Menu
I'm using Rails 3 and have have a page that outputs a list of posts from the database. I'd like to be able to delete a post from a link.
The 2nd example below works, but the first doesn't. Anybody know why the first won't work? My view contains:
# this link sends a "GET" request which asks for the #show function
<%= link_to 'Delete', post, :method => :delete %>
# this link sends the proper "DELETE" request which asks for the #destroy function
<%= button_to 'Delete', post, :method => :delete %>
My routes file contains the following:
resources :posts
337
Make sure that your <head> section in the layout includes the following:
<%= javascript_include_tag :defaults %>
<%= csrf_meta_tag %>
In Rails 3, the delete requests are being handled with the help of JavaScript to ensure that the request is being sent correctly. If you don't have the csrf meta tags and the required JavaScript code, delete links won't work. The :defaults JavaScript files include--among others--prototype.js, and application.js. The latter contains the stuff that makes the link work, but relies on the Prototype framework.
If you don't want to use the default Prototype JavaScript libraries, there are ports of application.js for several other frameworks. You can find the jQuery one here, for instance.
Buttons will still work regardless of JavaScript, as the HTML code generated with button_to includes all necessary information by itself. This is why you're seeing the button work while the link doesn't.
129
looks like
<%= javascript_include_tag :defaults %>
is no longer supported
http://apidock.com/rails/ActionView/Helpers/AssetTagHelper/JavascriptTagHelpers/javascript_include_tag
Instead, you should use
<%= javascript_include_tag 'application' %>
I had the same problem in rails 5.2.3 and this helped me:
layout head:
<%= javascript_include_tag "rails-ujs" %>
config/initializers/assets
Rails.application.config.assets.precompile += %w( rails-ujs.js )
In my case, I was using following.
<%= javascript_include_tag :defaults %>
<%= csrf_meta_tag %>
I was also using jQuery by including jQuery just below default prototype JS. That was causing some sort of conflict.
3
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
