Rails Polymorphic - controller & views - ruby-on-rails

Question

Hi I'm trying to create an event depending on the eventable type. the eventable type is either group or shop.
Writing my code, I'm currently sure that their is a better way create my routes and controller (still a rails newbie)
Is there a way to create only one new and create method pass in the eventable type ?
Models:
class Event < ActiveRecord::Base
belongs_to :eventable, polymorphic: true
class Group < ActiveRecord::Base
has_many :events, as: :eventable
class Shop < ActiveRecord::Base
has_many :events, as: :eventable
Routes:
resources :events do
collection do
get :new_national_event
get :new_local_event
post :create_national_event
post :create_local_event
end
do
event-controller:
def index
#search = Search.new(params[:search])
#shop = find_user_shop(#search.shop_id)
#group = #shop.group
#shop_events = #shop.events
#group_events = #group.events
end
def new_national_event
#user = current_user
#event = #user.group.events.new
end
def new_local_event
#shop = find_user_shop(#search.shop_id)
#event = #shop.events.new
end
def create_national_event
user = current_user
#event = user.group.events
if #event.save!
flash.now[:notice] = "Votre événement national a bien été enregistré"
render :index
else
flash.now[:error] = "Erreur lors de l'enregistrement du événement national"
render :new
end
end
def create_local_event
user = current_user
#event = user.group.shop.events
if #event.save!
flash.now[:notice] = "Votre événement local a bien été enregistré"
render :index
else
flash.now[:error] = "Erreur lors de l'enregistrement du événement local"
render :new
end
end
views:
index.html.slim
= link_to new_national_event_events_path
= link_to new_local_event_events_path
new_national_event_events_path.html.slim
= form_for #event, :url => create_national_event_events_path, :method => :post do |f|
div class="field"
= f.text_field :title, :required => true
div class="field"
= f.text_field :threshold, :required => true
div class="form-actions"
=f.submit "Create", class: "btn blue"

Answer 1

If it is just the routing you are concerned with, and not the number of actions, you can use constraints to allow a single path variable send the request to one of a multiple number of actions, this can be useful in some cases where you may want to have multiple buttons to multiple actions all reading from a single form, or if you just want to simplify your routes variable naming.
use the commit_param_routing gem and in your routes file you can write something like:
resources :events do
collection do
post :save, constraints: CommitParamRouting.new(EventController::CREATENATIONAL), action: :create_national_event
post :save, constraints: CommitParamRouting.new(EventController::CREATELOCAL), action: :create_local_event
end
end
add the constants to your controller:
class EventController
CREATENATIONAL = "create national"
CREATELOCAL = "create local"
.....
end
and then all that is left is to add them to your view file submit buttons:
div class="form-actions"
.row
.col-xs-2
=f.submit EventController::CREATENATIONAL
.col-xs-2
=f.submit EventController::CREATELOCAL
sorry for if its not quite what you were looking for or unclear, my first answer!