Merge pull request #196 from jeherve/fix/fatal-api

Avoid Fatal Errors when Core REST API classes don't exist.

includes/api/class-sp-rest-posts-controller.php

@@ -1,8 +1,10 @@
 <?php
 
+if ( class_exists( 'WP_REST_Posts_Controller' ) ) {
 	class SP_REST_Posts_Controller extends WP_REST_Posts_Controller {
 		public function __construct( $post_type ) {
 			parent::__construct( $post_type );
 			$this->namespace = 'sportspress/v2';
 		}
 	}
+}

includes/api/class-sp-rest-terms-controller.php

@@ -1,8 +1,10 @@
 <?php
 
+if ( class_exists( 'WP_REST_Terms_Controller' ) ) {
 	class SP_REST_Terms_Controller extends WP_REST_Terms_Controller {
 		public function __construct( $taxonomy ) {
 			parent::__construct( $taxonomy );
 			$this->namespace = 'sportspress/v2';
 		}
 	}
+}