solving problem with picto expressions (issue #478)

sails/src/api/models/Grid.js

@@ -89,8 +89,8 @@ module.exports = {
        .populate('tags', {lang: student.lang})
        .then((picto) => {
 
-         // check picto has expressions associated in student language
-         if (picto.expressions.length == 0 || picto.expressions[0].text.length == 0)
+         // check picto has expressions associated manually or associated in student language
+         if (!picto.attributes.expression & (picto.expressions.length == 0 || picto.expressions[0].text.length == 0))
            stuPicto.attributes.expression = sails.__({
              phrase: 'undef_label',
              locale: student.lang});

sails/src/api/policies/isAdmin.js

@@ -3,8 +3,8 @@ module.exports = function isAdmin (req, res, next) {
   //
   // Only if the user that has connected is global administrator (Yotta employee)
   //
-  if (!req.token || req.token.role !== 'admin')
-    res.json(401, {error: 'Access denied'});
+  if (!req.token || !req.token.isAdmin)
+    res.json(401, {error: 'Access denied. You\'re not admin!'});
 
   // Finally, if the user has a clean record, we'll call the `next()` function
   // to let them through to the next policy or our controller