fixed hybrid property detection and made it robust.

flask_admin/contrib/sqla/tools.py

@@ -2,6 +2,7 @@ from sqlalchemy import tuple_, or_, and_
 from sqlalchemy.sql.operators import eq
 from sqlalchemy.exc import DBAPIError
 from sqlalchemy.orm.attributes import InstrumentedAttribute
+from sqlalchemy_utils import get_hybrid_properties
 
 from flask_admin._compat import filter_list, string_types
 from flask_admin.tools import iterencode, iterdecode, escape
@@ -170,3 +171,7 @@ def get_field_with_path(model, name):
                 path.append(column.table)
 
     return attr, path
+
+
+def is_hybrid_property(model, attr_name):
+    return attr_name in get_hybrid_properties(model)

flask_admin/contrib/sqla/view.py

@@ -2,7 +2,6 @@ import logging
 import warnings
 import inspect
 
-from sqlalchemy.ext.hybrid import HYBRID_PROPERTY
 from sqlalchemy.orm.attributes import InstrumentedAttribute
 from sqlalchemy.orm import joinedload, aliased
 from sqlalchemy.sql.expression import desc
@@ -604,7 +603,7 @@ class ModelView(BaseModelView):
 
             return filters
         else:
-            is_hybrid_property = hasattr(attr, 'descriptor') and attr.descriptor.extension_type == HYBRID_PROPERTY
+            is_hybrid_property = tools.is_hybrid_property(self.model, name)
             if is_hybrid_property:
                 column = attr
             else: