1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
|
# Copyright 2012-2015 Canonical Ltd. This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).
"""Cluster views."""
from __future__ import (
absolute_import,
print_function,
unicode_literals,
)
str = None
__metaclass__ = type
__all__ = [
"ClusterDelete",
"ClusterEdit",
"ClusterInterfaceCreate",
"ClusterInterfaceDelete",
"ClusterInterfaceEdit",
"ClusterListView",
]
from collections import OrderedDict
from django.contrib import messages
from django.core.urlresolvers import reverse
from django.http import HttpResponseRedirect
from django.shortcuts import get_object_or_404
from django.utils.safestring import mark_safe
from django.views.generic import (
CreateView,
DeleteView,
UpdateView,
)
from django.views.generic.edit import (
FormMixin,
ProcessFormView,
)
from maasserver.enum import (
NODEGROUP_STATUS,
NODEGROUP_STATUS_CHOICES,
)
from maasserver.forms import (
NodeGroupEdit,
NodeGroupInterfaceForm,
)
from maasserver.models import (
BootResource,
NodeGroup,
NodeGroupInterface,
)
from maasserver.views import PaginatedListView
class ClusterListView(PaginatedListView, FormMixin, ProcessFormView):
template_name = 'maasserver/cluster_listing.html'
context_object_name = "cluster_list"
status = None
def get_queryset(self):
return NodeGroup.objects.filter(
status=self.status).order_by('cluster_name')
# A record of the urls used to reach the clusters of different
# statuses.
status_links = OrderedDict((
(NODEGROUP_STATUS.ACCEPTED, 'cluster-list'),
(NODEGROUP_STATUS.PENDING, 'cluster-list-pending'),
(NODEGROUP_STATUS.REJECTED, 'cluster-list-rejected'),
))
def make_title_entry(self, status, link_name):
"""Generate an entry as used by make_cluster_listing_title().
This is a utility method only used by make_cluster_listing_title.
It is a separate method for clarity and to help testing."""
link = reverse(link_name)
status_name = NODEGROUP_STATUS_CHOICES[status][1]
nb_clusters = NodeGroup.objects.filter(
status=status).count()
entry = "%d %s cluster%s" % (
nb_clusters,
status_name.lower(),
's' if nb_clusters != 1 else '')
if nb_clusters != 0 and status != self.status:
entry = '<a href="%s">%s</a>' % (link, entry)
return entry
def make_cluster_listing_title(self):
"""Generate this view's title with "tabs" for each cluster status.
Generate a title for this view with the number of clusters for each
possible status. The title includes the links to the other listings
(i.e. if this is the listing for the accepted clusters, include links
to the listings of the pending/rejected clusters). The title will be
of the form: "3 accepted clusters / 1 pending cluster / 2 rejected
clusters". (This is simpler to do in the view rather than write this
using the template language.)
"""
return mark_safe(
' / '.join(
self.make_title_entry(status, link_name)
for status, link_name in self.status_links.items()))
def get_context_data(self, **kwargs):
context = super(ClusterListView, self).get_context_data(**kwargs)
context['current_count'] = NodeGroup.objects.filter(
status=self.status).count()
context['title'] = self.make_cluster_listing_title()
# Display warnings (no images, cluster not connected) for clusters,
# but only for the display of 'accepted' clusters.
context['display_warnings'] = self.status == NODEGROUP_STATUS.ACCEPTED
context['status'] = self.status
context['statuses'] = NODEGROUP_STATUS
context['status_name'] = NODEGROUP_STATUS_CHOICES[self.status][1]
context['region_has_images'] = BootResource.objects.exists()
return context
def post(self, request, *args, **kwargs):
"""Handle a POST request."""
