Untitled

from email.policy import default

from django.core.validators import MinLengthValidator, MaxLengthValidator, MinValueValidator
from django.db import models

# Create your models here.
class DateTime(models.Model):
    class Meta:
        abstract = True

    created_at = models.DateTimeField(
        auto_now_add=True,
    )

class Label(DateTime):
    name = models.CharField(
        max_length=140,
        validators=[MinLengthValidator(2)]
    )

    headquarters = models.CharField(
        max_length=150,
        default = 'Not specified',
    )

    market_share = models.FloatField(
        validators=[MinLengthValidator(0.0), MinLengthValidator(100.0)],
        default=0.1
    )

class Artist(DateTime):
    name = models.CharField(
        max_length=100,
        validators=[MinLengthValidator(2)]
    )

    nationality = models.CharField(
        max_length=140,
        validators=[MinLengthValidator(2)]
    )

    awards = models.PositiveIntegerField()

class Album(DateTime):
    title = models.CharField(
        max_length=150,
        validators=[MinValueValidator(1)]
    )
    release_date = models.DateField(null=True, blank=True)
    description = models.TextField(null=True, blank=True)
    TYPE_CHOICES = [
        ('Single', 'Single'),
        ('Soundtrack', 'Soundtrack'),
        ('Remix', 'Remix'),
        ('Other', 'Other'),
    ]
    type = models.CharField(
        max_length=10,
        choices=TYPE_CHOICES,
        default='Other'
    )
    is_hit = models.BooleanField(default=False)
    label = models.ForeignKey(
        Label,
        on_delete=models.SET_NULL,
        null=True,
        blank=True,
        related_name='albums'
    )
    artist = models.ManyToManyField(Artist, related_name='albums')