UX: user preferences allows users to choose which title to use from their badges and groups

app/assets/javascripts/discourse/controllers/preferences/account.js.es6

@@ -7,12 +7,13 @@ import { popupAjaxError } from 'discourse/lib/ajax-error';
 
 export default Ember.Controller.extend(CanCheckEmails, PreferencesTabController, {
 
-  saveAttrNames: ['name'],
+  saveAttrNames: ['name', 'title'],
 
   canEditName: setting('enable_names'),
   canSaveUser: true,
 
   newNameInput: null,
+  newTitleInput: null,
 
   passwordProgress: null,
 
@@ -30,9 +31,9 @@ export default Ember.Controller.extend(CanCheckEmails, PreferencesTabController,
     return I18n.t(this.siteSettings.full_name_required ? 'user.name.instructions_required' : 'user.name.instructions');
   },
 
-  @computed("model.has_title_badges")
+  @computed('model.availableTitles')
-  canSelectTitle(hasTitleBadges) {
+  canSelectTitle(availableTitles) {
-    return this.siteSettings.enable_badges && hasTitleBadges;
+    return availableTitles.length > 0;
   },
 
   @computed()
@@ -52,6 +53,7 @@ export default Ember.Controller.extend(CanCheckEmails, PreferencesTabController,
       const model = this.get('model');
 
       model.set('name', this.get('newNameInput'));
+      model.set('title', this.get('newTitleInput'));
 
       return model.save(this.get('saveAttrNames')).then(() => {
         this.set('saved', true);

app/assets/javascripts/discourse/models/user.js.es6

@@ -218,6 +218,7 @@ const User = RestModel.extend({
       'website',
       'location',
       'name',
+      'title',
       'locale',
       'custom_fields',
       'user_fields',
@@ -569,6 +570,25 @@ const User = RestModel.extend({
 
   canManageGroup(group) {
     return group.get('automatic') ? false : (this.get('admin') || group.get('is_group_owner'));
+  },
+
+  @computed('groups.@each.title', 'badges.@each')
+  availableTitles() {
+    let titles = [];
+
+    _.each(this.get('groups'), group => {
+      if (group.get('title')) {
+        titles.push(group.get('title'));
+      }
+    });
+
+    _.each(this.get('badges'), badge => {
+      if (badge.get('allow_title')) {
+        titles.push(badge.get('name'));
+      }
+    });
+
+    return titles;
   }
 });
 

app/assets/javascripts/discourse/routes/preferences-account.js.es6

@@ -1,13 +1,23 @@
+import UserBadge from 'discourse/models/user-badge';
 import RestrictedUserRoute from "discourse/routes/restricted-user";
 
 export default RestrictedUserRoute.extend({
   showFooter: true,
 
+  model: function() {
+    const user = this.modelFor('user');
+    return UserBadge.findByUsername(this.modelFor('user').get('username')).then(userBadges => {
+      user.set('badges', userBadges.map(ub => ub.badge));
+      return user;
+    });
+  },
+
   setupController(controller, user) {
     controller.reset();
     controller.setProperties({
       model: user,
-      newNameInput: user.get('name')
+      newNameInput: user.get('name'),
+      newTitleInput: user.get('title')
     });
   }
 });

app/assets/javascripts/discourse/templates/preferences/account.hbs

@@ -100,8 +100,10 @@
   <div class="control-group pref-title">
     <label class="control-label">{{i18n 'user.title.title'}}</label>
     <div class="controls">
-      <span class="static">{{model.title}}</span>
+      {{combo-box
-      {{#link-to "preferences.badgeTitle" class="btn btn-small btn-icon pad-left no-text"}}{{d-icon "pencil"}}{{/link-to}}
+        value=newTitleInput
+        content=model.availableTitles
+        none="user.title.none"}}
     </div>
   </div>
 {{/if}}

config/locales/client.en.yml

@@ -1014,6 +1014,7 @@ en:
         header_title: "profile, messages, bookmarks and preferences"
       title:
         title: "Title"
+        none: "(none)"
 
       filters:
         all: "All"

lib/guardian.rb

@@ -215,8 +215,11 @@ class Guardian
     can_administer?(user) && !user.moderator?
   end
 
-  def can_grant_title?(user)
+  def can_grant_title?(user, title = nil)
-    user && is_staff?
+    return true if user && is_staff?
+    return false if user != @user
+    return true if user.badges.where(name: title, allow_title: true).exists?
+    user.groups.where(title: title).exists?
   end
 
   def can_change_primary_group?(user)

spec/components/guardian_spec.rb

@@ -2186,6 +2186,35 @@ describe Guardian do
     it 'is false without a user to look at' do
       expect(Guardian.new(admin).can_grant_title?(nil)).to be_falsey
     end
+
+    context 'with title argument' do
+      let(:title_badge) { Fabricate(:badge, name: 'Helper', allow_title: true) }
+      let(:no_title_badge) { Fabricate(:badge, name: 'Writer', allow_title: false) }
+      let(:group) { Fabricate(:group, title: 'Groupie') }
+
+      it 'returns true if title belongs to a badge that user has' do
+        BadgeGranter.grant(title_badge, user)
+        expect(Guardian.new(user).can_grant_title?(user, title_badge.name)).to eq(true)
+      end
+
+      it "returns false if title belongs to a badge that user doesn't have" do
+        expect(Guardian.new(user).can_grant_title?(user, title_badge.name)).to eq(false)
+      end
+
+      it "returns false if title belongs to a badge that user has but can't be used as a title" do
+        BadgeGranter.grant(no_title_badge, user)
+        expect(Guardian.new(user).can_grant_title?(user, no_title_badge.name)).to eq(false)
+      end
+
+      it 'returns true if title is from a group the user belongs to' do
+        group.add(user)
+        expect(Guardian.new(user).can_grant_title?(user, group.title)).to eq(true)
+      end
+
+      it "returns false if title is from a group the user doesn't belong to" do
+        expect(Guardian.new(user).can_grant_title?(user, group.title)).to eq(false)
+      end
+    end
   end
 
   describe 'can_change_trust_level?' do