Persistance of good data on validation fail

rubyonrails-talk
1

Thank you everyone for the previous validation help. I have one last question... Can anyone tell me if there is a standard way to deal with a failed validation and loss of the data that was partially completed on the form. I currently use a redirect back to the same action and lose all the data (obviously). Do I send valid data back and forth in the params hash?

if @question.errors.any? redirect_to(:controller => "questions", :action => "new", :minisection_id => session[:minisection_id], :question_type => "standard")

There has to be a standard way to do this I assume...

2

render the view - @question will be given to the view for rendering the previous values

render :new if @question.errors.any?

3

further this url will help with any other questions

http://guides.rubyonrails.org/layouts_and_rendering.html

4

Jodi S. wrote in post #1099859:

further this url will help with any other questions

Layouts and Rendering in Rails — Ruby on Rails Guides

Thank you.

5

When I "render :new", the view gets called correctly but there is a partial in the new.html.erb view which does not render.

<%= form_for @question, :as=> :question, :url => { :action => "create"} do |f| %>   <% if @question_type == "standard" %>       <%= render 'new_and_edit_fields', f: f %>

Can I not render a render??

6

Never mind... got it!

@question_type == "standard"

7

Dave, consider this refactor

create an instance method in your question model

def standard?

question_type == “standard”

end

then your view/controller syntax get a bit more readable

@question.standard?

8

My standard response for beginners who have not yet got the basics of rails is to work right through a good tutorial such as railstutorial.org, which is free to use online. That should cover your question and many others that you have yet to ask.

Colin

9

the view gets called correctly but there is a partial http://www.hqew.net