Add support for handling 204 'No Content' responses. fixes RestKit#450

Code/Network/RKResponse.h

@@ -170,6 +170,11 @@
  */
 - (BOOL)isCreated;
 
+/**
+ * Indicates an HTTP response code of 204
+ */
+- (BOOL)isNoContent;
+
 /**
  * Indicates an HTTP response code of 304
  */

Code/Network/RKResponse.m

@@ -336,6 +336,10 @@ - (BOOL)isCreated {
 	return ([self statusCode] == 201);
 }
 
+- (BOOL)isNoContent {
+	return ([self statusCode] == 204);
+}
+
 - (BOOL)isNotModified {
 	return ([self statusCode] == 304);
 }

Code/ObjectMapping/RKObjectLoader.m

@@ -254,6 +254,10 @@ - (BOOL)isResponseMappable {
 		[self finalizeLoad:NO error:self.response.failureError];
 
 		return NO;
+    } else if ([self.response isNoContent]) {
+        // The No Content (204) response will never have a message body or a MIME Type. Invoke the delegate with self
+        [self informDelegateOfObjectLoadWithResultDictionary:[NSDictionary dictionaryWithObject:self forKey:@""]];
+        return NO;
 	} else if (NO == [self canParseMIMEType:[self.response MIMEType]]) {
         // We can't parse the response, it's unmappable regardless of the status code
         RKLogWarning(@"Encountered unexpected response with status code: %d (MIME Type: %@)", self.response.statusCode, self.response.MIMEType);

Rakefile

@@ -1,36 +1,7 @@
 require 'rubygems'
 
-begin
-  gem 'uispecrunner'
-  require 'uispecrunner'
-  require 'uispecrunner/options'
-rescue LoadError => error
-  puts "Unable to load UISpecRunner: #{error}"
-end
-
-namespace :uispec do
-  desc "Run all specs"
-  task :all do
-    options = UISpecRunner::Options.from_file('uispec.opts') rescue {}
-    uispec_runner = UISpecRunner.new(options)
-    uispec_runner.run_all!
-  end
-
-  desc "Run all unit specs (those that implement UISpecUnit)"
-  task :units do
-    options = UISpecRunner::Options.from_file('uispec.opts') rescue {}
-    uispec_runner = UISpecRunner.new(options)
-    uispec_runner.run_protocol!('UISpecUnit')
-  end
-
-  desc "Run all integration specs (those that implement UISpecIntegration)"
-  task :integration do
-    options = UISpecRunner::Options.from_file('uispec.opts') rescue {}
-    uispec_runner = UISpecRunner.new(options)
-    uispec_runner.run_protocol!('UISpecIntegration')
-  end
-
-  desc "Run the Spec server via Shotgun"
+namespace :spec do
+  desc "Run the RestKit spec server"
   task :server do
     server_path = File.dirname(__FILE__) + '/Specs/Server/server.rb'
     system("ruby #{server_path}")
@@ -57,8 +28,7 @@ def run(command, min_exit_status = 0)
   return $?.exitstatus
 end
 
-desc "Run all specs"
-task :default => 'uispec:all'
+task :default => 'spec:server'
 
 desc "Build RestKit for iOS and Mac OS X"
 task :build do

Specs/Server/server.rb

@@ -79,6 +79,7 @@ class RestKit::SpecServer < Sinatra::Base
   end
 
   post '/204' do
+    status 204
     content_type 'application/json'
     ""
   end