CODEWITHSUNDEEP
ruby-on-rails
Trenton Tyler
Trenton Tyler

Reputation: 1712

Pass parameter of current object into create method Rails

Instead of having to create a separate controller for nested attributes such as this: 

def new
    @map = @account.maps.build
end

def create
    @map = @account.maps.create(params[:map].permit(:))
end

How can I pass the parameter of account_id to the create method in the maps controller rather than creating a whole seperate controller for accounts_maps?

For example:

If I am creating a map under this url: http://localhost:3000/accounts/1/maps/new I need the account_id of the map to be 1 when it is created. How can this be achieved?

Upvotes: 0

Views: 938

Answers (1)

Evekay
Evekay

Reputation: 86

If you had a route defined like this in routes.rb

resources :accounts do
  resources :maps
end

the url would be http://localhost:3000/accounts/17/maps, and you could access account id with

params[:account_id]

which would be 17 in this case. Also, @account.maps.build automatically adds account_id to map, what you might be missing is declaring @account.

In your example, you could do

before_action :find_account

def new
  @map = @account.maps.build
end

def create
  @map = Map.create(map_params)
end

private

def find_account
  @account = Account.find(params[:account_id])
end

def map_params
  params.require(:map).permit(:name, :account_id) #permit all map params
end

Upvotes: 1

Related Questions