Filter a Query Set - filter

Question

The following view works great. I pass in student_id and I get a queryset of headers and attendance days related to that student_id. My challenge is that I cannot figure out how to filter my attendance_days queryset by a specific date or date range.
I have tried variations of:
attendance_days = student.zzabsentdetail_set.order_by('-absent_date').filter('absent_date' is between '2021-02-01' and '2021-02-26')
or
attendance_days = student.zzabsentdetail_set.order_by('-absent_date').filter('absent_date' > '2021-02-01')
I would like to filter my zzabsent_detail queryset by absent date on that line if possible.
Here is my view:
def absent_detail(request, student_id):
"""Show student & attendance info"""
student = Student.objects.get(id=student_id)
header = student.zzheader_set.order_by('id')
attendance_days = student.zzabsentdetail_set.order_by('-absent_date')
context = {'student': student, 'header': header, 'attendance_days':
attendance_days}
return render(request, 'learning_logs/absent_detail_99.html', context)

Answer 1

You can do this with a __range lookup [Django-doc]:
attendance_days = student.zzabsentdetail_set.filter(
absent_date__range=('2021-02-01', '2021-02-26')
).order_by('-absent_date')
here the two bounds are inclusive, so items on February 1st, or February 26th will be included as well.
or you can work with the __gt lookup [Django-doc] to express that the value should be greater than a given value:
attendance_days = student.zzabsentdetail_set.filter(
absent_date__gt='2021-02-01'
).order_by('-absent_date')
for the last 10 days, you can work with a date object instead of a string, so:
from datetime import timedelta
from django.utils.timezone import now
from_dt = now().date()-timedelta(days=10)
attendance_days = student.zzabsentdetail_set.filter(
absent_date__gt=from_dt
).order_by('-absent_date')