function field_read_instance in Drupal 7

Reads a single instance record from the database.

Generally, you should use field_info_instance() instead, as it provides caching and allows other modules the opportunity to append additional formatters, widgets, and other information.

Parameters

$entity_type: The type of entity to which the field is bound.

$field_name: The field name to read.

$bundle: The bundle to which the field is bound.

array $include_additional: The default behavior of this function is to not return an instance that has been deleted, or whose field is inactive. Setting $include_additional['include_inactive'] or $include_additional['include_deleted'] to TRUE will override this behavior.

Return value

An instance structure, or FALSE.

Related topics

14 calls to field_read_instance()

FieldAttachStorageTestCase::testFieldAttachDeleteBundle in modules/field/tests/field.test

Test field_attach_delete_bundle().

FieldCrudTestCase::testDeleteField in modules/field/tests/field.test

Test the deletion of a field.

FieldInstanceCrudTestCase::testDeleteFieldInstance in modules/field/tests/field.test

Test the deletion of a field instance.

FieldInstanceCrudTestCase::testReadFieldInstance in modules/field/tests/field.test

Test reading back an instance definition.

FieldInstanceCrudTestCase::testUpdateFieldInstance in modules/field/tests/field.test

Test the update of a field instance.

... See full list

File

modules/field/field.crud.inc, line 692

Field CRUD API, handling field and field instance creation and deletion.

Code

function field_read_instance($entity_type, $field_name, $bundle, $include_additional = array()) {
  $instances = field_read_instances(array(
    'entity_type' => $entity_type,
    'field_name' => $field_name,
    'bundle' => $bundle,
  ), $include_additional);
  return $instances ? current($instances) : FALSE;
}