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from django.contrib.auth.models import User
from django.core.exceptions import ObjectDoesNotExist, ValidationError
from django.db import models
from django.utils.translation import ugettext_lazy as _
from datetime import date, datetime, time, timedelta
from dateutil.relativedelta import relativedelta
from dateutil.rrule import rrule
class BroadcastFormat(models.Model):
format = models.CharField(_("Format"), max_length=32)
slug = models.SlugField(_("Slug"), max_length=32, unique=True)
class Meta:
ordering = ('format',)
verbose_name = _("Broadcast format")
verbose_name_plural = _("Broadcast formats")
def __unicode__(self):
return u'%s' % self.format
class ShowInformation(models.Model):
information = models.CharField(_("Information"), max_length=32)
abbrev = models.CharField(_("Abbreviation"), max_length=4, unique=True)
slug = models.SlugField(_("Slug"), max_length=32, unique=True)
class Meta:
ordering = ('information',)
verbose_name = _("Show information")
verbose_name_plural = _("Show information")
def __unicode__(self):
return u'%s' % self.information
class ShowTopic(models.Model):
topic = models.CharField(_("Show topic"), max_length=32)
abbrev = models.CharField(_("Abbreviation"), max_length=4, unique=True)
slug = models.SlugField(_("Slug"), max_length=32, unique=True)
class Meta:
ordering = ('topic',)
verbose_name = _("Show topic")
verbose_name_plural = _("Show topics")
def __unicode__(self):
return u'%s' % self.topic
class MusicFocus(models.Model):
focus = models.CharField(_("Focus"), max_length=32)
abbrev = models.CharField(_("Abbreviation"), max_length=4, unique=True)
slug = models.SlugField(_("Slug"), max_length=32, unique=True)
class Meta:
ordering = ('focus',)
verbose_name = _("Music focus")
verbose_name_plural = _("Music focus")
def __unicode__(self):
return u'%s' % self.focus
class Host(models.Model):
name = models.CharField(_("Name"), max_length=128)
email = models.EmailField(_("E-Mail"), blank=True)
website = models.URLField(_("Website"), blank=True)
class Meta:
ordering = ('name',)
verbose_name = _("Host")
verbose_name_plural = _("Hosts")
def __unicode__(self):
return u'%s' % self.name
@models.permalink
def get_absolute_url(self):
return ('host-detail', [str(self.id)])
class Show(models.Model):
predecessor = models.ForeignKey('self', blank=True, null=True, related_name='successors', verbose_name=_("Predecessor"))
hosts = models.ManyToManyField(Host, blank=True, null=True, related_name='shows', verbose_name=_("Hosts"))
owners = models.ManyToManyField(User, blank=True, null=True, related_name='shows', verbose_name=_("Owners"))
broadcastformat = models.ForeignKey(BroadcastFormat, related_name='shows', verbose_name=_("Broadcast format"))
showinformation = models.ManyToManyField(ShowInformation, blank=True, null=True, related_name='shows', verbose_name=_("Show information"))
showtopic = models.ManyToManyField(ShowTopic, blank=True, null=True, related_name='shows', verbose_name=_("Show topic"))
musicfocus = models.ManyToManyField(MusicFocus, blank=True, null=True, related_name='shows', verbose_name=_("Music focus"))
name = models.CharField(_("Name"), max_length=256)
slug = models.CharField(_("Slug"), max_length=255, unique=True)
image = models.ImageField(_("Image"), blank=True, null=True, upload_to='show_images')
short_description = models.CharField(_("Short description"), max_length=64)
description = models.TextField(_("Description"))
