75 lines
2.9 KiB
PHP
75 lines
2.9 KiB
PHP
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<?php
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class WPML_ACF_Attachments {
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/**
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* @var array Pairs of original - translation for already processed attachments during custom field copying.
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*/
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private static $attachment_fields_copied = array();
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/**
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* Registers hooks related to attachments.
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*/
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public function register_hooks() {
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add_filter( 'acf/load_value/type=gallery', array( $this, 'load_translated_attachment' ) );
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add_filter( 'acf/load_value/type=image', array( $this, 'load_translated_attachment' ) );
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add_filter( 'acf/load_value/type=file', array( $this, 'load_translated_attachment' ) );
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add_action( 'wpml_after_update_attachment_texts', array( $this, 'copy_attachment_fields_to_translation' ), 10, 2 );
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}
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/**
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* @param array|string|int $attachments array of attachment ids or single attachment id
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*
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* @return array|string|int translated attachemnt id or attachments' ids
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*/
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public function load_translated_attachment($attachments) {
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$attachments = maybe_unserialize($attachments);
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if ( is_array( $attachments ) ) {
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$translated_attachments = array();
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foreach ( $attachments as $key => $attachment_id ) {
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$translated_attachments[$key] = apply_filters( 'wpml_object_id', $attachment_id, 'attachment', true );
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}
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} else {
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$translated_attachments = apply_filters( 'wpml_object_id', $attachments, 'attachment', true );
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}
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return $translated_attachments;
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}
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/**
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* Copies ACF custom fields from original attachment to translation.
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*
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* @param int $original_id Original post ID.
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* @param object $translation Translation object.
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*/
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public function copy_attachment_fields_to_translation( $original_id, $translation ) {
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if ( function_exists( 'get_fields' )
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&& function_exists( 'acf_get_field' )
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/*
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* \WPML_Media_Attachments_Duplication::synchronize_attachment_metadata runs duplication twice,
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* I don't know why it happens, but no reason to duplicate metadata again for the same attachments pair.
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*/
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&& ! isset( self::$attachment_fields_copied[ $original_id ][ $translation->element_id ] ) ) {
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$acf_fields = get_fields( $original_id );
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if ( is_array( $acf_fields ) ) {
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foreach ( $acf_fields as $acf_field_name => $acf_field_value ) {
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$acf_field = acf_get_field( $acf_field_name );
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if ( isset( $acf_field['wpml_cf_preferences'] ) ) {
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switch ( $acf_field['wpml_cf_preferences'] ) {
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case ( WPML_COPY_CUSTOM_FIELD ):
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update_post_meta( $translation->element_id, $acf_field_name, $acf_field_value );
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break;
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case ( WPML_COPY_ONCE_CUSTOM_FIELD ):
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$translated_post_meta = get_post_meta( $translation->element_id, $acf_field_name, true );
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if ( ! $translated_post_meta ) {
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update_post_meta( $translation->element_id, $acf_field_name, $acf_field_value );
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}
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break;
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}
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}
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}
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}
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self::$attachment_fields_copied[ $original_id ][ $translation->element_id ] = 1;
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}
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}
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}
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