dealing with 3 different user + admin user in django? -

i getting django , using drf build restful api have 4 different users admin , has access admin panel brokers can on site cannot access admin panel buyers can 2 action buy , search man in middle can except 1 thing way doing right have baseclass shared fields between users

class siteuser(models.model):        name = models.charfield(     max_length=255, null=false, blank=false, db_index=true)     email = models.emailfield(max_length=254, unique=true)     address = models.charfield(max_length=255, null=false, blank=false)     city = models.charfield(max_length=254, null=false, blank=false)     active = models.booleanfield(default=1)     = models.textfield()      class meta:         abstract = true 

and have 3 other models different fields , onetoone relation user model

class manger(siteuser):     manger = models.onetoonefield(settings.auth_user_model)     manager_licsences_number = models.integerfield()  class buyer(siteuser):    buyer = models.onetoonefield(settings.auth_user_model)  class seller(siteuser):    seller = models.onetoonefield(settings.auth_user_model)    trust_number = models.integerfield() 

but feel method wrong had ideas in head

1- i've been looking creating own abstract base class user model , using model user model , using admin panel admin user .

2- abstracting user model 3 times , making 3 user objects , building custom oath 3 different users think not approach

so guys think best way handle ?

if user classes have special field, maybe approach not bad.but can try approach using sort of field, can store data related special fields. example:

class siteuser(models.model):     broker = models.onetoonefield(settings.auth_user_model)     name = models.charfield(max_length = 255, null = false, blank = false, db_index = true)     email = models.emailfield(max_length = 254, unique = true)     address = models.charfield(max_length = 255, null = false, blank = false)     city = models.charfield(max_length = 254, null = false, blank = false)     active = models.booleanfield(default = 1)     = models.textfield()     extra_field = models.charfield(max_length=255, null=true)  #for special data  class manager(siteuser):     class meta:        proxy = true      @property     def manager_licsences_number(self):          return self.extra_field      @manager_licsences_number.setter     def manager_licsences_number(self, value):         self.extra_field = value     ... 

thus, need not create multiple tables manager, buyer, seller. , saving mechanisom simple: myapp.models import manager

 m = manager()  m.manager_licsences_number = '1-22-33-4'  ..  m.save()  print(m.manager_licsences_number)