dashboard: disk resize messages

circle/circle/urls.py

@@ -65,7 +65,8 @@ urlpatterns = patterns(
     url(r'^info/support/$',
         TemplateView.as_view(template_name="info/support.html"),
         name="info.support"),
-    url(r'^info/resize-how-to/$', ResizeHelpView.as_view(), name="info.resize"),
+    url(r'^info/resize-how-to/$', ResizeHelpView.as_view(),
+        name="info.resize"),
 )
 
 

circle/request/models.py

@@ -35,8 +35,10 @@ import requests
 from sizefield.models import FileSizeField
 from model_utils.models import TimeStampedModel
 from model_utils import Choices
+from sizefield.utils import filesizeformat
 
 from vm.models import Instance, InstanceTemplate, Lease
+from vm.operations import ResourcesOperation, ResizeDiskOperation
 from storage.models import Disk
 
 logger = logging.getLogger(__name__)
@@ -51,6 +53,9 @@ class RequestAction(Model):
     def accept_msg(self):
         raise NotImplementedError
 
+    def is_acceptable(self):
+        return True
+
     class Meta:
         abstract = True
 
@@ -147,6 +152,10 @@ class Request(TimeStampedModel):
             decline_msg, url=self.get_absolute_url(), reason=self.reason,
         )
 
+    @property
+    def is_acceptable(self):
+        return self.action.is_acceptable()
+
 
 class LeaseType(RequestType):
     lease = ForeignKey(Lease, verbose_name=_("Lease"))
@@ -204,6 +213,9 @@ class ResourceChangeAction(RequestAction):
             'priority': self.priority,
         }
 
+    def is_acceptable(self):
+        return self.instance.status in ResourcesOperation.accept_states
+
 
 class ExtendLeaseAction(RequestAction):
     instance = ForeignKey(Instance)
@@ -255,19 +267,23 @@ class DiskResizeAction(RequestAction):
     disk = ForeignKey(Disk)
     size = FileSizeField(null=True, default=None)
 
-    def get_readable_level(self):
-        return self.LEVELS[self.level]
-
     def accept(self, user):
-        pass
+        self.instance.resize_disk(disk=self.disk, size=self.size, user=user)
 
     @property
     def accept_msg(self):
-        return ungettext(
-            "You got access to the following template: %s",
-            "You got access to the following templates: %s",
-            self.template_type.templates.count()
-        ) % ", ".join([x.name for x in self.template_type.templates.all()])
+        return _(
+            'The disk <em class="text-muted">%(disk_name)s (#%(id)d)</em> of '
+            '<a href="%(url)s">%(vm_name)s</a> got resized. '
+            'The new size is: %(bytes)d bytes (%(size)s).'
+        ) % {'disk_name': self.disk.name, 'id': self.disk.id,
+             'url': self.instance.get_absolute_url(),
+             'vm_name': self.instance.name,
+             'bytes': self.size, 'size': filesizeformat(self.size),
+             }
+
+    def is_acceptable(self):
+        return self.instance.status in ResizeDiskOperation.accept_states
 
 
 def send_notifications(sender, instance, created, **kwargs):

circle/request/templates/request/detail.html

@@ -66,6 +66,15 @@
             <dd>{{ action.get_readable_level }}</dd>
           </dl>
         {% elif object.type == "resource" %}
+          {% if not is_acceptable %}
+            <div class="alert alert-warning">
+              {% blocktrans %}
+              To change the resources the virtual machine must be in one of the following states:
+              STOPPED, PENDING, RUNNING. If the virtual machine is running it will be
+              automatically stopped when accepting the request.
+              {% endblocktrans %}
+            </div>
+          {% endif %}
           <dl>
             <dt>{% trans "VM name" %}</dt>
             <dd><a href="{{ action.instance.get_absolute_url }}">{{ action.instance.name }}</a></dd>
@@ -75,7 +84,7 @@
               {{ action.instance.get_status_display|upper }}
             </dd>
             <dt>{% trans "VM description" %}</dt>
-            <dd>{{ action.instance.description }}</dd>
+            <dd>{{ action.instance.description|default:"-" }}</dd>
             <dt>
               {% trans "Priority" %}
               <span class="text-muted" style="font-weight: normal;">{% trans "(old values in parentheses)" %}</span>
@@ -87,9 +96,19 @@
             <dd>{{ action.ram_size }} ({{ action.instance.ram_size }}) MiB</dd>
           </dl>
         {% elif object.type == "resize" %}
+          {% if not is_acceptable %}
+            <div class="alert alert-warning">
+              {% trans "To resize the disk the virtual machine must be in RUNNING state." %}
+            </div>
+          {% endif %}
           <dl>
             <dt>{% trans "VM name" %}</dt>
             <dd><a href="{{ action.instance.get_absolute_url }}">{{ action.instance.name }}</a></dd>
+            <dt>{% trans "Status" %}</dt>
+            <dd>
+              <i class="fa {{ action.instance.get_status_icon }}"></i>
+              {{ action.instance.get_status_display|upper }}
+            </dd>
             <dt>{% trans "VM description" %}</dt>
             <dd>{{ action.instance.description|default:"-" }}</dd>
             <dt>{% trans "Disk" %}</dt>
@@ -125,7 +144,7 @@
                 {% trans "Decline" %}
               </button>
             </form>
-            {% if object.type == "resource" and action.instance.status not in accept_states %}
+            {% if not is_acceptable %}
               {% trans "You can't accept this request because of the VM's state." %}
             {% else %}
               <form method="POST">

