- Add filter to graphql_resolve_field to pass the Node down to the template resolver so ACF can properly resolve fields on the template object using the passed down "node" as the object to resolve fields from.

Author: jasonbahl

src/WPGraphQLAcf.php

@@ -1,5 +1,6 @@
 <?php
 
+use GraphQL\Type\Definition\ResolveInfo;
 use WPGraphQL\Registry\TypeRegistry;
 
 use WPGraphQL\Acf\Admin\PostTypeRegistration;
@@ -40,6 +41,11 @@ public function init(): void {
 
 		add_filter( 'graphql_data_loaders', [ $this, 'register_loaders' ], 10, 2 );
 		add_filter( 'graphql_resolve_node_type', [ $this, 'resolve_acf_options_page_node' ], 10, 2 );
+		/**
+		 * This filters any field that returns the `ContentTemplate` type
+		 * to pass the source node down to the template for added context
+		 */
+		add_filter( 'graphql_resolve_field', [ $this, 'page_template_resolver' ], 10, 9 );
 
 		do_action( 'wpgraphql/acf/init' );
 	}
@@ -211,4 +217,32 @@ public function show_graphql_debug_messages(): void {
 		}
 	}
 
+		/**
+		 * Add the $source node as the "node" passed to the resolver so ACF Fields assigned to Templates can resolve
+		 * using the $source node as the object to get meta from.
+		 *
+		 * @param mixed           $result         The result of the field resolution
+		 * @param mixed           $source         The source passed down the Resolve Tree
+		 * @param array           $args           The args for the field
+		 * @param \WPGraphQL\AppContext $context The AppContext passed down the ResolveTree
+		 * @param \GraphQL\Type\Definition\ResolveInfo $info The ResolveInfo passed down the ResolveTree
+		 * @param string          $type_name      The name of the type the fields belong to
+		 * @param string          $field_key      The name of the field
+		 * @param \GraphQL\Type\Definition\FieldDefinition $field The Field Definition for the resolving field
+		 * @param mixed           $field_resolver The default field resolver
+		 *
+		 * @return mixed
+		 */
+	public function page_template_resolver( $result, $source, $args, \WPGraphQL\AppContext $context, ResolveInfo $info, string $type_name, string $field_key, \GraphQL\Type\Definition\FieldDefinition $field, $field_resolver ) {
+		if ( strtolower( 'ContentTemplate' ) !== strtolower( $info->returnType ) ) {
+			return $result;
+		}
+
+		if ( is_array( $result ) && ! isset( $result['node'] ) && ! empty( $source ) ) {
+			$result['node'] = $source;
+		}
+
+		return $result;
+	}
+
 }