/** * Returns a SchemaDiff object containing the differences between the schemas $fromSchema and $toSchema. * * The returned differences are returned in such a way that they contain the * operations to change the schema stored in $fromSchema to the schema that is * stored in $toSchema. * * @param \Doctrine\DBAL\Schema\Schema $fromSchema * @param \Doctrine\DBAL\Schema\Schema $toSchema * * @return \Doctrine\DBAL\Schema\SchemaDiff */ public function compare(Schema $fromSchema, Schema $toSchema) { $diff = new SchemaDiff(); $diff->fromSchema = $fromSchema; $foreignKeysToTable = array(); foreach ($toSchema->getNamespaces() as $namespace) { if (!$fromSchema->hasNamespace($namespace)) { $diff->newNamespaces[$namespace] = $namespace; } } foreach ($fromSchema->getNamespaces() as $namespace) { if (!$toSchema->hasNamespace($namespace)) { $diff->removedNamespaces[$namespace] = $namespace; } } foreach ($toSchema->getTables() as $table) { $tableName = $table->getShortestName($toSchema->getName()); if (!$fromSchema->hasTable($tableName)) { $diff->newTables[$tableName] = $toSchema->getTable($tableName); } else { $tableDifferences = $this->diffTable($fromSchema->getTable($tableName), $toSchema->getTable($tableName)); if ($tableDifferences !== false) { $diff->changedTables[$tableName] = $tableDifferences; } } } /* Check if there are tables removed */ foreach ($fromSchema->getTables() as $table) { $tableName = $table->getShortestName($fromSchema->getName()); $table = $fromSchema->getTable($tableName); if (!$toSchema->hasTable($tableName)) { $diff->removedTables[$tableName] = $table; } // also remember all foreign keys that point to a specific table foreach ($table->getForeignKeys() as $foreignKey) { $foreignTable = strtolower($foreignKey->getForeignTableName()); if (!isset($foreignKeysToTable[$foreignTable])) { $foreignKeysToTable[$foreignTable] = array(); } $foreignKeysToTable[$foreignTable][] = $foreignKey; } } foreach ($diff->removedTables as $tableName => $table) { if (isset($foreignKeysToTable[$tableName])) { $diff->orphanedForeignKeys = array_merge($diff->orphanedForeignKeys, $foreignKeysToTable[$tableName]); // deleting duplicated foreign keys present on both on the orphanedForeignKey // and the removedForeignKeys from changedTables foreach ($foreignKeysToTable[$tableName] as $foreignKey) { // strtolower the table name to make if compatible with getShortestName $localTableName = strtolower($foreignKey->getLocalTableName()); if (isset($diff->changedTables[$localTableName])) { foreach ($diff->changedTables[$localTableName]->removedForeignKeys as $key => $removedForeignKey) { # BUG-1481 if ($removedForeignKey->getLocalTableName() == $tableName) { unset($diff->changedTables[$localTableName]->removedForeignKeys[$key]); } } } } } } foreach ($toSchema->getSequences() as $sequence) { $sequenceName = $sequence->getShortestName($toSchema->getName()); if (!$fromSchema->hasSequence($sequenceName)) { if (!$this->isAutoIncrementSequenceInSchema($fromSchema, $sequence)) { $diff->newSequences[] = $sequence; } } else { if ($this->diffSequence($sequence, $fromSchema->getSequence($sequenceName))) { $diff->changedSequences[] = $toSchema->getSequence($sequenceName); } } } foreach ($fromSchema->getSequences() as $sequence) { if ($this->isAutoIncrementSequenceInSchema($toSchema, $sequence)) { continue; } $sequenceName = $sequence->getShortestName($fromSchema->getName()); if (!$toSchema->hasSequence($sequenceName)) { $diff->removedSequences[] = $sequence; } } return $diff; }
/** * @group DBAL-669 */ public function testCreatesNamespaceThroughAddingSequenceImplicitly() { $schema = new Schema(); $this->assertFalse($schema->hasNamespace('foo')); $schema->createSequence('baz'); $this->assertFalse($schema->hasNamespace('foo')); $this->assertFalse($schema->hasNamespace('baz')); $schema->createSequence('foo.bar'); $this->assertTrue($schema->hasNamespace('foo')); $this->assertFalse($schema->hasNamespace('bar')); $schema->createSequence('`baz`.bloo'); $this->assertTrue($schema->hasNamespace('baz')); $this->assertFalse($schema->hasNamespace('bloo')); $schema->createSequence('`baz`.moo'); $this->assertTrue($schema->hasNamespace('baz')); $this->assertFalse($schema->hasNamespace('moo')); }