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Title Object type File name Summary
hook_field_insert function modules/field/field.api.php Define custom insert behavior for this module's field data.
hook_field_instance_settings_form function modules/field_ui/field_ui.api.php Add settings to an instance field settings form.
hook_field_is_empty function modules/field/field.api.php Define what constitutes an empty item for a field type.
hook_field_language_alter function modules/field/field.api.php Perform alterations on field_language() values.
hook_field_load function modules/field/field.api.php Define custom load behavior for this module's field types.
hook_field_prepare_translation function modules/field/field.api.php Define custom prepare_translation behavior for this module's field types.
hook_field_prepare_view function modules/field/field.api.php Prepare field values prior to display.
hook_field_presave function modules/field/field.api.php Define custom presave behavior for this module's field types.
hook_field_purge_field function modules/field/field.api.php Acts when a field record is being purged.
hook_field_purge_instance function modules/field/field.api.php Acts when a field instance is being purged.
hook_field_read_field function modules/field/field.api.php Act on field records being read from the database.
hook_field_read_instance function modules/field/field.api.php Act on a field record being read from the database.
hook_field_schema function modules/field/field.api.php Define the Field API schema for a field structure.
hook_field_schema_alter function modules/field/field.api.php Allow modules to alter the schema for a field.
hook_field_settings_form function modules/field_ui/field_ui.api.php Add settings to a field settings form.
hook_field_storage_create_field function modules/field/field.api.php Act on creation of a new field.
hook_field_storage_delete function modules/field/field.api.php Delete all field data for an entity.
hook_field_storage_delete_field function modules/field/field.api.php Act on deletion of a field.
hook_field_storage_delete_instance function modules/field/field.api.php Act on deletion of a field instance.
hook_field_storage_delete_revision function modules/field/field.api.php Delete a single revision of field data for an entity.
hook_field_storage_details function modules/field/field.api.php Reveal the internal details about the storage for a field.
hook_field_storage_details_alter function modules/field/field.api.php Perform alterations on Field API storage details.
hook_field_storage_info function modules/field/field.api.php Expose Field API storage backends.
hook_field_storage_info_alter function modules/field/field.api.php Perform alterations on Field API storage types.
hook_field_storage_load function modules/field/field.api.php Load field data for a set of entities.
hook_field_storage_pre_insert function modules/field/field.api.php Act before the storage backends insert field data.
hook_field_storage_pre_load function modules/field/field.api.php Act before the storage backends load field data.
hook_field_storage_pre_update function modules/field/field.api.php Act before the storage backends update field data.
hook_field_storage_purge function modules/field/field.api.php Remove field storage information when field data is purged.
hook_field_storage_purge_field function modules/field/field.api.php Remove field storage information when a field record is purged.
hook_field_storage_purge_field_instance function modules/field/field.api.php Remove field storage information when a field instance is purged.
hook_field_storage_query function modules/field/field.api.php Execute an EntityFieldQuery.
hook_field_storage_update_field function modules/field/field.api.php Update the storage information for a field.
hook_field_storage_write function modules/field/field.api.php Write field data for an entity.
hook_field_update function modules/field/field.api.php Define custom update behavior for this module's field data.
hook_field_update_field function modules/field/field.api.php Act on a field being updated.
hook_field_update_forbid function modules/field/field.api.php Forbid a field update from occurring.
hook_field_update_instance function modules/field/field.api.php Act on a field instance being updated.
hook_field_validate function modules/field/field.api.php Validate this module's field data.
hook_field_widget_error function modules/field/field.api.php Flag a field-level validation error.
hook_field_widget_form function modules/field/field.api.php Return the form for a single field widget.
hook_field_widget_form_alter function modules/field/field.api.php Alter forms for field widgets provided by other modules.
hook_field_widget_info function modules/field/field.api.php Expose Field API widget types.
hook_field_widget_info_alter function modules/field/field.api.php Perform alterations on Field API widget types.
hook_field_widget_properties_alter function modules/field/field.api.php Alters the widget properties of a field instance before it gets displayed.
hook_field_widget_properties_ENTITY_TYPE_alter function modules/field/field.api.php Alters the widget properties of a field instance on a given entity type
before it gets displayed.
hook_field_widget_settings_form function modules/field_ui/field_ui.api.php Add settings to a widget settings form.
hook_field_widget_WIDGET_TYPE_form_alter function modules/field/field.api.php Alter widget forms for a specific widget provided by another module.
image.field.inc file modules/image/image.field.inc Implement an image field, based on the file module's file field.
ImageFieldDefaultImagesTestCase class modules/image/image.test Tests default image settings.

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