Make userstamp columns configurable

  # Globally in environment.rb
  ActiveRecord::Base.created_userstamp_column = :creator_id

  # In a model definition
  class Subscription
    self.created_userstamp_column = :creator_id
    self.updated_userstamp_column = :updater_id
  end

CHANGELOG.rdoc

@@ -1,3 +1,7 @@
+== 1.1.0, released 2008-12-17
+
+* Make userstamp columns configurable
+
 == 1.0.0, released 2008-10-28
 
 * Initial release

README.rdoc

@@ -1,6 +1,6 @@
 == Blame
 
-Automatically userstamps create and update operations if the table has fields named *created_by* and/or *updated_by*.
+Automatically userstamps create and update operations if the table has columns named *created_by* and/or *updated_by*.
 The Blame plugin attempts to mirror the simplicity of ActiveRecord's timestamp module.
 
 Blame adds a *userstamps* migration helper which will create both created_by and updated_by columns in your table:
@@ -18,6 +18,17 @@ can override this behavior by writing your own *userstamp_object* method in Acti
     User.find(session[:user_id])
   end
 
+You can change the names of the userstamp columns:
+
+  # Globally in environment.rb
+  ActiveRecord::Base.created_userstamp_column = :creator_id
+
+  # In a model definition
+  class Subscription
+    self.created_userstamp_column = :creator_id
+    self.updated_userstamp_column = :updater_id
+  end
+
 Automatic userstamping can be turned off globally by setting:
 
   ActiveRecord::Base.record_userstamps = false

about.yml

@@ -3,4 +3,4 @@ summary: adds userstamps to ActiveRecord models
 homepage: http://www.infused.org
 plugin: git://github.com/infused/blame.git
 license: MIT
-version: 1.0.0
+version: 1.1.0

lib/blame.rb

@@ -6,6 +6,12 @@ def self.included(base)
 
       base.class_inheritable_accessor :record_userstamps, :instance_writer => false
       base.record_userstamps = true
+
+      base.class_inheritable_accessor :created_userstamp_column, :instance_writer => false
+      base.created_userstamp_column = :created_by
+
+      base.class_inheritable_accessor :updated_userstamp_column, :instance_writer => false
+      base.updated_userstamp_column = :updated_by
     end
 
     private
@@ -16,15 +22,15 @@ def userstamp_object
 
     def create_with_userstamps
       if record_userstamps && userstamp_object
-        write_attribute('created_by', userstamp_object.id) if respond_to?(:created_by)
-        write_attribute('updated_by', userstamp_object.id) if respond_to?(:updated_by)
+        write_attribute(created_userstamp_column, userstamp_object.id) if respond_to?(created_userstamp_column)
+        write_attribute(updated_userstamp_column, userstamp_object.id) if respond_to?(updated_userstamp_column)
       end
       create_without_userstamps
     end
 
     def update_with_userstamps(*args)
       if record_userstamps && userstamp_object && (!partial_updates? || changed?)
-        write_attribute('updated_by', userstamp_object.id) if respond_to?(:updated_by)
+        write_attribute(updated_userstamp_column, userstamp_object.id) if respond_to?(updated_userstamp_column)
       end
       update_without_userstamps
     end