[Rails] ActiveRecord on data integrity

[Marten Veldthuis]

Luis G. Gómez wrote:
> Say, if I had:
> 
> class Project < ActiveRecord::Base
>    belongs_to :portfolio
>    has_one :project_manager
>    has_many :milestones
>    has_and_belongs_to_many :categories
> end
> 
> ...would AR errase a project's milestones if I errased the project that 
> owns them?

It can, but you need to specify that milestones are dependent on the 
project:

     has_many :milestones, :dependent => true

-- 
Marten Veldthuis