tidied up comments in controller

modules/roblib_search_eds/src/Controller/RoblibSearchEdsController.php

@@ -11,22 +11,17 @@ use Drupal\roblib_search_eds\Lib\EBSCOAPI;
 class RoblibSearchEdsController extends ControllerBase {
 
   /**
-   * Display the markup.
+   * Print JSON.
    *
-   * @return array
-   *   A renderable array.
    */
   public function articleResults($query = NULL) {
     print $this->eds_get_results($query, 'Articles');
-    exit();
-    
+    exit();    
   }
 
   /**
-   * Display the markup.
+   * Print JSON.
    *
-   * @return array
-   *   A renderable array.
    */
   public function bookResults($query = NULL) {
     print $this->eds_get_results($query, 'Books');
@@ -34,10 +29,13 @@ class RoblibSearchEdsController extends ControllerBase {
   }
 
   /**
-   *
+   * Query EBSCO using the EDS API.
    * @param string $query
+   *   The search term(s) to send to EBSCO.
+   * @param string type
+   *   The type of search, either Books or Articles.
    * @return string
-   *   json string
+   *   A JSON string
    */
   function eds_get_results($query = NULL, $type = 'Articles') {
     //drupal_add_css(drupal_get_path('module', 'roblib_search_eds') . '/css/roblib_search_eds.theme.css');
@@ -69,8 +67,7 @@ class RoblibSearchEdsController extends ControllerBase {
 
     $output = $eds_api->apiSearch($search, $filters, 1, $number_per_page);
     $output['is_local_ip'] = $is_local_ip;
-    print json_encode($output);
-    exit();
+    return json_encode($output);
   }
 
   /**