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 if not hasattr(request.user, 'palestrante_set'):
119 entity = request.user.palestrante_set.get()
120 if entity.id != int(lid):
123 form = SpeakerForm(request.POST or None, instance=entity)
125 if request.POST and form.is_valid():
129 return render_to_response('eventos/speaker-details.html', Context(c),
130 context_instance=RequestContext(request))
132 def speaker_talks(request, lid):
133 """Lists all talks of a speaker (based on speaker id -- lid
136 if not hasattr(request.user, 'palestrante_set'):
139 entity = request.user.palestrante_set.get()
140 if entity.id != int(lid):
143 talks = Trabalho.objects.filter(
144 Q(palestrante=entity) | Q(outros_palestrantes=entity) )
146 c = {'speaker': entity, 'talks': talks}
147 return render_to_response('eventos/talk-list.html', Context(c),
148 context_instance=RequestContext(request))
150 def talk_details(request, tid):
151 """Shows a form to edit a talk
153 # If the user is not a speaker we should not try to show anything.
154 if not hasattr(request.user, 'palestrante_set'):
157 # Selected in settings.py (SITE_ID) variable, because an event can
158 # be linked with only one site.
159 event = Evento.objects.get(site__id__exact=settings.SITE_ID)
162 entity = get_object_or_404(Trabalho, pk=tid)
163 form = TalkForm(request.POST or None, instance=entity)
165 # These fields should not be shown to the user.
166 form.fields['palestrante'].widget = HiddenInput()
167 form.fields['evento'].widget = HiddenInput()
169 # These fields are event specific
170 trilhas = Trilha.objects.filter(evento=event)
171 form.fields['trilha']._set_queryset(trilhas)
173 tipos = TipoTrabalho.objects.filter(evento=event)
174 form.fields['tipo']._set_queryset(tipos)
176 # hidding the owner in the other speakers list
177 other = Palestrante.objects.exclude(pk=entity.id)
178 form.fields['outros_palestrantes']._set_queryset(other)
179 if other.count() == 0:
180 # I need set the value to '', otherwise the wise django
181 # newforms will fill the field with the invalid string '[]'
182 form.fields['outros_palestrantes'].initial = ''
183 form.fields['outros_palestrantes'].widget = HiddenInput()
185 # avoiding smart people trying to se talks of other speakers.
186 speaker = request.user.palestrante_set.get()
187 if speaker.id != entity.palestrante.id \
188 and speaker not in entity.outros_palestrantes.all():
191 if request.POST and form.is_valid():
195 return render_to_response('eventos/talk-details.html', Context(c),
196 context_instance=RequestContext(request))
198 def talk_delete(request, tid):
199 """Drops a talk but only if the logged in user is its owner.
201 if not hasattr(request.user, 'palestrante_set'):
204 entity = request.user.palestrante_set.get()
205 talk = Trabalho.objects.filter(pk=tid, palestrante=entity)
210 return HttpResponseRedirect('/speaker/%d/talks/' % entity.id)
212 def talk_add(request):
213 """Shows a form to the speaker send a talk
215 if not hasattr(request.user, 'palestrante_set'):
219 form = TalkForm(request.POST or None)
221 # These fields should not be shown to the user.
223 # Selected in settings.py (SITE_ID) variable, because an event can
224 # be linked with only one site.
225 entity = request.user.palestrante_set.get()
226 form.fields['palestrante'].widget = HiddenInput(attrs={'value' : entity.id})
228 event = Evento.objects.get(site__id__exact=settings.SITE_ID)
229 form.fields['evento'].widget = HiddenInput(attrs={'value' : event.id})
231 # These fields are event specific
232 trilhas = Trilha.objects.filter(evento=event)
233 form.fields['trilha']._set_queryset(trilhas)
235 tipos = TipoTrabalho.objects.filter(evento=event)
236 form.fields['tipo']._set_queryset(tipos)
238 # hidding the owner in the other speakers list
239 other = Palestrante.objects.exclude(pk=entity.id)
240 form.fields['outros_palestrantes']._set_queryset(other)
241 if other.count() == 0:
242 form.fields['outros_palestrantes'].widget = HiddenInput()
244 if request.POST and form.is_valid():
246 cleaned = form.cleaned_data
247 if cleaned['tipo'].evento.id != event.id:
250 if cleaned['trilha'].evento.id != event.id:
253 instance = form.save()
254 return HttpResponseRedirect('/speaker/%d/talks/' % entity.id)
257 return render_to_response('eventos/talk-add.html', Context(c),
258 context_instance=RequestContext(request))
260 def list_all_talks(request):
261 event = Evento.objects.get(site__id__exact=settings.SITE_ID)
262 trilhas = Trilha.objects.filter(evento=event)
266 talks = Trabalho.objects.filter(trilha=t)
267 aux = {'trilha':t.nome, 'talks':talks}
270 c = {'improve': improve,}
271 return render_to_response('eventos/improve.html', Context(c),
272 context_instance=RequestContext(request))
274 def talk_improve(request, tid):
278 talk = get_object_or_404(Trabalho, pk=tid)
279 improve = Improve.objects.filter(trabalho=talk)
282 form = ImproveForm(request.POST or None)
283 form.fields['trabalho'].widget = HiddenInput(attrs={'value':talk.id})
284 form.fields['usuario'].widget = HiddenInput(attrs={'value':request.user.id})
286 if request.POST and form.is_valid():
287 event = Evento.objects.get(site__id__exact=settings.SITE_ID)
289 cleaned = form.cleaned_data
290 if cleaned['trabalho'].evento.id != event.id:
293 instance = form.save()
294 return HttpResponseRedirect('/improve/%d/' % talk.id)
296 c = {'talk': talk, 'form': form, 'improve': improve}
297 return render_to_response('eventos/talk_improve.html', Context(c),
298 context_instance=RequestContext(request))