FEATURE: Admin selector to choose a primary group for a user, display it

and apply a CSS class to their posts.

app/assets/javascripts/admin/controllers/admin_user_controller.js

@@ -24,6 +24,8 @@ Discourse.AdminUserIndexController = Discourse.ObjectController.extend({
     return Discourse.SiteSettings.must_approve_users;
   }.property(),
 
+  primaryGroupDirty: Discourse.computed.propertyNotEqual('originalPrimaryGroupId', 'primary_group_id'),
+
   actions: {
     toggleTitleEdit: function() {
       this.toggleProperty('editingTitle');
@@ -44,6 +46,22 @@ Discourse.AdminUserIndexController = Discourse.ObjectController.extend({
       this.get('model').generateApiKey();
     },
 
+    savePrimaryGroup: function() {
+      var self = this;
+      Discourse.ajax("/admin/users/" + this.get('id') + "/primary_group", {
+        type: 'PUT',
+        data: {primary_group_id: this.get('primary_group_id')}
+      }).then(function () {
+        self.set('originalPrimaryGroupId', self.get('primary_group_id'));
+      }).catch(function() {
+        bootbox.alert(I18n.t('generic_error'));
+      });
+    },
+
+    resetPrimaryGroup: function() {
+      this.set('primary_group_id', this.get('originalPrimaryGroupId'));
+    },
+
     regenerateApiKey: function() {
       var self = this;
       bootbox.confirm(I18n.t("admin.api.confirm_regen"), I18n.t("no_value"), I18n.t("yes_value"), function(result) {

app/assets/javascripts/admin/routes/admin_user_route.js

@@ -23,10 +23,16 @@ Discourse.AdminUserRoute = Discourse.Route.extend({
   afterModel: function(adminUser) {
     var controller = this.controllerFor('adminUser');
 
-    adminUser.loadDetails().then(function () {
+    return adminUser.loadDetails().then(function () {
       adminUser.setOriginalTrustLevel();
       controller.set('model', adminUser);
-      window.scrollTo(0, 0);
+    });
+  },
+
+  setupController: function(controller, model) {
+    controller.setProperties({
+      originalPrimaryGroupId: model.get('primary_group_id'),
+      model: model
     });
   },
 

app/assets/javascripts/admin/templates/user_index.js.handlebars

@@ -46,6 +46,25 @@
     </div>
   </div>
 
+  <div class='display-row'>
+    <div class='field'>{{i18n admin.groups.primary}}</div>
+    <div class='value'>
+      {{#if custom_groups}}
+        {{combobox content=custom_groups value=primary_group_id nameProperty="name" none="admin.groups.no_primary"}}
+      {{else}}
+        &mdash;
+      {{/if}}
+    </div>
+    <div class='controls'>
+      {{#if primaryGroupDirty}}
+        <div>
+        <button class='btn ok' {{action savePrimaryGroup}}><i class='fa fa-check'></i></button>
+        <button class='btn cancel' {{action resetPrimaryGroup}}><i class='fa fa-times'></i></button>
+        </div>
+      {{/if}}
+    </div>
+  </div>
+
   <div class='display-row'>
     <div class='field'>{{i18n user.ip_address.title}}</div>
     <div class='value'>{{ip_address}}</div>
@@ -317,7 +336,7 @@
 
 <section>
   <hr/>
-  <button {{bind-attr class=":btn :btn-danger :pull-right deleteForbidden:hidden"}} {{action destroy target="content"}} {{bind-attr disabled="deleteForbidden"}} {{bind-attr}}>
+  <button {{bind-attr class=":btn :btn-danger :pull-right deleteForbidden:hidden"}} {{action destroy target="content"}} {{bind-attr disabled="deleteForbidden"}}>
     <i class="fa fa-exclamation-triangle"></i>
     {{i18n admin.user.delete}}
   </button>

app/assets/javascripts/admin/views/admin_user_view.js

@@ -0,0 +1,10 @@
+/**
+  The view class for an Admin User
+
+  @class AdminUserView
+  @extends Discourse.View
+  @namespace Discourse
+  @module Discourse
+**/
+Discourse.AdminUserView = Discourse.View.extend(Discourse.ScrollTop);
+

