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from django.db import models GENRE= ( (-1, "not defined"), (0, "rock"), (1, "metal"), (2, "pop"), (3, "hip-hop"), (4, "electronic"), (5, "reggae"), (6, "other"), ) class Category(models.Model): name = models.CharField(max_length=64) description = models.TextField(null=True) ARTICLE_STATUSES = ( (0, "in progress"), (1, "waiting for approval"), (2, "published"), ) class Article(models.Model): title = models.CharField(max_length=128) author = models.CharField(max_length=64, null=True) content = models.TextField() date_added = models.DateTimeField(auto_now_add=True) status = models.IntegerField(choices=ARTICLE_STATUSES) published_date_start = models.DateTimeField(null=True) published_date_end = models.DateTimeField(null=True) ALBUM_RATE = ( (0, "0"), (1, "1"), (2, "2"), (3, "3"), (4, "4"), (5, "5"), ) class Band(models.Model): name = models.CharField(max_length=64) year = models.IntegerField(null=True) still_active = models.BooleanField(default=True) genre = models.IntegerField(choices=GENRE, default=-1) class Album(models.Model): title = models.CharField(max_length=128) year = models.IntegerField() rate = models.IntegerField(choices=ALBUM_RATE) band = models.ForeignKey(Band, on_delete=models.CASCADE, null=True)