Use lower case group names in URLs

app/assets/javascripts/discourse/routes/group_route.js

@@ -12,6 +12,10 @@ Discourse.GroupRoute = Discourse.Route.extend({
     return Discourse.Group.find(params.name);
   },
 
+  serialize: function(model) {
+    return { name: model.get('name').toLowerCase() };
+  },
+
   afterModel: function(model) {
     var self = this;
     return Discourse.Group.findGroupCounts(model.get('name')).then(function (counts) {

app/controllers/groups_controller.rb

@@ -1,29 +1,33 @@
 class GroupsController < ApplicationController
 
   def show
-    group = Group.where(name: params.require(:id)).first
+    render_serialized(find_group(:id), BasicGroupSerializer)
-    guardian.ensure_can_see!(group)
-    render_serialized(group, BasicGroupSerializer)
   end
 
   def counts
-    group = Group.where(name: params.require(:group_id)).first
+    group = find_group(:group_id)
-    guardian.ensure_can_see!(group)
     render json: {counts: { posts: group.posts_for(guardian).count,
                             members: group.users.count } }
   end
 
   def posts
-    group = Group.where(name: params.require(:group_id)).first
+    group = find_group(:group_id)
-    guardian.ensure_can_see!(group)
     posts = group.posts_for(guardian, params[:before_post_id]).limit(20)
     render_serialized posts.to_a, GroupPostSerializer
   end
 
   def members
-    group = Group.where(name: params.require(:group_id)).first
+    group = find_group(:group_id)
-    guardian.ensure_can_see!(group)
     render_serialized(group.users.order('username_lower asc').limit(200).to_a, GroupUserSerializer)
   end
 
+  private
+
+  def find_group(param_name)
+    name = params.require(param_name)
+    group = Group.where("lower(name) = ?", name.downcase).first
+    guardian.ensure_can_see!(group)
+    group
+  end
+
 end

spec/controllers/groups_controller_spec.rb

@@ -16,6 +16,13 @@ describe GroupsController do
       response.should be_success
       ::JSON.parse(response.body)['basic_group']['id'].should == group.id
     end
+
+    it "works even with an upper case group name" do
+      Guardian.any_instance.expects(:can_see?).with(group).returns(true)
+      xhr :get, :show, id: group.name.upcase
+      response.should be_success
+      ::JSON.parse(response.body)['basic_group']['id'].should == group.id
+    end
   end
 
   describe "counts" do