Railscasts - Multibutton Form

#38

May 30

Multibutton Form

If you have a form with multiple buttons, you can detect which button was clicked by checking the passed parameters. Learn how in this episode.

Tags: views controllers forms

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<!-- projects/new.rhtml -->
<% if params[:preview_button] %>
  <%= textilize @project.description %>
<% end %>
...
<%= submit_tag 'Create' %>
<%= submit_tag 'Preview', :name => 'preview_button' %>

# projects_controller.rb
def create
  @project = Project.new(params[:project])
  if params[:preview_button] || !@project.save
    render :action => 'new'
  else
    flash[:notice] = "Successfully created project."
    redirect_to project_path(@project)
  end
end

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9 comments:

weskycn May 30, 2007 at 03:39

很好，
我很喜欢看你的例子！！

pimpmaster May 30, 2007 at 03:48

This is too funny. I was halfway through a post on railsforum asking how to do exactly this when my RSS alerted me to a new Railscast. Your timing could not be better!

d:)

vigosan May 30, 2007 at 06:04

I'm agree with the first comentary ;)

Geoff Buesing May 30, 2007 at 09:06

Clever stuff!

Alex G May 30, 2007 at 13:49

well done!

Zubin May 30, 2007 at 19:13

One way round the AJAX form problem is to have one submit button, and use a "preview" checkbox.

Gavin Sim May 31, 2007 at 08:57

Another great railscast! please keep them coming!

weskycn Jun 01, 2007 at 18:39

how to use submit_to_remote?
will you give me a example,
i test it 10 hours ,but ,i cannt .
hehe!

flyerhzm Feb 24, 2008 at 22:49

I found the multibutton form can be work only for form_for, but not for form_remote_for

Multibutton Form

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