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-rw-r--r--modules/system/system.api.php8
1 files changed, 4 insertions, 4 deletions
diff --git a/modules/system/system.api.php b/modules/system/system.api.php
index 806b618a2..3f61cc0e8 100644
--- a/modules/system/system.api.php
+++ b/modules/system/system.api.php
@@ -113,21 +113,21 @@ function hook_hook_info_alter(&$hooks) {
* translation handlers. Array keys are the module names, array values
* can be any data structure the module uses to provide field translation.
* Any empty value disallows the module to appear as a translation handler.
- * - entity keys: An array describing how the Field API can extract the
- * information it needs from the objects of the type. Elements:
+ * - entity keys: (optional) An array describing how the Field API can extract
+ * the information it needs from the objects of the type. Elements:
* - id: The name of the property that contains the primary id of the
* entity. Every entity object passed to the Field API must have this
* property and its value must be numeric.
* - revision: The name of the property that contains the revision id of
* the entity. The Field API assumes that all revision ids are unique
* across all entities of a type. This entry can be omitted if the
- * entities of this type are not versionable.
+ * entities of this type are not versionable. Defaults to an empty string.
* - bundle: The name of the property that contains the bundle name for the
* entity. The bundle name defines which set of fields are attached to
* the entity (e.g. what nodes call "content type"). This entry can be
* omitted if this entity type exposes a single bundle (all entities have
* the same collection of fields). The name of this single bundle will be
- * the same as the entity type.
+ * the same as the entity type. Defaults to an empty string.
* - label: The name of the property that contains the entity label. For
* example, if the entity's label is located in $entity->subject, then
* 'subject' should be specified here. If complex logic is required to