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1 """Models for the messages application."""
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2
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3 import datetime
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4 from django.db import models
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5 from django.db.models import Q
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6 from django.contrib.auth.models import User
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7 from django.template.loader import render_to_string
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8
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9
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10 class MessageManager(models.Manager):
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11 """The manager for the Message model. Provides convenience functions."""
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12
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13 def inbox(self, user):
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14 return self.filter(receiver=user,
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15 receiver_delete_date__isnull=True)
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16
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17 def outbox(self, user):
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18 return self.filter(sender=user,
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19 sender_delete_date__isnull=True)
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20
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21 def trash(self, user):
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22 return self.filter(
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23 Q(sender=user, sender_delete_date__isnull=False) |
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24 Q(receiver=user, receiver_delete_date__isnull=False)
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25 )
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26
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27 def unread_count(self, user):
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28 return self.filter(receiver=user, read_date__isnull=True).count()
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29
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30
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31 class Message(models.Model):
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32 """The Message is a model for a private message between users."""
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33 sender = models.ForeignKey(User, related_name='sender')
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34 receiver = models.ForeignKey(User, related_name='receiver')
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35 send_date = models.DateTimeField('Date Sent', null=True, blank=True)
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36 read_date = models.DateTimeField('Date Received', null=True, blank=True)
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37 reply_date = models.DateTimeField('Date Replied', null=True, blank=True)
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38 subject = models.CharField(max_length=120)
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39 message = models.TextField()
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40 html = models.TextField()
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41 sender_delete_date = models.DateTimeField(null=True, blank=True)
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42 receiver_delete_date = models.DateTimeField(null=True, blank=True)
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43 signature_attached = models.BooleanField(default=False)
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44
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45 objects = MessageManager()
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46
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47 def unread(self):
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48 """returns True if the message has not been read yet"""
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49 return self.read_date is None
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50
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51 def replied_to(self):
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52 """returns True if the message has been replied to"""
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53 return self.reply_date is not None
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54
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55 def is_deleted(self, user):
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56 """returns True if the message has been deleted by the user"""
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57 if (user == self.sender and self.sender_delete_date is not None) or (
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58 user == self.receiver and self.receiver_delete_date is not None):
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59 return True
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60 return False
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61
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62 def save(self, force_insert = False, force_update = False):
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63 if not self.id:
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64 self.send_date = datetime.datetime.now()
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65 html = render_to_string('messages/markdown.html', {'data': self.message})
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66 self.html = html.strip()
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67 super(Message, self).save(force_insert, force_update)
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68
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69 @models.permalink
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70 def get_absolute_url(self):
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71 return ('messages.views.view', [str(self.id)])
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72
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73 def __unicode__(self):
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74 return self.subject
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75
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76 class Meta:
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77 ordering = ('-send_date', )
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78
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79
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80 class OptionsManager(models.Manager):
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81 """Manager class for Options model."""
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82
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83 def for_user(self, user):
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84 try:
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85 opts = self.get(user=user)
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86 except Options.DoesNotExist:
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87 opts = Options(user=user)
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88 opts.save()
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89 return opts
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90
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91
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92 class Options(models.Model):
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93 """Options is a model for user private message options."""
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94 user = models.ForeignKey(User, editable=False)
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95 attach_signature = models.BooleanField("Always attach signature?", default=True)
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96 notify_email = models.BooleanField("Notify me of new messages via email?", default=False)
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97
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98 objects = OptionsManager()
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99
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100 def __unicode__(self):
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101 return self.user.username
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102
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103
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104 # vim: ts=4 sw=4
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