Fix actions inside instance details view page

At the current moment user can not suspend an
instance from the instance "Details" page if the
instance does not belong to the first page of the
instances list. This is fixed.

Co-Authored-By: Ivan Kolodyazhny <e0ne@e0ne.info>
Co-Authored-By: Vladislav Kuzmin <vkuzmin@mirantis.com>
Change-Id: I4d805e4a65e838242af38677cbb9efefc498a96f
Closes-Bug: #1553142

horizon/tables/base.py

@@ -14,6 +14,7 @@
 
 import collections
 import copy
+import inspect
 import json
 import logging
 from operator import attrgetter
@@ -466,6 +467,8 @@ class Column(html.HTMLElement):
                 return None
         obj_id = self.table.get_object_id(datum)
         if callable(self.link):
+            if 'request' in inspect.getargspec(self.link).args:
+                return self.link(datum, request=self.table.request)
             return self.link(datum)
         try:
             return urlresolvers.reverse(self.link, args=(obj_id,))
@@ -670,11 +673,19 @@ class Row(html.HTMLElement):
 
     def get_ajax_update_url(self):
         table_url = self.table.get_absolute_url()
-        params = urlencode(collections.OrderedDict([
+        marker_name = self.table._meta.pagination_param
+        marker = self.table.request.GET.get(marker_name, None)
+        if not marker:
+            marker_name = self.table._meta.prev_pagination_param
+            marker = self.table.request.GET.get(marker_name, None)
+        request_params = [
             ("action", self.ajax_action_name),
             ("table", self.table.name),
-            ("obj_id", self.table.get_object_id(self.datum))
+            ("obj_id", self.table.get_object_id(self.datum)),
-        ]))
+        ]
+        if marker:
+            request_params.append((marker_name, marker))
+        params = urlencode(collections.OrderedDict(request_params))
         return "%s?%s" % (table_url, params)
 
     def can_be_selected(self, datum):

openstack_dashboard/dashboards/admin/instances/tables.py

@@ -26,6 +26,7 @@ from openstack_dashboard.dashboards.project.instances import audit_tables
 from openstack_dashboard.dashboards.project.instances \
     import tables as project_tables
 from openstack_dashboard import policy
+from openstack_dashboard.views import get_url_with_pagination
 
 
 class AdminEditInstance(project_tables.EditInstance):
@@ -109,6 +110,13 @@ class AdminInstanceFilterAction(tables.FilterAction):
     ) + project_tables.INSTANCE_FILTER_CHOICES
 
 
+def get_server_detail_link(obj, request):
+    return get_url_with_pagination(
+        request, AdminInstancesTable._meta.pagination_param,
+        AdminInstancesTable._meta.prev_pagination_param,
+        "horizon:admin:instances:detail", obj.id)
+
+
 class AdminInstancesTable(tables.DataTable):
     TASK_STATUS_CHOICES = (
         (None, True),
@@ -134,7 +142,7 @@ class AdminInstancesTable(tables.DataTable):
                          verbose_name=_("Host"),
                          classes=('nowrap-col',))
     name = tables.WrappingColumn("name",
-                                 link="horizon:admin:instances:detail",
+                                 link=get_server_detail_link,
                                  verbose_name=_("Name"))
     image_name = tables.Column("image_name",
                                verbose_name=_("Image Name"))

openstack_dashboard/dashboards/project/instances/tables.py

@@ -44,7 +44,7 @@ from openstack_dashboard.dashboards.project.instances.workflows \
 from openstack_dashboard.dashboards.project.instances.workflows \
     import update_instance
 from openstack_dashboard import policy
-
+from openstack_dashboard.views import get_url_with_pagination
 
 LOG = logging.getLogger(__name__)
 
@@ -1207,6 +1207,14 @@ def render_locked(instance):
     return mark_safe(locked_status)
 
 
+def get_server_detail_link(obj, request):
+    return get_url_with_pagination(request,
+                                   InstancesTable._meta.pagination_param,
+                                   InstancesTable._meta.prev_pagination_param,
+                                   'horizon:project:instances:detail',
+                                   obj.id)
+
+
 class InstancesTable(tables.DataTable):
     TASK_STATUS_CHOICES = (
         (None, True),
@@ -1223,7 +1231,7 @@ class InstancesTable(tables.DataTable):
         ("shelved_offloaded", True),
     )
     name = tables.WrappingColumn("name",
-                                 link="horizon:project:instances:detail",
+                                 link=get_server_detail_link,
                                  verbose_name=_("Instance Name"))
     image_name = tables.Column("image_name",
                                verbose_name=_("Image Name"))

openstack_dashboard/dashboards/project/instances/tests.py

@@ -45,6 +45,7 @@ from openstack_dashboard.dashboards.project.instances import tabs
 from openstack_dashboard.dashboards.project.instances import workflows
 from openstack_dashboard.test import helpers
 from openstack_dashboard.usage import quotas
+from openstack_dashboard.views import get_url_with_pagination
 
 
 INDEX_TEMPLATE = 'horizon/common/_data_table_view.html'
@@ -611,12 +612,51 @@ class InstanceTests(helpers.ResetImageAPIVersionMixin, helpers.TestCase):
                                 six.text_type(server.id))
 
         self.mox.ReplayAll()
-
         formData = {'action': 'instances__suspend__%s' % server.id}
-        res = self.client.post(INDEX_URL, formData)
+        url = get_url_with_pagination(
+            self.request, 'next', 'prev', 'horizon:project:instances:index')
+        res = self.client.post(url, formData)
 
         self.assertRedirectsNoFollow(res, INDEX_URL)
 
