diff --git a/cmdb-api/api/lib/cmdb/attribute.py b/cmdb-api/api/lib/cmdb/attribute.py
index 2049b74d..2fc9be63 100644
--- a/cmdb-api/api/lib/cmdb/attribute.py
+++ b/cmdb-api/api/lib/cmdb/attribute.py
@@ -108,7 +108,8 @@ def get_choice_values(cls, attr_id, value_type, choice_web_hook, choice_other,
             return []
         choice_values = choice_table.get_by(fl=["value", "option"], attr_id=attr_id)
 
-        return [[ValueTypeMap.serialize[value_type](choice_value['value']), choice_value['option']]
+        return [[ValueTypeMap.serialize[value_type](choice_value['value']), choice_value['option'] or
+                 {"label": ValueTypeMap.serialize[value_type](choice_value['value'])}]
                 for choice_value in choice_values]
 
     @staticmethod
@@ -140,7 +141,7 @@ def get_enum_map(cls, _attr_id, _attr=None):
         attr = AttributeCache.get(_attr_id) if _attr_id else _attr
         if attr and attr.is_choice:
             choice_values = cls.get_choice_values(attr.id, attr.value_type, None, None)
-            return {i[0]: i[1]['label'] for i in choice_values if i[1].get('label')}
+            return {i[0]: i[1]['label'] for i in choice_values if i[1] and i[1].get('label')}
 
         return {}
 
diff --git a/cmdb-api/api/lib/cmdb/ci_type.py b/cmdb-api/api/lib/cmdb/ci_type.py
index 7cb29a78..d93dfb65 100644
--- a/cmdb-api/api/lib/cmdb/ci_type.py
+++ b/cmdb-api/api/lib/cmdb/ci_type.py
@@ -524,7 +524,14 @@ def get_all_attributes(type_id):
         for _type_id in parent_ids + [type_id]:
             result.extend(CITypeAttributesCache.get2(_type_id))
 
-        return result
+        attr_ids = set()
+        result2 = []
+        for i in result:
+            if i[1].id not in attr_ids:
+                result2.append(i)
+                attr_ids.add(i[1].id)
+
+        return result2
 
     @classmethod
     def get_attr_names_by_type_id(cls, type_id):
diff --git a/cmdb-api/api/lib/cmdb/preference.py b/cmdb-api/api/lib/cmdb/preference.py
index de01a5b0..7d9aad58 100644
--- a/cmdb-api/api/lib/cmdb/preference.py
+++ b/cmdb-api/api/lib/cmdb/preference.py
@@ -384,14 +384,22 @@ def get_search_option(**kwargs):
     def add_search_option(**kwargs):
         kwargs['uid'] = current_user.uid
 
-        existed = PreferenceSearchOption.get_by(uid=current_user.uid,
-                                                name=kwargs.get('name'),
-                                                prv_id=kwargs.get('prv_id'),
-                                                ptv_id=kwargs.get('ptv_id'),
-                                                type_id=kwargs.get('type_id'),
-                                                )
-        if existed:
-            return abort(400, ErrFormat.preference_search_option_exists)
+        if kwargs['name'] in ('__recent__', '__favor__'):
+            if kwargs['name'] == '__recent__':
+                for i in PreferenceSearchOption.get_by(
+                        only_query=True, name=kwargs['name'], uid=current_user.uid).order_by(
+                    PreferenceSearchOption.id.desc()).offset(20):
+                    i.delete()
+
+        else:
+            existed = PreferenceSearchOption.get_by(uid=current_user.uid,
+                                                    name=kwargs.get('name'),
+                                                    prv_id=kwargs.get('prv_id'),
+                                                    ptv_id=kwargs.get('ptv_id'),
+                                                    type_id=kwargs.get('type_id'),
+                                                    )
+            if existed:
+                return abort(400, ErrFormat.preference_search_option_exists)
 
         return PreferenceSearchOption.create(**kwargs)