Advanced Django Template Logic
The docs for the if template tag say:
Use of actual parentheses in the if tag is invalid syntax. If you need them to indicate precedence, you should use nested if tags.
This is a cleaner way to express your logic with nested tags:
{% if A %} {% if B or C %} {{ do stuff }} {% endif %}{% endif %}
Assign whatever inside the parenthesis to a variable.
{% with B or C as D %} {% if A and D %} {{ do stuff }} {% endif %}{% endwith %}PS: This does not work on newer versions.
Alternatively, you can 'expand' the contents of the parenthesis and evaluate it as:
{% if A and B or A and C %} {{ do stuff }}{% endif %}