How can I filter data in Django templates?

How can I filter data in Django templates?

You can use the filter template tag to filter data in Django templates. For example, if you have a list of objects, you can filter them based on a specific attribute.

Can you give me an example of how to use the filter tag?

Sure! If you have a list of books and you want to display only the books published after 2020, you can do something like this: {% for book in books|filter:published_year__gt:2020 %}.

What if I want to filter by multiple conditions?

You can chain filters together. For instance, you can filter by both published_year and author like this: {% for book in books|filter:published_year__gt:2020|filter:author='John Doe' %}.

Are there any performance considerations I should be aware of?

Yes, filtering in templates can be less efficient than filtering in views. It's often better to filter your data in the view and pass the filtered data to the template.