Question

I’m reading the Pragmatic rails app book and running into a pb when the books says ‘Run this code’.

My problem is how to run the Account.creation.do block code? How to run this?. The console only accepts one line. Link to the file below.

So, now let’s write the code to transfer money between two accounts. It’s pretty straightforward:

peter = Account.create(:balance => 100, :number => "12345")
paul  = Account.create(:balance => 200, :number => "54321")
Account.transaction do 
  paul.deposit(10)
  peter.withdraw(10)
end

We check the database, and, sure enough, the money got transferred:
depot> sqlite3 -line db/development.sqlite3 "select * from accounts" 
  id = 1
  number = 12345
  balance = 90

  id = 2
  number = 54321
  balance = 210

Transactions file example

Answer 1

Type it all in one line if you want:

Account.transaction do; paul.deposit(10); peter.withdraw(10); end

The ; is to be used to separate multiple statements on one line.

But IRB should allow you to type multiple lines as well. Try that too after you have done the above.