interview drupal api javascriptanderson theregister

Note that the above answer has been excerpted from the Drupal API Documentation, where more information can be found. field_attach_load() then loads the ‘subtitle’ and ‘photo’ fields because they are both attached to the ‘node’ bundle ‘article’.įield definitions are represented as an array of key/value pairs. When the node system uses the Field Attach API to load all fields for an Article node, it passes the node’s entity type (which is ‘node’) and content type (which is ‘article’) as the node’s bundle. The administrator (again, via a UI) creates two Field Instances, one attaching the field ‘subtitle’ to the ‘node’ bundle ‘article’ and one attaching the field ‘photo’ to the ‘node’ bundle ‘article’. Before diving into the documentation below you might want to read the background and prerequisites, and the Creating custom modules guides, both of which explain some concepts and terminology that will be assumed knowledge in the API documentation here. Using the Field API or Field UI module, the administrator creates a field named ‘subtitle’ of type ‘text’ and a field named ‘photo’ of type ‘image’. Each version of Drupal introduces new APIs and keeps only some of the previous major versions’ APIs. A Bundle is a set of fields that are treated as a group by the Field Attach API and is related to a single fieldable entity type.įor example, suppose a site administrator wants Article nodes to have a subtitle and photo. A Field Instance is a Field attached to a single Bundle. A Field defines a particular type of data that can be attached to entities. The Field API defines two primary data structures, Field and Instance, and the concept of a Bundle.

Other modules can provide a user interface for managing custom fields via a web browser as well as a wide and flexible variety of data type, form element, and display format capabilities. Any entity type (node, user, etc.) can use the Field API to make itself “fieldable” and thus allow fields to be attached to it. The Field API allows custom data fields to be attached to Drupal entities and takes care of storing, loading, editing, and rendering field data.

Interview drupal api javascriptanderson theregister