move BitumenParameter to data, add function to read all parameters

src/paveit/datamodels/material.py

@@ -1,13 +1,13 @@
 import datetime
 from re import T
 
+from bson.json_util import loads
 from mongoengine import *
 
+from .enumeration import BitumenCategoryEnum, NormEnum
+from .norm_specification import DeliveryGrain, EnumerateBase
 from .project import Project
 from .usermanagement import Organisation, User
-from .norm_specification import DeliveryGrain, EnumerateBase
-from .enumeration import BitumenCategoryEnum, NormEnum
-
 
 
 class Material(Document):
@@ -82,6 +82,20 @@ class Bitumen(Material):
     parameter = ReferenceField(Material)
     limits = LazyReferenceField(EnumerateBase)
     
+    def to_dict(self):
+        # convert data to dict
+        data = self.to_mongo().to_dict()
+
+        # Laden und hinzufügen der referenzierten Daten
+        if self.parameter:
+            data['parameter'] = self.parameter.to_mongo().to_dict()
+            
+            
+        print(data)
+
+        # Konvertieren Sie das BSON-Dokument in ein Python-Dict
+        return data
+    
 
 
 class Bitumenemulsion(Material):