use OpenBisObject as abstract class

pybis/src/python/pybis/tag.py

@@ -3,52 +3,24 @@ from .utils import VERBOSE
 from .attribute import AttrHolder
 import json
 
-class Tag(OpenBisObject):
+class Tag(
+    OpenBisObject,
+    entity='tag',
+    single_item_method_name='get_tag'
+):
     """ 
     """
 
-    def __init__(self, openbis_obj, data=None, **kwargs):
-        self.__dict__['entity'] = 'Tag'
-        self.__dict__['openbis'] = openbis_obj
-        self.__dict__['a'] = AttrHolder(openbis_obj, self.entity)
-
-        if data is not None:
-            self._set_data(data)
-
-        if kwargs is not None:
-            for key in kwargs:
-                setattr(self, key, kwargs[key])
-
     def __dir__(self):
         return [
-            'code','description',
             'get_samples()',
             'get_experiments()',
             'get_materials()',
-            'owner()',
-        ]
-
-    def delete(self, reason='no reason'):
-        self.openbis.delete_entity(entity=self.entity,id=self.permId, reason=reason)
-        if VERBOSE: print("Tag {} successfully deleted.".format(self.permId))
-
-    def save(self):
-
-        if self.is_new:
-            request = self._new_attrs()
-            resp = self.openbis._post_request(self.openbis.as_v3, request)
-
-            if VERBOSE: print("Tag successfully created.")
-            new_tag_data = self.openbis.get_tag(resp[0]['permId'], only_data=True)
-            self._set_data(new_tag_data)
-            return self
+            'get_owner()',
+        ] + super().__dir__()
 
-        else:
-            request = self._up_attrs()
-            self.openbis._post_request(self.openbis.as_v3, request)
-            if VERBOSE: print("Tag successfully updated.")
-            new_tag_data = self.openbis.get_tag(self.permId, only_data=True)
-            self._set_data(new_tag_data)
+    def get_owner(self):
+        return self.openbis.get_person(self.owner)
 
     def get_samples(self):
         return self.openbis.get_samples(tags=[self.code])