Add "position" column to issue filter

app/controllers/backlogs_controller.rb

@@ -126,16 +126,17 @@ class BacklogsController < ApplicationController
   def select_issues
     @query = Query.new(:name => "_")
     @query.project = @project
-    @query.sort_criteria = [['parent_id', 'desc']]
 
     if params[:sprint_id]
         @query.add_filter("status_id", '*', ['']) # All statuses
         @query.add_filter("fixed_version_id", '=', [params[:sprint_id]])
         @query.add_filter("backlogs_issue_type", '=', ['any'])
+        @query.sort_criteria = [['parent_id', 'desc']]
     else
         @query.add_filter("status_id", 'o', ['']) # only open
         @query.add_filter("fixed_version_id", '!*', ['']) # only unassigned
         @query.add_filter("backlogs_issue_type", '=', ['story'])
+        @query.sort_criteria = [['position', 'asc']]
     end
 
     session[:query] = {:project_id => @query.project_id, :filters => @query.filters}

init.rb

@@ -15,6 +15,7 @@ Dispatcher.to_prepare do
 
     Issue::SAFE_ATTRIBUTES << "story_points" if Issue.const_defined? "SAFE_ATTRIBUTES"
     Issue::SAFE_ATTRIBUTES << "remaining_hours" if Issue.const_defined? "SAFE_ATTRIBUTES"
+    Issue::SAFE_ATTRIBUTES << "position" if Issue.const_defined? "SAFE_ATTRIBUTES"
 
     Query.send(:include, QueryPatch) unless Query.included_modules.include? QueryPatch
     Issue.send(:include, IssuePatch) unless Issue.included_modules.include? IssuePatch

lib/query_patch.rb

@@ -10,6 +10,7 @@ module QueryPatch
             unloadable # Send unloadable so it will not be unloaded in development
             base.add_available_column(QueryColumn.new(:story_points, :sortable => "#{Issue.table_name}.story_points"))
             base.add_available_column(QueryColumn.new(:remaining_hours, :sortable => "#{Issue.table_name}.remaining_hours"))
+            base.add_available_column(QueryColumn.new(:position, :sortable => "#{Issue.table_name}.position"))
             base.add_available_column(QueryColumn.new(:velocity_based_estimate))
 
             alias_method_chain :available_filters, :backlogs_issue_type
@@ -45,6 +46,7 @@ module QueryPatch
 
             [   [:parent,           :before,    (self.filters["backlogs_issue_type"][:values] == ['any'])],
                 [:story_points,     :after,     true],
+                [:position,         :after,     true],
                 [:estimated_hours,  :after,     true]]. each {|col, pos, use|
 
                 next if !use