Fix wrong field in where in /class

src/libs/routes/class.js

@@ -159,7 +159,7 @@ rqfCount.addField({
     where: {
         relation: '=',
         type: 'integer',
-        field: 'location_id'
+        field: 'localizacao_id'
     }
 }).addValue({
   name:'education_level',