Silva_PT_SCP Silva_PT_SCP - 2 months ago 16x
Ruby Question

Ruby On Rails scaffold need to include foreign keys?

I'm learning the basics of ruby on rails and I want to make some simple queries but I have a doubt:

I will have these models:

class Client < ActiveRecord::Base
has_one :address
has_many :orders
has_and_belongs_to_many :roles

class Address < ActiveRecord::Base
belongs_to :client

class Order < ActiveRecord::Base
belongs_to :client, counter_cache: true

class Role < ActiveRecord::Base
has_and_belongs_to_many :clients

Now, I will use scaffold to generate all the things, and I want to know if I have to directly put the foreign keys in the scaffols, like:

rails generate scaffold Adress street:string number:integer client_id:integer

Or when I make those associations and then migrate my db they will be implicit?

I don't know if I explain myself in the best way.



Yep, there is no reference. You need to either pass the client_id or a reference to Client model, e.g:

rails generate scaffold Address street:string number:integer client_id:integer:index 


rails generate scaffold Address street:string number:integer client:references