Implemented Django style filtering

Closes SAP#113

Signed-off-by: Jakub Filak <[email protected]>

Author: bartonip

CHANGELOG.md

@@ -6,6 +6,32 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+### Added
+- Specify PATCH, PUT, or MERGE method for EntityUpdateRequest - Barton Ip
+- Add a Service wide configuration (e.g. http.update\_method) - Jakub Filak
+- <, <=, >, >= operators on GetEntitySetFilter - Barton Ip
+- Django style filtering - Barton Ip
+
+### Fixed
+- URL encode $filter contents - Barton Ip
+
+## [1.5.0]
+
+### Added
+- support for Edm.Float - Jakub Filak
+
+### Changed
+- handle GET EntitySet payload without the member results - Jakub Filak
+- both Literal and JSON DateTimes has Timezone set to UTC - Jakub Filak
+
+### Fixed
+- removed superfluous debug print when parsing FunctionImports from metadata - Jakub Filak
+- property 'Nullable' attributes are correctly parsed and respected - Vasilii Khomutov
+- use correct type of deserialization of Literal (URL) structure values - Jakub Filak
+- null values are correctly handled - Jakub Filak
+
+## [1.4.0]
+
 ### Added
 - Client can be created from local metadata - Jakub Filak
 - support all standard EDM schema versions - Jakub Filak

docs/usage/querying.rst

@@ -66,6 +66,36 @@ Print unique identification (Id) of all employees with name John Smith:
         print(smith.EmployeeID)
 
 
+Get entities matching a filter in ORM style
+---------------------------------------------------
+
+Print unique identification (Id) of all employees with name John Smith:
+
+.. code-block:: python
+
+    from pyodata.v2.service import GetEntitySetFilter as esf
+
+    smith_employees_request = northwind.entity_sets.Employees.get_entities()
+    smith_employees_request = smith_employees_request.filter(FirstName="John", LastName="Smith")
+    for smith in smith_employees_request.execute():
+        print(smith.EmployeeID)
+
+
+Get entities matching a complex filter in ORM style
+---------------------------------------------------
+
+Print unique identification (Id) of all employees with name John Smith:
+
+.. code-block:: python
+
+    from pyodata.v2.service import GetEntitySetFilter as esf
+
+    smith_employees_request = northwind.entity_sets.Employees.get_entities()
+    smith_employees_request = smith_employees_request.filter(FirstName__contains="oh", LastName__startswith="Smi")
+    for smith in smith_employees_request.execute():
+        print(smith.EmployeeID)
+
+
 Get a count of entities
 -----------------------
 

pyodata/v2/model.py

@@ -1479,6 +1479,9 @@ def proprty(self, property_name):
     def proprties(self):
         return list(self._properties.values())
 
+    def has_proprty(self, proprty_name):
+        return proprty_name in self._properties
+
     @classmethod
     def from_etree(cls, type_node, config: Config):
         name = type_node.get("Name")