add story-points column to the issue display

init.rb

@@ -2,11 +2,15 @@ require 'redmine'
 
 require 'dispatcher'
  
+require 'query_patch'
+
 Dispatcher.to_prepare do
     require_dependency 'version'
     require_dependency 'issue'
     Issue::SAFE_ATTRIBUTES << "story_points" 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
 end
 
 require_dependency 'backlogs_layout_hooks'

lib/query_patch.rb

@@ -0,0 +1,28 @@
+require_dependency 'query'
+
+module QueryPatch
+    def self.included(base) # :nodoc:
+        base.extend(ClassMethods)
+
+        # Same as typing in the class 
+        base.class_eval do
+            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"))
+        end
+
+    end
+    
+    module ClassMethods
+        # Setter for +available_columns+ that isn't provided by the core.
+        def available_columns=(v)
+            self.available_columns = (v)
+        end
+
+        # Method to add a column to the +available_columns+ that isn't provided by the core.
+        def add_available_column(column)
+            self.available_columns << (column)
+        end
+    end
+end
+
+