Topics

Name	Description
About Views handlers	In Views, a handler is an object that is part of the view and is part of the query building flow.
About Views plugins	In Views, a plugin is a bit like a handler, but plugins are not directly responsible for building the query. Instead, they are objects that are used to display the view or make other modifications.
Actions	Functions that perform an action on a certain system object.
Ajax framework	Functions for Backdrop's Ajax framework.
Ajax framework commands	Functions to create various Ajax commands.
Authorized operations	Functions to run operations with elevated privileges via authorize.php.
Batch operations	Creates and processes batch operations.
Block Caching	Constants that define each block's caching state.
Callbacks	Callback function signatures.
Content markers	Markers used by theme_mark() and node_mark() to designate content.
Database abstraction layer	Allow the use of different database servers using the same code base.
Default theme implementations	Functions and templates for the user interface to be implemented by themes.
Drupal compatibility layer.	These functions and classes are wrappers around Backdrop functions that allow for Drupal 7 modules to work with Backdrop. All of these functions are made available if the "backdrop_drupal_compatibility" option is enabled in your site's…
Example: Action	Creating actions in Backdrop
Example: AJAX	These examples show basic AJAX concepts.
Example: AJAX Graceful Degradation	These examples show AJAX with graceful degradation when JavaScript is not available.
Example: Batch API	Outlines how a module can use the Batch API.
Example: Block	Demonstrates code creation of blocks.
Example: Cache API	Outlines how a module can use the Cache API.
Example: Contextual Links	Example of implementing contextual links.
Example: Cron	Example using Cron API, including hook_cron() and hook_cron_queue_info().
Example: Database (DBTNG)	Database examples, including DBTNG.
Example: Email	Example of how to use Backdrop's mail API.
Example: Entity	Example creating a core Entity API entity.
Example: Field Permissions	Example using permissions on a Field API field.
Example: Field Types API	Examples using Field Types API.
Example: Files	Examples demonstrating the backdrop File API (and Stream Wrappers).
Example: Filter	Demonstrates the creation of filters.
Example: Form API	Examples demonstrating the Backdrop Form API.
Example: Image	Demonstrates the basic use of image API.
Example: JavaScript	Examples using Backdrop's built-in JavaScript.
Example: Menu	Demonstrates uses of the Menu APIs in Backdrop.
Example: Node	Example defining a node type in code.
Example: Node Access	Demonstrates node access.
Example: NodeAPI	Example using NodeAPI.
Example: Page	This example demonstrates how a module can display a page at a given URL.
Example: Pager	Example of a results pager.
Example: Queue	Demonstrating the Queue API
Example: Render	Demonstrate how render arrays are arranged and how they can be altered. This alters blocks and the page to show the actual render array that is being used to create each item.
Example: Simpletest	An example of simpletest tests to accompany the documentation at https://docs.backdropcms.org/documentation/testing-framework.
Example: Tabledrag	Example of draggable table rows.
Example: Tablesort	Example of a sortable table display.
Example: Theming	Example of Backdrop theming.
Example: Token API	Examples using the Token API.
Example: Vertical Tabs	Demonstrates the vertical tabs functionality provided by Backdrop.
Examples	These modules are well-documented API examples for a broad range of Backdrop core functionality.
Field API	Attach custom data fields to Backdrop entities.
Field API bulk data deletion	Clean up after Field API bulk deletion operations.
Field Attach API	Operate on Field API data attached to Backdrop entities.
Field CRUD API	Create, update, and delete Field API fields, bundles, and instances.

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