/** * Unfortunately, SQLite does not support composite pks where one is AUTOINCREMENT, * so we have to flag both as NOT NULL and create a UNIQUE constraint. * * @param Table $table */ public function normalizeTable(Table $table) { if (count($pks = $table->getPrimaryKey()) > 1 && $table->hasAutoIncrementPrimaryKey()) { foreach ($pks as $pk) { //no pk can be NULL, as usual $pk->setNotNull(true); //in SQLite the column with the AUTOINCREMENT MUST be a primary key, too. if (!$pk->isAutoIncrement()) { //for all other sub keys we remove it, since we create a UNIQUE constraint over all primary keys. $pk->setPrimaryKey(false); } } //search if there is already a UNIQUE constraint over the primary keys $pkUniqueExist = false; foreach ($table->getUnices() as $unique) { $allPk = false; foreach ($unique->getColumns() as $columnName) { $allPk &= $table->getColumn($columnName)->isPrimaryKey(); } if ($allPk) { //there's already a unique constraint with the composite pk $pkUniqueExist = true; break; } } //there is none, let's create it if (!$pkUniqueExist) { $unique = new Unique(); foreach ($pks as $pk) { $unique->addColumn($pk); } $table->addUnique($unique); } } parent::normalizeTable($table); }