working on issue #527

sails/src/assets/app/i18n/en-gb.json

@@ -36,6 +36,7 @@
     "birthdate": "Birthdate",
     "cancel": "Cancel",
     "cannot_delete_method": "Method could not be deleted, maybe due to existing recorded sessions.",
+    "cannot_delete_instruction": "Instruction could not be deleted, maybe due to existing recorded sessions.",
     "categories": "Categories",
     "category_pictograms": "Category's pictograms",
     "change_password": "Change password",

sails/src/assets/app/i18n/es-es.json

@@ -36,6 +36,7 @@
     "birthdate": "Fecha de nacimiento",
     "cancel": "Cancelar",
     "cannot_delete_method": "No se pudo eliminar el método, tal vez porque existen sesiones asociadas.",
+    "cannot_delete_instruction": "No se pudo eliminar la instrucción, tal vez porque existen sesiones asociadas.",
     "categories": "Categorías",
     "category_pictograms": "Pictogramas de la categoría",
     "change_password": "Cambiar contraseña",

sails/src/assets/scripts/modules/student/controllers/instructions.js

@@ -291,6 +291,13 @@ dashboardControllers.controller('StudentInstructionsCtrl', function StudentInstr
       })
       .error(function(data, status, headers, config) {
         console.log("Error from API: " + data.error);
+        var myToastMsg = $translate('cannot_delete_instruction').then(function (translation) {
+        // Show message
+        ngToast.warning({
+          content: translation,
+          timeout: 6000 // By default 4000
+        });
+      });
       });
   };