Functionally complete new example.

Code/CoreData/RKManagedObject.m

@@ -157,7 +157,7 @@
 	return [self valueForKey:[[self class] primaryKeyProperty]];
 }
 
-- (NSDictionary*)paramsForSerialization {
+- (id<RKRequestSerializable>)paramsForSerialization {
 	NSMutableDictionary* params = [NSMutableDictionary dictionary];
 	for (NSString* elementName in [[self class] elementToPropertyMappings]) {
 		NSString* propertyName = [[[self class] elementToPropertyMappings] objectForKey:elementName];

Code/ObjectMapping/RKObject.m

@@ -23,7 +23,7 @@
 	return [[self new] autorelease];
 }
 
-- (NSDictionary*)paramsForSerialization {
+- (id<RKRequestSerializable>)paramsForSerialization {
 	NSMutableDictionary* params = [NSMutableDictionary dictionary];
 	for (NSString* elementName in [[self class] elementToPropertyMappings]) {
 		NSString* propertyName = [[[self class] elementToPropertyMappings] objectForKey:elementName];

Code/ObjectMapping/RKObjectMappable.h

@@ -7,6 +7,8 @@
  *
  */
 
+@protocol RKRequestSerializable;
+
 /**
  * Must be implemented by all classes utilizing the RKModelMapper to map REST
  * responses to domain model classes
@@ -43,7 +45,7 @@
  * will encode these parameters into a serialization format (form encoded, JSON, etc). This is
  * required to use putObject: and postObject: for updating and creating remote object representations.
  */
-- (NSDictionary*)paramsForSerialization;
+- (id<RKRequestSerializable>)paramsForSerialization;
 
 /**
  * Must return a new autoreleased instance of the model class ready for mapping. Used to initialize the model

Examples/RKDiscussionBoardExample/DiscussionBoard/Classes/Controllers/DBLoginViewController.m

@@ -78,6 +78,7 @@
 		_passwordField.returnKeyType = UIReturnKeyGo;
 	}
 	self.dataSource = [TTListDataSource dataSourceWithItems:items];
+	
 	[_usernameField becomeFirstResponder];
 }
 

Examples/RKDiscussionBoardExample/DiscussionBoard/Classes/Controllers/DBPostTableViewController.m

@@ -8,6 +8,7 @@
 
 #import "DBPostTableViewController.h"
 #import <Three20/Three20+Additions.h>
+#import "DBUser.h"
 
 @implementation DBPostTableViewController
 
@@ -51,9 +52,6 @@
 	}
 	
 	_requiresLoggedInUser = YES;
-	if (![self isNewRecord]) {
-		_requiredUserID = _post.userID;
-	}
 	
 	[super loadView];
 	
@@ -61,40 +59,56 @@
 	_bodyTextEditor.font = [UIFont systemFontOfSize:12];
 	_bodyTextEditor.autoresizesToText = NO;
 	_bodyTextEditor.delegate = self;
+	_bodyTextEditor.text = _post.body;
 }
 
 - (void)createModel {
+	BOOL isAuthorizedUser = [[DBUser currentUser].userID isEqualToNumber:_post.userID] || [self isNewRecord];
+	
 	NSMutableArray* items = [NSMutableArray array];
 	
