14 Mar 2010, 21:12
Lisa Gay (1 post)
Let me first say, I’m really enjoying the book so far. I have been trying to go through the examples with writing the code myself to make sure I’m getting the concepts. I understand everything you are talking about in section 6.4; but trying to run the code in this section was a big leap in some missing code examples somewhere.
I ran this command and got an error that says find_by_number is an undefined method.
f = Flight.find_by_number ‘123’
Ok, so I could code this myself at this point I suppose. But my bigger question is how did the reservation table ever get created in the database. I ran the command ‘ruby script\generate resource reservation’ to get the files created. Then ran a ‘rake db:migrate’. But it seems that create the reservation table with an id column instead of with flight_id and passenger_id columns. How does the table reservation get created in the database so the code in section 6.4 will work correctly?
20 May 2010, 13:41
Jeff Cohen (19 posts)
It sounds like you might be missing the migration for the Flight model (from p. 97):
After rake db:migrate, that should solve the find_by_number error you were getting.
Regarding the reservation, if you take a look at your migration file for the reservation table, you should see something like this:
That will provide the foreign keys that will associate a reservation to both a flight and a passenger.
Does this help at all?
|You must be logged in to comment|