order direction for content types

app/helpers/admin/custom_fields_helper.rb

@@ -1,7 +1,7 @@
 module Admin::CustomFieldsHelper
 
   def options_for_field_kind
-    options = %w{string text category boolean date file}.map do |kind|
+    %w(string text category boolean date file).map do |kind|
       [t("custom_fields.kind.#{kind}"), kind]
     end
   end
@@ -13,6 +13,12 @@ module Admin::CustomFieldsHelper
     options + options_for_highlighted_field(content_type, collection_name)
   end
 
+  def options_for_order_direction
+    %w(asc desc).map do |direction|
+      [t("admin.content_types.form.order_direction.#{direction}"), direction]
+    end
+  end
+
   def options_for_highlighted_field(content_type, collection_name)
     custom_fields_collection_name = "ordered_#{collection_name.singularize}_custom_fields".to_sym
     collection = content_type.send(custom_fields_collection_name)
@@ -28,7 +34,7 @@ module Admin::CustomFieldsHelper
   end
 
   def options_for_text_formatting
-    options = %w{none html}.map do |option|
+    options = %w(none html).map do |option|
       [t("admin.custom_fields.text_formatting.#{option}"), option]
     end
   end

app/models/content_type.rb

@@ -7,6 +7,7 @@ class ContentType
   field :description
   field :slug
   field :order_by
+  field :order_direction, :default => 'asc'
   field :highlighted_field_name
   field :group_by_field_name
   field :api_enabled, :type => Boolean, :default => false
@@ -46,6 +47,14 @@ class ContentType
     self.group_by_field && group_by_field.category?
   end
 
+  def order_manually?
+    self.order_by == '_position_in_list'
+  end
+
+  def asc_order?
+    self.order_direction.blank? || self.order_direction == 'asc'
+  end
+
   def list_or_group_contents
     if self.groupable?
       groups = self.contents.klass.send(:"group_by_#{self.group_by_field._alias}", :ordered_contents)
@@ -65,7 +74,7 @@ class ContentType
   def ordered_contents(conditions = {})
     column = self.order_by.to_sym
 
-    (if conditions.nil? || conditions.empty?
+    list = (if conditions.nil? || conditions.empty?
       self.contents
     else
       conditions_with_names = {}
@@ -79,6 +88,10 @@ class ContentType
 
       self.contents.where(conditions_with_names)
     end).sort { |a, b| (a.send(column) || 0) <=> (b.send(column) || 0) }
+
+    return list if self.order_manually?
+
+    self.asc_order? ? list : list.reverse
   end
 
   def sort_contents!(order)

app/views/admin/content_types/_form.html.haml

@@ -16,6 +16,7 @@
 
   = f.foldable_inputs :name => :options, :class => 'switchable' do
     = f.input :order_by, :as => :select, :collection => options_for_order_by(f.object, 'contents'), :include_blank => false
+    = f.input :order_direction, :as => :select, :collection => options_for_order_direction, :include_blank => false, :wrapper_html => { :style => "#{'display: none' if f.object.order_manually?}" }
     = f.custom_input :api_enabled, :css => 'toggle' do
       = f.check_box :api_enabled
     = hidden_field_tag 'content_type[api_accounts][]', ''

config/locales/admin_ui.en.yml

@@ -227,6 +227,9 @@ en:
           created_at: 'By "created at" date'
           updated_at: 'By "updated at" date'
           position_in_list: Manually
+        order_direction:
+          asc: Ascending
+          desc: Descending
 
     contents:
       index:

config/locales/admin_ui.fr.yml

@@ -226,6 +226,9 @@ fr:
           created_at: 'Par date création'
           updated_at: 'Par date de mise à jour'
           position_in_list: Manuellement
+        order_direction:
+          asc: Ascendant
+          desc: Descendant
 
     contents:
       index:

public/javascripts/admin/content_types.js

@@ -14,6 +14,13 @@ $(document).ready(function() {
 
   $('#content_type_slug').keypress(function() { $(this).addClass('filled'); });
 
+  $('#content_type_order_by').change(function() {
+    if ($(this).val() != '_position_in_list')
+      $('#content_type_order_direction_input').show();
+    else
+      $('#content_type_order_direction_input').hide();
+  });
+
   // api enabled ?
 
   // console.log('subscribing...');