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# -*- coding: utf-8 -*-
#
# models of app 'schedule'
#
from django.db import models
from django.db.models.signals import pre_delete
from django.contrib.contenttypes import generic
from django.contrib.contenttypes.models import ContentType
from django.utils.translation import ugettext_lazy as _
from tools.storage import OverwriteStorage, file_cleanup
class Event(models.Model):
"""
model 'Event' to store event information
and arrange these events to make schedule
"""
title = models.CharField(_("Title"), max_length=100)
person = models.CharField(_("Person in charge"), max_length=50)
date = models.DateField(_("Date"))
time_start = models.TimeField(_("Start time"))
time_end = models.TimeField(_("End time"))
contents = models.TextField(_("Contents"), blank=True,
help_text=_("Markdown syntax supported"))
attachments = generic.GenericRelation('EventAttachment')
class Meta:
verbose_name = _("Event")
verbose_name_plural = _("Events")
ordering = ['date', 'time_start']
def __unicode__(self):
return u'Event: %(date)s %(time_start)s-%(time_end)s, %(person)s, %(title)s' % {
'date': self.date.isoformat(),
'time_start': self.time_start.strftime('%H:%M'),
'time_end': self.time_end.strftime('%H:%M'),
'person': self.person,
'title': self.title,
}
class EventAttachment(models.Model):
title = models.CharField(_("Title"), max_length=100)
description = models.TextField(_("Description"), blank=True)
attachment = models.FileField(upload_to='schedule/attachments',
verbose_name=_("Attachment"),
storage=OverwriteStorage())
content_type = models.ForeignKey(ContentType)
object_id = models.PositiveIntegerField()
content_object = generic.GenericForeignKey("content_type", "object_id")
class Meta:
verbose_name = _('Event attachment')
verbose_name_plural = _('Event attachments')
### connect to signal and sender
pre_delete.connect(file_cleanup, sender=EventAttachment)
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