#38 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.

<!-- 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