public function EntityReferenceItemTest::testEntityReferenceFieldSchema

Tests foreign key support.

File

drupal/core/modules/entity_reference/lib/Drupal/entity_reference/Tests/EntityReferenceItemTest.php, line 112

Contains \Drupal\entity_reference\Tests\EntityReferenceItemTest.

Class

EntityReferenceItemTest

Tests the new entity API for the entity reference field type.

Namespace

Code

public function testEntityReferenceFieldSchema() {
  $field = field_info_field('field_test_taxonomy');
  $foreign_key_column_name = 'target_id';

  // Grab the SQL schema and verify that the 'foreign keys' are present.
  $schemas = _field_sql_storage_schema($field);
  $schema = $schemas[_field_sql_storage_tablename($field)];
  $this
    ->assertEqual(count($schema['foreign keys']), 1, 'There is 1 foreign key in the schema.');
  $foreign_key = reset($schema['foreign keys']);
  $foreign_key_column = _field_sql_storage_columnname($field['field_name'], $foreign_key_column_name);
  $this
    ->assertEqual($foreign_key['table'], 'taxonomy_term_data', 'Foreign key table name preserved in the schema.');
  $this
    ->assertEqual($foreign_key['columns'][$foreign_key_column], 'tid', 'Foreign key column name preserved in the schema.');

  // Create a field that references a config entity type and check that no
  // foreign key is present.
  $field_name = 'field_test_vocabulary';
  entity_reference_create_instance('entity_test', 'entity_test', $field_name, 'Test vocabulary reference', 'taxonomy_vocabulary');
  $field = field_info_field($field_name);
  $schemas = _field_sql_storage_schema($field);
  $schema = $schemas[_field_sql_storage_tablename($field)];
  $this
    ->assertFalse(isset($schema['foreign keys']), 'There is no foreign key in the schema.');
}