Django jinja queryset filter lenth

[N'BE SORO]

Good evening please

Can you help me?

I want to display the number of items with a filter.
Example:
this call returns 4 elements
{{ item.class.classecours.all|length}}

at the .all level  
make an item.class.classecours.filter(status==True)|length

[Agoua David]

You Can try to use .count instead

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[Agoua David]

As Django template engine do not support the parenthèses you Can try to make a custom filter

[Liu Zheng]

Hi,

Not sure it's a good idea to do database query inside the template. Templates are capable of running some logics but for a heavy-lifting job like database query, it should be a good practice to do it in the view, and only pass the results to the template.

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[N'BE SORO]

thank you

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