当一个模型属于 Rails 中的另一个模型时，如何列出它？

Question

I have two models: Day and Lecture, lecture belongs to day and day has many lectures, I want list all the lecture in each day:

<% @days.each do |day| %>
<tr>
  <td><%= day.name %></td>
  <td><%= day.date %></td>
  <td><%= link_to 'Destroy', day_path(day),
                method: :delete,
                data: { confirm: 'This will delete all the lectures in this day. Do you want to continue?' } %></td>


  <br/>
  <%= render @day.lectures %>
  <br/>
</tr>

but it does not work with '@day.lectures'.

btw, i already have _lecture.html.erb file and it should be a problem of how to write it. If not, I can put on my routes or more information. Thanks!

Answer 1

Remove @ from your @day instance so that the line is

<%= render day.lectures %>

You're inside the iteration of @days and each day is referenced as day