118 lines
3.9 KiB
Python
118 lines
3.9 KiB
Python
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from django.contrib.postgres.fields import DateTimeRangeField
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from django.db import models
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from django.utils.text import slugify
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from django.conf import settings
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from utils.models import CreatedUpdatedModel
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from django.core.exceptions import ValidationError
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from datetime import timedelta
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class EventType(CreatedUpdatedModel):
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""" Every event needs to have a type. """
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name = models.CharField(max_length=100, unique=True)
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slug = models.SlugField()
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color = models.CharField(max_length=50)
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light_text = models.BooleanField(default=False)
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def __unicode__(self):
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return self.name
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class Event(CreatedUpdatedModel):
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""" Something that is on the program one or more times. """
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title = models.CharField(max_length=255)
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slug = models.SlugField(blank=True, max_length=255)
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abstract = models.TextField()
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event_type = models.ForeignKey(EventType)
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camp = models.ForeignKey('camps.Camp', null=True, related_name="events")
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class Meta:
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ordering = ['title']
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unique_together = (('camp', 'slug'), ('camp', 'title'))
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def __unicode__(self):
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return '%s (%s)' % (self.title, self.camp.title)
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def save(self, **kwargs):
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if not self.slug:
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self.slug = slugify(self.title)
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super(Event, self).save(**kwargs)
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@property
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def speakers_list(self):
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if self.speakers.exists():
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return ", ".join(self.speakers.all().values_list('name', flat=True))
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return False
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class EventInstance(CreatedUpdatedModel):
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""" An instance of an event """
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event = models.ForeignKey('program.event', related_name='instances')
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when = DateTimeRangeField()
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class Meta:
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ordering = ['when']
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def __unicode__(self):
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return '%s (%s)' % (self.event, self.when)
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def __clean__(self):
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errors = []
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if self.when.lower > self.when.upper:
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errors.append(ValidationError({'when', "Start should be earlier than finish"}))
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if self.when.lower.time().minute != 0 and self.when.lower.time().minute != 30:
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errors.append(ValidationError({'when', "Start time minute should be 0 or 30."}))
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if self.when.upper.time().minute != 0 and self.when.upper.time().minute != 30:
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errors.append(ValidationError({'when', "End time minute should be 0 or 30."}))
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if errors:
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raise ValidationError(errors)
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@property
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def schedule_date(self):
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"""
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Returns the schedule date of this eventinstance. Schedule date is determined by substracting
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settings.SCHEDULE_MIDNIGHT_OFFSET_HOURS from the eventinstance start time. This means that if
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an event is scheduled for 00:30 wednesday evening (technically thursday) then the date
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after substracting 5 hours would be wednesdays date, not thursdays.
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"""
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return (self.when.lower-timedelta(hours=settings.SCHEDULE_MIDNIGHT_OFFSET_HOURS)).date()
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@property
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def timeslots(self):
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"""
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Find the number of timeslots this eventinstance takes up
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"""
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seconds = (self.when.upper-self.when.lower).seconds
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minutes = seconds / 60
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return minutes / settings.SCHEDULE_TIMESLOT_LENGTH_MINUTES
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class Speaker(CreatedUpdatedModel):
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""" A Person anchoring an event. """
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name = models.CharField(max_length=150)
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biography = models.TextField()
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picture = models.ImageField(null=True, blank=True)
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slug = models.SlugField(blank=True, max_length=255)
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camp = models.ForeignKey('camps.Camp', null=True, related_name="speakers")
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events = models.ManyToManyField(
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Event,
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blank=True,
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)
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class Meta:
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ordering = ['name']
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unique_together = (('camp', 'name'), ('camp', 'slug'))
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def __unicode__(self):
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return '%s (%s)' % (self.name, self.camp)
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def save(self, **kwargs):
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if not self.slug:
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self.slug = slugify(self.name)
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super(Speaker, self).save(**kwargs)
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