Allow method to be specified in EntityModifyRequest

Signed-off-by: Jakub Filak <jakub.filak@sap.com>

pyodata/v2/service.py

@@ -512,13 +512,18 @@ class EntityModifyRequest(ODataHttpRequest):
        Call execute() to send the update-request to the OData service
        and get the modified entity."""
 
-    def __init__(self, url, connection, handler, entity_set, entity_key):
+    def __init__(self, url, connection, handler, entity_set, entity_key, method="PATCH"):
         super(EntityModifyRequest, self).__init__(url, connection, handler)
         self._logger = logging.getLogger(LOGGER_NAME)
         self._entity_set = entity_set
         self._entity_type = entity_set.entity_type
         self._entity_key = entity_key
 
+        if method.upper() not in ["PATCH", "PUT"]:
+            raise ValueError("Method must be either PATCH or PUT")
+
+        self._method = method
+
         self._values = {}
 
         # get all properties declared by entity type
@@ -531,7 +536,7 @@ def get_path(self):
 
     def get_method(self):
         # pylint: disable=no-self-use
-        return 'PATCH'
+        return self._method
 
     def get_body(self):
         # pylint: disable=no-self-use
@@ -1152,7 +1157,7 @@ def create_entity_handler(response):
         return EntityCreateRequest(self._service.url, self._service.connection, create_entity_handler, self._entity_set,
                                    self.last_segment)
 
-    def update_entity(self, key=None, **kwargs):
+    def update_entity(self, key=None, method="PATCH", **kwargs):
         """Updates an existing entity in the given entity-set."""
 
         def update_entity_handler(response):
@@ -1170,7 +1175,7 @@ def update_entity_handler(response):
         self._logger.info('Updating entity %s for key %s and args %s', self._entity_set.entity_type.name, key, kwargs)
 
         return EntityModifyRequest(self._service.url, self._service.connection, update_entity_handler, self._entity_set,
-                                   entity_key)
+                                   entity_key, method=method)
 
     def delete_entity(self, key: EntityKey = None, **kwargs):
         """Delete the entity"""

tests/test_service_v2.py

@@ -658,6 +658,66 @@ def test_update_entity_with_entity_key(service):
     assert query.get_path() == "TemperatureMeasurements(Sensor='sensor1',Date=datetime'2017-12-24T18:00:00')"
 
 
+def test_update_entity_with_put_method_specified(service):
+    """Make sure the method update_entity handles correctly when PUT method is specified"""
+
+    # pylint: disable=redefined-outer-name
+
+
+    key = EntityKey(
+        service.schema.entity_type('TemperatureMeasurement'),
+        Sensor='sensor1',
+        Date=datetime.datetime(2017, 12, 24, 18, 0))
+
+    query = service.entity_sets.TemperatureMeasurements.update_entity(key, method="PUT")
+    assert query.get_method() == "PUT"
+
+
+def test_update_entity_with_patch_method_specified(service):
+    """Make sure the method update_entity handles correctly when PATCH method is specified"""
+
+    # pylint: disable=redefined-outer-name
+
+
+    key = EntityKey(
+        service.schema.entity_type('TemperatureMeasurement'),
+        Sensor='sensor1',
+        Date=datetime.datetime(2017, 12, 24, 18, 0))
+
+    query = service.entity_sets.TemperatureMeasurements.update_entity(key, method="PATCH")
+    assert query.get_method() == "PATCH"
+
+
+def test_update_entity_with_no_method_specified(service):
+    """Make sure the method update_entity handles correctly when no method is specified"""
+
+    # pylint: disable=redefined-outer-name
+
+
+    key = EntityKey(
+        service.schema.entity_type('TemperatureMeasurement'),
+        Sensor='sensor1',
+        Date=datetime.datetime(2017, 12, 24, 18, 0))
+
+    query = service.entity_sets.TemperatureMeasurements.update_entity(key)
+    assert query.get_method() == "PATCH"
+
+
+def test_update_entity_with_wrong_method_specified(service):
+    """Make sure the method update_entity raises ValueError when wrong method is specified"""
+
+    # pylint: disable=redefined-outer-name
+
+
+    key = EntityKey(
+        service.schema.entity_type('TemperatureMeasurement'),
+        Sensor='sensor1',
+        Date=datetime.datetime(2017, 12, 24, 18, 0))
+
+    with pytest.raises(ValueError):
+        service.entity_sets.TemperatureMeasurements.update_entity(key, method="DELETE")
+
+
 def test_get_entity_with_entity_key_and_other_params(service):
     """Make sure the method update_entity handles correctly the parameter key which is EntityKey"""