Django: accessing the model instance from within ModelAdmin?

Question

I\'ve got a model for Orders in a webshop application, with an auto-incrementing primary key and a foreign key to itself, since orders can be split into multiple orders, but

Answer 1

The above answer from Erwin Julius worked for me, except I found that the name "get_object" conflicts with a Django function so name the function "my_get_object".

class CompanyOccupationInline(admin.TabularInline):

    model = Occupation
    # max_num = 1
    extra = 0
    can_delete = False
    formset = RequiredInlineFormSet

    def formfield_for_dbfield(self, field, **kwargs):

        if field.name == 'unit':
            parent_company = self.my_get_object(kwargs['request'], Company)
            units = Unit.objects.filter(company=parent_company)
            return forms.ModelChoiceField(queryset=units)
        return super(CompanyOccupationInline, self).formfield_for_dbfield(field, **kwargs)

    def my_get_object(self, request, model):
        object_id = request.META['PATH_INFO'].strip('/').split('/')[-1]
        try:
            object_id = int(object_id)
        except ValueError:
            return None
        return model.objects.get(pk=object_id)

It told me not to "respond" to others' answers, but I'm not allowed to "reply" yet, and I have been looking for this for a while so hope this will be helpful to others. I am also not allowed to upvote yet or I totally would!