Filtering a model by a limited but dynamic number of parameters in a get request?

Question

Django

Tell the Django view logic to filter the model by several possible parameters from the get request. Type the client can filter only on one field, and can on all. It can be by date period and at the same time select only the beginning / from and not select by, with the same price. I can't figure out how to keep track of all this.

Answer 1

If it is very rough, then something like this:

# ... Где-то здесь определяем quryset как нефильтрованный набор
title = request.GET.get('title')
price_min = request.GET.get('price_min')
price_max = request.GET.get('price_max')
if title:
  quryset = quryset.filter(title=title)
if price_min and price_max:
  quryset = quryset.filter(price__range=(price_min, price_max))
elif price_min:
  quryset = quryset.filter(price__gte=price_min)
elif price_max:
  quryset = quryset.filter(price__lt=price_max)

The main thing is not to forget
quryset =
and not to write if instead of elif for paired parameters, such as price_min, price_max, and then everything will work.