[Final Radiological Reivew] Error handling of 'radiology_review' instrument (aces#2694)

Add better error handling for radiology_review instrument being missing in the final_radiological_review module.

Author: Jkat

modules/final_radiological_review/php/NDB_Form_final_radiological_review.class.inc

@@ -139,6 +139,7 @@ class NDB_Form_final_radiological_review extends NDB_Form
      * information from the final_radiological_review table for
      * smarty
      *
+     * @throws LorisException
      * @return array defaults for smarty to use
      */
     function _getDefaults()
@@ -171,6 +172,13 @@ class NDB_Form_final_radiological_review extends NDB_Form
                 );
             }
 
+            if ($DB->tableExists('radiology_review') === false) {
+                throw new LorisException(
+                    "Table 'radiology_review' does not exist."
+                    . " Please have this instrument set up in order to use this module properly."
+                );
+            }
+
             $original_review = $DB->pselectRow(
                 "SELECT r.Scan_done as Original_Scan_Done, 
                 r.review_results as Original_Review_Results, 

modules/final_radiological_review/php/NDB_Menu_Filter_final_radiological_review.class.inc

@@ -139,6 +139,14 @@ class NDB_Menu_Filter_final_radiological_review extends NDB_Menu_Filter
             WHEN r.PVS <> r.PVS2 THEN 'prim_second'
             ELSE 'false' END)";
 
+        $DB = Database::singleton();
+        if ($DB->tableExists('radiology_review') === false) {
+            throw new LorisException(
+                "Table 'radiology_review' does not exist."
+                . " Please have this instrument set up in order to use this module properly."
+            );
+        }
+
         $this->query = " FROM radiology_review orig
             LEFT JOIN final_radiological_review r ON (r.CommentID=orig.CommentID)
             JOIN flag f ON (f.CommentID=orig.CommentID)