email = models.EmailField(_("E-Mail"), blank=True, null=True)
website = models.URLField(_("Website"), blank=True, null=True)
cba_series_id = models.IntegerField(_("CBA series ID"), blank=True, null=True)
created = models.DateTimeField(auto_now_add=True, editable=False)
last_updated = models.DateTimeField(auto_now=True, editable=False)
class Meta:
ordering = ('slug',)
verbose_name = _("Show")
verbose_name_plural = _("Shows")
def __unicode__(self):
return u'%s' % self.name
@models.permalink
def get_absolute_url(self):
return ('show-detail', [self.slug])
def has_active_programslots(self):
return self.programslots.filter(until__gt=date.today()).count() > 0
has_active_programslots.boolean = True
has_active_programslots.short_description = _("Has active program slots")
class RRule(models.Model):
FREQ_CHOICES = (
(1, _("Monthly")),
(2, _("Weekly")),
(3, _("Daily")),
)
BYSETPOS_CHOICES = (
(1, _("First")),
(2, _("Second")),
(3, _("Third")),
(4, _("Fourth")),
(5, _("Fifth")),
(-1, _("Last")),
)
name = models.CharField(_("Name"), max_length=32, unique=True)
freq = models.IntegerField(_("Frequency"), choices=FREQ_CHOICES)
interval = models.IntegerField(_("Interval"), default=1)
bysetpos = models.IntegerField(_("Set position"), blank=True, choices=BYSETPOS_CHOICES, null=True)
count = models.IntegerField(_("Count"), blank=True, null=True)
class Meta:
ordering = ('-freq', 'interval', 'bysetpos')
verbose_name = _("Recurrence rule")
verbose_name_plural = _("Recurrence rules")
def __unicode__(self):
return u'%s' % self.name
class ProgramSlot(models.Model):
BYWEEKDAY_CHOICES = (
(0, _("Monday")),
(1, _("Tuesday")),
(2, _("Wednesday")),
(3, _("Thursday")),
(4, _("Friday")),
(5, _("Saturday")),
(6, _("Sunday")),
)
rrule = models.ForeignKey(RRule, related_name='programslots', verbose_name=_("Recurrence rule"))
byweekday = models.IntegerField(_("Weekday"), choices=BYWEEKDAY_CHOICES)
show = models.ForeignKey(Show, related_name='programslots', verbose_name=_("Show"))
dstart = models.DateField(_("First date"))
tstart = models.TimeField(_("Start time"))
tend = models.TimeField(_("End time"))
until = models.DateField(_("Last date"))
is_repetition = models.BooleanField(_("Is repetition"), default=False)
created = models.DateTimeField(auto_now_add=True, editable=False)
last_updated = models.DateTimeField(auto_now=True, editable=False)
class Meta:
ordering = ('dstart', 'tstart')
unique_together = ('rrule', 'byweekday', 'dstart', 'tstart')
verbose_name = _("Program slot")
verbose_name_plural = _("Program slots")
def __unicode__(self):
weekday = self.BYWEEKDAY_CHOICES[self.byweekday][1]
tend = self.tend.strftime('%H:%M')
dstart = self.dstart.strftime('%d. %b %Y')
tstart = self.tstart.strftime('%H:%M')
if self.rrule.freq == 0:
return u'%s, %s - %s' % (dstart, tstart, tend)
if self.rrule.freq == 3:
return u'%s, %s - %s' % (self.rrule, tstart, tend)
else:
return u'%s, %s, %s - %s' % (weekday, self.rrule, tstart, tend)
def save(self, *args, **kwargs):
if not self.pk:
super(ProgramSlot, self).save(*args, **kwargs)
if self.rrule.freq == 0:
byweekday_start = None
byweekday_end = None
elif self.rrule.freq == 3:
byweekday_start = (0, 1, 2, 3, 4, 5, 6)
byweekday_end = (0, 1, 2, 3, 4, 5, 6)
else:
byweekday_start = self.byweekday
if self.tend < self.tstart:
byweekday_end = self.byweekday + 1 if self.byweekday < 6 else 0
else:
byweekday_end = self.byweekday
starts = list(rrule(freq=self.rrule.freq,
