how to render view/index in another view/index? - ruby-on-rails

Question

I dont understand how to insert code into my welcome/index.html.erb file. Here is my code:
Welcomes_controller.rb
def index
#welcomes = Welcome.all
end
Schedules_controller.rb
def index
#schedules = Schedule.all
end
schedules/index.html.erb
<table class="table table-hover">
<thead>
<tr>
<th>Время<br>отправления</th>
<th>Город</th>
<th>Место<br> отправления</th>
<th>Время <br>прибытия</th>
</tr>
</thead>
<tbody>
<% #schedules.each do |s| %>
<tr>
<td><%= s.deptime %></td>
<td><%= s.city %></td>
<td><%= s.street %></td>
<td><%= s.aparttime %></td>
</tr>
<% end %>
</tbody>
</table>
How do I insert that code into welcome/index.html.erb?

Answer 1

To render the schedules index template from the welcomes_controller.rb
def index
#welcomes = Welcome.all
render "/schedules/index"
end
However, this will present a problem because the table in the view depends on an #schedules instance variable to be set and it will return nil because it is not assigned a value in the controller.
you might want to do this:
def index
#schedules = Welcome.all
render "/schedules/index"
end
Which does not really make sense to me from a semantic point of view. You might want to rename the instance variable to something more model agnostic.
In the other answer it was suggested to use a partial. That could actually be a better solution depending on the use case.

Answer 2

create a partial app/views/shared/_index_table.html.erb with the content
<table class="table table-hover">
<thead>
<tr>
<th>Время<br>отправления</th>
<th>Город</th>
<th>Место<br> отправления</th>
<th>Время <br>прибытия</th>
</tr>
</thead>
<tbody>
<% schedules.each do |s| %>
<tr>
<td><%= s.deptime %></td>
<td><%= s.city %></td>
<td><%= s.street %></td>
<td><%= s.aparttime %></td>
</tr>
<% end %>
</tbody>
</table>
Then, app/views/schedules/index.html.erb
<h1>Schedules</h1>
<%= render partial: "shared/index_table", :locals => { schedules: #welcomes } %>
and app/views/welcomes/index.html.erb
<h1>Welcome</h1>
<%= render partial: "shared/index_table", :locals => { schedules: #schedules } %>
This works only if you have the same set of attributes (deptime, city, street, aparttime) on both Welcome and Schedule models