CODEWITHSUNDEEP
djangodjango-templates
Jay Jung
Jay Jung

Reputation: 1885

How do I refrain from showing repeat datetime data in a django template forloop?

In a django template, I'm accessing objects in a list filtered by the objects' datetime.

Here's a current image of the object_list onto an HTML table:
table_of_datetime_objects

The time part of the datetime ("11:50a.m") must remain regardless of duplicates.
However, the date part of the datetime ("September 9"), must appear only once for each unique date.

Essentially, what I'm looking for would look something like:
edited_table

How would I go about achieving this effect? I've tried using {% if forloop.first %}, but I'm unable to find a way to target all "firsts" of unique dates.

This is the current code which corresponds to the first image: 

{% for event in object_list %}
<tr>
  <td>{{ event.datetime|date:"F j g:ia e" }}: </td>
  <td><a href="{% url 'detail' event.id %}">{{ event.venue }}</a></td>
</tr>  
{% endfor %}

I've also considered not using the date of the datetime object and manually coding the dates in the HTML, but wouldn't know how to eventually tie the DOM date to the object_list according to date.

Upvotes: 0

Views: 56

Answers (1)

Daniel Roseman
Daniel Roseman

Reputation: 599788

That is exactly what the ifchanged tag is for.

I would split your output into two parts, and use ifchanged on the date only. 

<tr>
  <td>{% ifchanged %}{{ event.datetime|date:"F j" }}{% endifchanged %}</td>
  <td>{{ event.datetime|date:"g:ia e" }}: </td>
  <td><a href="{% url 'detail' event.id %}">{{ event.venue }}</a></td>
</tr>

Upvotes: 1

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