Hi !
I have these models:
class Invoice < AR::Base
has_many :lines, :class_name => 'InvoiceLine'
end
class InvoiceLine < AR::Base
belongs_to :invoice
end
This fails at the console:
$ ruby script\console
Loading development environment.
>> invoice = Invoice.new
=> #<Invoice:0x3a76060 ...>
>> line = invoice.lines.build
=> #<InvoiceItem:0x3a5d610 ...>
>> invoice.save!
ActiveRecord::RecordInvalid: Validation failed: Lines is invalid
from
./script/../config/../config/../vendor/rails/activerecord/lib/active_record/validations.rb:736:in
`save!'
from (irb):3
>> puts line.errors.full_messages
Invoice can't be blank
I was under the impression that saving the parent should correctly
save the children in has_many relationships. Of course, if I save the
parent before the child, it works. But then I lose #new_record? Of
course, AR::Base has an attribute named @new_record_before_save, but
there are no accessors for it.
http://dev.rubyonrails.org/browser/trunk/activerecord/lib/active_record/associations.rb#L93
seems to imply that the use case above will work, while
http://dev.rubyonrails.org/browser/trunk/activerecord/lib/active_record/associations.rb#L279
says it won't work if "this object" is nil. "this object" is
obviously not nil, but it hasn't received it's primary key yet.
Question #1: Should saving the parent record correctly save the child record ?
Question #2: Should we provide an accessor for @new_record_before_save
Thanks !
--
François Beausoleil
http://blog.teksol.info/
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