用於 Rails 4 的 attr_accessible

Question

你好，我需要使用 attr_accessible 或類似的東西。我是 Ruby On Rails 的新手

那是我的post.rb文件

    class Post < ActiveRecord::Base
  has_many :comments

  attr_accessible :body, :title, :published, :author, :author_id
  belongs_to :author, :class_name => "AdminUser"


  validates_presence_of :body,:title
  scope :published, where(:published => true)

  def content
    MarkdownService.new.render(body)
  end

  def author_name
    if author
      author.name
    else
      "Nobody"
    end
  end


end

我能為 attr_accesible 做些什么感謝您的回答。

Answer 1

Rails4 使用強參數而不是 attr_accessibles。

有關更多信息，請訪問文檔

Answer 2

為此，您需要使用Strong Params ：

#app/models/post.rb
class Post < ActiveRecord::Base
  has_many :comments
  belongs_to :author, :class_name => "AdminUser"

  validates_presence_of :body,:title
  scope :published, where(:published => true)

  def content
    MarkdownService.new.render(body)
  end

  def author_name
    if author
      author.name
    else
      "Nobody"
    end
  end


end

#app/controllers/posts_controller.rb
def new
    @post = Post.new
end

def create
    @post = Post.new(post_params)
end

private

def post_params
    params.require(:post).permit(:body, :title, :published, :author, :author_id)
end