-	_bodyTextEditor.text = _post.body;
-	
-	[items addObject:[TTTableControlItem itemWithCaption:@"" control:(UIControl*)_bodyTextEditor]];
-	
 	// Attachment item.
-	if (_newAttachment) {
-		// has new attachment. show it. allow update.
-		[items addObject:[TTTableImageItem itemWithText:@"Tap to Replace Image" imageURL:@"" defaultImage:_newAttachment URL:@"db://updateAttachment"]];
-	} else if (![[_post attachmentPath] isWhitespaceAndNewlines]) {
-		// Has existing attachment. allow replace
-		NSString* url = [NSString stringWithFormat:@"%@%@", [RKObjectManager sharedManager].client.baseURL, _post.attachmentPath];
-		[items addObject:[TTTableImageItem itemWithText:@"Tap to Replace Image" imageURL:url defaultImage:nil URL:@"db://updateAttachment"]];
+	if (isAuthorizedUser) {
+		[items addObject:[TTTableControlItem itemWithCaption:@"" control:(UIControl*)_bodyTextEditor]];
+		if (_newAttachment) {
+			// has new attachment. show it. allow update.
+			[items addObject:[TTTableImageItem itemWithText:@"Tap to Replace Image" imageURL:@"" defaultImage:_newAttachment URL:@"db://updateAttachment"]];
+		} else if (![[_post attachmentPath] isWhitespaceAndNewlines]) {
+			// Has existing attachment. allow replace
+			NSString* url = [NSString stringWithFormat:@"%@%@", [RKObjectManager sharedManager].client.baseURL, _post.attachmentPath];
+			[items addObject:[TTTableImageItem itemWithText:@"Tap to Replace Image" imageURL:url defaultImage:nil URL:@"db://updateAttachment"]];
+		} else {
+			// has no attachment. allow new one.
+			[items addObject:[TTTableTextItem itemWithText:@"Tap to Add Image" URL:@"db://updateAttachment"]];
+		}
 	} else {
-		// has no attachment. allow new one.
-		[items addObject:[TTTableTextItem itemWithText:@"Tap to Add Image" URL:@"db://updateAttachment"]];
+		[items addObject:[TTTableLongTextItem itemWithText:_post.body]];
+		NSString* url = [NSString stringWithFormat:@"%@%@", [RKObjectManager sharedManager].client.baseURL, _post.attachmentPath];
+		[items addObject:[TTTableImageItem itemWithText:@"" imageURL:url URL:nil]];
 	}
 	
 	if ([self isNewRecord]) {
 		self.title = @"New Post";
 		[items addObject:[TTTableButton itemWithText:@"Create" delegate:self selector:@selector(createButtonWasPressed:)]];
 	} else {
-		self.title = @"Edit Post";
-		[items addObject:[TTTableButton itemWithText:@"Update" delegate:self selector:@selector(updateButtonWasPressed:)]];
-		[items addObject:[TTTableButton itemWithText:@"Delete" delegate:self selector:@selector(destroyButtonWasPressed:)]];
+		if (isAuthorizedUser) {
+			self.title = @"Edit Post";
+			[items addObject:[TTTableButton itemWithText:@"Update" delegate:self selector:@selector(updateButtonWasPressed:)]];
+			[items addObject:[TTTableButton itemWithText:@"Delete" delegate:self selector:@selector(destroyButtonWasPressed:)]];
+		} else {
+			self.title = @"Post";
+		}
 	}
-	self.dataSource = [TTListDataSource dataSourceWithItems:items];
+	NSString* byLine = @"";
+	if (![self isNewRecord]) {
+		NSString* username = (isAuthorizedUser ? @"me" : _post.username);
+		byLine = [NSString stringWithFormat:@"posted by %@", username];
+	}
+	self.dataSource = [TTSectionedDataSource dataSourceWithArrays:byLine, items, nil];
 }
 
 - (void)updateAttachment {
+	[_bodyTextEditor resignFirstResponder];
 	UIImagePickerController* controller = [[[UIImagePickerController alloc] init] autorelease];
 	controller.delegate = self;
 	[self presentModalViewController:controller animated:YES];

Examples/RKDiscussionBoardExample/DiscussionBoard/Classes/Controllers/DBPostsTableViewController.m

@@ -71,7 +71,12 @@
 		
 		for(DBPost* post in model.objects) {
 			NSString* url = [NSString stringWithFormat:@"db://posts/%@", post.postID];
-			[postItems addObject:[TTTableLongTextItem itemWithText:post.body URL:url]];
+			NSString* imageURL = [NSString stringWithFormat:@"%@%@", [RKObjectManager sharedManager].client.baseURL,
+								  post.attachmentPath];
+			TTTableImageItem* item = [TTTableImageItem itemWithText:post.body
+														   imageURL:imageURL
+																URL:url];
+			[postItems addObject:item];
 		}
 		
 		self.dataSource = [TTSectionedDataSource dataSourceWithArrays:@"Topic",

Examples/RKDiscussionBoardExample/DiscussionBoard/Classes/DiscussionBoardAppDelegate.m

