77 lines
2.1 KiB
PHP
77 lines
2.1 KiB
PHP
<?php
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namespace Activitypub\Transformer;
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use WP_Error;
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use Activitypub\Transformer\Base;
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use Activitypub\Transformer\Post;
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use Activitypub\Transformer\Comment;
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use Activitypub\Transformer\Attachment;
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/**
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* Transformer Factory
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*/
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class Factory {
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public static function get_transformer( $object ) {
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if ( ! \is_object( $object ) ) {
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return new WP_Error( 'invalid_object', __( 'Invalid object', 'activitypub' ) );
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}
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$class = \get_class( $object );
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/**
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* Filter the transformer for a given object.
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*
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* Add your own transformer based on the object class or the object type.
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*
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* Example usage:
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*
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* // Filter be object class
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* add_filter( 'activitypub_transformer', function( $transformer, $object, $object_class ) {
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* if ( $object_class === 'WP_Post' ) {
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* return new My_Post_Transformer( $object );
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* }
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* return $transformer;
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* }, 10, 3 );
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*
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* // Filter be object type
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* add_filter( 'activitypub_transformer', function( $transformer, $object, $object_class ) {
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* if ( $object->post_type === 'event' ) {
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* return new My_Event_Transformer( $object );
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* }
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* return $transformer;
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* }, 10, 3 );
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*
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* @param Activitypub\Transformer\Base $transformer The transformer to use.
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* @param mixed $object The object to transform.
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* @param string $object_class The class of the object to transform.
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*
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* @return mixed The transformer to use.
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*/
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$transformer = \apply_filters( 'activitypub_transformer', null, $object, $class );
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if ( $transformer ) {
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if (
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! \is_object( $transformer ) ||
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! $transformer instanceof Base
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) {
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return new WP_Error( 'invalid_transformer', __( 'Invalid transformer', 'activitypub' ) );
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}
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return $transformer;
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}
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// use default transformer
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switch ( $class ) {
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case 'WP_Post':
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if ( 'attachment' === $object->post_type ) {
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return new Attachment( $object );
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}
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return new Post( $object );
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case 'WP_Comment':
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return new Comment( $object );
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default:
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return null;
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}
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}
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}
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