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1 """
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2 Models for the gcalendar application.
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3
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4 """
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5 from django.db import models
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6 from django.db.models import Q
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7 from django.contrib.auth.models import User
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8
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9 from core.markup import site_markup
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10 import forums.tools
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11
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12
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13 GIG_FORUM_SLUG = "gigs"
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14
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15 class PendingEventManager(models.Manager):
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16 """A manager for pending events."""
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17
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18 def get_queryset(self):
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19 """Returns a queryset of events that have been approved to update
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20 the Google calendar."""
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21 return super(PendingEventManager, self).get_queryset().filter(
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22 Q(status=Event.NEW_APRV) |
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23 Q(status=Event.EDIT_APRV) |
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24 Q(status=Event.DEL_APRV)
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25 )
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26
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27
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28 class Event(models.Model):
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29 """Model to represent calendar events."""
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30
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31 # Event status codes:
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32 (NEW, NEW_APRV, EDIT_REQ, EDIT_APRV, DEL_REQ, DEL_APRV, ON_CAL) = range(7)
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33
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34 STATUS_CHOICES = (
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35 (NEW, 'New'),
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36 (NEW_APRV, 'New Approved'),
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37 (EDIT_REQ, 'Edit Request'),
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38 (EDIT_APRV, 'Edit Approved'),
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39 (DEL_REQ, 'Delete Request'),
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40 (DEL_APRV, 'Delete Approved'),
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41 (ON_CAL, 'On Calendar'),
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42 )
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43
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44 user = models.ForeignKey(User)
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45 what = models.CharField(max_length=255)
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46 start_date = models.DateField()
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47 start_time = models.TimeField(null=True, blank=True)
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48 end_date = models.DateField()
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49 end_time = models.TimeField(null=True, blank=True)
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50 time_zone = models.CharField(max_length=64, blank=True)
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51 all_day = models.BooleanField(default=False)
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52 where = models.CharField(max_length=255, blank=True)
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53 description = models.TextField(blank=True)
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54 html = models.TextField(blank=True)
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55 date_submitted = models.DateTimeField(auto_now_add=True)
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56 google_id = models.CharField(max_length=255, blank=True)
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57 google_url = models.URLField(max_length=255, blank=True)
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58 status = models.SmallIntegerField(choices=STATUS_CHOICES, default=NEW,
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59 db_index=True)
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60 create_forum_thread = models.BooleanField(default=False)
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61
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62 objects = models.Manager()
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63 pending_events = PendingEventManager()
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64
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65 def __unicode__(self):
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66 return self.what
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67
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68 class Meta:
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69 ordering = ('-date_submitted', )
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70
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71 def save(self, *args, **kwargs):
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72 self.html = site_markup(self.description, relative_urls=False)
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73 super(Event, self).save(*args, **kwargs)
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74
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75 def is_approved(self):
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76 return self.status not in (self.NEW, self.EDIT_REQ, self.DEL_REQ)
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77 is_approved.boolean = True
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78
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79 def google_html(self):
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80 """Returns a HTML <a> tag to the event if it exits."""
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81 if self.google_url:
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82 return u'<a href="%s">On Google</a>' % self.google_url
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83 return u''
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84 google_html.allow_tags = True
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85 google_html.short_description = 'Google Link'
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86
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87 def notify_on_calendar(self):
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88 """
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89 This function should be called when the event has been added to the
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90 Google calendar for the first time. This gives us a chance to perform
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91 any first-time processing, like creating a forum thread.
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92 """
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93 if self.create_forum_thread:
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94 topic_name = '%s: %s' % (self.start_date.strftime('%m/%d/%Y'),
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95 self.what)
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96 post_body = "%s\n\n[Link to event on Google Calendar](%s)" % (
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97 self.description, self.google_url)
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98
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99 forums.tools.create_topic(
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100 forum_slug=GIG_FORUM_SLUG,
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101 user=self.user,
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102 topic_name=topic_name,
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103 post_body=post_body)
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104
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105 self.create_forum_thread = False
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106 self.save()
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