How to use django-filter package for foreign key fields in Django?

Question

Hi all!

New in Django, and confused, help is appreciated! I've created a table, , thanks to a stackoverflow users, like:

Organization	Total amount of appeals	Amount of written form appeals	Amount of oral form appeals
Organization 1	3	1	2
Organization 2	2	1	1

Have three models:

class Organization(models.Model):
    organization_name = models.CharField(max_length=50)


class AppealForm(models.Model):
    form_name = models.CharField(max_length=50)


class Appeal(models.Model):
    organization = models.ForeignKey(Organization, on_delete=models.CASCADE)
    appeal_form = models.ForeignKey(AppealForm, on_delete=models.CASCADE)
    applicant_name = models.CharField(max_length=150)
    appeal_date = models.DateField()

Objects of Organization model:

organization_name
Organization 1
Organization 2

Objects of AppealForm model:

form_name
In written form
In oral form

Objects of Appeal model:

organization	appeal_form	applicant_name
Organization 1	In written form	First and Last name
Organization 1	In oral form	First and Last name
Organization 1	In oral form	First and Last name
Organization 2	In written form	First and Last name
Organization 2	In oral form	First and Last name

In the function of views.py file, I've created a query to render, like:

from django.db.models import Count, Q

organizations = Organization.objects.annotate(
).annotate(
    total=Count('appeal'),
    total_written=Count('appeal', filter=Q(appeal__appeal_form__form_name='in written form')),
    total_oral=Count('appeal', filter=Q('appeal__appeal_form__form_name='in oral form'))
)

And now I want to filter table contents by AppealForm model and date of appeals (appeal_date field of Appeal model). Case: User opens a table and from search bar above the table chooses which appeal form and/or the range of dates to see.

Question: How to filter the query which is above in views.py using django-filter package?