TableConstraint.fromMap constructor

TableConstraint.fromMap(Map<String, dynamic> map)

Implementation

factory TableConstraint.fromMap(Map<String, dynamic> map) {
  switch (map['type']) {
    case 'primary_key':
      return PrimaryKeyConstraint(null, map['column']! as String);
    case 'foreign_key':
      return ForeignKeyConstraint(
        null,
        map['column']! as String,
        (map['target']! as String).split('.')[0],
        (map['target']! as String).split('.')[1],
        map['on_delete'] == 'cascade' ? ForeignKeyAction.cascade : ForeignKeyAction.setNull,
        map['on_update'] == 'cascade' ? ForeignKeyAction.cascade : ForeignKeyAction.setNull,
      );
    case 'unique':
      return UniqueConstraint(null, map['column']! as String);
    default:
      throw Exception("No table constraint for type ${map["type"]}");
  }
}