Rails link_to destroy method fails due to invalid authenticity token

Question

I have the following haml code which generates a button:

= link_to 'Delete',
        MODEL_path(MODEL),
        class: 'data-type-button btn btn-negative',
        data: { confirm: 'delete it now!!! ... ?' },
        method: :delete

After pressing the delete button generated, and confirming via the popup that I do want to proceed with the deletion, I am brought to an error screen. This screen tells me that I have an invalid authenticity token. The same code where link_to is replaced with button_to, however, works as it should and the item is deleted.

I want this to be a link_to and not a button_to because of the way that the resulting HTML code lines up. How can I get the link_to to work?

Answer 1

Confirm you have the csrf meta tag in your layout and in the HTML HEAD section.

= csrf_meta_tag

Answer 2

As it turns out, link_to passes parameters via the contents inside of the parenthesis following the path. So in order to get the authenticity token to be passed as a parameter while also using a link_to, you can use the following modification of that code

= link_to 'Delete',
        MODEL_path(id: MODEL.id, authenticity_token: form_authenticity_token),
        class: 'data-type-button btn btn-negative',
        data: { confirm: 'Delete it now!!! ... ?' },
        method: :delete

I actually knew the answer when I posted the question, but after spending a lot of time trying to figure this out and not finding the solution directly on google anywhere, I wanted to post my solution to help any other lost souls out there. I don't know if that is bad practice on this website or not, but if it helps someone then I'm okay with it.