From 2a92002b6e4a6a54af85f8144e25944043eefb0f Mon Sep 17 00:00:00 2001
From: jpl
Date: Fri, 2 Dec 2016 12:14:51 +0100
Subject: Refs #2015: adding sortable columns for ref_* & * (+ fix for nil
 values)

---
 app/controllers/stop_areas_controller.rb | 33 ++++++++++++++++++++++++++------
 1 file changed, 27 insertions(+), 6 deletions(-)

(limited to 'app/controllers/stop_areas_controller.rb')

diff --git a/app/controllers/stop_areas_controller.rb b/app/controllers/stop_areas_controller.rb
index 1fe904a40..fca33bdfb 100644
--- a/app/controllers/stop_areas_controller.rb
+++ b/app/controllers/stop_areas_controller.rb
@@ -139,16 +139,37 @@ class StopAreasController < BreadcrumbController
 
   def collection
     @q = parent.present? ? parent.stop_areas.search(params[:q]) : referential.stop_areas.search(params[:q])
-    @stop_areas ||=
-      begin
-        stop_areas = @q.result.order(:name)
-        stop_areas = stop_areas.paginate(:page => params[:page], :per_page => @per_page) if @per_page.present?
-        stop_areas
-      end
+
+    if sort_column && sort_direction
+      @stop_areas ||=
+        begin
+          stop_areas = @q.result.order(sort_column + ' ' + sort_direction)
+          stop_areas = stop_areas.paginate(:page => params[:page], :per_page => @per_page) if @per_page.present?
+          stop_areas
+        end
+    else
+      @stop_areas ||=
+        begin
+          stop_areas = @q.result.order(:name)
+          stop_areas = stop_areas.paginate(:page => params[:page], :per_page => @per_page) if @per_page.present?
+          stop_areas
+        end
+    end
   end
 
   private
 
+  def sort_column
+    if parent.present?
+      parent.stop_areas.column_names.include?(params[:sort]) ? params[:sort] : 'name'
+    else
+      referential.stop_areas.column_names.include?(params[:sort]) ? params[:sort] : 'name'
+    end
+  end
+  def sort_direction
+    %w[asc desc].include?(params[:direction]) ?  params[:direction] : 'asc'
+  end
+
   alias_method :current_referential, :stop_area_referential
   helper_method :current_referential
 
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