workx_backend/representative/models.py

from django.contrib.auth.models import User
from django.db import models
from project.models import Project
from client.models import Client


class Representative(models.Model):
    user = models.ForeignKey(User)
    phone = models.CharField(max_length=15)
    role = models.CharField(max_length=15)
    projects = models.ManyToManyField(Project)
    clients = models.ManyToManyField(Client)

    def __str__(self):
        return self.user.name