1 # -*- coding: utf-8 -*-
2 # Copyright (C) 2008 Lincoln de Sousa <lincoln@minaslivre.org>
4 # This program is free software; you can redistribute it and/or
5 # modify it under the terms of the GNU General Public License as
6 # published by the Free Software Foundation; either version 2 of the
7 # License, or (at your option) any later version.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 # General Public License for more details.
14 # You should have received a copy of the GNU General Public
15 # License along with this program; if not, write to the
16 # Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 # Boston, MA 02111-1307, USA.
18 from django.conf import settings
19 from django.http import HttpResponseRedirect, HttpResponseForbidden
20 from django.contrib.auth import authenticate, login as login_django, \
21 logout as logout_django
22 from django.contrib.auth.models import User, Group
23 from django.forms import HiddenInput, ModelForm
24 from django.shortcuts import render_to_response, get_object_or_404
25 from django.template import RequestContext, Context, loader
26 from eventos.models import Palestrante, Trabalho, TipoTrabalho, Trilha, Evento, Improve
27 from eventos.forms import RegisterSpeaker
28 from django.db.models import Q
31 HttpResponseForbidden('<h2>You are not allowed to do this action.<h2>')
33 class SpeakerForm(ModelForm):
36 exclude = ('usuario',)
38 class TalkForm(ModelForm):
42 class ImproveForm(ModelForm):
47 """This is a function that will be used as a front-end to the
48 django's login system. It receives username and password fields
49 from a POST request and tries to login the user.
51 If login is successful, user will be redirected to the referer
52 address, otherwise will be redirected to /?login_failed.
54 username = request.POST['username']
55 password = request.POST['password']
56 user = authenticate(username=username, password=password)
60 login_django(request, user)
62 request.session.delete_test_cookie()
65 return HttpResponseRedirect('/')
67 return HttpResponseRedirect('/?login_failed')
69 return HttpResponseRedirect('/?login_failed')
71 request.session.set_test_cookie()
72 return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/'))
75 """Simple front-end to django's logout stuff. This function should
76 be mapped to an url and simply called without any parameter.
78 logout_django(request)
79 return HttpResponseRedirect('/')
81 def speaker_add(request):
82 """Adds a new speaker to the system.
84 uform = RegisterSpeaker(request.POST or None)
86 form = SpeakerForm(request.POST or None)
88 if request.POST and form.is_valid() and uform.is_valid():
89 cd = uform.cleaned_data
90 group = Group.objects.get_or_create(name='palestrantes')[0]
92 # creating the user that will be set as the user of the
94 user = User(username=cd['username'])
95 user.set_password(cd['password1'])
98 user.groups.add(group)
100 # this commit=False is to avoid IntegritErrors, because at
101 # this point, the speaker doesn't have an user associated
103 instance = form.save(commit=False)
104 instance.usuario = user
106 return HttpResponseRedirect('/')
108 c = {'form': form, 'uform': uform}
109 return render_to_response('eventos/speaker-add.html', Context(c),
110 context_instance=RequestContext(request))
112 def speaker_details(request, lid):
113 """Shows a simple form containing all editable fields of a
114 speaker and gives the speaker the possibility to save them =)
116 speaker = get_object_or_404(Palestrante, pk=lid)
117 d = {'speaker' : speaker}
118 if not hasattr(request.user, 'palestrante_set'):
119 return render_to_response('eventos/speaker-details2.html', Context(d),
120 context_instance=RequestContext(request))
122 entity = request.user.palestrante_set.get()
123 if entity.id != int(lid):
124 return render_to_response('eventos/speaker-details2.html', Context(d),
125 context_instance=RequestContext(request))
127 form = SpeakerForm(request.POST or None, instance=entity)
129 if request.POST and form.is_valid():
133 return render_to_response('eventos/speaker-details.html', Context(c),
134 context_instance=RequestContext(request))
136 def speaker_talks(request, lid):
137 """Lists all talks of a speaker (based on speaker id -- lid
140 if not hasattr(request.user, 'palestrante_set'):
143 entity = request.user.palestrante_set.get()
144 if entity.id != int(lid):
147 talks = Trabalho.objects.filter(
148 Q(palestrante=entity) | Q(outros_palestrantes=entity) )
150 c = {'speaker': entity, 'talks': talks}
151 return render_to_response('eventos/talk-list.html', Context(c),
152 context_instance=RequestContext(request))
154 def talk_details(request, tid):
155 """Shows a form to edit a talk
157 # If the user is not a speaker we should not try to show anything.
158 if not hasattr(request.user, 'palestrante_set'):
161 # Selected in settings.py (SITE_ID) variable, because an event can
162 # be linked with only one site.
