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116 lines
3.4 KiB
116 lines
3.4 KiB
from django.db import models
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from login.models import User
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# id's are 22 in length in examples but set to 30 for buffer
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MAX_ID = 30
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# Genre {{{ #
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class Genre(models.Model):
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class Meta:
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verbose_name = "Genre"
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verbose_name_plural = "Genres"
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name = models.CharField(primary_key=True, max_length=50)
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num_songs = models.PositiveIntegerField()
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def __str__(self):
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return self.name
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# }}} Genre #
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# Artist {{{ #
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class Artist(models.Model):
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class Meta:
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verbose_name = "Artist"
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verbose_name_plural = "Artists"
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id = models.CharField(primary_key=True, max_length=MAX_ID)
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name = models.CharField(max_length=50)
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genres = models.ManyToManyField(Genre, blank=True)
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# genre = models.ForeignKey(Genre, on_delete=models.CASCADE, blank=True,
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# null=True)
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def __str__(self):
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return self.name
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# }}} Artist #
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# Track {{{ #
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class Track(models.Model):
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class Meta:
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verbose_name = "Track"
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verbose_name_plural = "Tracks"
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id = models.CharField(primary_key=True, max_length=MAX_ID)
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artists = models.ManyToManyField(Artist, blank=True)
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year = models.PositiveSmallIntegerField(blank=True, null=True)
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popularity = models.PositiveSmallIntegerField()
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runtime = models.PositiveSmallIntegerField()
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name = models.CharField(max_length=200)
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users = models.ManyToManyField(User, blank=True)
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genre = models.ForeignKey(Genre, on_delete=models.CASCADE, blank=True,
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null=True)
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def __str__(self):
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track_str = "{}, genre: {}, artists: [".format(self.name, self.genre)
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for artist in self.artists.all():
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track_str += "{}, ".format(artist.name)
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track_str += "]"
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return track_str
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# }}} Track #
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# AudioFeatures {{{ #
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class AudioFeatures(models.Model):
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class Meta:
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verbose_name = "AudioFeatures"
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verbose_name_plural = "AudioFeatures"
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track = models.OneToOneField(Track, on_delete=models.CASCADE, primary_key=True,)
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acousticness = models.DecimalField(decimal_places=3, max_digits=3)
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danceability = models.DecimalField(decimal_places=3, max_digits=3)
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energy = models.DecimalField(decimal_places=3, max_digits=3)
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instrumentalness = models.DecimalField(decimal_places=3, max_digits=3)
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loudness = models.DecimalField(decimal_places=3, max_digits=6)
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speechiness = models.DecimalField(decimal_places=3, max_digits=3)
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tempo = models.DecimalField(decimal_places=3, max_digits=6)
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valence = models.DecimalField(decimal_places=3, max_digits=3)
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def __str__(self):
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return super(AudioFeatures, self).__str__()
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# }}} AudioFeatures #
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# History {{{ #
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class History(models.Model):
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class Meta:
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verbose_name = "History"
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verbose_name_plural = "History"
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unique_together = (("user", "timestamp"),)
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id = models.AutoField(primary_key=True)
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user = models.ForeignKey(User, on_delete=models.CASCADE)
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timestamp = models.DateTimeField()
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track = models.ForeignKey(Track, on_delete=models.CASCADE)
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def __str__(self):
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return " - ".join((str(self.user), str(self.timestamp), str(self.track)))
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def get_artists(self):
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artist_names = [artist.name for artist in self.track.artists.all()]
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return ', '.join(artist_names)
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def get_iso_timestamp(self):
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return self.timestamp.isoformat()
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# }}} #
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