ruby-on-rails – 在不同的控制器中渲染部分(不嵌套)

undefined method `model_name' for NilClass:Class

我认为这是因为默认_form使用一个实例变量,当从单独的控制器调用时,该实例变量不存在.所以我尝试将LogEntry _form.html.erb转换为使用局部变量,并通过render调用传递它们.之后这里是错误：

Model LogEntry does not respond to Text

如何将这个部分包含在不同的控制器的显示页面中？

楷模：

class LogBook < ActiveRecord::Base
  belongs_to :User
  has_many :LogEntries,:dependent => :destroy
end

class LogEntry < ActiveRecord::Base
  belongs_to :LogBook,:class_name => "log_book",:foreign_key => "log_book_id"
end

LogEntry _form.html.erb(使用局部变量)：

<%= form_for(log_entry) do |f| %>
  <% if log_entry.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(log_entry.errors.count,"error") %> prohibited this log_entry from being saved:</h2>

      <ul>
      <% log_entry.errors.full_messages.each do |msg| %>
        <li><%= msg %></li>
      <% end %>
      </ul>
    </div>
  <% end %>

  <div class="field">
    <%= f.label :Text %><br />
    <%= f.text_field :Text %>
  </div>
  <div class="actions">
    <%= f.submit %>
  </div>
<% end %>

LogBook show.html.erb：

<p id="notice"><%= notice %></p>

<p>
  <b>Name:</b>
  <%= @log_book.name %>
</p>

<%= render 'log_entries/form',:log_entry => @log_book.LogEntries.new %>



<%= link_to 'Edit',edit_log_book_path(@log_book) %> |
<%= link_to 'Back',log_books_path %>