circle/request/views.py

@@ -19,11 +19,13 @@ from __future__ import unicode_literals, absolute_import
 from django.views.generic import (
     UpdateView, TemplateView, DetailView, CreateView, FormView, DeleteView,
 )
+from django.contrib import messages
 from django.contrib.messages.views import SuccessMessageMixin
 from django.shortcuts import redirect, get_object_or_404
 from django.core.exceptions import PermissionDenied, SuspiciousOperation
 from django.core.urlresolvers import reverse
 from django.utils.translation import ugettext as _
+from django.http import JsonResponse
 
 from braces.views import SuperuserRequiredMixin, LoginRequiredMixin
 from django_tables2 import SingleTableView
@@ -34,7 +36,6 @@ from request.models import (
 )
 from storage.models import Disk
 from vm.models import Instance
-from vm.operations import ResourcesOperation
 from request.tables import (
     RequestTable, TemplateAccessTypeTable, LeaseTypeTable,
 )
@@ -94,7 +95,7 @@ class RequestDetail(LoginRequiredMixin, DetailView):
         context = super(RequestDetail, self).get_context_data(**kwargs)
 
         context['action'] = request.action
-        context['accept_states'] = ResourcesOperation.accept_states
+        context['is_acceptable'] = request.is_acceptable
         # workaround for http://git.io/vIIYi
         context['request'] = self.request
 
@@ -168,6 +169,7 @@ class RequestTypeList(LoginRequiredMixin, SuperuserRequiredMixin,
 class TemplateRequestView(LoginRequiredMixin, FormView):
     form_class = TemplateRequestForm
     template_name = "request/request-template.html"
+    success_message = _("Request successfully sent.")
 
     def get_form_kwargs(self):
         kwargs = super(TemplateRequestView, self).get_form_kwargs()
@@ -193,7 +195,8 @@ class TemplateRequestView(LoginRequiredMixin, FormView):
         )
         req.save()
 
-        return redirect("/")
+        messages.success(self.request, self.success_message)
+        return redirect(reverse("dashboard.index"))
 
 
 class VmRequestMixin(LoginRequiredMixin, object):
@@ -225,6 +228,7 @@ class LeaseRequestView(VmRequestMixin, FormView):
     form_class = LeaseRequestForm
     template_name = "request/request-lease.html"
     user_level = "operator"
+    success_message = _("Request successfully sent.")
 
     def form_valid(self, form):
         data = form.cleaned_data
@@ -245,6 +249,7 @@ class LeaseRequestView(VmRequestMixin, FormView):
         )
         req.save()
 
+        messages.success(self.request, self.success_message)
         return redirect(vm.get_absolute_url())
 
 
@@ -252,6 +257,7 @@ class ResourceRequestView(VmRequestMixin, FormView):
     form_class = ResourceRequestForm
     template_name = "request/request-resource.html"
     user_level = "user"
+    success_message = _("Request successfully sent.")
 
     def get_form_kwargs(self):
         kwargs = super(ResourceRequestView, self).get_form_kwargs()
@@ -288,6 +294,7 @@ class ResourceRequestView(VmRequestMixin, FormView):
         )
         req.save()
 
+        messages.success(self.request, self.success_message)
         return redirect(vm.get_absolute_url())
 
 
@@ -295,6 +302,7 @@ class ResizeRequestView(VmRequestMixin, FormView):
     form_class = ResizeRequestForm
     template_name = "request/_request-resize-form.html"
     user_level = "owner"
+    success_message = _("Request successfully sent.")
 
     def get_disk(self, *args, **kwargs):
         return get_object_or_404(Disk, pk=self.kwargs['disk_pk'])
@@ -327,12 +335,13 @@ class ResizeRequestView(VmRequestMixin, FormView):
         dra = DiskResizeAction(instance=vm, disk=disk, size=data['size'])
         dra.save()
 
-        req = Request(
-            user=user,
-            message=data['message'],
-            type=Request.TYPES.resize,
-            action=dra
-        )
+        req = Request(user=user, message=data['message'], action=dra,
+                      type=Request.TYPES.resize)
         req.save()
 
-        return redirect(vm.get_absolute_url())
+        if self.request.is_ajax():
+            return JsonResponse({'success': True,
+                                 'messages': [self.success_message]})
+        else:
+            messages.success(self.request, self.success_message)
+            return redirect(vm.get_absolute_url())