app/assets/javascripts/discourse/components/post_gap_component.js

@@ -25,7 +25,10 @@ Discourse.PostGapComponent = Ember.Component.extend({
     if (this.get('loading')) {
       buffer.push(I18n.t('loading'));
     } else {
-      buffer.push(I18n.t('post.gap', {count: this.get('gap.length')}));
+      var gapLength = this.get('gap.length');
+      if (gapLength) {
+        buffer.push(I18n.t('post.gap', {count: gapLength}));
+      }
     }
   },
 

app/assets/javascripts/discourse/templates/post.js.handlebars

@@ -29,6 +29,7 @@
           {{/if}}
 
           {{#if user_title}}<div class="user-title" {{action showPosterExpansion this}}>{{user_title}}</div>{{/if}}
+          {{#if primary_group_name}}<div><a href='/groups/{{unbound primary_group_name}}' class='user-group'>{{unbound primary_group_name}}</a></div>{{/if}}
         </div>
       {{else}}
         <div class="contents">

app/assets/javascripts/discourse/views/post_view.js

@@ -12,13 +12,21 @@ Discourse.PostView = Discourse.GroupedView.extend(Ember.Evented, {
   classNameBindings: ['postTypeClass',
                       'selected',
                       'post.hidden:post-hidden',
-                      'post.deleted'],
+                      'post.deleted',
+                      'groupNameClass'],
   postBinding: 'content',
 
   postTypeClass: function() {
     return this.get('post.post_type') === Discourse.Site.currentProp('post_types.moderator_action') ? 'moderator' : 'regular';
   }.property('post.post_type'),
 
+  groupNameClass: function() {
+    var primaryGroupName = this.get('post.primary_group_name');
+    if (primaryGroupName) {
+      return "group-" + primaryGroupName;
+    }
+  }.property('post.primary_group_name'),
+
   // If the cooked content changed, add the quote controls
   cookedChanged: function() {
     var postView = this;

app/assets/stylesheets/desktop/topic-post.scss

@@ -461,17 +461,26 @@ iframe {
     width: 45px;
     height: 45px;
   }
-  
-  .contents { 
+
+  .contents {
 
     text-align: center;
 
-     a {
-      display: block; 
+    a {
+      display: block;
       margin: 0 auto;
       width: 45px;
     }
 
+    a.user-group {
+      margin: 4px 0 0 0;
+      padding: 0px;
+      color: $primary_light;
+      font-size: 80%;
+      width: 100%;
+      line-height: 13px;
+    }
+
     h3 a {
       display: inline;
       width: auto;
@@ -614,6 +623,7 @@ position: relative;
   }
 }
 
+
 .user-title {
   margin-top: 8px;
   color: $primary_light;

app/assets/stylesheets/mobile/topic-post.scss

@@ -442,6 +442,7 @@ iframe {
   float: left;
 }
 
+
 .user-title {
   color: #aaa;
   padding-top: 2px;

app/controllers/admin/users_controller.rb

@@ -17,6 +17,7 @@ class Admin::UsersController < Admin::AdminController
                                     :block,
                                     :unblock,
                                     :trust_level,
+                                    :primary_group,
                                     :generate_api_key,
                                     :revoke_api_key]
 
@@ -94,6 +95,13 @@ class Admin::UsersController < Admin::AdminController
     render_serialized(@user, AdminUserSerializer)
   end
 
+  def primary_group
+    guardian.ensure_can_change_primary_group!(@user)
+    @user.primary_group_id = params[:primary_group_id]
+    @user.save!
+    render nothing: true
+  end
+
   def trust_level
     guardian.ensure_can_change_trust_level!(@user)
     logger = StaffActionLogger.new(current_user)

app/models/group.rb

@@ -220,6 +220,7 @@ class Group < ActiveRecord::Base
     if @deletions
       @deletions.each do |gu|
         gu.destroy
+        User.update_all 'primary_group_id = NULL', ['id = ? AND primary_group_id = ?', gu.user_id, gu.group_id]
       end
     end
     @deletions = nil

app/serializers/admin_detailed_user_serializer.rb

@@ -14,12 +14,14 @@ class AdminDetailedUserSerializer < AdminUserSerializer
              :private_topics_count,
              :can_delete_all_posts,
              :can_be_deleted,
-             :suspend_reason
+             :suspend_reason,
+             :primary_group_id
 
   has_one :approved_by, serializer: BasicUserSerializer, embed: :objects
   has_one :api_key, serializer: ApiKeySerializer, embed: :objects
   has_one :suspended_by, serializer: BasicUserSerializer, embed: :objects
   has_one :leader_requirements, serializer: LeaderRequirementsSerializer, embed: :objects
+  has_many :custom_groups, embed: :object, serializer: BasicGroupSerializer
 
   def can_revoke_admin
     scope.can_revoke_admin?(object)

app/serializers/post_serializer.rb

@@ -23,6 +23,7 @@ class PostSerializer < BasicPostSerializer
              :topic_slug,
              :topic_id,
              :display_username,
+             :primary_group_name,
              :version,
              :can_edit,
              :can_delete,
@@ -75,6 +76,11 @@ class PostSerializer < BasicPostSerializer
     object.user.try(:name)
   end
 
