X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=eventos%2Fviews.py;h=a4709525aec09651fdbb767eb57c05420ef8e442;hb=904c8cbfbcaf18c21e19f58d81adff6b8b271e9f;hp=60f00ef0ef347811e7b0c0921b7fda097acd9fcc;hpb=bf6bad4ef390aa77063475102824fd16202b72b3;p=cascardo%2Fema.git

diff --git a/eventos/views.py b/eventos/views.py
index 60f00ef..a470952 100644
--- a/eventos/views.py
+++ b/eventos/views.py
@@ -1 +1,137 @@
-# 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.newforms import form_for_instance, form_for_model
+from django.shortcuts import render_to_response, get_object_or_404
+from django.template import RequestContext, Context, loader
+from eventos.models import Palestrante, Trabalho
+
+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_details(request, lid):
+    """Shows a simple form containing all editable fields of a
+    lecturer and gives the lecturer the possibility to save them =)
+    """
+    entity = request.user.palestrante_set.get()
+    # avoiding problems if some other user tries to edit the lecturer
+    # info.
+    if entity.id != int(lid):
+        return HttpResponseForbidden('<h2>You are not '
+                                     'allowed to edit '
+                                     'this info.<h2>')
+
+    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).
+    """
+    lecturer = get_object_or_404(Palestrante, pk=lid)
+    talks = Trabalho.objects.filter(palestrante=lecturer)
+    c = {'lecturer': lecturer, '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.
+    """
+    entity = get_object_or_404(Trabalho, pk=tid)
+    palestrante = request.user.palestrante_set.get()
+    owner = Trabalho.objects.filter(pk=tid, palestrante=palestrante)
+    if not owner:
+        return HttpResponseForbidden('<h2>You are not '
+                                     'allowed to edit '
+                                     'this info.<h2>')
+    entity.delete()
+    return HttpResponseRedirect('/lecturer/%d/talks/' % palestrante.id)
+
+def talk_add(request):
+    """Shows a form to the lecturer send a talk
+    """
+    palestrante = request.user.palestrante_set.get()
+    FormKlass = form_for_model(Trabalho)
+    form = FormKlass(request.POST or None)
+
+    other = Palestrante.objects.exclude(pk=palestrante.id)
+    form.fields['palestrante'].label = u'Outros Palestrantes'
+    form.fields['palestrante'].required = False
+    form.fields['palestrante']._set_queryset(other)
+
+    if request.POST and form.is_valid():
+        instance = form.save()
+        instance.palestrante.add(palestrante)
+        return HttpResponseRedirect('/lecturer/%d/talks/' % palestrante.id)
+
+    c = {'form': form}
+    return render_to_response('eventos/talk-add.html', Context(c),
+                              context_instance=RequestContext(request))