Add suppress_messages to migrations, to temporarily turn off verbose messages

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@3827 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/lib/active_record/migration.rb

@@ -256,6 +256,14 @@ def say_with_time(message)
         result
       end
 
+      def suppress_messages
+        save = verbose
+        self.verbose = false
+        yield
+      ensure
+        self.verbose = save
+      end
+
       def method_missing(method, *arguments, &block)
         say_with_time "#{method}(#{arguments.map { |a| a.inspect }.join(", ")})" do
           arguments[0] = Migrator.proper_table_name(arguments.first) unless arguments.empty?