Batch Looping A Model With Ruby

Question

I know of the find_in_batches method for ActiveRecord, but this doesn't allow me to set my :order or :limit.

I am trying to loop through my data, and for every 6 items I want to wrap them in a <div>.

I was trying to whole...

<%
i = 0
@media.each do |media|
%>
<% if i%6 %><div class="section"><% end %>
    [...]
<% if i%6 %></div><% end %>
<%
i += 1
end
%>

But I feel this isn't efficient the "Rails" way. Could I possibly split up my array into 4 different arrays of 6? I am trying to find the best approach to this and was hoping you guys could help.

In the end I need it to come out something like this:

<!--
  I have 24 items in my array, and I need to wrap every 6 inside a div.
-->
<div class="section">
   <div class="item"></div>
   <div class="item"></div>
   <div class="item"></div>
   <div class="item"></div>
   <div class="item"></div>
   <div class="item"></div>
</div>

<div class="section">
   <div class="item"></div>
   <div class="item"></div>
   <div class="item"></div>
   <div class="item"></div>
   <div class="item"></div>
   <div class="item"></div>
</div>

<div class="section">
   <div class="item"></div>
   <div class="item"></div>
   <div class="item"></div>
   <div class="item"></div>
   <div class="item"></div>
   <div class="item"></div>
</div>

<div class="section">
   <div class="item"></div>
   <div class="item"></div>
   <div class="item"></div>
   <div class="item"></div>
   <div class="item"></div>
   <div class="item"></div>
</div>

Thanks in advance!

Answer 1

You want in_groups_of:

<% @items.in_groups_of(6) do |group| %>
    <div class="section">
        <% group.each do |item| %>
            <div class="item"></div>
        <% end %>
    </div>
<% end %>