Question

我的申请中有很多分页;它们看起来都很相像;除了一个工作以外都很好。一个破碎的一个在最后一步中断。详情如下。我有3个类 - Micropost，Category，Selection。我有一个指向details_controller的链接，它提供了一个视图/选择/详细信息列表，它反过来呈现部分/选择/详细信息。代码成功进入最后一个视图并在第三行中断，错误消息“未定义的局部变量或方法`micropost'用于＃＆lt;＃＆lt; Class：....”这里的任何帮助将不胜感激。



class Micropost < ActiveRecord::Base
  attr_accessible :content, :category_content, :selection_content, :category_id, :selection_id, :user_id

  belongs_to :user
  belongs_to :category
  belongs_to :selection
  validates :user_id, presence: true
  validates :category_content, presence: true
  validates :selection_content, presence: true
end


class Category < ActiveRecord::Base
  attr_accessible :content, :id, :count, :c_count
  has_many :selections
  has_many :microposts
end

class Selection < ActiveRecord::Base
  attr_accessible :content, :count, :category_id
  belongs_to :category
  has_many :microposts
end

class Micropost < ActiveRecord::Base attr_accessible :content, :category_content, :selection_content, :category_id, :selection_id, :user_id belongs_to :user belongs_to :category belongs_to :selection validates :user_id, presence: true validates :category_content, presence: true validates :selection_content, presence: true end class Category < ActiveRecord::Base attr_accessible :content, :id, :count, :c_count has_many :selections has_many :microposts end class Selection < ActiveRecord::Base attr_accessible :content, :count, :category_id belongs_to :category has_many :microposts end

查看链接

details_controller

<li>
  <span class="selection">
    <%= selection.content %>
    &nbsp &nbsp
    ( <%= selection.count %> )
    &nbsp   &nbsp
    <%= link_to "Details", controller: :details, param1: selection.id, param2: selection.category_id %>
  </span>
</li>

查看：/ selections / detailslist

class DetailsController < ApplicationController
  require 'will_paginate/array'
  respond_to :html, :js

  def index
    #@category = Category.find_by_id(params[:param2])
    @selection = Selection.find_by_id(params[:param1])
    @microposts = @selection.microposts.paginate(page: params[:page])
    render '/selections/detailslist'
  end
end

查看：选择/详细信息

<% @category = Category.find_by_id(@selection.category_id) %>
<h3> <%= @category.content %>   </h3>
    <br>
    <%= @selection.content %>
    &nbsp
    ( <%= @selection.count %> )
    <br>
<ol class="selections">
  <%= render partial: 'selections/details', collection: @microposts %>
</ol>
<%= will_paginate @microposts %>

错误讯息：未定义的局部变量或方法`micropost'用于＃＆lt;＃＆lt;类：0x007fed1811ba90＆GT;：0x007fed17bc9fb0＆GT;

分页后未定义的局部变量或类的方法

0 个答案: