Implement delete host

Implemented delete host functionality.
Also added test case for delete host.

Partial-Implements: blueprint masakari-dashboard

Change-Id: I8265b4f1af7bb61d15d005ee3785895f678f7d10

masakaridashboard/api/api.py

@@ -146,3 +146,8 @@ def create_host(request, data):
 def get_host_list(request, segment_id, filters):
     """Returns host list."""
     return openstack_connection(request).hosts(segment_id, **filters)
+
+
+def delete_host(request, host_id, segment_id):
+    return openstack_connection(request).delete_host(
+        host_id, segment_id, False)

masakaridashboard/hosts/tables.py

@@ -12,9 +12,16 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from django.core.urlresolvers import reverse
 from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import ungettext_lazy
+
+from horizon import exceptions
 from horizon import tables
 
+from masakaridashboard.api import api
+
+
 HOST_FILTER_CHOICES = (
     ('failover_segment_id', _("Segment Id ="), True),
     ('type', _("Type ="), True),
@@ -28,6 +35,35 @@ class HostFilterAction(tables.FilterAction):
     filter_choices = HOST_FILTER_CHOICES
 
 
+class DeleteHost(tables.DeleteAction):
+    @staticmethod
+    def action_present(count):
+        return ungettext_lazy(
+            u"Delete Host",
+            u"Delete Hosts",
+            count
+        )
+
+    @staticmethod
+    def action_past(count):
+        return ungettext_lazy(
+            u"Deleted Host",
+            u"Deleted Hosts",
+            count
+        )
+
+    def delete(self, request, data):
+        row_data = data.split(',')
+        segment_uuid = row_data[1]
+        host_uuid = row_data[0]
+        try:
+            api.delete_host(request, host_uuid, segment_uuid)
+        except Exception:
+            msg = _('Unable to delete host.')
+            redirect = reverse('horizon:masakaridashboard:hosts:index')
+            exceptions.handle(self.request, msg, redirect=redirect)
+
+
 class HostTable(tables.DataTable):
 
     name = tables.Column('name', verbose_name=_("Name"))
@@ -50,4 +86,4 @@ class HostTable(tables.DataTable):
     class Meta(object):
         name = "host"
         verbose_name = _("Host")
-        table_actions = (HostFilterAction,)
+        table_actions = (HostFilterAction, DeleteHost)

masakaridashboard/hosts/tests.py

@@ -70,3 +70,26 @@ class HostTest(test.TestCase):
             mock.ANY,
             form_data
         )
+
+    def test_delete_ok(self):
+        host = self.masakari_host.list()[0]
+        data = {'object_ids': host.uuid + ',' + host.failover_segment_id,
+                'action': 'host__delete'}
+        with mock.patch(
+                'masakaridashboard.api.api.segment_list',
+                return_value=[self.masakari_segment.first(
+                )]), mock.patch(
+                'masakaridashboard.api.api.get_host_list',
+                return_value=self.masakari_host.list()), mock.patch(
+                'masakaridashboard.api.api.delete_host',
+                return_value=None
+        ) as mocked_delete:
+            res = self.client.post(INDEX_URL, data)
+
+        self.assertNoFormErrors(res)
+        self.assertRedirectsNoFollow(res, INDEX_URL)
+        mocked_delete.assert_called_once_with(
+            mock.ANY,
+            host.uuid,
+            host.failover_segment_id,
+        )