Handle id for which there is no wizard

assets/javascripts/wizard/routes/custom-index.js.es6

@@ -1,7 +1,7 @@
 export default Ember.Route.extend({
   beforeModel() {
     const appModel = this.modelFor('custom');
-    if (appModel.permitted && !appModel.completed && appModel.start) {
+    if (appModel && appModel.permitted && !appModel.completed && appModel.start) {
       this.replaceWith('custom.step', appModel.start);
     }
   },
@@ -11,13 +11,17 @@ export default Ember.Route.extend({
   },
 
   setupController(controller, model) {
-    const completed = model.get('completed');
-    const permitted = model.get('permitted');
-    const minTrust = model.get('min_trust');
-    controller.setProperties({
-      completed,
-      notPermitted: !permitted,
-      minTrust
-    });
+    if (model) {
+      const completed = model.get('completed');
+      const permitted = model.get('permitted');
+      const minTrust = model.get('min_trust');
+      controller.setProperties({
+        completed,
+        notPermitted: !permitted,
+        minTrust
+      });
+    } else {
+      controller.set('noWizard', true);
+    }
   }
 });

assets/javascripts/wizard/routes/custom.js.es6

@@ -19,7 +19,9 @@ export default Ember.Route.extend({
     const background = model ? model.get('background') : 'AliceBlue';
     Ember.run.scheduleOnce('afterRender', this, function(){
       $('body.custom-wizard').css('background', background);
-      $('#custom-wizard-main').addClass(model.get('id').dasherize());
+      if (model) {
+        $('#custom-wizard-main').addClass(model.get('id').dasherize());
+      }
     });
 
     controller.setProperties({

assets/javascripts/wizard/templates/custom.index.hbs

@@ -4,4 +4,7 @@
   {{#if notPermitted}}
     {{i18n 'wizard.not_permitted' level=minTrust}}
   {{/if}}
+  {{#if noWizard}}
+    {{i18n 'wizard.none'}}
+  {{/if}}
 {{/if}}

config/locales/client.en.yml

@@ -153,3 +153,4 @@ en:
     wizard:
       completed: "You have completed this wizard."
       not_permitted: "You need to be trust level {{level}} or higher to access this wizard."
+      none: "There is no wizard here."