163 event = Evento.objects.get(site__id__exact=settings.SITE_ID)
166 entity = get_object_or_404(Trabalho, pk=tid)
167 form = TalkForm(request.POST or None, instance=entity)
169 # These fields should not be shown to the user.
170 form.fields['palestrante'].widget = HiddenInput()
171 form.fields['evento'].widget = HiddenInput()
173 # These fields are event specific
174 trilhas = Trilha.objects.filter(evento=event)
175 form.fields['trilha']._set_queryset(trilhas)
177 tipos = TipoTrabalho.objects.filter(evento=event)
178 form.fields['tipo']._set_queryset(tipos)
180 # hidding the owner in the other speakers list
181 other = Palestrante.objects.exclude(pk=entity.id)
182 form.fields['outros_palestrantes']._set_queryset(other)
183 if other.count() == 0:
184 # I need set the value to '', otherwise the wise django
185 # newforms will fill the field with the invalid string '[]'
186 form.fields['outros_palestrantes'].initial = ''
187 form.fields['outros_palestrantes'].widget = HiddenInput()
189 # avoiding smart people trying to se talks of other speakers.
190 speaker = request.user.palestrante_set.get()
191 if speaker.id != entity.palestrante.id \
192 and speaker not in entity.outros_palestrantes.all():
195 if request.POST and form.is_valid():
199 return render_to_response('eventos/talk-details.html', Context(c),
200 context_instance=RequestContext(request))
202 def talk_delete(request, tid):
203 """Drops a talk but only if the logged in user is its owner.
205 if not hasattr(request.user, 'palestrante_set'):
208 entity = request.user.palestrante_set.get()
209 talk = Trabalho.objects.filter(pk=tid, palestrante=entity)
214 return HttpResponseRedirect('/speaker/%d/talks/' % entity.id)
216 def talk_add(request):
217 """Shows a form to the speaker send a talk
219 if not hasattr(request.user, 'palestrante_set'):
223 form = TalkForm(request.POST or None)
225 # These fields should not be shown to the user.
227 # Selected in settings.py (SITE_ID) variable, because an event can
228 # be linked with only one site.
229 entity = request.user.palestrante_set.get()
230 form.fields['palestrante'].widget = HiddenInput(attrs={'value' : entity.id})
232 event = Evento.objects.get(site__id__exact=settings.SITE_ID)
233 form.fields['evento'].widget = HiddenInput(attrs={'value' : event.id})
235 # These fields are event specific
236 trilhas = Trilha.objects.filter(evento=event)
237 form.fields['trilha']._set_queryset(trilhas)
239 tipos = TipoTrabalho.objects.filter(evento=event)
240 form.fields['tipo']._set_queryset(tipos)
242 # hidding the owner in the other speakers list
243 other = Palestrante.objects.exclude(pk=entity.id)
244 form.fields['outros_palestrantes']._set_queryset(other)
245 if other.count() == 0:
246 form.fields['outros_palestrantes'].widget = HiddenInput()
248 if request.POST and form.is_valid():
250 cleaned = form.cleaned_data
251 if cleaned['tipo'].evento.id != event.id:
254 if cleaned['trilha'].evento.id != event.id:
257 instance = form.save()
258 return HttpResponseRedirect('/speaker/%d/talks/' % entity.id)
261 return render_to_response('eventos/talk-add.html', Context(c),
262 context_instance=RequestContext(request))
264 def list_all_talks(request):
265 event = Evento.objects.get(site__id__exact=settings.SITE_ID)
266 trilhas = Trilha.objects.filter(evento=event)
270 talks = Trabalho.objects.filter(trilha=t)
271 aux = {'trilha':t.nome, 'talks':talks}
274 c = {'improve': improve,}
275 return render_to_response('eventos/improve.html', Context(c),
276 context_instance=RequestContext(request))
278 def talk_improve(request, tid):
279 if not hasattr(request.user, 'palestrante_set') and request.POST:
282 talk = get_object_or_404(Trabalho, pk=tid)
283 speaker = talk.palestrante
284 improve = Improve.objects.filter(trabalho=talk)
287 form = ImproveForm(request.POST or None)
288 form.fields['trabalho'].widget = HiddenInput(attrs={'value':talk.id})
289 form.fields['usuario'].widget = HiddenInput(attrs={'value':request.user.id})
291 if request.POST and form.is_valid():
292 event = Evento.objects.get(site__id__exact=settings.SITE_ID)
294 cleaned = form.cleaned_data
295 if cleaned['trabalho'].evento.id != event.id:
298 instance = form.save()
299 return HttpResponseRedirect('/improve/%d/' % talk.id)
301 c = {'talk': talk, 'form': form, 'improve': improve, 'speaker': speaker}
302 return render_to_response('eventos/talk_improve.html', Context(c),
303 context_instance=RequestContext(request))