From e91a1a0321bd12968cba3cfa504119e74c1caa2c Mon Sep 17 00:00:00 2001 From: Ryan Bigg Date: Wed, 16 May 2012 17:50:46 +1000 Subject: [getting started] re-add new action back to PostsController, explain that it'll be explained in a short while --- guides/source/getting_started.textile | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/guides/source/getting_started.textile b/guides/source/getting_started.textile index 0d247d6299..5c418e3af6 100644 --- a/guides/source/getting_started.textile +++ b/guides/source/getting_started.textile @@ -685,9 +685,18 @@ format, and the existence of associated objects. Validations are covered in deta in "Active Record Validations and Callbacks":active_record_validations_callbacks.html#validations-overview -With the validation now in place, when you call +@post.save+ on an invalid post, it will return +false+. If you open +app/controllers/posts_controller.rb+ again, you'll notice that we don't check the result of calling +@post.save+ inside the +create+ action. If +@post.save+ fails in this situation, we need to show the form back to the user. To do this, change the +create+ action inside +app/controllers/posts_controller.rb+ to this: +With the validation now in place, when you call +@post.save+ on an invalid +post, it will return +false+. If you open +app/controllers/posts_controller.rb+ +again, you'll notice that we don't check the result of calling +@post.save+ +inside the +create+ action. If +@post.save+ fails in this situation, we need to +show the form back to the user. To do this, change the +new+ and +create+ +actions inside +app/controllers/posts_controller.rb+ to these: +def new + @post = Post.new +end + def create @post = Post.new(params[:post]) @@ -699,7 +708,10 @@ def create end -Notice that we use +render+ instead of +redirect_to+ when +save+ +The +new+ action is now creating a new instance variable called +@post+, and +you'll see why that is in just a few moments. + +Notice that inside the +create+ action we use +render+ instead of +redirect_to+ when +save+ returns +false+. The +render+ method is used so that the +@post+ object is passed back to the +new+ template when it is rendered. This rendering is done within the same request as the form submission, whereas the +redirect_to+ will tell the browser to issue another request. If you reload -- cgit v1.2.3