Ruby on rails Rails部分：未定义的局部变量

我很少使用rails，所以如果这是显而易见的，请原谅。我已经看了其他的问题，我是从，看起来我做得很正确，但我仍然不能让我的局部变量工作

todays/show.html.erb

<p>
  <strong>Tasks:</strong>  
  <%= render partial: "next_steps/next_step_today", 
        collection: @today_lines %>
</p>

  <p>
    <%= render partial: "next_steps/next_step",
            locals: {next_step: today_line.next_step} %>
    <%= link_to 'x', today_line, method: :delete, data: { confirm: 'Are you sure?' } %>
  </p>

<span class="<%= next_step.complete ? "completed_next_step" : ""%> next_step_span_<%= next_step.id%>">
<%= form_for(next_step, 
      :remote => true, 
      :html => {:'data-type' => 'json', 
                :multipart => true, 
                :id => "edit_next_step_#{next_step.id}_#{rand()}"}
      )  do |f| %>
    <%= f.hidden_field( :id, :value => next_step.id) %>
    <%= f.hidden_field( :note_id, :value => next_step.note_id) %>
    <%= f.hidden_field( :content, :value => next_step.content) %>
    <%= f.hidden_field( :due_date, :value => next_step.due_date) %>
    <%= f.check_box( :complete, :class => "next_step_complete_button" ) %>
    <%= next_step.content %>
<% end %>
</span>

<p>
<strong>Tasks:</strong> 

<% @today_lines.each do |today_line| %>
  <p><%= render today_line.next_step %></p>
<% end %>
</p>

<p>
  <strong>Tasks:</strong>
  <%= render partial: "next_steps/next_step_today", 
    collection: @today_lines %>
</p>

  <p>
    <%= render "next_steps/next_step",
        next_step: next_step_today.next_step %>
    <%= link_to 'x', next_step_today, method: :delete, data: { confirm: 'Are you sure?' } %>
  </p>

错误消息

《今日秀》中的名称错误

显示/../app/views/next_steps/_next_step_today.html.erb，其中第3行出现：

未定义的局部变量或方法“今日线”# 提取的源（第3行附近）：

有什么想法吗

编辑：最终工作代码

todays/show.html.erb

<p>
  <strong>Tasks:</strong>  
  <%= render partial: "next_steps/next_step_today", 
        collection: @today_lines %>
</p>

  <p>
    <%= render partial: "next_steps/next_step",
            locals: {next_step: today_line.next_step} %>
    <%= link_to 'x', today_line, method: :delete, data: { confirm: 'Are you sure?' } %>
  </p>

<span class="<%= next_step.complete ? "completed_next_step" : ""%> next_step_span_<%= next_step.id%>">
<%= form_for(next_step, 
      :remote => true, 
      :html => {:'data-type' => 'json', 
                :multipart => true, 
                :id => "edit_next_step_#{next_step.id}_#{rand()}"}
      )  do |f| %>
    <%= f.hidden_field( :id, :value => next_step.id) %>
    <%= f.hidden_field( :note_id, :value => next_step.note_id) %>
    <%= f.hidden_field( :content, :value => next_step.content) %>
    <%= f.hidden_field( :due_date, :value => next_step.due_date) %>
    <%= f.check_box( :complete, :class => "next_step_complete_button" ) %>
    <%= next_step.content %>
<% end %>
</span>

<p>
<strong>Tasks:</strong> 

<% @today_lines.each do |today_line| %>
  <p><%= render today_line.next_step %></p>
<% end %>
</p>

<p>
  <strong>Tasks:</strong>
  <%= render partial: "next_steps/next_step_today", 
    collection: @today_lines %>
</p>

  <p>
    <%= render "next_steps/next_step",
        next_step: next_step_today.next_step %>
    <%= link_to 'x', next_step_today, method: :delete, data: { confirm: 'Are you sure?' } %>
  </p>

任务：

\u下一步\u今天。html.erb

<p>
  <strong>Tasks:</strong>  
  <%= render partial: "next_steps/next_step_today", 
        collection: @today_lines %>
</p>

  <p>
    <%= render partial: "next_steps/next_step",
            locals: {next_step: today_line.next_step} %>
    <%= link_to 'x', today_line, method: :delete, data: { confirm: 'Are you sure?' } %>
  </p>

<span class="<%= next_step.complete ? "completed_next_step" : ""%> next_step_span_<%= next_step.id%>">
<%= form_for(next_step, 
      :remote => true, 
      :html => {:'data-type' => 'json', 
                :multipart => true, 
                :id => "edit_next_step_#{next_step.id}_#{rand()}"}
      )  do |f| %>
    <%= f.hidden_field( :id, :value => next_step.id) %>
    <%= f.hidden_field( :note_id, :value => next_step.note_id) %>
    <%= f.hidden_field( :content, :value => next_step.content) %>
    <%= f.hidden_field( :due_date, :value => next_step.due_date) %>
    <%= f.check_box( :complete, :class => "next_step_complete_button" ) %>
    <%= next_step.content %>
<% end %>
</span>

<p>
<strong>Tasks:</strong> 

<% @today_lines.each do |today_line| %>
  <p><%= render today_line.next_step %></p>
<% end %>
</p>

<p>
  <strong>Tasks:</strong>
  <%= render partial: "next_steps/next_step_today", 
    collection: @today_lines %>
</p>

  <p>
    <%= render "next_steps/next_step",
        next_step: next_step_today.next_step %>
    <%= link_to 'x', next_step_today, method: :delete, data: { confirm: 'Are you sure?' } %>
  </p>

集合：

确实要求您为本地变量使用部分文件名

---

我在搜索中还发现，如果不使用

partial:

，也可以省略

locals:

，而只使用变量名，这样更简洁。此更改显示在

\u next\u step\u today.html.erb

中。我希望我也可以命名集合变量，而不是使用部分文件名，或者使用each，但这已经足够接近了，并且可以正常工作

Show需要指定分部将使用的密钥名。因此：

<%= render partial: "next_steps/next_step_today", 
    today_lines: @today_lines %>

修正下一步中的拼写，以及：

  <%= render partial: "next_steps/next_step",
      locals: {next_step: today_lines.next_step} %>

---

分部中变量的名称源自分部本身的名称，而非集合的名称

然后，您的_下一步_today.html.erb应如下所示：

<p>
  <%= render partial: "next_steps/next_step",
        locals: {next_step: next_step_today.next_step} %>
  <%= link_to 'x', next_step_today, method: :delete, data: { confirm: 'Are you sure?' } %>
</p>

编辑：如果你想坚持@collection约定，那就是