if 'mass_accept_submit' in request.POST:
# Process accept clusters en masse.
number = NodeGroup.objects.accept_all_pending()
messages.info(request, "Accepted %d cluster(s)." % number)
return HttpResponseRedirect(reverse('cluster-list'))
elif 'mass_reject_submit' in request.POST:
# Process reject clusters en masse.
number = NodeGroup.objects.reject_all_pending()
messages.info(request, "Rejected %d cluster(s)." % number)
return HttpResponseRedirect(reverse('cluster-list'))
else:
# Unknown action: redirect to the cluster listing page (this
# shouldn't happen).
return HttpResponseRedirect(reverse('cluster-list'))
class ClusterEdit(UpdateView):
model = NodeGroup
template_name = 'maasserver/nodegroup_edit.html'
form_class = NodeGroupEdit
context_object_name = 'cluster'
def get_form_kwargs(self):
kwargs = super(ClusterEdit, self).get_form_kwargs()
# The cluster form has a boolean checkbox. For those we need to know
# whether a submission came in from the UI (where omitting the field
# means "set to False") or from the API (where it means "leave
# unchanged").
kwargs['ui_submission'] = True
return kwargs
def get_context_data(self, **kwargs):
context = super(ClusterEdit, self).get_context_data(**kwargs)
context['interfaces'] = (
self.object.nodegroupinterface_set.all().order_by('name'))
return context
def get_success_url(self):
return reverse('cluster-list')
def get_object(self):
uuid = self.kwargs.get('uuid', None)
return get_object_or_404(NodeGroup, uuid=uuid)
def form_valid(self, form):
messages.info(self.request, "Cluster updated.")
return super(ClusterEdit, self).form_valid(form)
class ClusterDelete(DeleteView):
template_name = 'maasserver/nodegroup_confirm_delete.html'
context_object_name = 'cluster_to_delete'
def get_object(self):
uuid = self.kwargs.get('uuid', None)
return get_object_or_404(NodeGroup, uuid=uuid)
def get_next_url(self):
return reverse('cluster-list')
def delete(self, request, *args, **kwargs):
cluster = self.get_object()
cluster.delete()
messages.info(request, "Cluster %s deleted." % cluster.cluster_name)
return HttpResponseRedirect(self.get_next_url())
class ClusterInterfaceDelete(DeleteView):
template_name = 'maasserver/nodegroupinterface_confirm_delete.html'
context_object_name = 'interface_to_delete'
def get_object(self):
uuid = self.kwargs.get('uuid', None)
name = self.kwargs.get('name', None)
return get_object_or_404(
NodeGroupInterface, nodegroup__uuid=uuid, name=name)
def get_next_url(self):
uuid = self.kwargs.get('uuid', None)
return reverse('cluster-edit', args=[uuid])
def delete(self, request, *args, **kwargs):
interface = self.get_object()
interface.delete()
messages.info(request, "Interface %s deleted." % interface.name)
return HttpResponseRedirect(self.get_next_url())
class ClusterInterfaceEdit(UpdateView):
template_name = 'maasserver/nodegroupinterface_edit.html'
form_class = NodeGroupInterfaceForm
context_object_name = 'interface'
def get_success_url(self):
uuid = self.kwargs.get('uuid', None)
return reverse('cluster-edit', args=[uuid])
def form_valid(self, form):
messages.info(self.request, "Interface updated.")
return super(ClusterInterfaceEdit, self).form_valid(form)
def get_object(self):
uuid = self.kwargs.get('uuid', None)
name = self.kwargs.get('name', None)
return get_object_or_404(
NodeGroupInterface, nodegroup__uuid=uuid, name=name)
class ClusterInterfaceCreate(CreateView):
template_name = 'maasserver/nodegroupinterface_new.html'
form_class = NodeGroupInterfaceForm
context_object_name = 'interface'
def get_form_kwargs(self):
kwargs = super(ClusterInterfaceCreate, self).get_form_kwargs()
assert kwargs.get('instance', None) is None
kwargs['instance'] = NodeGroupInterface(nodegroup=self.get_nodegroup())
return kwargs
def get_success_url(self):
uuid = self.kwargs.get('uuid', None)
return reverse('cluster-edit', args=[uuid])
def form_valid(self, form):
self.object = form.save()
messages.info(self.request, "Interface created.")
return super(ClusterInterfaceCreate, self).form_valid(form)
def get_nodegroup(self):
nodegroup_uuid = self.kwargs.get('uuid', None)
return get_object_or_404(NodeGroup, uuid=nodegroup_uuid)
def get_context_data(self, **kwargs):
context = super(
ClusterInterfaceCreate, self).get_context_data(**kwargs)
context['nodegroup'] = self.get_nodegroup()
return context
|