(Enhancement Proposal) alias infromation from MDX View

TM1py/Objects/MDXView.py

@@ -15,13 +15,39 @@ class MDXView(View):
         IMPORTANT. MDXViews can't be seen through the old TM1 clients (Archict, Perspectives). They do exist though!
     """
 
-    def __init__(self, cube_name: str, view_name: str, MDX: str):
+    def __init__(self, cube_name: str, view_name: str, MDX: str, meta: dict = {}):
         View.__init__(self, cube_name, view_name)
         self._mdx = MDX
+        self._aliases = meta.get('Aliases', {})
 
     @property
     def mdx(self):
         return self._mdx
+
+    @property
+    def aliases(self) -> dict[str, str]:
+        """ Returns a dictionary with aliases for dimensions in the MDX view 
+        self._aliases =  {
+            '[Account].[Account]': 'Description',
+            '[Cost Center].[Cost Center]': 'Full Name',
+        }
+        return: 
+            {
+                'Account': 'Description',
+                'Cost Center': 'Full Name'
+            }
+        """
+        dimension_hierarchy_pattern = re.compile(r'\[(?P<dimension>[^\]]+)\]\.\[(?P<hierarchy>[^\]]+)\]')
+        alias_pool = {}
+        for dimension_hierarchy_tuple, alias in self._aliases.items():
+            pattern_matches = dimension_hierarchy_pattern.search(dimension_hierarchy_tuple)
+            if not pattern_matches:
+                continue 
+            dimension = pattern_matches.group('dimension')
+            hierarchy = pattern_matches.group('hierarchy')
+            alias_pool[dimension] = alias
+
+        return alias_pool
 
     @mdx.setter
     def mdx(self, value: str):
@@ -78,7 +104,9 @@ def from_json(cls, view_as_json: str, cube_name: Optional[str] = None) -> 'MDXVi
     def from_dict(cls, view_as_dict: Dict, cube_name: str = None) -> 'MDXView':
         return cls(cube_name=view_as_dict['Cube']['Name'] if not cube_name else cube_name,
                    view_name=view_as_dict['Name'],
-                   MDX=view_as_dict['MDX'])
+                   MDX=view_as_dict['MDX'],
+                   Meta=view_as_dict.get('Meta', {})
+                   )
 
     def construct_body(self) -> str:
         mdx_view_as_dict = collections.OrderedDict()

TM1py/Services/ViewService.py

@@ -67,7 +67,7 @@ def get(self, cube_name: str, view_name: str, private: bool = False, **kwargs) -
         response = self._rest.GET(url, **kwargs)
         view_as_dict = response.json()
         if "MDX" in view_as_dict:
-            return MDXView(cube_name=cube_name, view_name=view_name, MDX=view_as_dict["MDX"])
+            return MDXView(cube_name=cube_name, view_name=view_name, MDX=view_as_dict["MDX"], meta=view_as_dict.get("Meta", {}))
         else:
             return self.get_native_view(cube_name=cube_name, view_name=view_name, private=private)
 

Tests/MDXView_test.py

@@ -1,6 +1,9 @@
 import unittest
 
 from TM1py import MDXView
+from unittest.mock import Mock, patch 
+from TM1py import ViewService
+import json 
 
 
 class TestMDXView(unittest.TestCase):
@@ -13,6 +16,8 @@ class TestMDXView(unittest.TestCase):
     FROM [c1]
     WHERE ([d3].[d3].[e1], [d4].[e1], [d5].[h1].[e1])
     """
+
+    rest_response = '''{"@odata.context":"../$metadata#Cubes(\'Cube\')/Views/ibm.tm1.api.v1.MDXView(Cube,LocalizedAttributes)/$entity","@odata.type":"#ibm.tm1.api.v1.MDXView","Name":"MDX View","Attributes":{"Caption":"MDX View"},"MDX":"SELECT {[Dim B].[Dim B].Members} PROPERTIES [Dim B].[Dim B].[Description B]  ON COLUMNS , {[Dim A].[Dim A].Members} PROPERTIES [Dim A].[Dim A].[Description]  ON ROWS FROM [Cube] ","Cube":{"Name":"Cube","Rules":null,"DrillthroughRules":null,"LastSchemaUpdate":"2025-07-26T10:53:18.870Z","LastDataUpdate":"2025-07-26T10:53:18.870Z","Attributes":{"Caption":"Cube"}},"LocalizedAttributes":[],"FormatString":"0.#########"\n,"Meta":{"Aliases":{"[Dim A].[Dim A]":"Description","[Dim B].[Dim B]":"Description B"},"ContextSets":{},"ExpandAboves":{}}\n}'''
 
     def setUp(self) -> None:
         self.view = MDXView(
@@ -68,3 +73,20 @@ def test_substitute_title_value_error(self):
         with self.assertRaises(ValueError) as error:
             self.view.substitute_title(dimension="d6", hierarchy="d6", element="e2")
             print(error)
+
+    @patch('TM1py.Services.RestService.RestService')
+    def test_get_with_retrieving_meta_from_response(self, mock_rest):
+        mock_response_dict = json.loads(self.rest_response)
+        mock_response = Mock()
+        mock_response.json.return_value = mock_response_dict
+        mock_rest.GET.return_value = mock_response
+
+        service = ViewService(mock_rest)
+        view = service.get('Cube', 'MDX View', private=False)
+        self.assertIsInstance(view, MDXView)
+        self.assertDictEqual(view.aliases, {"Dim A": "Description", "Dim B": "Description B"})
+
+    def test_from_json_with_Meta_key(self):
+        view = MDXView.from_json(view_as_json=self.rest_response, cube_name='Cube')
+        self.assertIsInstance(view, MDXView)
+        self.assertDictEqual(view.aliases, {"Dim A": "Description", "Dim B": "Description B"})