Changes delete all to delete selected in snapshot

Reviewed-by: James Valleroy <jvalleroy@mailbox.org>

plinth/modules/snapshot/templates/snapshot_delete_selected.html

@@ -24,7 +24,7 @@
 {% block content %}
   <h2>{{ title }}</h2>
 
-  <p>{% trans "Delete this snapshot permanently?" %}</p>
+  <p>{% trans "Delete the following snapshots permanently?" %}</p>
 
   <table class="table table-bordered table-condensed table-striped">
     <thead>
@@ -33,22 +33,23 @@
       <th>{% trans "Description" %}</th>
     </thead>
     <tbody>
-      <tr>
-        <td>{{ snapshot.number }}</td>
-        <td>{{ snapshot.date }}</td>
-        <td>{{ snapshot.description }}</td>
-      </tr>
+      {% for snapshot in snapshot_list %}
+        {% if not snapshot.is_default %}
+          <tr>
+            <td>{{ snapshot.number }}</td>
+            <td>{{ snapshot.date }}</td>
+            <td>{{ snapshot.description }}</td>
+          </tr>
+        {% endif %}
+      {% endfor %}
     </tbody>
   </table>
 
   <p>
     <form class="form" method="post">
       {% csrf_token %}
-
-      <input type="submit" class="btn btn-danger"
-             value="{% blocktrans trimmed with number=snapshot.number %}
-                      Delete Snapshot #{{ number }}
-                    {% endblocktrans %}"/>
+      <input type="submit" class="btn btn-danger" name="delete_confirm"
+             value="{% trans 'Delete Snapshots' %}"/>
     </form>
   </p>
 

plinth/modules/snapshot/templates/snapshot_manage.html

@@ -23,27 +23,19 @@
 
 {% block content %}
   {% block configuration %}
+  <form class="form" method="post">
     <div class="button-table">
 
       <div class="button-row row">
-        <form class="form" method="post">
           {% csrf_token %}
           <div class="col-xs-6 text-left">
             <input type="submit" class="btn btn-primary" name="create"
                    value="{% trans 'Create Snapshot' %}"/>
           </div>
-        </form>
-        <div class="col-xs-6 text-right">
-          <a title="{% trans 'Delete all the snapshots' %}"
-             role="button" class="btn btn-danger"
-             {% if not has_deletable_snapshots %}
-             disabled="disabled"
-             {% else %}
-             href="{% url 'snapshot:delete-all' %}"
-             {% endif %}>
-            {% trans 'Delete All' %}
-          </a>
-        </div>
+          <div class="col-xs-6 text-right">
+            <input type="submit" class="btn btn-primary" name="delete_selected"
+                   value="{% trans 'Delete Snapshots' %}"/>
+          </div>
       </div>
 
       <table class="table table-bordered table-condensed table-striped">
@@ -80,14 +72,7 @@
                 </td>
                 <td>
                   {% if not snapshot.is_default %}
-                    <a href="{% url 'snapshot:delete' snapshot.number %}"
-                       class="btn btn-default btn-sm" role="button"
-                       title="{% blocktrans trimmed with number=snapshot.number %}
-                             Delete snapshot #{{ number }}
-                       {% endblocktrans %}">
-                      <span class="glyphicon glyphicon-trash"
-                            aria-hidden="true"></span>
-                    </a>
+                    <input type="checkbox" name="snapshot_list" value={{ snapshot.number }} />
                   {% endif %}
                 </td>
               </tr>
@@ -95,7 +80,7 @@
           {% endfor %}
         </tbody>
       </table>
-
     </div>
+  </form>
   {% endblock %}
 {% endblock %}

plinth/modules/snapshot/urls.py

@@ -25,8 +25,8 @@ from . import views
 urlpatterns = [
     url(r'^sys/snapshot/$', views.index, name='index'),
     url(r'^sys/snapshot/manage/$', views.manage, name='manage'),
-    url(r'^sys/snapshot/(?P<number>\d+)/delete$', views.delete, name='delete'),
     url(r'^sys/snapshot/all/delete$', views.delete_all, name='delete-all'),
+    url(r'^sys/snapshot/selected/delete$', views.delete_selected, name='delete-selected'),
     url(r'^sys/snapshot/(?P<number>\d+)/rollback$', views.rollback,
         name='rollback'),
 ]

plinth/modules/snapshot/views.py

@@ -70,6 +70,10 @@ def manage(request):
         if 'create' in request.POST:
             actions.superuser_run('snapshot', ['create'])
             messages.success(request, _('Created snapshot.'))
+        if 'delete_selected' in request.POST:
+            snapshot_to_delete = request.POST.getlist('snapshot_list')
+            request.session['snapshots'] = snapshot_to_delete
+            return redirect(reverse('snapshot:delete-selected'))
 
     output = actions.superuser_run('snapshot', ['list'])
     snapshots = json.loads(output)
@@ -124,22 +128,26 @@ def update_configuration(request, old_status, new_status):
                            exception.args[2]))
 
 
-def delete(request, number):
-    """Show confirmation to delete a snapshot."""
-    if request.method == 'POST':
-        actions.superuser_run('snapshot', ['delete', number])
-        messages.success(
-            request, _('Deleted snapshot #{number}.').format(number=number))
-        return redirect(reverse('snapshot:manage'))
-
+def delete_selected(request):
     output = actions.superuser_run('snapshot', ['list'])
     snapshots = json.loads(output)
-    snapshot = next(s for s in snapshots if s['number'] == number)
 
-    return TemplateResponse(request, 'snapshot_delete.html', {
-        'title': _('Delete Snapshot'),
-        'snapshot': snapshot
-    })
+    if request.method == 'POST':
+        if 'snapshots' in request.session:
+            to_delete = request.session['snapshots']
+            for snapshot in to_delete:
+                actions.superuser_run('snapshot', ['delete', snapshot])
+            messages.success(request, _('Deleted the selected snapshots'))
+            return redirect(reverse('snapshot:manage'))
+
+    if 'snapshots' in request.session:
+        data = request.session['snapshots']
+        to_delete = list(filter(lambda x: x['number'] in data, snapshots))
+
+        return TemplateResponse(request, 'snapshot_delete_all.html', {
+            'title': _('Delete Snapshots'),
+            'snapshots': to_delete
+        })
 
 
 def delete_all(request):