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
27 from eventos.forms import RegisterSpeaker
30 HttpResponseForbidden('<h2>You are not allowed to do this action.<h2>')
32 class SpeakerForm(ModelForm):
35 exclude = ('usuario',)
37 class TalkForm(ModelForm):
42 """This is a function that will be used as a front-end to the
43 django's login system. It receives username and password fields
44 from a POST request and tries to login the user.
46 If login is successful, user will be redirected to the referer
47 address, otherwise will be redirected to /?login_failed.
49 username = request.POST['username']
50 password = request.POST['password']
51 user = authenticate(username=username, password=password)
55 login_django(request, user)
57 request.session.delete_test_cookie()
60 return HttpResponseRedirect('/')
62 return HttpResponseRedirect('/?login_failed')
64 return HttpResponseRedirect('/?login_failed')
66 request.session.set_test_cookie()
67 return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/'))
70 """Simple front-end to django's logout stuff. This function should
71 be mapped to an url and simply called without any parameter.
73 logout_django(request)
74 return HttpResponseRedirect('/')
76 def speaker_add(request):
77 """Adds a new speaker to the system.
79 uform = RegisterSpeaker(request.POST or None)
81 form = SpeakerForm(request.POST or None)
83 if request.POST and form.is_valid() and uform.is_valid():
84 cd = uform.cleaned_data
85 group = Group.objects.get_or_create(name='palestrantes')[0]
87 # creating the user that will be set as the user of the
89 user = User(username=cd['username'])
90 user.set_password(cd['password1'])
93 user.groups.add(group)
95 # this commit=False is to avoid IntegritErrors, because at
96 # this point, the speaker doesn't have an user associated
98 instance = form.save(commit=False)
99 instance.usuario = user
101 return HttpResponseRedirect('/')
103 c = {'form': form, 'uform': uform}
104 return render_to_response('eventos/speaker-add.html', Context(c),
105 context_instance=RequestContext(request))
107 def speaker_details(request, lid):
108 """Shows a simple form containing all editable fields of a
109 speaker and gives the speaker the possibility to save them =)
111 if not hasattr(request.user, 'palestrante_set'):
114 entity = request.user.palestrante_set.get()
115 if entity.id != int(lid):
118 form = SpeakerForm(request.POST or None, instance=entity)
120 if request.POST and form.is_valid():
124 return render_to_response('eventos/speaker-details.html', Context(c),
125 context_instance=RequestContext(request))
127 def speaker_talks(request, lid):
128 """Lists all talks of a speaker (based on speaker id -- lid
131 if not hasattr(request.user, 'palestrante_set'):
134 entity = request.user.palestrante_set.get()
135 if entity.id != int(lid):
138 talks = Trabalho.objects.filter(palestrante=entity)
139 c = {'speaker': entity, 'talks': talks}
140 return render_to_response('eventos/talk-list.html', Context(c),
141 context_instance=RequestContext(request))
143 def talk_details(request, tid):
144 """Shows a form to edit a talk
146 # Selected in settings.py (SITE_ID) variable, because an event can
147 # be linked with only one site.
148 event = Evento.objects.get(site__id__exact=settings.SITE_ID)
151 entity = get_object_or_404(Trabalho, pk=tid)
152 form = TalkForm(request.POST or None, instance=entity)
154 # These fields should not be shown to the user.
155 form.fields['palestrante'].widget = HiddenInput()
156 form.fields['evento'].widget = HiddenInput()
158 # These fields are event specific
159 trilhas = Trilha.objects.filter(evento=event)
160 form.fields['trilha']._set_queryset(trilhas)
162 tipos = TipoTrabalho.objects.filter(evento=event)
163 form.fields['tipo']._set_queryset(tipos)
165 # hidding the owner in the other speakers list
166 other = Palestrante.objects.exclude(pk=entity.id)
167 form.fields['outros_palestrantes']._set_queryset(other)
168 if other.count() == 0:
169 # I need set the value to '', otherwise the wise django
170 # newforms will fill the field with the invalid string '[]'
171 form.fields['outros_palestrantes'].initial = ''
172 form.fields['outros_palestrantes'].widget = HiddenInput()
174 if request.POST and form.is_valid():
178 return render_to_response('eventos/talk-details.html', Context(c),
179 context_instance=RequestContext(request))
181 def talk_delete(request, tid):
182 """Drops a talk but only if the logged in user is its owner.
184 if not hasattr(request.user, 'palestrante_set'):
187 entity = request.user.palestrante_set.get()
188 talk = Trabalho.objects.filter(pk=tid, palestrante=entity)
193 return HttpResponseRedirect('/speaker/%d/talks/' % entity.id)
195 def talk_add(request):
196 """Shows a form to the speaker send a talk
198 if not hasattr(request.user, 'palestrante_set'):
202 form = TalkForm(request.POST or None)
204 # These fields should not be shown to the user.
206 # Selected in settings.py (SITE_ID) variable, because an event can
207 # be linked with only one site.
208 entity = request.user.palestrante_set.get()
209 form.fields['palestrante'].widget = HiddenInput(attrs={'value' : entity.id})
211 event = Evento.objects.get(site__id__exact=settings.SITE_ID)
212 form.fields['evento'].widget = HiddenInput(attrs={'value' : event.id})
214 # These fields are event specific
215 trilhas = Trilha.objects.filter(evento=event)
216 form.fields['trilha']._set_queryset(trilhas)
218 tipos = TipoTrabalho.objects.filter(evento=event)
219 form.fields['tipo']._set_queryset(tipos)
221 # hidding the owner in the other speakers list
222 other = Palestrante.objects.exclude(pk=entity.id)
223 form.fields['outros_palestrantes']._set_queryset(other)
224 if other.count() == 0:
225 form.fields['outros_palestrantes'].widget = HiddenInput()
227 if request.POST and form.is_valid():
229 cleaned = form.cleaned_data
230 if cleaned['tipo'].evento.id != event.id:
233 if cleaned['trilha'].evento.id != event.id:
236 instance = form.save()
237 return HttpResponseRedirect('/speaker/%d/talks/' % entity.id)
240 return render_to_response('eventos/talk-add.html', Context(c),
241 context_instance=RequestContext(request))