I am developing a backend for a landing page type site, and during the development of the project I came across a lot of models

...the rest of the code
class FunctionalBlock(models.Model):
    title = models.CharField(max_length=255,blank=True, null=True)
    subtitle = models.CharField(max_length=255,blank=True, null=True)
    icon = models.ForeignKey(to='Image', on_delete=models.SET_NULL, blank=True, null=True,related_name='function_block_icon')
    image = models.ForeignKey(to='Image', on_delete=models.SET_NULL, blank=True, null=True,related_name='function_block_image')
    form = models.ForeignKey(to='FormNVA', on_delete=models.SET_NULL, blank=True, null=True,related_name='function_block')
    buttons = models.ManyToManyField(to='Buttons',blank=True, null=True)
    time = models.DateTimeField(blank=True, null=True)
    section = models.ForeignKey(to='Section', on_delete=models.CASCADE,related_name='function_block')
    text = models.TextField(blank=True, null=True)
class Section(models.Model):
    title = models.CharField(max_length=255, blank=True, null=True)
    subtitle = models.CharField(max_length=255, blank=True, null=True)
    background = models.ForeignKey(to='Image', on_delete=models.SET_NULL, blank=True, null=True,related_name='section')

# PAGE
class PageHome(models.Model):
    title = models.CharField(max_length=255)
    language = models.ForeignKey(to='Language', on_delete=models.SET_NULL, blank=True, null=True)
    head = models.OneToOneField(to='Head', on_delete=models.SET_NULL, blank=True, null=True)
    body = models.OneToOneField(to='Body', on_delete=models.SET_NULL, blank=True, null=True, related_name='page_home')

    objects = models.Manager()
    objects_lang = LanguageManager()

    def __str__(self):
        return f'{self.title}'

class PageServices(models.Model):
    title = models.CharField(max_length=255)
    language = models.ForeignKey(to='Language', on_delete=models.SET_NULL, blank=True, null=True)
    head = models.OneToOneField(to='Head', on_delete=models.SET_NULL, blank=True, null=True)
    body = models.OneToOneField(to='Body', on_delete=models.SET_NULL, blank=True, null=True, related_name='page_services')


    objects = models.Manager()
    objects_lang = LanguageManager()

class PageCareer(models.Model):
    title = models.CharField(max_length=255)
    language = models.ForeignKey(to='Language', on_delete=models.SET_NULL, blank=True, null=True)
    head = models.OneToOneField(to='Head', on_delete=models.SET_NULL, blank=True, null=True)
    body = models.OneToOneField(to='Body', on_delete=models.SET_NULL, blank=True, null=True, related_name='page_career')


    objects = models.Manager()
    objects_lang = LanguageManager()

# BODY

class Body(models.Model):


    class FieldSets(Enum):
        HOME =['services','options','become_part_of_us','cta_text','numbers','partners','questions']
        SERVICES = ['services']

    # Home
    services = models.ForeignKey(to='Section',on_delete=models.SET_NULL, blank=True, null=True, related_name='body_home_services')
    options = models.ForeignKey(to='Section',on_delete=models.SET_NULL, blank=True, null=True, related_name='body_home_options')
    become_part_of_us = models.ForeignKey(to='Section',on_delete=models.SET_NULL, blank=True, null=True, related_name='body_home_become_part_of_us')
    cta_text = models.ForeignKey(to='Section',on_delete=models.SET_NULL, blank=True, null=True, related_name='body_home_cta_text')
    numbers = models.ForeignKey(to='Section',on_delete=models.SET_NULL, blank=True, null=True, related_name='body_home_numbers')
    partners = models.ForeignKey(to='Section',on_delete=models.SET_NULL, blank=True, null=True, related_name='body_home_partners')
    questions = models.ForeignKey(to='Section',on_delete=models.SET_NULL, blank=True, null=True, related_name='body_home_questions')
    # Services
    news = models.ForeignKey(to='Section',on_delete=models.SET_NULL, blank=True, null=True, related_name='body_home_news')

as you can see I have a separate model for each page, similarly I had a separate Body Model for each page model and to have them reduce I have summarized the fields in one table namely body and here I am facing a problem which is when I create any page in admin panel I want to filter the fields specifically related to this page model when I click on add body in the admin panel and a popup appears

ADMIN PANEL

as a solution I looked at passing url params and using get_fieldsets to filter the fields but I couldn’t achieve what I wanted.

@admin.register(Body)
class BodyAdmin(admin.ModelAdmin):
    def get_fieldsets(self, request, obj):
        model = self.model
        related_model = self.opts.related_objects[0].related_model
        fieldsets = copy.deepcopy(super().get_fieldsets(request, obj))

        if related_model is PageHome:
             fieldsets[0][1]['fields'] = model.FieldSets.HOME.value
        if related_model is PageServices:
            fieldsets[0][1]['fields'] = model.FieldSets.SERVICES.value

        return fieldsets

Is my approach to creating a backend for the landing page correct and if so, is it possible to achieve field filtering in the body?
thanks in advance

I tried passing query params to solve this problem, I also looked for a dependency in BodyAdmin to the calling Page…Admin but these two options were unsuccessful