gistfile1.txt

def get_queryset(self):
    min_amount = self.request.GET.get('min_amount', None)
    max_amount = self.request.GET.get('max_amount', None)
    dc_contains = self.request.GET.get('dc', None)
    min_date = self.request.GET.get('min_date', None)
    max_date = self.request.GET.get('max_date', None)
    
    expenses = expense.objects.all()
    
    if min_amount:
        expenses = expenses.filter(amount__gte=min_amount)
    if max_amount:
    	expenses = expenses.filter(amount__lte=max_amount)
    if dc_contains:
        expenses = expenses.filter(Q(description__icontains=dc_contains) | Q(comment__icontains=dc_contains))
    if min_date:
        expenses = expenses.filter(date__gte=min_date)
    if max_date:
    	expenses = expenses.filter(date__lte=max_date)