Ruby on rails 嵌套对象并验证
我有一个嵌套对象，它是一种用户类型（比如Sub）。我假设在保存Sub时，用户验证也会运行，但显然不会？创建Sub时如何在User中运行所有验证？验证确实从继承的模型运行 这里有一个测试用例显示它是有效的 测试用例迁移：Ruby on rails 嵌套对象并验证,ruby-on-rails,Ruby On Rails,我有一个嵌套对象，它是一种用户类型（比如Sub）。我假设在保存Sub时，用户验证也会运行，但显然不会？创建Sub时如何在User中运行所有验证？验证确实从继承的模型运行 这里有一个测试用例显示它是有效的 测试用例迁移： class CreateUser < ActiveRecord::Migration def self.up create_table :users do |t| t.column :name,:string t.column :emai
class CreateUser < ActiveRecord::Migration
def self.up
create_table :users do |t|
t.column :name,:string
t.column :email, :string
t.timestamps
end
end
def self.down
drop_table :users
end
end
class CreateUserclass User < ActiveRecord::Base
validates_presence_of :name
end
class Sub < User
validates_presence_of :email
end
class用户>> b = Sub.create()
=> #<Sub id: nil, name: nil, email: nil, created_at: nil, updated_at: nil>
>> b.save
=> false
>> b.errors
=> #<ActiveRecord::Errors:0x2457458 @errors={"name"=>["can't be blank"], "email"=>["can't be blank"]}, @base=#<Sub id: nil, name: nil, email: nil, created_at: nil, updated_at: nil>>
>b=Sub.create（）
=> #
>>拯救
=>错误
>>错误
=>#[“不能为空”]，“电子邮件”=>[“不能为空”]}，@base=>
>> b = Sub.create(:name=>'test')
=> #<Sub id: nil, name: "test", email: nil, created_at: nil, updated_at: nil>
>> b.save
=> false
>> b.errors
=> #<ActiveRecord::Errors:0x243865c @errors={"email"=>["can't be blank"]}, @base=#<Sub id: nil, name: "test", email: nil, created_at: nil, updated_at: nil>>
>> b = Sub.create(:email=>'test')
=> #<Sub id: nil, name: nil, email: "test", created_at: nil, updated_at: nil>
>> b.save
=> false
>> b.errors
=> #<ActiveRecord::Errors:0x2429594 @errors={"name"=>["can't be blank"]}, @base=#<Sub id: nil, name: nil, email: "test", created_at: nil, updated_at: nil>>
>b=Sub.create（：name=>'test'）
=> #
>>拯救
=>错误
>>错误
=>#[“不能为空”]}，@base=#>
>> b = Sub.create(:name=>'test')
=> #<Sub id: nil, name: "test", email: nil, created_at: nil, updated_at: nil>
>> b.save
=> false
>> b.errors
=> #<ActiveRecord::Errors:0x243865c @errors={"email"=>["can't be blank"]}, @base=#<Sub id: nil, name: "test", email: nil, created_at: nil, updated_at: nil>>
>> b = Sub.create(:email=>'test')
=> #<Sub id: nil, name: nil, email: "test", created_at: nil, updated_at: nil>
>> b.save
=> false
>> b.errors
=> #<ActiveRecord::Errors:0x2429594 @errors={"name"=>["can't be blank"]}, @base=#<Sub id: nil, name: nil, email: "test", created_at: nil, updated_at: nil>>
>b=Sub.create（：email=>'test'）
=> #
>>拯救
=>错误
>>错误
=>#[“不能为空”]}，@base=#>
>> b = Sub.create(:email=>'test',:name=>'test')
=> #<Sub id: 4, name: "test", email: "test", created_at: "2009-10-15 22:27:53", updated_at: "2009-10-15 22:27:53">
>> b.save
=> true
>b=Sub.create（：email=>'test'，：name=>'test'）
=> #
>>拯救
=>正确