polylang / src / integrations / wp-offload-media / as3cf.php

as3cf.php in Polylang trunk, at src/integrations/wp-offload-media/as3cf.php

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1	<?php
2	/**
3	* @package Polylang
4	*/
5
6	/**
7	* A class to manage the integration with WP Offload Media Lite.
8	* Version tested: 2.1.1
9	*
10	* @since 2.6
11	*/
12	class PLL_AS3CF {
13	/**
14	* Stores if a media is translated when it is deleted.
15	*
16	* @var bool[]
17	*/
18	private $is_media_translated = array();
19
20	/**
21	* Initializes filters and actions.
22	*
23	* @since 2.6
24	*/
25	public function init() {
26	add_filter( 'pll_copy_post_metas', array( $this, 'copy_post_metas' ) );
27	add_action( 'delete_attachment', array( $this, 'check_translated_media' ), 5 ); // Before Polylang deletes the translations information.
28	add_action( 'delete_attachment', array( $this, 'prevent_file_deletion' ), 15 ); // Between Polylang and WP Offload Media.
29	}
30
31	/**
32	* Synchronizes post metas
33	*
34	* @since 2.6
35	*
36	* @param array $metas List of custom fields names.
37	* @return array
38	*/
39	public function copy_post_metas( $metas ) {
40	$metas[] = 'amazonS3_info';
41	$metas[] = 'as3cf_filesize_total';
42	return $metas;
43	}
44
45	/**
46	* Checks if the deleted attachment was translated and stores the information.
47	*
48	* @since 2.6
49	*
50	* @param int $post_id Id of the attachment being deleted.
51	*/
52	public function check_translated_media( $post_id ) {
53	$this->is_media_translated[ $post_id ] = ( count( pll_get_post_translations( $post_id ) ) > 1 );
54	}
55
56	/**
57	* Deletes the WP Offload Media information from the attachment being deleted.
58	* That way WP Offload Media won't delete the file stored in the cloud.
59	* Done after Polylang has deleted the translations information, to avoid the synchronization of the deletion
60	* and of course before WP Offload Media deletes the file, normally at priority 20.
61	*
62	* @since 2.6
63	*
64	* @param int $post_id Id of the attachment being deleted.
65	*/
66	public function prevent_file_deletion( $post_id ) {
67	if ( ! empty( $this->is_media_translated[ $post_id ] ) ) {
68	delete_post_meta( $post_id, 'amazonS3_info' );
69	delete_post_meta( $post_id, 'as3cf_filesize_total' );
70	}
71	}
72	}
73