Question

我已经安装了act_as_votable gem，并按照说明进行操作，将其添加到我的gemfile中，进行db migration，向模型中添加了“充当votable”，并在控制器中添加了方法。我还更新了索引页面以显示按钮，但是在加载页面时出现以下错误消息： undefined local variable or method `act_as_votable' for User (call 'User.connection' to establish a connection):Class 我以前从未见过此错误，我是红宝石的新手...

为便于理解，这是我的存储库：https://github.com/Angela-Inniss/hair-do

用户模型：

class User < ApplicationRecord

  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :validatable
  has_many :comments
  has_many :hairstyles
  has_many :saved_hairstyles
  act_as_votable
end

发型模型：

class Hairstyle < ApplicationRecord
  belongs_to :user, optional: true
  has_many :comments, dependent: :destroy
  validates :name, presence: true
  validates :description, presence: true
  validates :category, presence: true
  act_as_votable
  mount_uploader :photo, PhotoUploader


end

发型控制器：

 def upvote
    @hairstyle = Hairstyle.find(params[:id])
    @hairstyle.upvote_from current_user
    redirect_to hairstyles_path
  end

  def downvote
    @hairstyle = Hairstyle.find(params[:id])
    @hairstyle.downvote_from current_user
    redirect_to hairstyles_path
  end

index.html.erb：

    <%= link_to like_hairstyle_path(hairstyle), class: 'like' method: :put do %>
      <i class="fa fa-heart">
      <span><%= hairstyle.get_upvotes.size %><span>
      </i>
    <%end %>

    <!--this is a link block- create the block and then add elements inside?-->
      <%= link_to like_hairstyle_path(hairstyle), class: 'like' method: :put do %>
      <i class="fa fa-heart">
      <span><%= hairstyle.get_downvotes.size %><span>
      </i>
    <%end %>

Answer 1

注意该错误消息是什么？

undefined local variable or method 'act_as_votable' for User (call 'User.connection' to establish a connection):Class
                                    ^^^^^^^^^^^^^^

应为：

acts_as_votable

不是：

act_as_votable

（User和Hairstyle都错了。）

用户的未定义局部变量或方法“ act_as_votable”（调用“ User.connection”以建立连接）：类

1 个答案: