Rails routes - destroy

[Dave Castellano]

Can't figure out how duplicate routes are differentiated by rails ...
Read routing from inside out and API as well as a few tutorials but
still don't get it!!! For example...

routes.rb
resources :minisections do
resources :questions
end

rake routes:
minisection_question GET
/minisections/:minisection_id/questions/:id(.:format)
questions#show

PUT
/minisections/:minisection_id/questions/:id(.:format)
questions#update

DELETE
/minisections/:minisection_id/questions/:id(.:format)
questions#destroy

In the view:
<%= link_to 'Delete', minisection_question_path(:minisection_id =>
@minisection.id,
:id => question.id),
:confirm => 'Are you sure?',
:method => :delete %>

SO the GET, PUT, and DELETE routes are the same. The view listed above
ends up requesting the first route ie "show" method even though I have
:method => :delete. ...so how to specify to to rails to delete a
question!

Thanks,

Dave

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[Peter Vandenabeele]

There are 2 aspects:

1) resourceful routing

In e.g. the "Rails Routing from the Outside In" tutotial

  http://guides.rubyonrails.org/routing.html#resource-routing-the-rails-default

have a second look at Chapter 2 on Resources. E.g. the table in section 2.2

explains that for the same path (/photos/:id) there are 3 different routes, with

different HTTP verbs GET, PUT, DELETE.

The trick is that there is not only the path (/photos/:id) that differentiates the

route, but also the http VERB that is used. That is typically for a single member

(1 photo, not the collection):

GET for a non-state changing action (e.g. view the photo)

PUT to update a certain resource (e.g. update the description)

DELETE to destroy the resource (delete it)

2) the exact workings of the link_to method

Checkout this

http://api.rubyonrails.org/classes/ActionView/Helpers/UrlHelper.html#method-i-link_to

in detail.

HTH,

Peter

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Peter Vandenabeele
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[Dave Castellano]

Peter Vandenabeele wrote in post #1045942:

> On Sun, Feb 12, 2012 at 4:14 AM, Dave Castellano
> <li...@ruby-forum.com>wrote:
>

>> minisection_question GET

Thank you! Your referral to the API for the link_to led to this:
Note that if the user has JavaScript disabled, the request will fall
back to using GET. I was really on the wrong track! I recently upgraded
to Rails 3.2 and most of my Javascript stopped working. I was going to
try to figure out why after solving this current problem but I guess I
have to move on to the Javascript issues...

Thank you for your help!!

[radhames brito]

Thank you! Your referral to the API for the link_to led to this:
Note that if the user has JavaScript disabled, the request will fall
back to using GET.  I was really on the wrong track! I recently upgraded
to Rails 3.2 and most of my Javascript stopped working.  I was going to
try to figure out why after solving this current problem but I guess I
have to move on to the Javascript issues...

This in case you want an alternative to the js based destroy link 

http://railscasts.com/episodes/77-destroy-without-javascript