for loop template

[Luca Bertolotti]

from the view i give to the template the following variables

selezione = Dbasedett.objects.filter(idbase=mod_id, revdbase=rev_test)

lista = ['test', 'test_one']

Than i return render(.........{'selezione':selezione, 'lista':lista}

In the form i need to do this:

<table>

        

        {% for dati in selezione %} 

            <tr class={% cycle 'odd' 'even' %}>

            <td>{{ dati.pos }}</td> <td>{{ dati.matr }}</td> <td>{{ lista.forloop.counter0 }}</td>

            </tr>

        {% endfor %}

But {{ lista.forloop.counter0 }} is empty 

Any help

thanks

       

[Jani Tiainen]

Counter0 only exists for variables declared within template itself for for loops. Lista isn't for loop variable and thus it's always empty.

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[Pradeep Sukhwani]

Hi Luca,

As far as I'm able to understand you need to print the elements in the lista array corresponding to the current forloop.counter0, if this is the case then you can do:

{% load index %}
{{ lista|index:forloop.counter0 }} // this will print the element in the lista array corresponding to the current forloop counter

Note: I have created the custom template filter like:

from django import template
register = template.Library()

@register.filter
def index(indexable, i):
    return indexable[i]

Docs: Django (For creating the custom template filter)

Example: StackOverflow

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Thanks

Pradeep Sukhwani