-# Create your views here.
+# -*- coding: utf-8 -*-
+# Copyright (C) 2008 Lincoln de Sousa <lincoln@minaslivre.org>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public
+# License along with this program; if not, write to the
+# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+from django.http import HttpResponseRedirect, HttpResponseForbidden
+from django.contrib import auth
+from django.contrib.auth.forms import AuthenticationForm
+from django.contrib.auth.models import User, Group
+from django.newforms import form_for_instance, form_for_model, HiddenInput
+from django.shortcuts import render_to_response, get_object_or_404
+from django.template import RequestContext, Context, loader
+from eventos.models import Palestrante, Trabalho
+from eventos.forms import RegisterLecturer
+
+forbidden = \
+ HttpResponseForbidden('<h2>You are not allowed to do this action.<h2>')
+
+def login(request):
+ """This is a function that will be used as a front-end to the
+ django's login system. It receives username and password fields
+ from a POST request and tries to login the user.
+
+ If login is successful, user will be redirected to the referer
+ address, otherwise will be redirected to /?login_failed.
+ """
+ errors = {}
+ manipulator = AuthenticationForm(request)
+ if request.POST:
+ errors = manipulator.get_validation_errors(request.POST)
+ got_user = manipulator.get_user()
+ if got_user:
+ auth.login(request, got_user)
+ try:
+ request.session.delete_test_cookie()
+ except KeyError:
+ pass
+ return HttpResponseRedirect('/')
+ else:
+ return HttpResponseRedirect('/?login_failed')
+
+ request.session.set_test_cookie()
+ return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/'))
+
+def logout(request):
+ """Simple front-end to django's logout stuff. This function should
+ be mapped to an url and simply called without any parameter.
+ """
+ auth.logout(request)
+ return HttpResponseRedirect('/')
+
+def lecturer_add(request):
+ """Adds a new lecturer to the system.
+ """
+ uform = RegisterLecturer(request.POST or None)
+
+ FormKlass = form_for_model(Palestrante)
+ form = FormKlass(request.POST or None)
+ del form.fields['usuario']
+
+ if request.POST and form.is_valid() and uform.is_valid():
+ cd = uform.cleaned_data
+ group = Group.objects.get_or_create(name='palestrantes')[0]
+
+ # creating the user that will be set as the user of the
+ # lecturer.
+ user = User(username=cd['username'])
+ user.set_password(cd['password1'])
+ user.is_active = True
+ user.save()
+ user.groups.add(group)
+
+ # this commit=False is to avoid IntegritErrors, because at
+ # this point, the lecturer doesn't have an user associated
+ # with it.
+ instance = form.save(commit=False)
+ instance.usuario = user
+ instance.save()
+ return HttpResponseRedirect('/')
+
+ c = {'form': form, 'uform': uform}
+ return render_to_response('eventos/lecturer-add.html', Context(c),
+ context_instance=RequestContext(request))
+
+def lecturer_details(request, lid):
+ """Shows a simple form containing all editable fields of a
+ lecturer and gives the lecturer the possibility to save them =)
+ """
+ if not hasattr(request.user, 'palestrante_set'):
+ return forbidden
+
+ entity = request.user.palestrante_set.get()
+ if entity.id != int(lid):
+ return forbidden
+
+ FormKlass = form_for_instance(entity)
+ del FormKlass.base_fields['usuario']
+
+ form = FormKlass(request.POST or None)
+ if request.POST and form.is_valid():
+ form.save()
+
+ c = {'form': form}
+ return render_to_response('eventos/lecturer-details.html', Context(c),
+ context_instance=RequestContext(request))
+
+def lecturer_talks(request, lid):
+ """Lists all talks of a lecturer (based on lecturer id -- lid
+ parameter).
+ """
+ if not hasattr(request.user, 'palestrante_set'):
+ return forbidden
+
+ entity = request.user.palestrante_set.get()
+ if entity.id != int(lid):
+ return forbidden
+
+ talks = Trabalho.objects.filter(palestrante=entity)
+ c = {'lecturer': entity, 'talks': talks}
+ return render_to_response('eventos/talk-list.html', Context(c),
+ context_instance=RequestContext(request))
+
+def talk_details(request, tid):
+ """Shows a form to edit a talk
+ """
+ entity = get_object_or_404(Trabalho, pk=tid)
+ FormKlass = form_for_instance(entity)
+ form = FormKlass(request.POST or None)
+ if request.POST and form.is_valid():
+ form.save()
+
+ c = {'form': form}
+ return render_to_response('eventos/talk-details.html', Context(c),
+ context_instance=RequestContext(request))
+
+def talk_delete(request, tid):
+ """Drops a talk but only if the logged in user is its owner.
+ """
+ if not hasattr(request.user, 'palestrante_set'):
+ return forbidden
+
+ entity = request.user.palestrante_set.get()
+ talk = Trabalho.objects.filter(pk=tid, palestrante=entity)
+ if not talk:
+ return forbidden
+
+ talk.delete()
+ return HttpResponseRedirect('/lecturer/%d/talks/' % entity.id)
+
+def talk_add(request):
+ """Shows a form to the lecturer send a talk
+ """
+ if not hasattr(request.user, 'palestrante_set'):
+ return forbidden
+
+ entity = request.user.palestrante_set.get()
+ FormKlass = form_for_model(Trabalho)
+ form = FormKlass(request.POST or None,
+ initial={'palestrante': entity.id})
+
+ # This field should not be shown to the user.
+ form.fields['palestrante'].widget = HiddenInput()
+
+ # hidding the owner in the other lecturers list
+ other = Palestrante.objects.exclude(pk=entity.id)
+ form.fields['outros_palestrantes']._set_queryset(other)
+
+ if request.POST and form.is_valid():
+ instance = form.save()
+ return HttpResponseRedirect('/lecturer/%d/talks/' % entity.id)
+
+ c = {'form': form}
+ return render_to_response('eventos/talk-add.html', Context(c),
+ context_instance=RequestContext(request))
projects / cascardo / ema.git / blobdiff