问题

I've read through the relevant Stack questions but still seem to be hitting a routing error with the following code:

Routes.rb

resources :memberships do
  put :toggleon
  put :toggleoff
end

Memberships_controller.rb

 def toggleon
    @membership = Membership.find(params[:id])
    @membership.update_attributes(:active => true)
    if user.id == membership_id 
       redirect_to root_path
    else
       redirect_to group
    end
 end

 def toggleoff
    @membership = Membership.find(params[:id])
    @membership.update_attributes(:active => false)
          if user.id == membership_id 
       redirect_to root_path
    else
       redirect_to group
    end
 end

Show.html.erb

  <% if this_membership.active %>
    <%= link_to 'Pause', this_membership, controller: :memberships, method: :toggleoff, style: 'color:#ccc' %>
  <% else %>
    <%= link_to 'Start', this_membership, controller: :memberships, method: :toggleon, style: 'color:green' %>
  <% end %>

Error text

Started POST "/memberships/13" for 127.0.0.1 at 2011-09-27 23:35:35 +0100

ActionController::RoutingError (No route matches "/memberships/13"):

I can destroy memberships just fine but toggling the membership activity is proving tricky.

Thanks in advance!

Second attempt

                  <%= link_to("Pause", membership_toggle(@membership), :method => :put, :title => "This toggles it off") %>
                  <% else %>
                  <%= link_to("Toggle On", membership_toggle(@membership), :method => :put, :title => "This toggles it on") %>

and

def toggle
   @membership = Membership.find(params[:id])
   @membership.toggle!(active)
end

and

resources :memberships do
   member do
      put :toggle
   end
end

now gives me this error...

undefined method `membership_toggle' for #<#<Class:0x00000102e69bc0>:0x00000102e66ec0>

回答1:

Links using your routes are going to be:

link_to("Toggle On", membership_toggleon_url(membership), :method => :put, :title => "This toggles it on")
link_to("Toggle Off", membership_toggleoff_url(membership), :method => :put, :title => "This toggles it off")

You need to supply :method => :put to the link_to method given that's what you have the route as in your routes file.

Something like this can be achieved with a single action:

resources :memberships do
  member do
    put :toggle
  end
end

Then you can make use of a single boolean field in your controller by using the Rails toggle method.

This will let you do something like:

@membership.toggle(:on)

回答2:

Try setting the route as being :on => :member.

Also, there's an atomic toggle! method that does what its name implies.

回答3:

Kept having issues with various techniques but eventually found this article:

http://buckybits.blogspot.com/2011/09/simple-ajax-property-toggle-in-rails-30.html

BOOM!

来源：https://stackoverflow.com/questions/7576497/toggling-a-boolean-with-link-to

标签

ruby-on-rails

ruby-on-rails-3

link-to

Toggling a boolean with link_to

问题