Merge pull request #972 from CodeProKid/bug/961/many-queries-from-mod…

…el-layer

Allow developers to short circuit potentially expensive is_private ch…

src/Model/Model.php

@@ -222,9 +222,32 @@ public function get_visibility() {
 			 */
 			$protected_cap = apply_filters( 'graphql_restricted_data_cap', $this->restricted_cap, $this->get_model_name(), $this->data, $this->visibility, $this->owner, $this->current_user );
 
+			/**
+			 * Filter to short circuit default is_private check for the model. This is expensive in some cases so
+			 * this filter lets you prevent this from running by returning a true or false value.
+			 *
+			 * @param string      $model_name   Name of the model the filter is currently being executed in
+			 * @param mixed       $data         The un-modeled incoming data
+			 * @param string|null $visibility   The visibility that has currently been set for the data at this point
+			 * @param null|int    $owner        The user ID for the owner of this piece of data
+			 * @param WP_User     $current_user The current user for the session
+			 *
+			 * @return bool|null
+			 */
+			$pre_is_private = apply_filters( 'graphql_pre_model_data_is_private', null, $this->get_model_name(), $this->data, $this->visibility, $this->owner, $this->current_user );
+
+			// If 3rd party code has not filtered this, use the Models default logic to determine
+			// whether the model should be considered private
+			if ( null !== $pre_is_private ) {
+				$is_private = $pre_is_private;
+			} else {
+				$is_private = $this->is_private();
+			}
+
 			/**
 			 * Filter to determine if the data should be considered private or not
 			 *
+			 * @param boolean     $is_private   Whether the model is private
 			 * @param string      $model_name   Name of the model the filter is currently being executed in
 			 * @param mixed       $data         The un-modeled incoming data
 			 * @param string|null $visibility   The visibility that has currently been set for the data at this point
@@ -233,7 +256,7 @@ public function get_visibility() {
 			 *
 			 * @return bool
 			 */
-			$is_private = apply_filters( 'graphql_data_is_private', $this->is_private(), $this->get_model_name(), $this->data, $this->visibility, $this->owner, $this->current_user );
+			$is_private = apply_filters( 'graphql_data_is_private', $is_private, $this->get_model_name(), $this->data, $this->visibility, $this->owner, $this->current_user );
 
 			if ( true === $is_private ) {
 				$this->visibility = 'private';