86 lines
3.1 KiB
Python
86 lines
3.1 KiB
Python
from django.db import models
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from .files import File
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class Schedule(models.Model):
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starts = models.DateTimeField()
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ends = models.DateTimeField()
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file = models.ForeignKey(File, models.DO_NOTHING, blank=True, null=True)
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stream = models.ForeignKey("Webstream", models.DO_NOTHING, blank=True, null=True)
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clip_length = models.DurationField(blank=True, null=True)
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fade_in = models.TimeField(blank=True, null=True)
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fade_out = models.TimeField(blank=True, null=True)
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cue_in = models.DurationField()
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cue_out = models.DurationField()
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media_item_played = models.BooleanField(blank=True, null=True)
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instance = models.ForeignKey("ShowInstance", models.DO_NOTHING)
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playout_status = models.SmallIntegerField()
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broadcasted = models.SmallIntegerField()
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position = models.IntegerField()
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def get_owner(self):
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return self.instance.get_owner()
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def get_cueout(self):
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"""
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Returns a scheduled item cueout that is based on the current show instance.
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Cueout of a specific item can potentially overrun the show that it is
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scheduled in. In that case, the cueout should be the end of the show.
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This prevents the next show having overlapping items playing.
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Cases:
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- When the schedule ends before the end of the show instance,
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return the stored cueout.
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- When the schedule starts before the end of the show instance
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and ends after the show instance ends,
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return timedelta between schedule starts and show instance ends.
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- When the schedule starts after the end of the show instance,
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return the stored cue_out even if the schedule WILL NOT BE PLAYED.
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"""
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if self.starts < self.instance.ends and self.instance.ends < self.ends:
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return self.instance.ends - self.starts
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return self.cue_out
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def get_ends(self):
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"""
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Returns a scheduled item ends that is based on the current show instance.
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End of a specific item can potentially overrun the show that it is
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scheduled in. In that case, the end should be the end of the show.
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This prevents the next show having overlapping items playing.
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Cases:
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- When the schedule ends before the end of the show instance,
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return the scheduled item ends.
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- When the schedule starts before the end of the show instance
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and ends after the show instance ends,
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return the show instance ends.
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- When the schedule starts after the end of the show instance,
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return the show instance ends.
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"""
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if self.instance.ends < self.ends:
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return self.instance.ends
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return self.ends
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@property
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def is_valid(self):
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"""
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A schedule item is valid if it starts before the end of the show instance
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it is in
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"""
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return self.starts < self.instance.ends
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class Meta:
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managed = False
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db_table = "cc_schedule"
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permissions = [
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("change_own_schedule", "Change the content on their shows"),
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("delete_own_schedule", "Delete the content on their shows"),
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]
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