跳过验证相关的对象 - 导轨的ActiveRecord [英] Skip validation for related objects - rails activerecord

问题描述

 类作者
  的has_many：书籍

  验证：电子邮件：presence =＆GT;真正
结束

类图书
  belongs_to的：作者

  验证：标题：presence =＆GT;真正
结束
 

跳过验证很简单：

  A = Author.new
a.save（：验证=＆GT;假）
 

不过，我需要跳过笔者验证没有跳过书的验证创建一本书的时候，像这样的：

  B = Book.new
b.tit​​le =一书

b.author = Author.last
b.save
 

解决方案

由于笔者验证显得不是那么重要，同时节省你的模型，你可以写这样的书型号：

 类图书
  belongs_to的：作者：验证=＆GT;假

  验证：标题：presence =＆GT;真正
结束
 

这样，作者验证将被跳过，同时节省。

class Author
  has_many :books

  validates :email, :presence => true
end

class Book
  belongs_to :author

  validates :title, :presence => true
end

Skipping validations is easy:

a = Author.new
a.save(:validate => false)

However, I need skip author validations when creating a book without skipping books validations, like this:

b = Book.new
b.title = "A Book"

b.author = Author.last
b.save

解决方案

Since author validation seems not so important while saving your model, you could write your Book model like this:

class Book
  belongs_to :author, :validate => false

  validates :title, :presence => true
end

This way, authors validations will be skipped while saving.

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