Question

我想确保在用户决定发布文章时为模型设置发布日期。

我有这个：

class Article < ApplicationRecord
  before_validation :check_published

  validates :publish_date, presence: true, if: :article_published?

  def check_published
    self.publish_date = Time.now if self.published
  end

  def article_published?
    self.published
  end  
end

在我的文章模型测试文件中：

require 'test_helper'

class ArticleTest < ActiveSupport::TestCase
  def setup
    @new_article = {
      title: "Car Parks",
      description: "Build new car parks",
      published: true
    }
  end

  test "Article Model: newly created article with published true should have publish date" do
    article = Article.new(@new_article)
    puts "article title: #{article.title}"
    puts "article published: #{article.published}"
    puts "article publish date: #{article.publish_date}"
    assert article.publish_date != nil
  end
end

测试失败。

我正在做什么，或者我需要在控制器中做这件事吗？

Answer 1

article = Article.new(@new_article)不会将文章对象保存到数据库，它只是创建一个文章对象。并且publish_date验证没有运行。尝试设置：

article = Article.create(@new_article)

Rails验证发布日期仅在发布时存在

1 个答案: