BP_Group_Extension::get_screen_callback( string $context = '', string $type = 'screen' )

Description

BP Group Extensions have three special "screen contexts": create, admin, and edit. Each of these contexts has a corresponding _screen() and _screen_save() method, which allow group extension plugins to define different markup and logic for each context.

BP also supports fallback settings_screen() and settings_screen_save() methods, which can be used to define markup and logic that is shared between context. For each context, you may either provide context-specific methods, or you can let BP fall back on the shared settings_* callbacks.

For example, consider a BP_Group_Extension implementation that looks like this:

// … function create_screen( $group_id ) { … } function create_screen_save( $group_id ) { … } function settings_screen( $group_id ) { … } function settings_screen_save( $group_id ) { … } // …

BP_Group_Extension will use your create_ methods for the Create steps, and will use your generic settings_ methods for the Edit and Admin contexts. This schema allows plugin authors maximum flexibility without having to repeat themselves.

The get_screen_callback() method uses a ReflectionClass object to determine whether your extension has provided a given callback.