3395 Add delete dao action

xivo_dao/resources/labels/dao.py

@@ -35,6 +35,11 @@ def get(label_id):
     return query.first()
 
 
+def delete(label):
+    Session.delete(label)
+    Session.flush()
+
+
 def search(**parameters):
     rows, total = label_search.search(Session, parameters)
     return SearchResult(total, rows)

xivo_dao/resources/labels/tests/test_dao.py

@@ -58,3 +58,13 @@ class TestLabelExist(DAOTestCase):
 
         assert_that(result[1][0].users_count, equal_to(1))
         assert_that(result, equal_to(expected))
+
+    def test_delete_label(self):
+        label_row = self.add_label()
+
+        label_dao.delete(label_row)
+
+        expected = SearchResult(total=0, items=[])
+        result = label_dao.search()
+
+        assert_that(result, equal_to(expected))