import datetime import os import uuid from django.core.urlresolvers import reverse from django.db import models from django.db.models import Q from django.utils.translation import ugettext_lazy as _ from django.contrib.auth.models import User import reversion from markitup.fields import MarkupField from model_utils.managers import InheritanceManager from symposion.conference.models import Section class ProposalSection(models.Model): """ configuration of proposal submissions for a specific Section. a section is available for proposals iff: * it is after start (if there is one) and * it is before end (if there is one) and * closed is NULL or False """ section = models.OneToOneField(Section) start = models.DateTimeField(null=True, blank=True) end = models.DateTimeField(null=True, blank=True) closed = models.NullBooleanField() published = models.NullBooleanField() @classmethod def available(cls): now = datetime.datetime.now() return cls._default_manager.filter( Q(start__lt=now) | Q(start=None), Q(end__gt=now) | Q(end=None), Q(closed=False) | Q(closed=None), ) def is_available(self): if self.closed: return False now = datetime.datetime.now() if self.start and self.start > now: return False if self.end and self.end < now: return False return True def __unicode__(self): return self.section.name class ProposalKind(models.Model): """ e.g. talk vs panel vs tutorial vs poster Note that if you have different deadlines, reviewers, etc. you'll want to distinguish the section as well as the kind. """ section = models.ForeignKey(Section, related_name="proposal_kinds") name = models.CharField(_("Name"), max_length=100) slug = models.SlugField() def __unicode__(self): return self.name class ProposalBase(models.Model): objects = InheritanceManager() kind = models.ForeignKey(ProposalKind) title = models.CharField(max_length=100) description = models.TextField( _("Brief Outline"), max_length=400, # @@@ need to enforce 400 in UI help_text="If your talk is accepted this will be made public and printed in the program. Should be one paragraph, maximum 400 characters." ) abstract = MarkupField( _("Detailed Abstract"), help_text=_("Detailed description and outline. Will be made public if your talk is accepted. Edit using Markdown.") ) additional_notes = MarkupField( blank=True, help_text=_("Anything else you'd like the program committee to know when making their selection: your past speaking experience, open source community experience, etc. Edit using Markdown.") ) submitted = models.DateTimeField( default=datetime.datetime.now, editable=False, ) speaker = models.ForeignKey("speakers.Speaker", related_name="proposals") additional_speakers = models.ManyToManyField("speakers.Speaker", through="AdditionalSpeaker", blank=True) cancelled = models.BooleanField(default=False) def can_edit(self): return True @property def section(self): return self.kind.section @property def speaker_email(self): return self.speaker.email @property def number(self): return str(self.pk).zfill(3) def speakers(self): yield self.speaker for speaker in self.additional_speakers.exclude(additionalspeaker__status=AdditionalSpeaker.SPEAKING_STATUS_DECLINED): yield speaker reversion.register(ProposalBase) class AdditionalSpeaker(models.Model): SPEAKING_STATUS_PENDING = 1 SPEAKING_STATUS_ACCEPTED = 2 SPEAKING_STATUS_DECLINED = 3 SPEAKING_STATUS = [ (SPEAKING_STATUS_PENDING, _("Pending")), (SPEAKING_STATUS_ACCEPTED, _("Accepted")), (SPEAKING_STATUS_DECLINED, _("Declined")), ] speaker = models.ForeignKey("speakers.Speaker") proposalbase = models.ForeignKey(ProposalBase) status = models.IntegerField(choices=SPEAKING_STATUS, default=SPEAKING_STATUS_PENDING) class Meta: db_table = "proposals_proposalbase_additional_speakers" unique_together = ("speaker", "proposalbase") def uuid_filename(instance, filename): ext = filename.split(".")[-1] filename = "%s.%s" % (uuid.uuid4(), ext) return os.path.join("document", filename) class SupportingDocument(models.Model): proposal = models.ForeignKey(ProposalBase, related_name="supporting_documents") uploaded_by = models.ForeignKey(User) created_at = models.DateTimeField(default=datetime.datetime.now) file = models.FileField(upload_to=uuid_filename) description = models.CharField(max_length=140) def download_url(self): return reverse("proposal_document_download", args=[self.pk, os.path.basename(self.file.name).lower()])