render_text may optionally append to the response body. render_javascript appends by default. This allows you to chain multiple render :update calls by setting @performed_render = false between them (awaiting a better public API).

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@5253 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* render_text may optionally append to the response body. render_javascript appends by default. This allows you to chain multiple render :update calls by setting @performed_render = false between them (awaiting a better public API).  [Jeremy Kemper]
+
 * Rename test assertion to prevent shadowing. Closes #6306. [psross]
 
 * Fixed that NumberHelper#number_to_delimiter should respect precision of higher than two digits #6231 [phallstrom]

actionpack/lib/action_controller/base.rb

@@ -793,15 +793,22 @@ module ActionController #:nodoc:
         render_text(@template.render_template(type, template, nil, local_assigns), status)
       end
 
-      def render_text(text = nil, status = nil) #:nodoc:
+      def render_text(text = nil, status = nil, append_response = false) #:nodoc:
         @performed_render = true
+
         response.headers['Status'] = interpret_status(status || DEFAULT_RENDER_STATUS_CODE)
-        response.body = text
+
+        if append_response
+          response.body ||= ''
+          response.body << text
+        else
+          response.body = text
+        end
       end
 
-      def render_javascript(javascript, status = nil) #:nodoc:
+      def render_javascript(javascript, status = nil, append_response = true) #:nodoc:
         response.content_type = Mime::JS
-        render_text(javascript, status)
+        render_text(javascript, status, append_response)
       end
 
       def render_xml(xml, status = nil) #:nodoc:

actionpack/test/controller/render_test.rb

@@ -43,6 +43,15 @@ class TestController < ActionController::Base
     render_text "hello world", "404 Moved"
   end
 
+  def render_text_appendix
+    render_text "hello world"
+    render_text ", goodbye!", "404 Not Found", true
+  end
+
+  def render_nothing_with_appendix
+    render_text "appended", nil, true
+  end
+
   def render_xml_hello
     @name = "David"
     render "test/hello"
@@ -160,6 +169,18 @@ class RenderTest < Test::Unit::TestCase
     assert_response 404
   end
 
+  def test_do_with_render_text_appendix
+    get :render_text_appendix
+    assert_response 404
+    assert_equal 'hello world, goodbye!', @response.body
+  end
+
+  def test_do_with_render_nothing_with_appendix
+    get :render_nothing_with_appendix
+    assert_response 200
+    assert_equal 'appended', @response.body
+  end
+
   def test_attempt_to_access_object_method
     assert_raises(ActionController::UnknownAction, "No action responded to [clone]") { get :clone }
   end