@@ -9,6 +9,7 @@
 #import "DiscussionBoardAppDelegate.h"
 #import <RestKit/RestKit.h>
 #import <RestKit/ObjectMapping/RKDynamicRouter.h>
+#import <RestKit/ObjectMapping/RKRailsRouter.h>
 #import <Three20/Three20.h>
 #import <Three20/Three20+Additions.h>
 #import "DBTopicsTableViewController.h"
@@ -52,13 +53,16 @@ static NSString* const kAccessTokenHeaderField = @"HTTP_USER_ACCESS_TOKEN";
 	
 	// Set Up Router
 	RKDynamicRouter* router = [[[RKDynamicRouter alloc] init] autorelease];
+//	RKRailsRouter* router = [[[RKRailsRouter alloc] init] autorelease];
 	[router routeClass:[DBUser class] toResourcePath:@"/signup" forMethod:RKRequestMethodPOST];
 	[router routeClass:[DBUser class] toResourcePath:@"/login" forMethod:RKRequestMethodPUT];
 	
+//	[router setModelName:@"topic" forClass:[DBTopic class]];
 	[router routeClass:[DBTopic class] toResourcePath:@"/topics" forMethod:RKRequestMethodPOST];
 	[router routeClass:[DBTopic class] toResourcePath:@"/topics/(topicID)" forMethod:RKRequestMethodPUT];
 	[router routeClass:[DBTopic class] toResourcePath:@"/topics/(topicID)" forMethod:RKRequestMethodDELETE];
 	
+//	[router setModelName:@"post" forClass:[DBPost class]];
 	[router routeClass:[DBPost class] toResourcePath:@"/topics/(topicID)/posts" forMethod:RKRequestMethodPOST];
 	[router routeClass:[DBPost class] toResourcePath:@"/topics/(topicID)/posts/(postID)" forMethod:RKRequestMethodPUT];
 	[router routeClass:[DBPost class] toResourcePath:@"/topics/(topicID)/posts/(postID)" forMethod:RKRequestMethodDELETE];
@@ -89,9 +93,6 @@ static NSString* const kAccessTokenHeaderField = @"HTTP_USER_ACCESS_TOKEN";
 	NSLog(@"User: %@", user);
 	[objectManager.client setValue:[DBUser currentUser].singleAccessToken forHTTPHeaderField:@"USER_ACCESS_TOKEN"];
 	
-	// Testing
-	TTOpenURL(@"db://posts/9");
-	
 	return YES;
 }
 

Examples/RKDiscussionBoardExample/DiscussionBoard/Classes/Models/DBPost.h

@@ -24,6 +24,7 @@
 @property (nonatomic, retain) NSDate* updatedAt;
 @property (nonatomic, retain) NSNumber* userID;
 @property (nonatomic, retain) NSNumber* postID;
+@property (nonatomic, retain) NSString* username;
 
 @property (nonatomic, retain) UIImage* newAttachment;
 

Examples/RKDiscussionBoardExample/DiscussionBoard/Classes/Models/DBPost.m

@@ -22,6 +22,7 @@
 @dynamic updatedAt;
 @dynamic userID;
 @dynamic postID;
+@dynamic username;
 
 @synthesize newAttachment = _newAttachment;
 
@@ -38,6 +39,7 @@
 			@"attachment_path", @"attachmentPath",
 			@"attachment_updated_at", @"attachmentUpdatedAt",
 			@"body", @"body",
+			@"user_login", @"username",
 			nil];
 }
 
@@ -45,17 +47,18 @@
 	return @"postID";
 }
 
-- (NSDictionary*)paramsForSerialization {
+- (id<RKRequestSerializable>)paramsForSerialization {
 	RKParams* params = [RKParams params];
 	[params setValue:self.body forParam:@"post[body]"];
+	NSLog(@"Self Body: %@", self.body);
 	if (_newAttachment) {
 		NSData* data = UIImagePNGRepresentation(_newAttachment);
 		NSLog(@"Data Size: %d", [data length]);
-		[params setData:data MIMEType:@"application/octet-stream" forParam:@"topic[attachment]"];
+		RKParamsAttachment* attachment = [params setData:data MIMEType:@"application/octet-stream" forParam:@"post[attachment]"];
+		attachment.fileName = @"image.png";
 	}
 	
