[WIP] feat: harden post type usage and establish relationships between listings and posts/pages

includes/class-newspack-listings-blocks.php

@@ -80,6 +80,8 @@ public static function manage_editor_assets() {
 				'post_type_label' => get_post_type_object( $post_type )->labels->singular_name,
 				'post_type'       => $post_type,
 				'post_types'      => $post_types,
+				'currency'        => function_exists( 'get_woocommerce_currency' ) ? get_woocommerce_currency() : __( 'USD', 'newspack-listings' ),
+				'currencies'      => function_exists( 'get_woocommerce_currencies' ) ? get_woocommerce_currencies() : [ 'USD' => __( 'United States (US) dollar', 'newspack-listings' ) ],
 
 				// If we don't have ANY listings that can be added to a list yet, alert the editor so we can show messaging.
 				'no_listings'     => 0 === $total_count,

includes/class-newspack-listings-core.php

@@ -507,6 +507,29 @@ public static function get_meta_fields( $post_type = null, $field_names_only = f
 					},
 				],
 			],
+			'newspack_listings_price'            => [
+				'post_types' => [
+					self::NEWSPACK_LISTINGS_POST_TYPES['marketplace'],
+				],
+				'label'      => __( 'Price', 'newspack-listings' ),
+				'source'     => [
+					'blockName' => 'newspack-listings/price',
+					'attr'      => 'price',
+					'single'    => true,
+				],
+				'settings'   => [
+					'object_subtype'    => $post_type,
+					'default'           => '',
+					'description'       => __( 'Price for this listing.', 'newspack-listings' ),
+					'type'              => 'string',
+					'sanitize_callback' => 'sanitize_text_field',
+					'single'            => true,
+					'show_in_rest'      => true,
+					'auth_callback'     => function() {
+						return current_user_can( 'edit_posts' );
+					},
+				],
+			],
 			'newspack_listings_hide_author'      => [
 				'post_types' => [
 					self::NEWSPACK_LISTINGS_POST_TYPES['event'],