+    @django.test.utils.override_settings(API_RESULT_PAGE_SIZE=2)
+    @helpers.create_stubs({api.nova: ('server_suspend',
+                                      'server_list',
+                                      'flavor_list',
+                                      'extension_supported',
+                                      'is_feature_available',),
+                           api.glance: ('image_list_detailed',),
+                           api.network: ('servers_update_addresses',)})
+    def test_suspend_instance_if_placed_on_2nd_page(self):
+        page_size = getattr(settings, 'API_RESULT_PAGE_SIZE', 2)
+        servers = self.servers.list()[:3]
+
+        api.nova.extension_supported('AdminActions', IsA(http.HttpRequest)) \
+            .MultipleTimes().AndReturn(True)
+        api.nova.flavor_list(IsA(http.HttpRequest)) \
+            .AndReturn(self.flavors.list())
+        api.glance.image_list_detailed(IgnoreArg()) \
+            .AndReturn((self.images.list(), False, False))
+
+        api.nova.server_list(IsA(http.HttpRequest), search_opts={
+            'marker': servers[page_size - 1].id, 'paginate': True}) \
+            .AndReturn([servers[page_size:], False])
+        api.network.servers_update_addresses(
+            IsA(http.HttpRequest), servers[page_size:])
+        api.nova.server_suspend(IsA(http.HttpRequest),
+                                six.text_type(servers[-1].id))
+
+        self.mox.ReplayAll()
+
+        self.request.GET['marker'] = servers[-2].id
+        params = "=".join([tables.InstancesTable._meta.pagination_param,
+                           servers[page_size - 1].id])
+        url = "?".join([reverse('horizon:project:instances:index'),
+                        params])
+        formData = {'action': 'instances__suspend__%s' % servers[-1].id}
+
+        self.client.post(url, formData)
+
     @helpers.create_stubs({api.nova: ('server_suspend',
                                       'server_list',
                                       'flavor_list',

openstack_dashboard/dashboards/project/instances/views.py

@@ -53,6 +53,7 @@ from openstack_dashboard.dashboards.project.instances \
     import tabs as project_tabs
 from openstack_dashboard.dashboards.project.instances \
     import workflows as project_workflows
+from openstack_dashboard.views import get_url_with_pagination
 
 LOG = logging.getLogger(__name__)
 
@@ -322,7 +323,12 @@ class DetailView(tabs.TabView):
                                          args=[instance.image['id']])
         instance.volume_url = self.volume_url
         context["instance"] = instance
-        context["url"] = reverse(self.redirect_url)
+        context["url"] = get_url_with_pagination(
+            self.request,
+            project_tables.InstancesTable._meta.pagination_param,
+            project_tables.InstancesTable._meta.prev_pagination_param,
+            self.redirect_url)
+
         context["actions"] = self._get_actions(instance)
         return context
 

openstack_dashboard/test/views.py

@@ -0,0 +1,46 @@
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+import six
+
+from openstack_dashboard.test import helpers as test
+from openstack_dashboard import views
+
+
+class DashboardViewsTest(test.TestCase):
+    def test_get_url_with_pagination(self):
+        req = self.request
+        url_string = 'horizon:project:instances:index'
+        url = views.get_url_with_pagination(req, None, None, url_string, None)
+        self.assertEqual(six.text_type('/project/instances/'), url)
+
+    def test_get_url_with_pagination_with_if(self):
+        req = self.request
+        url_string = 'horizon:project:instances:detail'
+        url = views.get_url_with_pagination(req, None, None, url_string, 'id')
+        self.assertEqual(six.text_type('/project/instances/id/'), url)
+
+    def test_get_url_with_pagination_next(self):
+        req = self.request
+        url_string = 'horizon:project:instances:index'
+        req.GET.update({'next': 'id'})
+        url = views.get_url_with_pagination(
+            req, 'next', None, url_string, None)
+        self.assertEqual(six.text_type('/project/instances/?next=id'), url)
+
+    def test_get_url_with_pagination_prev(self):
+        req = self.request
+        url_string = 'horizon:project:instances:index'
+        req.GET.update({'prev': 'id'})
+        url = views.get_url_with_pagination(
+            req, None, 'prev', url_string, None)
+        self.assertEqual(six.text_type('/project/instances/?prev=id'), url)

openstack_dashboard/views.py

@@ -13,8 +13,10 @@
 #    under the License.
 
 from django.conf import settings
+from django.core import urlresolvers
 from django import shortcuts
 import django.views.decorators.vary
+from six.moves import urllib
 
 import horizon
 from horizon import base
@@ -59,3 +61,22 @@ def splash(request):
     if MESSAGES_PATH:
         notifications.process_message_notification(request, MESSAGES_PATH)
     return response
+
+
+def get_url_with_pagination(request, marker_name, prev_marker_name, url_string,
+                            object_id=None):
+    if object_id:
+        url = urlresolvers.reverse(url_string, args=(object_id,))
+    else:
+        url = urlresolvers.reverse(url_string)
+    marker = request.GET.get(marker_name, None)
+    if marker:
+        return "{}?{}".format(url,
+                              urllib.parse.urlencode({marker_name: marker}))
+
+    prev_marker = request.GET.get(prev_marker_name, None)
+    if prev_marker:
+        return "{}?{}".format(url,
+                              urllib.parse.urlencode({prev_marker_name:
+                                                      prev_marker}))
+    return url