-	// Suppress warning. todo: should this method return an <RKRequestSerializable> by default?
-	return (NSDictionary*)params;
+	return params;
 }
 
 @end

Examples/RKDiscussionBoardExample/DiscussionBoard/Classes/Models/DBTopic.h

@@ -18,5 +18,6 @@
 @property (nonatomic, retain) NSNumber* userID;
 @property (nonatomic, retain) NSDate* createdAt;
 @property (nonatomic, retain) NSDate* updatedAt;
+@property (nonatomic, retain) NSString* username;
 
 @end

Examples/RKDiscussionBoardExample/DiscussionBoard/Classes/Models/DBTopic.m

@@ -15,6 +15,7 @@
 @dynamic userID;
 @dynamic createdAt;
 @dynamic updatedAt;
+@dynamic username;
 
 #pragma mark RKObjectMappable methods
 
@@ -24,7 +25,8 @@
 					@"name",@"name", 
 					@"user_id",@"userID",
 					@"created_at",@"createdAt", 
-					@"updated_at",@"updatedAt", 
+					@"updated_at",@"updatedAt",
+					@"user_login", @"username",
 					nil];
 }
 
@@ -32,7 +34,7 @@
 	return @"topicID";
 }
 
-- (NSDictionary*)paramsForSerialization {
+- (id<RKRequestSerializable>)paramsForSerialization {
 	return [NSDictionary dictionaryWithObjectsAndKeys:
 			self.name, @"topic[name]", nil];
 }

Examples/RKDiscussionBoardExample/discussion_board_backend/app/controllers/posts_controller.rb

@@ -7,19 +7,19 @@ class PostsController < ApplicationController
   before_filter :requre_owner, :only => [:update, :destroy]
   
   index.response do |wants|
-    wants.json{ render :json => collection.to_json(:methods => :attachment_path) }
+    wants.json{ render :json => collection.to_json(:methods => [:attachment_path, :user_login]) }
   end
   create.response do |wants|
-    wants.json{ render :json => object.to_json(:methods => :attachment_path) }
+    wants.json{ render :json => object.to_json(:methods => [:attachment_path, :user_login]) }
   end
   update.response do |wants|
-    wants.json{ render :json => object.to_json(:methods => :attachment_path) }
+    wants.json{ render :json => object.to_json(:methods => [:attachment_path, :user_login]) }
   end
   destroy.response do |wants|
     wants.json{ render :json => {} }
   end
   show.response do |wants|
-    wants.json{ render :json => object.to_json(:methods => :attachment_path) }
+    wants.json{ render :json => object.to_json(:methods => [:attachment_path, :user_login]) }
   end
   
   create.before do

Examples/RKDiscussionBoardExample/discussion_board_backend/app/controllers/topics_controller.rb

@@ -5,19 +5,19 @@ class TopicsController < ApplicationController
   before_filter :requre_owner, :only => [:update, :destroy]
   
   index.response do |wants|
-    wants.json { render :json => collection }
+    wants.json { render :json => collection.to_json(:methods => :user_login) }
   end
   create.response do |wants|
-    wants.json{ render :json => object }
+    wants.json{ render :json => object.to_json(:methods => :user_login) }
   end
   update.response do |wants|
-    wants.json{ render :json => object }
+    wants.json{ render :json => object.to_json(:methods => :user_login) }
   end
   destroy.response do |wants|
     wants.json{ render :json => {} }
   end
   show.response do |wants|
-    wants.json{ render :json => object }
+    wants.json{ render :json => object.to_json(:methods => :user_login) }
   end
   
   create.before do

Examples/RKDiscussionBoardExample/discussion_board_backend/app/models/post.rb

@@ -7,4 +7,8 @@ class Post < ActiveRecord::Base
     attachment.url
   end
   
+  def user_login
+    user.login
+  end
+  
 end

Examples/RKDiscussionBoardExample/discussion_board_backend/app/models/topic.rb

@@ -4,4 +4,8 @@ class Topic < ActiveRecord::Base
   
   validates_presence_of :name
   validates_presence_of :user
+  
+  def user_login
+    user.login
+  end
 end