Question

I have a few questions relating to a Transaction object that I’m creating.

Transaction belongs_to Loan and Loan has_many Transactions.

Therefore, I setup a nested route:

resources :loans do
  resources :transactions
end

My question is: How do I pass the loan value into the Transaction’s ‘loan_id’ field? Is this best done in the controller or as a hidden_field in the form? Does the nested route create an easy way to grab this variable?

I assumed this would be done automatically, but the field is empty when I saved it as-is.

Any help would be greatly appreciated!

Answer 1

if you call a specific transaction, the route for a new transaction will be

loans/:loan_id/transactions/new

you could use model association like this: in your create action:

@transaction = Loan.find(params[:loan_id]).transactions.build

that way your new @transaction will be already populated with the loan_id