+  def primary_group_name
+    return nil unless object.user
+    return @topic_view.primary_group_names[object.user.primary_group_id] if object.user.primary_group_id
+  end
+
   def link_counts
     return @single_post_link_counts if @single_post_link_counts.present?
 

config/locales/client.en.yml

@@ -1267,6 +1267,8 @@ en:
             other: "spam x{{count}}"
 
       groups:
+        primary: "Primary Group"
+        no_primary: "(no primary group)"
         title: "Groups"
         edit: "Edit Groups"
         selector_placeholder: "add users"

config/routes.rb

@@ -58,6 +58,7 @@ Discourse::Application.routes.draw do
       put "block"
       put "unblock"
       put "trust_level"
+      put "primary_group"
       get "leader_requirements"
     end
 

db/migrate/20140210194146_add_primary_group_id_to_users.rb

@@ -0,0 +1,5 @@
+class AddPrimaryGroupIdToUsers < ActiveRecord::Migration
+  def change
+    add_column :users, :primary_group_id, :integer, null: true
+  end
+end

lib/guardian.rb

@@ -133,6 +133,10 @@ class Guardian
     user && is_staff?
   end
 
+  def can_change_primary_group?(user)
+    user && is_staff?
+  end
+
   def can_change_trust_level?(user)
     user && is_staff?
   end

lib/topic_view.rb

@@ -111,6 +111,22 @@ class TopicView
     filter_posts_paged(opts[:page].to_i)
   end
 
+  def primary_group_names
+    return @group_names if @group_names
+
+    primary_group_ids = Set.new
+    @posts.each do |p|
+      primary_group_ids << p.user.primary_group_id if p.user.try(:primary_group_id)
+    end
+
+    result = {}
+    unless primary_group_ids.empty?
+      Group.where(id: primary_group_ids.to_a).pluck(:id, :name).each do |g|
+        result[g[0]] = g[1]
+      end
+    end
+    result
+  end
 
   # Find the sort order for a post in the topic
   def sort_order_for_post_number(post_number)

spec/controllers/admin/users_controller_spec.rb

@@ -140,6 +140,29 @@ describe Admin::UsersController do
       end
     end
 
+    context '.primary_group' do
+      before do
+        @another_user = Fabricate(:coding_horror)
+      end
+
+      it "raises an error when the user doesn't have permission" do
+        Guardian.any_instance.expects(:can_change_primary_group?).with(@another_user).returns(false)
+        xhr :put, :primary_group, user_id: @another_user.id
+        response.should be_forbidden
+      end
+
+      it "returns a 404 if the user doesn't exist" do
+        xhr :put, :primary_group, user_id: 123123
+        response.should be_forbidden
+      end
+
+      it "chagnes the user's trust level" do
+        xhr :put, :primary_group, user_id: @another_user.id, primary_group_id: 2
+        @another_user.reload
+        @another_user.primary_group_id.should == 2
+      end
+    end
+
     context '.trust_level' do
       before do
         @another_user = Fabricate(:coding_horror)

spec/models/user_spec.rb

@@ -1050,4 +1050,35 @@ describe User do
     end
   end
 
+  describe "primary_group_id" do
+    let!(:user) { Fabricate(:user) }
+
+    it "has no primary_group_id by default" do
+      user.primary_group_id.should be_nil
+    end
+
+    context "when the user has a group" do
+      let!(:group) { Fabricate(:group) }
+
+      before do
+        group.usernames = user.username
+        group.save
+        user.primary_group_id = group.id
+        user.save
+        user.reload
+      end
+
+      it "should allow us to use it as a primary group" do
+        user.primary_group_id.should == group.id
+
+        # If we remove the user from the group
+        group.usernames = ""
+        group.save
+
+        # It should unset it from the primary_group_id
+        user.reload
+        user.primary_group_id.should be_nil
+      end
+    end
+  end
 end