from django.contrib.auth import get_user_model
from django.db import models


class TimeStampedModel(models.Model):
    created = models.DateTimeField(auto_now_add=True)
    modified = models.DateTimeField(auto_now=True)

    class Meta:
        abstract = True


class CreatedModifiedBy(models.Model):
    created_by = models.ForeignKey(
        get_user_model(),
        null=True,
        blank=True,
        on_delete=models.CASCADE,
        related_name="%(class)s_created_by",
    )
    modified_by = models.ForeignKey(
        get_user_model(),
        null=True,
        blank=True,
        on_delete=models.CASCADE,
        related_name="%(class)s_modified_by",
    )

    class Meta:
        abstract = True