From 819c30a8b15fab96a6bb4c27e711d035244bb8e6 Mon Sep 17 00:00:00 2001
From: andris-sevcenko <asevcenko@gmail.com>
Date: Wed, 16 Oct 2019 20:18:48 +0300
Subject: [PATCH] Post-merge conflict cleanup.

---
 src/controllers/GraphqlController.php |  2 +-
 src/services/Gql.php                  | 74 +++++++++++++++++++++++++++
 2 files changed, 75 insertions(+), 1 deletion(-)

diff --git a/src/controllers/GraphqlController.php b/src/controllers/GraphqlController.php
index 7d8d44d8f71..708f1c97747 100644
--- a/src/controllers/GraphqlController.php
+++ b/src/controllers/GraphqlController.php
@@ -143,7 +143,7 @@ public function actionApi(): Response
 
         try {
             $schemaDef = $gqlService->getSchemaDef($schema, $devMode || StringHelper::contains($query, '__schema'));
-            $result = $gqlService->executeQuery($schemaDef, $query, $variables, $operationName);
+            $result = $gqlService->executeQuery($schemaDef, $query, $variables, $operationName, $devMode);
         } catch (\Throwable $e) {
             Craft::$app->getErrorHandler()->logException($e);
 
diff --git a/src/services/Gql.php b/src/services/Gql.php
index 0332d84f7eb..9049b4d5bbb 100644
--- a/src/services/Gql.php
+++ b/src/services/Gql.php
@@ -12,6 +12,7 @@
 use craft\db\Table;
 use craft\errors\GqlException;
 use craft\events\DefineGqlValidationRulesEvent;
+use craft\events\ExecuteGqlQueryEvent;
 use craft\events\RegisterGqlDirectivesEvent;
 use craft\events\RegisterGqlPermissionsEvent;
 use craft\events\RegisterGqlQueriesEvent;
@@ -158,6 +159,49 @@ class Gql extends Component
      */
     const EVENT_DEFINE_GQL_VALIDATION_RULES = 'defineGqlValidationRules';
 
+    /**
+     * @event ExecuteGqlQueryEvent The event that is triggered before executing the GraphQL query.
+     *
+     * Plugins get a chance to modify the query or return a cached response.
+     *
+     * ---
+     * ```php
+     * use craft\events\ExecuteGqlQueryEvent;
+     * use craft\services\GraphQl;
+     * use yii\base\Event;
+     *
+     * Event::on(Gql::class,
+     *     Gql::EVENT_BEFORE_EXECUTE_GQL_QUERY,
+     *     function(ExecuteGqlQueryEvent $event) {
+     *         // Set the result from cache
+     *         $event->result = ...;
+     *     }
+     * );
+     * ```
+     */
+    const EVENT_BEFORE_EXECUTE_GQL_QUERY = 'beforeExecuteGqlQuery';
+
+    /**
+     * @event ExecuteGqlQueryEvent The event that is triggered after executing the GraphQL query.
+     *
+     * Plugins get a chance to do sometheing after a performed GraphQL query.
+     *
+     * ---
+     * ```php
+     * use craft\events\ExecuteGqlQueryEvent;
+     * use craft\services\GraphQl;
+     * use yii\base\Event;
+     *
+     * Event::on(Gql::class,
+     *     Gql::EVENT_AFTER_EXECUTE_GQL_QUERY,
+     *     function(ExecuteGqlQueryEvent $event) {
+     *         // Cache the results from $event->result or just tweak them
+     *     }
+     * );
+     * ```
+     */
+    const EVENT_AFTER_EXECUTE_GQL_QUERY = 'afterExecuteGqlQuery';
+
     /**
      * Currently loaded schema definition
      *
@@ -272,6 +316,36 @@ public function getValidationRules($debug = false) {
         return array_values($event->validationRules);
     }
 
+    /**
+     * Execute a GraphQL query for a given schema definition.
+     *
+     * @param Schema $schema The schema definition to use.
+     * @param string $query The query string to execute.
+     * @param array|null $variables The variables to use.
+     * @param string|null $operationName The operation name.
+     * @param bool $debugMode Whether debug mode validations rules should be used for GraphQL.
+     * @return array
+     */
+    public function executeQuery(Schema $schemaDef, string $query, $variables, $operationName, $debugMode = false): array
+    {
+        $event = new ExecuteGqlQueryEvent([
+            'schemaDef' => $schemaDef,
+            'query' => $query,
+            'variables' => $variables,
+            'operationName' => $operationName,
+        ]);
+
+        $this->trigger(self::EVENT_BEFORE_EXECUTE_GQL_QUERY, $event);
+
+        if ($event->result === null) {
+            $event->result = GraphQL::executeQuery($schemaDef, $query, $event->rootValue, $event->context, $variables, $operationName, null, $this->getValidationRules($debugMode))->toArray(true);
+        }
+
+        $this->trigger(self::EVENT_AFTER_EXECUTE_GQL_QUERY, $event);
+
+        return $event->result;
+    }
+
     /**
      * Returns the active GraphQL schema.
      *