from django.contrib.postgres.fields import DateTimeRangeField from django.db import models from django.utils.text import slugify from django.conf import settings from django.utils.translation import ugettext_lazy as _ from utils.models import CreatedUpdatedModel, CampRelatedModel from django.core.exceptions import ValidationError from datetime import timedelta from django.core.urlresolvers import reverse_lazy class UserSubmittedModel(CampRelatedModel): class Meta: abstract = True SUBMISSION_DRAFT = 'draft' SUBMISSION_PENDING = 'pending' SUBMISSION_APPROVED = 'approved' SUBMISSION_REJECTED = 'rejected' SUBMISSION_STATUSES = [ SUBMISSION_DRAFT, SUBMISSION_PENDING, SUBMISSION_APPROVED, SUBMISSION_REJECTED ] SUBMISSION_STATUS_CHOICES = [ (SUBMISSION_DRAFT, 'Draft'), (SUBMISSION_PENDING, 'Pending approval'), (SUBMISSION_APPROVED, 'Approved'), (SUBMISSION_REJECTED, 'Rejected'), ] submission_status = models.CharField( max_length=50, choices=SUBMISSION_STATUS_CHOICES, default=SUBMISSION_DRAFT, ) class EventLocation(CampRelatedModel): """ The places where stuff happens """ name = models.CharField(max_length=100) slug = models.SlugField() icon = models.CharField(max_length=100) camp = models.ForeignKey('camps.Camp', null=True, related_name="eventlocations") def __str__(self): return self.name class Meta: unique_together = (('camp', 'slug'), ('camp', 'name')) class EventType(CreatedUpdatedModel): """ Every event needs to have a type. """ name = models.CharField(max_length=100, unique=True) slug = models.SlugField() color = models.CharField(max_length=50) light_text = models.BooleanField(default=False) notifications = models.BooleanField(default=False) def __str__(self): return self.name class Event(UserSubmittedModel): """ Something that is on the program one or more times. """ title = models.CharField(max_length=255) slug = models.SlugField(blank=True, max_length=255) abstract = models.TextField() event_type = models.ForeignKey(EventType) camp = models.ForeignKey('camps.Camp', null=True, related_name="events") video_url = models.URLField( max_length=1000, null=True, blank=True, help_text=_('URL to the recording.') ) video_recording = models.BooleanField( default=True, help_text=_('Whether the event will be video recorded or not.') ) class Meta: ordering = ['title'] unique_together = (('camp', 'slug'), ('camp', 'title')) def __str__(self): return '%s (%s)' % (self.title, self.camp.title) def save(self, **kwargs): if not self.slug: self.slug = slugify(self.title) super(Event, self).save(**kwargs) @property def speakers_list(self): if self.speakers.exists(): return ", ".join(self.speakers.all().values_list('name', flat=True)) return False def get_absolute_url(self): return reverse_lazy('event_detail', kwargs={'camp_slug': self.camp.slug, 'slug': self.slug}) class EventInstance(CampRelatedModel): """ An instance of an event """ event = models.ForeignKey('program.event', related_name='instances') when = DateTimeRangeField() notifications_sent = models.BooleanField(default=False) location = models.ForeignKey('program.EventLocation', related_name='eventinstances') class Meta: ordering = ['when'] def __str__(self): return '%s (%s)' % (self.event, self.when) def __clean__(self): errors = [] if self.location.camp != self.event.camp: errors.append(ValidationError({'location', "Error: This location belongs to a different camp"})) if errors: raise ValidationError(errors) @property def camp(self): return self.event.camp @property def schedule_date(self): """ Returns the schedule date of this eventinstance. Schedule date is determined by substracting settings.SCHEDULE_MIDNIGHT_OFFSET_HOURS from the eventinstance start time. This means that if an event is scheduled for 00:30 wednesday evening (technically thursday) then the date after substracting 5 hours would be wednesdays date, not thursdays (given settings.SCHEDULE_MIDNIGHT_OFFSET_HOURS=5) """ return (self.when.lower-timedelta(hours=settings.SCHEDULE_MIDNIGHT_OFFSET_HOURS)).date() @property def timeslots(self): """ Find the number of timeslots this eventinstance takes up """ seconds = (self.when.upper-self.when.lower).seconds minutes = seconds / 60 return minutes / settings.SCHEDULE_TIMESLOT_LENGTH_MINUTES def get_speaker_picture_upload_path(instance, filename): """ We want speaker pictures are saved as MEDIA_ROOT/public/speakers/camp-slug/speaker-slug/filename """ return 'public/speakers/%(campslug)s/%(speakerslug)s/%(filename)s' % { 'campslug': instance.camp.slug, 'speakerslug': instance.slug, 'filename': filename } class Speaker(UserSubmittedModel): """ A Person anchoring an event. """ name = models.CharField(max_length=150) biography = models.TextField() picture_small = models.ImageField(null=True, blank=True, upload_to=get_speaker_picture_upload_path) picture_large = models.ImageField(null=True, blank=True, upload_to=get_speaker_picture_upload_path) slug = models.SlugField(blank=True, max_length=255) camp = models.ForeignKey('camps.Camp', null=True, related_name="speakers") events = models.ManyToManyField( Event, blank=True, ) user = models.ForeignKey( 'auth.User', on_delete=models.PROTECT, null=True, blank=True ) class Meta: ordering = ['name'] unique_together = (('camp', 'name'), ('camp', 'slug'), ('camp', 'user')) def __str__(self): return '%s (%s)' % (self.name, self.camp) def save(self, **kwargs): if not self.slug: self.slug = slugify(self.name) super(Speaker, self).save(**kwargs) def get_absolute_url(self): return reverse_lazy('speaker_detail', kwargs={'camp_slug': self.camp.slug, 'slug': self.slug})