dtstart=datetime.combine(self.dstart, self.tstart),
interval=self.rrule.interval,
until=self.until+relativedelta(days=+1),
bysetpos=self.rrule.bysetpos,
byweekday=byweekday_start))
ends = list(rrule(freq=self.rrule.freq,
dtstart=datetime.combine(self.dstart, self.tend),
interval=self.rrule.interval,
until=self.until+relativedelta(days=+1),
bysetpos=self.rrule.bysetpos,
byweekday=byweekday_end))
for k in range(len(starts)):
timeslot = TimeSlot(programslot=self, start=starts[k], end=ends[k])
timeslot.save()
def timeslot_count(self):
return self.timeslots.count()
timeslot_count.description = _("Time slot count")
class TimeSlotManager(models.Manager):
def get_or_create_current(self):
try:
return TimeSlot.objects.get(start__lte=datetime.now(), end__gt=datetime.now())
except ObjectDoesNotExist:
once = RRule.objects.get(pk=1)
today = date.today().weekday()
default = Show.objects.get(pk=1)
previous = TimeSlot.objects.filter(end__lte=datetime.now()).order_by('-start')[0]
next = TimeSlot.objects.filter(start__gte=datetime.now())[0]
dstart, tstart = previous.end.date(), previous.end.time()
until, tend = next.start.date(), next.start.time()
new_programslot = ProgramSlot(rrule=once, byweekday=today, show=default, dstart=dstart, tstart=tstart, tend=tend, until=until)
try:
new_programslot.validate_unique()
new_programslot.save()
except ValidationError:
pass
return new_programslot.timeslots.all()[0]
def get_day_timeslots(self, day):
today = datetime.combine(day, time(6,0))
tomorrow = today + timedelta(days=1)
return TimeSlot.objects.filter(start__range=(today, tomorrow))
class TimeSlot(models.Model):
programslot = models.ForeignKey(ProgramSlot, related_name='timeslots', verbose_name=_("Program slot"))
start = models.DateTimeField(_("Start time"), unique=True)
end = models.DateTimeField(_("End time"))
show = models.ForeignKey(Show, editable=False)
objects = TimeSlotManager()
class Meta:
ordering = ('start', 'end')
verbose_name = _("Time slot")
verbose_name_plural = _("Time slots")
def __unicode__(self):
start = self.start.strftime('%d. %b %Y %H:%M')
end = self.end.strftime('%H:%M')
return u'%s: %s - %s' % (self.show, start, end)
def save(self, *args, **kwargs):
self.show = self.programslot.show
super(TimeSlot, self).save(*args, **kwargs)
@models.permalink
def get_absolute_url(self):
return ('timeslot-detail', [self.id])
class Note(models.Model):
STATUS_CHOICES = (
(0, _("Cancellation")),
(1, _("Recommendation")),
(2, _("Repetition")),
)
timeslot = models.OneToOneField(TimeSlot, verbose_name=_("Time slot"))
owner = models.ForeignKey(User, related_name='notes', verbose_name=_("Owner"))
title = models.CharField(_("Title"), max_length=128)
content = models.TextField(_("Content"))
status = models.IntegerField(_("Status"), choices=STATUS_CHOICES, default=1)
cba_entry_id = models.IntegerField(_("CBA entry ID"), blank=True, null=True)
start = models.DateTimeField(editable=False)
show = models.ForeignKey(Show, editable=False)
created = models.DateTimeField(auto_now_add=True, editable=False)
last_updated = models.DateTimeField(auto_now=True, editable=False)
class Meta:
ordering = ('timeslot',)
verbose_name = _("Note")
verbose_name_plural = _("Notes")
def __unicode__(self):
return u'%s - %s' % (self.title, self.timeslot)
def save(self, *args, **kwargs):
self.start = self.timeslot.start
self.show = self.timeslot.programslot.show
super(Note, self).save(*args, **kwargs)
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