Railscasts - Multibutton Form

#38

May 30, 2007

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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13 comments

1. weskycn May 30, 2007 at 03:39

很好，
我很喜欢看你的例子！！

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2. 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:)

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3. vigosan May 30, 2007 at 06:04

I'm agree with the first comentary ;)

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4. Geoff Buesing May 30, 2007 at 09:06

Clever stuff!

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5. Alex G May 30, 2007 at 13:49

well done!

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6. Zubin May 30, 2007 at 19:13