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<?php
/**
* Generate the JSON export for a gallery
*
* @param int[] $foogallery_ids The IDs of the gallery to export.
*
* @return string
*/
function foogallery_generate_export_json( $foogallery_ids ) {
global $current_foogallery;
$exported_galleries = array();
if ( ! is_array( $foogallery_ids ) && intval( $foogallery_ids ) > 0 ) {
$foogallery_ids = array( $foogallery_ids );
}
foreach ( $foogallery_ids as $foogallery_id ) {
$current_foogallery = FooGallery::get_by_id( $foogallery_id );
do_action( 'foogallery_located_template', $current_foogallery );
$source_settings = get_post_meta( $foogallery_id, FOOGALLERY_META_SETTINGS, true );
$source_sorting = get_post_meta( $foogallery_id, FOOGALLERY_META_SORT, true );
$source_retina = get_post_meta( $foogallery_id, FOOGALLERY_META_RETINA, true );
$source_custom_css = get_post_meta( $foogallery_id, FOOGALLERY_META_CUSTOM_CSS, true );
$export = array(
'ID' => $foogallery_id,
'template' => $current_foogallery->gallery_template,
'name' => $current_foogallery->name,
'datasource_name' => $current_foogallery->datasource_name,
);
if ( 'media_library' === $current_foogallery->datasource_name ) {
$export['attachment_ids'] = $current_foogallery->attachment_ids;
$attachments = array();
foreach ( $current_foogallery->attachments() as $attachment ) {
$attachment_object = array(
'url' => $attachment->url,
'title' => $attachment->title,
'caption' => $attachment->caption,
'description' => $attachment->description,
'alt' => $attachment->alt,
);
if ( ! empty( $attachment->custom_url ) ) {
$attachment_object['custom_url'] = $attachment->custom_url;
}
if ( ! empty( $attachment->custom_target ) ) {
$attachment_object['custom_target'] = $attachment->custom_target;
}
if ( defined( 'FOOGALLERY_ATTACHMENT_TAXONOMY_TAG' ) ) {
$tags = wp_get_post_terms( $attachment->ID, FOOGALLERY_ATTACHMENT_TAXONOMY_TAG, array( 'fields' => 'names' ) );
if ( ! empty( $tags ) && ! is_wp_error( $tags ) ) {
$attachment_object['tags'] = $tags;
}
$categories = wp_get_post_terms( $attachment->ID, FOOGALLERY_ATTACHMENT_TAXONOMY_CATEGORY, array( 'fields' => 'names' ) );
if ( ! empty( $categories ) && ! is_wp_error( $categories ) ) {
$attachment_object['categories'] = $categories;
}
}
$attachments[ $attachment->ID ] = $attachment_object;
}
} else {
$export['datasource_value'] = $current_foogallery->datasource_value;
}
$export['settings'] = $source_settings;
$export['sorting'] = $source_sorting;
$export['retina'] = $source_retina;
$export['custom_css'] = $source_custom_css;
if ( isset( $attachments ) ) {
$export['attachments'] = $attachments;
}
$exported_galleries[] = $export;
}
return foogallery_json_encode( $exported_galleries );
}