From 9da5997447cb3973efddde8691c715b32540dc9f Mon Sep 17 00:00:00 2001
From: heinzel <heinzel@heinzelwelt.de>
Date: Tue, 13 Mar 2018 11:49:41 +0100
Subject: [PATCH] Preparations for copy event feature.

---
 dav_events/forms/generic.py                       | 12 ++++++++++++
 dav_events/templates/dav_events/event_detail.html |  4 +---
 dav_events/urls.py                                |  5 +++--
 dav_events/views/events.py                        | 13 +++++++++++++
 4 files changed, 29 insertions(+), 5 deletions(-)

diff --git a/dav_events/forms/generic.py b/dav_events/forms/generic.py
index 9f8303e..6de15a8 100644
--- a/dav_events/forms/generic.py
+++ b/dav_events/forms/generic.py
@@ -130,3 +130,15 @@ class ModelMixin(object):
             if hasattr(model, attr):
                 kwargs2[attr] = kwargs1[attr]
         return model(**kwargs2)
+
+    def load_from_instance(self, instance):
+        model = self._get_model()
+        if not isinstance(instance, model):
+            raise TypeError('Expected %s' % model.__class__.__name__)
+        self.is_bound = True
+        self.data = {}
+        self.cleaned_data = {}
+        for field in instance._meta.get_fields():
+            self.data[field.name] = getattr(instance, field.name)
+            self.cleaned_data[field.name] = getattr(instance, field.name)
+        self._post_clean()
\ No newline at end of file
diff --git a/dav_events/templates/dav_events/event_detail.html b/dav_events/templates/dav_events/event_detail.html
index 3ca485f..0e2db91 100644
--- a/dav_events/templates/dav_events/event_detail.html
+++ b/dav_events/templates/dav_events/event_detail.html
@@ -60,14 +60,12 @@
 {% block page-container-fluid %}
 <div class="action-tabs">
     <div class="pull-right">
-        <!--
         <a class="btn btn-primary"
-           href="{% url 'dav_events:event_detail' event.pk %}"
+           href="{% url 'dav_events:event_copy' event.pk %}"
            title="{% trans 'Diese Veranstaltung als Vorlage für eine neue Veranstaltung benutzen' %}">
             {% bootstrap_icon 'duplicate' %}&thinsp;
             {% trans 'Kopieren' %}
         </a>
-        -->
         {% if has_permission_accept %}
         <a class="btn {% if event.get_status == 'submitted' %}btn-success{% else %}btn-default disabled{% endif %}"
            data-toggle="modal" data-target="#modal-accept-dialog">
diff --git a/dav_events/urls.py b/dav_events/urls.py
index 7813f74..0dd15d3 100644
--- a/dav_events/urls.py
+++ b/dav_events/urls.py
@@ -9,11 +9,12 @@ urlpatterns = [
     url(r'^user/password$', views.auth.SetPasswordView.as_view(), name='set_password'),
     url(r'^user/password/reset$', views.auth.ResetPasswordView.as_view(), name='reset_password'),
     url(r'^events$', views.events.EventListView.as_view(), name='event_list'),
-    url(r'^events/create$', views.events.EventCreateView.as_view(), name='event_create'),
     url(r'^events/export$', views.events.EventListExportView.as_view(), name='event_list_export'),
-    url(r'^events/(?P<pk>\d+)/accept', views.events.EventAcceptView.as_view(), name='event_accept'),
+    url(r'^events/create$', views.events.EventCreateView.as_view(), name='event_create'),
+    url(r'^events/(?P<pk>\d+)/copy', views.events.EventCopyView.as_view(), name='event_copy'),
     url(r'^events/(?P<pk>\d+)/confirmpublication',
         views.events.EventConfirmPublicationView.as_view(), name='event_confirmpublication'),
+    url(r'^events/(?P<pk>\d+)/accept', views.events.EventAcceptView.as_view(), name='event_accept'),
     url(r'^events/(?P<pk>\d+)/edit', views.events.EventUpdateView.as_view(), name='event_update'),
     url(r'^events/(?P<pk>\d+)/', views.events.EventDetailView.as_view(), name='event_detail'),
     url(r'^action/(?P<pk>[a-fA-F0-9]{8}-([a-fA-F0-9]{4}-){3}[a-fA-F0-9]{12})/',
diff --git a/dav_events/views/events.py b/dav_events/views/events.py
index 68827ea..dcb7c31 100644
--- a/dav_events/views/events.py
+++ b/dav_events/views/events.py
@@ -220,6 +220,19 @@ class EventUpdateView(EventPermissionMixin, generic.UpdateView):
         return super(EventUpdateView, self).dispatch(request, *args, **kwargs)
 
 
+class EventCopyView(EventDetailView):
+    permission = 'view'
+    form_class = forms.events.EventCreateForm
+
+    def get(self, request, *args, **kwargs):
+        event = self.get_object()
+        initial_form_name = self.form_class.get_initial_form_name()
+        form_class = getattr(forms.events, initial_form_name)
+        form = form_class(request=self.request)
+        form.load_from_instance(event)
+        return HttpResponseRedirect(reverse('dav_events:event_create'))
+
+
 class EventCreateView(generic.FormView):
     form_class = forms.events.EventCreateForm
     template_dir = os.path.join('dav_events', 'event_create')