MAINT: Refactor and simplify adding of properties

src/caosadvancedtools/models/parser.py

@@ -325,30 +325,26 @@ class Parser(object):
             n = self._stringify(n)
 
             if isinstance(e, dict):
-                if "datatype" in e:
-                    if _get_listdatatype(e["datatype"]) is not None:
-                        self.model[ent_name].add_property(
-                            name=n,
-                            importance=importance,
-                            datatype=db.LIST(_get_listdatatype(e["datatype"])))
-                    else:
-                        self.model[ent_name].add_property(
-                            name=n,
-                            importance=importance,
-                            datatype=e["datatype"]
-                        )
+                if "datatype" in e and _get_listdatatype(e["datatype"]) is not None:
+                    datatype = db.LIST(_get_listdatatype(e["datatype"]))
                 else:
-                    self.model[ent_name].add_property(
-                        name=n,
-                        importance=importance
-                    )
+                    # ignore a possible e["datatype"] here if it's not a list
+                    # since it has been treated in the definition of the
+                    # property (entity) already
+                    datatype = None
                 if "value" in e:
-                    self.model[ent_name].get_property(n).value = e["value"]
+                    value = e["value"]
+                else:
+                    value = None
 
             else:
+                value = e
+                datatype = None
+
             self.model[ent_name].add_property(name=n,
-                                                  value=e,
-                                                  importance=importance)
+                                              value=value,
+                                              importance=importance,
+                                              datatype=datatype)
 
     def _inherit(self, name, prop, inheritance):
         if not isinstance(prop, list):