Updates deprecated DataSource::resolve_post_object (#697)

* Updates deprecated DataSource::resolve_post_object

* chore: Unneeded class declarations removed.

---------

Co-authored-by: Geoff Taylor <[email protected]>

Author: lstellway

includes/type/interface/class-product.php

@@ -13,7 +13,6 @@
 use GraphQL\Error\UserError;
 use GraphQLRelay\Relay;
 use WPGraphQL\AppContext;
-use WPGraphQL\Data\DataSource;
 use WPGraphQL\WooCommerce\Data\Factory;
 use WPGraphQL\WooCommerce\WP_GraphQL_WooCommerce;
 
@@ -189,7 +188,7 @@ public static function get_fields() {
 					if ( empty( $source->image_id ) || ! absint( $source->image_id ) ) {
 						return null;
 					}
-					return DataSource::resolve_post_object( $source->image_id, $context );
+					return $context->get_loader( 'post' )->load_deferred( $source->image_id );
 				},
 			],
 			'onSale'            => [

includes/type/object/class-product-category-type.php

@@ -11,7 +11,6 @@
 namespace WPGraphQL\WooCommerce\Type\WPObject;
 
 use WPGraphQL\AppContext;
-use WPGraphQL\Data\DataSource;
 
 /**
  * Class - Product_Category_Type
@@ -31,7 +30,7 @@ public static function register_fields() {
 					'resolve'     => function( $source, array $args, AppContext $context ) {
 						$thumbnail_id = get_term_meta( $source->term_id, 'thumbnail_id', true );
 						return ! empty( $thumbnail_id )
-							? DataSource::resolve_post_object( $thumbnail_id, $context )
+							? $context->get_loader( 'post' )->load_deferred( $thumbnail_id )
 							: null;
 					},
 				],

includes/type/object/class-product-variation-type.php

@@ -13,7 +13,6 @@
 use GraphQL\Error\UserError;
 use GraphQLRelay\Relay;
 use WPGraphQL\AppContext;
-use WPGraphQL\Data\DataSource;
 use WPGraphQL\WooCommerce\Data\Factory;
 
 /**
@@ -75,8 +74,8 @@ public static function register() {
 						],
 						'resolve'     => function( $source, $args ) {
 							if ( isset( $args['format'] ) && 'raw' === $args['format'] ) {
-								// @codingStandardsIgnoreLine.
-								return $source->priceRaw;
+                                // @codingStandardsIgnoreLine.
+                                return $source->priceRaw;
 							} else {
 								return $source->price;
 							}
@@ -93,11 +92,11 @@ public static function register() {
 						],
 						'resolve'     => function( $source, $args ) {
 							if ( isset( $args['format'] ) && 'raw' === $args['format'] ) {
-								// @codingStandardsIgnoreLine.
-								return $source->regularPriceRaw;
+                                // @codingStandardsIgnoreLine.
+                                return $source->regularPriceRaw;
 							} else {
-								// @codingStandardsIgnoreLine.
-								return $source->regularPrice;
+                                // @codingStandardsIgnoreLine.
+                                return $source->regularPrice;
 							}
 						},
 					],
@@ -112,11 +111,11 @@ public static function register() {
 						],
 						'resolve'     => function( $source, $args ) {
 							if ( isset( $args['format'] ) && 'raw' === $args['format'] ) {
-								// @codingStandardsIgnoreLine.
-								return $source->salePriceRaw;
+                                // @codingStandardsIgnoreLine.
+                                return $source->salePriceRaw;
 							} else {
-								// @codingStandardsIgnoreLine.
-								return $source->salePrice;
+                                // @codingStandardsIgnoreLine.
+                                return $source->salePrice;
 							}
 						},
 					],
@@ -232,7 +231,9 @@ public static function register() {
 						'type'        => 'MediaItem',
 						'description' => __( 'Product variation main image', 'wp-graphql-woocommerce' ),
 						'resolve'     => function( $source, array $args, AppContext $context ) {
-							return ! empty( $source->image_id ) ? DataSource::resolve_post_object( $source->image_id, $context ) : null;
+							return ! empty( $source->image_id )
+								? $context->get_loader( 'post' )->load_deferred( $source->image_id )
+								: null;
 						},
 					],