在 Rails 中获取带有参数的引用 URL

Question

I have a site with the basic rails scaffold, when a user deletes a record the default action is to redirect to the home page. However I would like it to return to the list the user was just looking at. Right now I'm using request.referrer which is technically getting the referral URL but the parameters are not included...
In my rails logs I can see "Started GET /books/book_preview?name=Hunger+Games"
But request.referrer only shows " https://xxxx/books "
I have also tried .original_url and .original_fullpath but those return the path of the current page for the record "/books/HungerGames". I also tried URI(request.referrer).query to at least just get the parameters but that threw an error.

I would like to get the previous path with the parameters like: /books/books_preview?name=Hunger+Games

Also this list is a remote partial that is rendered through JS. You can't see the URL in the browser URL bar only when highlight over it or look in the rails logs. It doesn't even show up in the request when i looked through it using request.inspect .

Thanks in advance for any help! Have been stuck on this all day!

Answer 1

request.referrer

It will give you referral url with query params as well.

Answer 2

You're not getting the query string from the URL, according to this answer (& docs ), you need:

request.fullpath #-> book_preview?name=Hunger+Games

--

As an aside, if you're using this as a lists page, it should be okay. However, if you're wanting to pull specific book records, you'd be better using a member route:

#config/routes.rb
scope "/books" do
   resources :book_preview, only: :show, param: :name #-> url.com/books/book_preview/:name
end

This would give you the ability to return a specific object for that book, negating any need to hack the request path etc.