Support category names with spaces

app/assets/javascripts/discourse/routes/list_category_route.js.coffee

@@ -1,10 +1,13 @@
 window.Discourse.ListCategoryRoute = Discourse.FilteredListRoute.extend
-  serialize: (params) -> slug: params.get('slug')
-
   setupController: (controller, model) ->
+
+    slug = Em.get(model, 'slug')
+    category = Discourse.get('site.categories').findProperty('slug', slug)
+    category ||= Discourse.Category.create(name: slug, slug: slug)
+
     listController = @controllerFor('list')
-    listController.set('filterMode', "category/#{model.slug}")
-    listController.load("category/#{model.slug}").then (topicList) =>
+    listController.set('filterMode', "category/#{category.get('slug')}")
+    listController.load("category/#{category.get('slug')}").then (topicList) =>
       listController.set('canCreateTopic', topicList.get('can_create_topic'))
-      listController.set('category', Discourse.Category.create(name: model.slug))
+      listController.set('category',category)
       @controllerFor('listTopics').set('content', topicList)

app/controllers/list_controller.rb

@@ -35,7 +35,7 @@ class ListController < ApplicationController
     list = nil
 
     # If they choose uncategorized, return topics NOT in a category
-    if params[:category] == SiteSetting.uncategorized_name
+    if params[:category] == Slug.for(SiteSetting.uncategorized_name) or params[:category] == SiteSetting.uncategorized_name
       list = query.list_uncategorized
     else
       category = Category.where(slug: params[:category]).includes(:featured_users).first

app/models/category_list.rb

@@ -30,7 +30,7 @@ class CategoryList
 
 
       uncategorized = Category.new({name: SiteSetting.uncategorized_name,
-                                   slug: SiteSetting.uncategorized_name,
+                                   slug: Slug.for(SiteSetting.uncategorized_name),
                                    featured_topics: uncategorized_topics}.merge(totals))
 
       # Find the appropriate place to insert it: