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1 """
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2 This file contains the automatic admin site definitions for the gcalendar application.
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3
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4 """
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5 from django.conf import settings
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6 from django.conf.urls import patterns, url
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7 from django.contrib import admin
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8 from django.contrib import messages
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9 from django.contrib.sites.models import Site
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10 from django.core.urlresolvers import reverse
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11 from django.http import HttpResponseRedirect
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12 from django.shortcuts import render
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13
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14 from gcalendar.models import Event
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15 from gcalendar.calendar import Calendar, CalendarError
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16 from gcalendar import oauth
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17
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18 import bio.badges
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19
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20
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21 class EventAdmin(admin.ModelAdmin):
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22 list_display = ['what', 'user', 'start_date', 'where', 'date_submitted',
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23 'status', 'is_approved', 'google_html']
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24 list_filter = ['start_date', 'status']
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25 date_hierarchy = 'start_date'
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26 search_fields = ['what', 'where', 'description']
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27 raw_id_fields = ['user']
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28 exclude = ['html', 'google_id', 'google_url']
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29 save_on_top = True
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30 actions = ['approve_events']
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31
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32 pending_states = {
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33 Event.NEW: Event.NEW_APRV,
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34 Event.EDIT_REQ: Event.EDIT_APRV,
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35 Event.DEL_REQ: Event.DEL_APRV,
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36 }
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37
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38 def get_urls(self):
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39 urls = super(EventAdmin, self).get_urls()
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40 my_urls = patterns('',
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41 url(r'^google_sync/$',
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42 self.admin_site.admin_view(self.google_sync),
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43 name="gcalendar-google_sync"),
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44 url(r'^authorize/$',
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45 self.admin_site.admin_view(self.authorize),
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46 name="gcalendar-authorize"),
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47 url(r'^auth_return/$',
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48 self.admin_site.admin_view(self.auth_return),
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49 name="gcalendar-auth_return"),
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50 )
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51 return my_urls + urls
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52
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53 def approve_events(self, request, qs):
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54 """
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55 Ratchets the selected events forward to the approved state.
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56 Ignores events that aren't in the proper state.
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57 """
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58 count = 0
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59 for event in qs:
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60 if event.status in self.pending_states:
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61 event.status = self.pending_states[event.status]
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62 event.save()
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63 count += 1
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64
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65 if event.status == Event.NEW_APRV:
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66 bio.badges.award_badge(bio.badges.CALENDAR_PIN, event.user)
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67
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68 msg = "1 event was" if count == 1 else "%d events were" % count
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69 msg += " approved."
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70 self.message_user(request, msg)
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71
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72 approve_events.short_description = "Approve selected events"
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73
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74 def google_sync(self, request):
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75 """
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76 View to synchronize approved event changes with Google calendar.
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77
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78 """
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79 # Get pending events
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80 events = Event.pending_events.all()
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81
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82 # Check status of credentials file
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83 cred_status = oauth.check_credentials_status()
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84
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85 msgs = []
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86 err_msg = ''
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87 if request.method == 'POST':
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88 credentials = oauth.get_credentials()
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89 if credentials:
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90 try:
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91 cal = Calendar(calendar_id=settings.GCAL_CALENDAR_ID,
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92 credentials=credentials)
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93 cal.sync_events(events)
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94 except CalendarError, e:
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95 err_msg = str(e)
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96 events = Event.pending_events.all()
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97 else:
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98 msgs.append('All events processed successfully.')
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99 events = Event.objects.none()
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100 else:
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101 self.message_user(request, "Invalid or missing credentials",
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102 level=messages.ERROR)
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103
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104 return render(request, 'gcalendar/google_sync.html', {
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105 'current_app': self.admin_site.name,
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106 'cred_status': cred_status,
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107 'messages': msgs,
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108 'err_msg': err_msg,
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109 'events': events,
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110 })
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111
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112 def authorize(self, request):
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113 """
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114 This view generates the authorization URL and redirects the user to it.
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115 """
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116 site = Site.objects.get_current()
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117 callback_url = 'http://%s%s' % (site.domain,
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118 reverse('admin:gcalendar-auth_return'))
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119 auth_url = oauth.get_auth_url(callback_url)
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120 return HttpResponseRedirect(auth_url)
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121
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122 def auth_return(self, request):
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123 """
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124 This view is called by Google after the user has authorized us access to
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125 their data. We call into the oauth module to process the authorization
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126 code and exchange it for tokens.
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127 """
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128 try:
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129 oauth.auth_return(request)
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130 except oauth.OAuthError as e:
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131 self.message_user(request, str(e), level=messages.ERROR)
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132
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133 return HttpResponseRedirect(reverse('admin:gcalendar-google_sync'))
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134
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135
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136 admin.site.register(Event, EventAdmin)
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