Added add/remove_timestamps to the schema statements for adding the created_at/updated_at columns on existing tables (closes #11129) [jramirez]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@9014 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 16 insertions, 0 deletions

diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
index 8bbadd67e7..b471b153de 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -298,6 +298,22 @@ module ActiveRecord
         sql << " ORDER BY #{options[:order]}"
       end
 
+      # Adds timestamps (created_at and updated_at) columns to the named table.
+      # ===== Examples
+      #  add_timestamps(:suppliers)
+      def add_timestamps(table_name)
+        add_column table_name, :created_at, :datetime
+        add_column table_name, :updated_at, :datetime    
+      end
+      
+      # Removes the timestamp columns (created_at and updated_at) from the table definition.
+      # ===== Examples
+      #  remove_timestamps(:suppliers)
+      def remove_timestamps(table_name)
+        remove_column table_name, :updated_at   
+        remove_column table_name, :created_at       
+      end
+      
       protected
         def options_include_default?(options)
           options.include?(:default) && !(options[:null] == false && options[:default].nil?)