spradio-server-django/savepointradio/radio/models.py

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from django.db import models
from django.utils.translation import ugettext_lazy as _
from core.behaviors import Timestampable
from .behaviors import Disableable, Publishable
from .managers import SongManager
class Album(Disableable, Publishable, Timestampable, models.Model):
"""
A model for a music album.
"""
title = models.CharField(_('title'), max_length=255, unique=True)
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sorted_title = models.CharField(_('naturalized title'),
db_index=True,
editable=False,
max_length=255)
class Meta:
ordering = ['sorted_title', ]
def __str__(self):
return self.title
class Artist(Disableable, Publishable, Timestampable, models.Model):
"""
A model for a music artist.
"""
alias = models.CharField(_('alias'), max_length=127, blank=True)
first_name = models.CharField(_('first name'), max_length=127, blank=True)
last_name = models.CharField(_('last name'), max_length=127, blank=True)
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sorted_full_name = models.CharField(_('naturalized full name'),
db_index=True,
editable=False,
max_length=255)
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class Meta:
ordering = ['sorted_full_name', ]
@property
def full_name(self):
if not self.alias:
return '{} {}'.format(self.first_name, self.last_name)
else:
if not self.first_name or not self.last_name:
return self.alias
else:
return '{} "{}" {}'.format(self.first_name,
self.alias,
self.last_name)
def __str__(self):
return self.full_name
class Game(Disableable, Publishable, Timestampable, models.Model):
"""
A model for a game.
"""
title = models.CharField(_('title'), max_length=255, unique=True)
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sorted_title = models.CharField(_('naturalized title'),
db_index=True,
editable=False,
max_length=255)
class Meta:
ordering = ['sorted_title', ]
def __str__(self):
return self.title
class Song(Disableable, Publishable, Timestampable, models.Model):
"""
A model for a song.
"""
JINGLE = 'J'
SONG = 'S'
TYPE_CHOICES = (
(JINGLE, 'Jingle'),
(SONG, 'Song'),
)
album = models.ForeignKey(Album,
on_delete=models.SET_NULL,
null=True,
blank=True)
artists = models.ManyToManyField(Artist)
game = models.ForeignKey(Game,
on_delete=models.SET_NULL,
null=True,
blank=True)
song_type = models.CharField(_('song type'),
max_length=1,
choices=TYPE_CHOICES,
default=SONG)
title = models.CharField(_('title'), max_length=255)
num_played = models.PositiveIntegerField(_('number of times played'),
default=0)
last_played = models.DateTimeField(_('was last played'),
null=True,
blank=True,
editable=False)
length = models.DecimalField(_('song length (in seconds)'),
max_digits=8,
decimal_places=2,
null=True,
blank=True)
path = models.TextField(_('absolute path to song file'))
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sorted_title = models.CharField(_('naturalized title'),
db_index=True,
editable=False,
max_length=255)
objects = models.Manager()
music = SongManager()
class Meta:
ordering = ['sorted_title', ]
@property
def full_title(self):
if self.song_type == 'J':
return self.title
else:
all_artists = ', '.join([a.full_name for a in self.artists.all()])
return '{} - {} ({})'.format(self.game.title,
self.title,
all_artists)
def __str__(self):
return self.title