSTRAINT `([^`]+)` FOREIGN KEY \\((.+)\\) REFERENCES `([^\\s]+)` \\((.+)\\)(.*)/';
     if (preg_match_all($pattern, $row[1], $matches)) {
         $tmpArray = array_keys($matches[0]);
         foreach ($tmpArray as $curKey) {
             $name = $matches[1][$curKey];
             $rawlcol = $matches[2][$curKey];
             $ftbl = str_replace('`', '', $matches[3][$curKey]);
             $rawfcol = $matches[4][$curKey];
             $fkey = $matches[5][$curKey];
             $lcols = array();
             foreach (preg_split('/`, `/', $rawlcol) as $piece) {
                 $lcols[] = trim($piece, '` ');
             }
             $fcols = array();
             foreach (preg_split('/`, `/', $rawfcol) as $piece) {
                 $fcols[] = trim($piece, '` ');
             }
             // typical for mysql is RESTRICT
             $fkactions = array('ON DELETE' => ForeignKey::RESTRICT, 'ON UPDATE' => ForeignKey::RESTRICT);
             if ($fkey) {
                 // split foreign key information -> search for ON DELETE and afterwords for ON UPDATE action
                 foreach (array_keys($fkactions) as $fkaction) {
                     $result = null;
                     preg_match('/' . $fkaction . ' (' . ForeignKey::CASCADE . '|' . ForeignKey::SETNULL . ')/', $fkey, $result);
                     if ($result && is_array($result) && isset($result[1])) {
                         $fkactions[$fkaction] = $result[1];
                     }
                 }
             }
             // restrict is the default
             foreach ($fkactions as $key => $action) {
                 if (ForeignKey::RESTRICT === $action) {
                     $fkactions[$key] = null;
                 }
             }
             $localColumns = array();
             $foreignColumns = array();
             if ($table->guessSchemaName() != $database->getSchema() && false == strpos($ftbl, $database->getPlatform()->getSchemaDelimiter())) {
                 $ftbl = $table->guessSchemaName() . $database->getPlatform()->getSchemaDelimiter() . $ftbl;
             }
             $foreignTable = $database->getTable($ftbl, true);
             if (!$foreignTable) {
                 continue;
             }
             foreach ($fcols as $fcol) {
                 $foreignColumns[] = $foreignTable->getColumn($fcol);
             }
             foreach ($lcols as $lcol) {
                 $localColumns[] = $table->getColumn($lcol);
             }
             if (!isset($foreignKeys[$name])) {
                 $fk = new ForeignKey($name);
                 $fk->setForeignTableCommonName($foreignTable->getCommonName());
                 if ($table->guessSchemaName() != $foreignTable->guessSchemaName()) {
                     $fk->setForeignSchemaName($foreignTable->guessSchemaName());
                 }
                 $fk->setOnDelete($fkactions['ON DELETE']);
                 $fk->setOnUpdate($fkactions['ON UPDATE']);
                 $table->addForeignKey($fk);
                 $foreignKeys[$name] = $fk;
             }
             $max = count($localColumns);
             for ($i = 0; $i < $max; $i++) {
                 $foreignKeys[$name]->addReference($localColumns[$i], $foreignColumns[$i]);
             }
         }
     }
 }

 public function testGetOnActionBehaviors()
 {
     $fk = new ForeignKey();
     $fk->setOnUpdate('SETNULL');
     $fk->setOnDelete('CASCADE');
     $this->assertSame('SET NULL', $fk->getOnUpdate());
     $this->assertTrue($fk->hasOnUpdate());
     $this->assertSame('CASCADE', $fk->getOnDelete());
     $this->assertTrue($fk->hasOnDelete());
 }

 protected function addForeignKeys(Table $table)
 {
     $stmt = $this->dbh->query('PRAGMA foreign_key_list("' . $table->getName() . '")');
     $lastId = null;
     while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
         if ($lastId !== $row['id']) {
             $fk = new ForeignKey();
             $tableName = $row['table'];
             $tableSchema = '';
             if (false !== ($pos = strpos($tableName, '§'))) {
                 $tableName = substr($tableName, $pos + 2);
                 $tableSchema = substr($tableName, 0, $pos);
             }
             $fk->setForeignTableCommonName($tableName);
             if ($table->getDatabase()->getSchema() != $tableSchema) {
                 $fk->setForeignSchemaName($tableSchema);
             }
             $fk->setOnDelete($row['on_delete']);
             $fk->setOnUpdate($row['on_update']);
             $table->addForeignKey($fk);
             $lastId = $row['id'];
         }
         $fk->addReference($row['from'], $row['to']);
     }
 }