Rails 4.0.4 custom form_for route - ruby-on-rails

Question

I'm trying to map a form_for to a specific controller and action. I've got the resources: apikey in the routes. All the solutions I've found don't seem to work. The form is placed inside a view of which the parent folder name doesn't correspond to the correct controller. Here is my form with my not working solution:
<%= form_for #key, url: { controller: :apikey, action: :update }, remote: true do |f| %>
<%= f.label :userkey, "Key" %>
<%= f.text_field :userkey %>
<%= f.submit "Update" %>
<% end %>
Here is my controller:
class ApikeyController < ApplicationController
def index
end
def update
respond_to do |format|
if #key.update(apikey_params)
format.js
else
format.html { render action: 'edit' }
end
end
end
private
def apikey_params
params.require(:apikey).permit(:userkey)
end
end
This is the log I get in the console:
Started GET "/accounts?utf8=%E2%9C%93&_method=patch&apikey%5Buserkey%5D=thekey&commit=Update"
As you can see, it doesn't call the apikey but the accounts controller. What am I doing wrong?
Update
A little weird, as I didn't really change anything, I now get this error when opening the site:
No route matches {:action=>"update", :controller=>"apikey"}
This is my rake routes:
apikey_index GET /apikey(.:format) apikey#index
POST /apikey(.:format) apikey#create
new_apikey GET /apikey/new(.:format) apikey#new
edit_apikey GET /apikey/:id/edit(.:format) apikey#edit
apikey GET /apikey/:id(.:format) apikey#show
PATCH /apikey/:id(.:format) apikey#update
PUT /apikey/:id(.:format) apikey#update
DELETE /apikey/:id(.:format) apikey#destroy
Update 2
Originally I had the form inside a bootstrap modal, like this:
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title" id="myModalLabel">Change API key</h4>
</div>
<div class="modal-body">
<form role="form">
<div class="form-group">
<%= form_for #key, method: "post", remote: true do |f| %>
<%= f.label :userkey, "Key" %>
<%= f.text_field :userkey, class:"form-control", id:"apikeyinputfield" %>
<%= f.submit "Update", class: "btn btn-success btn-sm" %>
<% end %>
</div>
</form>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="button" id="submitnewapikey" data-dismiss="modal" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
If I delete the surrounding modal, the form automatically to map to the correct controller and action. This is not the case when surrounded by the modal. Really weird. Maybe the modal JS code messes up the form_for JS code.

Answer 1

You don't actually need to specify the url in form_for.
If no url is specified form_for will automatically identify which controller and method based on the #key parsed to it, regardless of what view the form is located.
<%= form_for #key, remote: true do |f| %>
<%= f.label :userkey, "Key" %>
<%= f.text_field :userkey %>
<%= f.submit "Update" %>
<% end %>
the piece code above can have the following outcomes:
if #key is a new record ( #key.new_record? returns true):
The form will send the request to ApikeyController create action
if #key is a not a new record ( #key.new_record? returns false), which is your case:
The form will send the request to ApikeyController update action
More info can be found here.
Hope this can help you.