I have bellow one model has many other model.
The question is when i update 2 models. One model is validate failed.
The other model can not rollback.
Sample:
class User < ActiveRecord::Base
has_many :products, :dependent => :destroy
validates_presence_of :name
end
class Product < ActiveRecord::Base
belongs_to :user
end
do a update
User.transaction do
user = User.find(1)
p user.products # => [#product1,#product2]
user.products = [#product3, #product4]
user.name = “”
user.save
end
=>
validate error: Name can’t be blank
But when you run bellow.
user = User.find(1)
p user.products # => [#product3,#product4]
How can i resolve this problem?
I don’t need products are updated.
I use
.mysql innoDB
.Rails 3.0.3
.activerecord (3.0.3)