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<?php |
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/** |
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* The default Gallery Datasource which pulls attachments from the WP media library |
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*/ |
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if ( ! class_exists( 'FooGalleryDatasource_MediaLibrary' ) ) { |
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class FooGalleryDatasource_MediaLibrary implements IFooGalleryDatasource { |
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/** |
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* @var FooGallery |
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*/ |
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private $foogallery; |
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/** |
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* Sets the FooGallery object we are dealing with |
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* |
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* @param $foogallery FooGallery |
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*/ |
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public function setGallery( $foogallery ) { |
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$this->foogallery = $foogallery; |
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} |
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function __construct() { |
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add_filter( 'foogallery_attachment_get_posts_args', array( $this, 'apply_query_args' ) ); |
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} |
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/** |
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* Returns the number of attachments used from the media library |
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* @return int |
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*/ |
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public function getCount() { |
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return sizeof( $this->foogallery->attachment_ids ); |
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} |
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/** |
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* Returns a serialized string that represents the media in the datasource. |
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* This string is persisted when saving a FooGallery |
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* |
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* @return string |
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*/ |
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public function getSerializedData() { |
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if ( is_array( $this->foogallery->attachment_ids ) ) { |
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return implode( ',', $this->foogallery->attachment_ids ); |
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} |
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return ''; |
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} |
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/** |
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* Returns an array of FooGalleryAttachments from the datasource |
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* @return array(FooGalleryAttachment) |
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*/ |
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public function getAttachments() { |
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$attachments = array(); |
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if ( ! empty( $this->foogallery->attachment_ids ) ) { |
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add_action( 'pre_get_posts', array( $this, 'force_gallery_ordering' ), 99 ); |
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$attachment_query_args = apply_filters( 'foogallery_attachment_get_posts_args', array( |
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'post_type' => 'attachment', |
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'posts_per_page' => -1, |
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'post__in' => $this->foogallery->attachment_ids, |
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'orderby' => foogallery_sorting_get_posts_orderby_arg( $this->foogallery->sorting ), |
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'order' => foogallery_sorting_get_posts_order_arg( $this->foogallery->sorting ) |
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) ); |
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$attachment_posts = get_posts( $attachment_query_args ); |
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remove_action( 'pre_get_posts', array( $this, 'force_gallery_ordering' ), 99 ); |
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$attachments = array_map( array( $this, 'build_attachment' ), $attachment_posts ); |
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} |
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return $attachments; |
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} |
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function apply_query_args( $query_args ) { |
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global $current_foogallery_arguments; |
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//check if a limit has been applied |
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if ( isset( $current_foogallery_arguments ) && isset( $current_foogallery_arguments['limit'] ) ) { |
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$query_args['posts_per_page'] = $current_foogallery_arguments['limit']; |
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} |
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//check if an offset has been applied |
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if ( isset( $current_foogallery_arguments ) && isset( $current_foogallery_arguments['offset'] ) ) { |
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$query_args['offset'] = $current_foogallery_arguments['offset']; |
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} |
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return $query_args; |
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} |
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function build_attachment( $attachment_post ) { |
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$attachment = apply_filters( 'foogallery_attachment_load', FooGalleryAttachment::get( $attachment_post ), $this->foogallery ); |
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return $attachment; |
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} |
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/** |
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* This forces the attachments to be fetched using the correct ordering. |
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* Some plugins / themes override this globally for some reason, so this is a preventative measure to ensure sorting is correct |
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* @param $query WP_Query |
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*/ |
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public function force_gallery_ordering( $query ) { |
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//only care about attachments |
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if ( array_key_exists( 'post_type', $query->query ) && |
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'attachment' === $query->query['post_type'] ) { |
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$query->set( 'orderby', foogallery_sorting_get_posts_orderby_arg( $this->foogallery->sorting ) ); |
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$query->set( 'order', foogallery_sorting_get_posts_order_arg( $this->foogallery->sorting ) ); |
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} |
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} |
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/** |
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* Returns the featured FooGalleryAttachment from the datasource |
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* @return bool|FooGalleryAttachment |
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*/ |
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public function getFeaturedAttachment() { |
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$attachment_id = $this->find_featured_attachment_id(); |
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if ( $attachment_id ) { |
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return FooGalleryAttachment::get_by_id( $attachment_id ); |
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} |
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return false; |
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} |
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private function find_featured_attachment_id() { |
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$attachment_id = get_post_thumbnail_id( $this->foogallery->ID ); |
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//if no featured image could be found then get the first image |
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if ( ! $attachment_id && $this->foogallery->attachment_ids ) { |
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$attachment_id_values = array_values( $this->foogallery->attachment_ids ); |
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$attachment_id = array_shift( $attachment_id_values ); |
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} |
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return $attachment_id; |
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} |
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} |
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} |
fooplugins /
foogallery
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