Sortable columns. Closes #30

app/controllers/concerns/action_rendering.rb

@@ -4,6 +4,7 @@ module ActionRendering
   def index
     authorize model_class
     scoped = policy_scope model_class
+    params[:sort] ||= serializer_class.default_sort if serializer_class.default_sort
     render json: serializer_class.page(params, scoped)
   end
 

app/controllers/conversations_controller.rb

@@ -5,6 +5,7 @@ def index
     authorize model_class
     scoped = policy_scope model_class
     scoped = scoped.unread if params.delete(:unread)
+    params[:sort] ||= serializer_class.default_sort if serializer_class.default_sort
     render json: serializer_class.page(params, scoped)
   end
 

app/serializers/board_serializer.rb

@@ -2,4 +2,6 @@ class BoardSerializer
   include TalkSerializer
   all_attributes except: :permissions
   can_include :discussions, :parent, :sub_boards
+  can_sort_by :created_at
+  self.default_sort = 'created_at'
 end

app/serializers/comment_serializer.rb

@@ -1,6 +1,8 @@
 class CommentSerializer
   include TalkSerializer
   all_attributes
+  can_sort_by :created_at
+  self.default_sort = 'created_at'
 
   def custom_attributes
     {

app/serializers/concerns/talk_serializer.rb

@@ -6,6 +6,10 @@ module TalkSerializer
     attr_reader :model
     attributes :href, :links
 
+    class << self
+      attr_accessor :default_sort
+    end
+
     is_sectioned = model_class.columns_hash.has_key?('section') rescue false
     can_filter_by(:section) if is_sectioned
   end

app/serializers/conversation_serializer.rb

@@ -2,4 +2,6 @@ class ConversationSerializer
   include TalkSerializer
   all_attributes
   can_include :messages
+  can_sort_by :updated_at
+  self.default_sort = 'updated_at'
 end

app/serializers/discussion_serializer.rb

@@ -2,4 +2,7 @@ class DiscussionSerializer
   include TalkSerializer
   all_attributes
   can_include :comments, :board, :user
+  can_filter_by :sticky
+  can_sort_by :updated_at, :sticky_position
+  self.default_sort = '-updated_at,sticky_position'
 end