added handling when credentials not found

Author: arlemi

services/language_translation/v2.html

@@ -22,7 +22,7 @@
     </div>
     <div id="credentials-not-found" class="form-row">
         <div class="form-tips">
-            <i class="fa fa-question-circle"></i><b> Could not retrieve models. </b> <span id="try-again">Click here to ry again.</span>
+            <i class="fa fa-question-circle"></i><b> Could not bind to service. </b> Try other credentials?
         </div>
     </div>
     <div class="form-row">
@@ -124,10 +124,6 @@
 
 (function () {
 
-  $('span#try-again').on('click', function() {
-    oneditprepare();
-  })
-
   // sorting functions
   function onlyUnique(value, index, self) {
     return self.indexOf(value) === index;
@@ -330,28 +326,31 @@
   }
 
   function getModels() {
-    $.getJSON('watson-translate/models/').done(function (data) {
+    var username = $('input#node-input-username').val();
+    var password = $('input#node-input-password').val();
+    $.getJSON('watson-translate/models/', {un: username,pwd: password}).done(function (data) {
       models = data.models;
-      handlersUI();
       selectAction();
     }).fail(function (err) {
       console.log(err);
+      $('#credentials-not-found').show();
     }).always(function () {});
   }
 
   function oneditprepare() {
+    console.log("zfsqdfqsg");
+    console.log(models);
     var node = this;
+    handlersUI();
     $.getJSON('watson-translate/vcap/')
       .done(function (sids) {
-        console.log(sids);
         $('.credentials').toggle(!sids);
         if (first_launch || !models) {
           $('#credentials-not-found').hide();
           getModels();
           first_launch = false;
         } else if (models) {
           $('#credentials-not-found').hide();
-          handlersUI();
           selectAction();
         } else {
           $('#credentials-not-found').show();

services/language_translation/v2.js

@@ -37,11 +37,19 @@ module.exports = function (RED) {
   });
 
   RED.httpAdmin.get('/watson-translate/models', function (req, res) {
-    language_translation = watson.language_translation({
-      username: username,
-      password: password,
-      version: 'v2'
-    });
+    if(!username && !password) {
+      language_translation = watson.language_translation({
+        username: req.query.un,
+        password: req.query.pwd,
+        version: 'v2'
+      });     
+    } else {
+      language_translation = watson.language_translation({
+        username: username,
+        password: password,
+        version: 'v2'
+      });    
+    }
     language_translation.getModels({}, function (err, models) {
       if (err) {
         res.json(err);
@@ -69,6 +77,9 @@ module.exports = function (RED) {
   });
 
   function SMTNode(config) {
+    RED.nodes.createNode(this, config);
+    var node = this;
+
     this.on('input', function (msg) {
       var message = '';
 
@@ -163,9 +174,6 @@ module.exports = function (RED) {
       }
     });
 
-    RED.nodes.createNode(this, config);
-    var node = this;
-
     this.doTranslate = function (msg, model_id) {
       node.status({
         fill: 'blue',