Django Template For Loop: How do you perform an action for the first record?

Question

Hi Guys,

I know django purposely does not allow a whole lot of logic in the templates. However sometimes you are required to evaluate something and based on that change your options.

How do you change a value in a template or insert something only if it's the first record? But you would still like to loop through the rest. For example, my template code below:

    {% for object in object_list %}
     <div id="t{{ object.id }}-header" class="content_headings title_highlight" >{{ object.title }}</div>
     <div id="t{{ object.id }}-content">
         ......

Similar code in a PHP template:

<div id="t<?php if ($i != 1) { echo $i-1; } ?>-header" class="content_headings<?php if ($i == 1) { ?> title_highlight<?php } ?>" ><?php the_title(); ?></div>  
<div id="t<?php if ($i != 1) { echo $i-1; } ?>-content">

Answer 1

{% for object in object_list %}
<div id="t{{ object.id }}-{%if forloop.first%}header{%else%}content{%endif%}" class="content_headings title_highlight" >{{ object.title }}</div>
...

Answer 2

forloop.first is the way to go. I think all you need to do is slightly change Tiago's answer, and get something like this:

{% for object in object_list %}
    <div id="t{% if not forloop.first %}{{ object.id }}{% endif %}-header" class="content_headings{% if forloop.first %} title_highlight{% endif %}">
        {{ object.title }}
    </div>
    <div id="t{% if not forloop.first %}{{ object.id }}{% endif %}-content">
{% endfor %}

I've checked that against your PHP code and it seems to be doing almost exactly the same (I am not taking 1 from {{ object.id }} because it shouldn't make a difference as long as the IDs are unique, right?)