FIX: Disable save button when new group form is empty.

https://meta.discourse.org/t/adding-owners-members-ux-is-inconsistent-and-misleading/58084/26?u=tgxworld

app/assets/javascripts/discourse/components/groups-form-profile-fields.js.es6

@@ -4,13 +4,18 @@ import InputValidation from 'discourse/models/input-validation';
 import debounce from 'discourse/lib/debounce';
 
 export default Ember.Component.extend({
-  saving: null,
+  disableSave: null,
   nameInput: null,
 
   didInsertElement() {
     this._super();
     const name = this.get('model.name');
-    if (name) this.set("nameInput", name);
+
+    if (name) {
+      this.set("nameInput", name);
+    } else {
+      this.set('disableSave', true);
+    }
   },
 
   @computed('basicNameValidation', 'uniqueNameValidation')
@@ -58,7 +63,7 @@ export default Ember.Component.extend({
           reason: I18n.t('admin.groups.new.name.available')
         }));
 
-        this.set('saving', false);
+        this.set('disableSave', false);
         this.set('model.name', this.get('nameInput'));
       } else {
         let reason;
@@ -75,7 +80,7 @@ export default Ember.Component.extend({
   }, 500),
 
   _failedInputValidation(reason) {
-    this.set('saving', true);
+    this.set('disableSave', true);
 
     const options = { failed: true };
     if (reason) options.reason = reason;

app/assets/javascripts/discourse/templates/group/manage/profile.hbs

@@ -1,4 +1,4 @@
 <form class="groups-form form-vertical">
-  {{groups-form-profile-fields model=model saving=saving}}
+  {{groups-form-profile-fields model=model disableSave=saving}}
   {{group-manage-save-button model=model saving=saving}}
 </form>

app/assets/javascripts/discourse/templates/groups/new.hbs

@@ -4,7 +4,7 @@
   <hr/>
 
   <form class="groups-form form-vertical">
-    {{#groups-form-profile-fields model=model saving=saving}}
+    {{#groups-form-profile-fields model=model disableSave=saving}}
       <div class="control-group">
         <label class="control-label" for="owner-selector">{{i18n 'admin.groups.add_owners'}}</label>