Can I evaluate expressions in a django template?

Question

I'm trying to display table rows with alternating colors. For that, I have two css classes row1 and row2 that I'd like to assign in an alternating pattern to the rows of a table. Ideally, I'd determine if the row is odd or even based on the forloop.counter variable

This is what I'd like the template to do (invalid code, but I think it's self explaning).

{% for norma in normas %}
{% if forloop.counter %2 != 0 %}
<tr class="row1">
{% else %}
<tr class="row2">
{% endif %}
    <td>yadda... yadda</td>
    .
    .
    .
{% endfor %}

Is there a way to do this within django template system?

here is solution to your problem this post explains deeply how to get alternating row colors http://stackoverflow.com/questions/459161/alternate-row-coloring-in-django-template-with-more-than-one-set-of-rows — Mayank, Mar 14 '12 at 09:10

score 3 · Accepted Answer · answered Mar 14 '12 at 09:08

3

Use cycle - the example shows this exact purpose

answered Mar 14 '12 at 09:08

JamesO

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Thanks, this solves my particular problem. Is there a way to evaluate expressions though? – dariopy Mar 14 '12 at 18:39

score 1 · Answer 2 · answered Mar 14 '12 at 09:13

1

Just use in your {%for%} loop :

<tr class="{% cycle 'row1' 'row2' %}>

django templete will cycle through each row. you can add as many items in the cycle.

answered Mar 14 '12 at 09:13

Nuno_147

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score 1 · Answer 3 · edited May 23 '17 at 12:11

1

the followin post explains how to get alternating row colors in Django.

Alternate Row Coloring in Django Template with More Than One Set of Rows

edited May 23 '17 at 12:11

Community

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answered Mar 14 '12 at 09:13

Mayank

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Can I evaluate expressions in a django template?

3 Answers3