fix inet types converter, extend types in search

flask_admin/contrib/sqla/form.py

@@ -334,13 +334,15 @@ class AdminModelConverter(ModelConverterBase):
         field_args['validators'].append(validators.NumberRange(min=1901, max=2155))
         return fields.StringField(**field_args)
 
-    @converts('databases.postgres.PGInet', 'dialects.postgresql.base.INET')
+    @converts('sqlalchemy.dialects.postgresql.base.INET',
+              'databases.postgres.PGInet', 'dialects.postgresql.base.INET')
     def conv_PGInet(self, field_args, **extra):
         field_args.setdefault('label', u'IP Address')
         field_args['validators'].append(validators.IPAddress())
         return fields.StringField(**field_args)
 
-    @converts('dialects.postgresql.base.MACADDR')
+    @converts('sqlalchemy.dialects.postgresql.base.MACADDR',
+              'dialects.postgresql.base.MACADDR')
     def conv_PGMacaddr(self, field_args, **extra):
         field_args.setdefault('label', u'MAC Address')
         field_args['validators'].append(validators.MacAddress())

flask_admin/contrib/sqla/view.py

@@ -7,6 +7,8 @@ from sqlalchemy.orm import joinedload, aliased
 from sqlalchemy.sql.expression import desc, ColumnElement
 from sqlalchemy import Boolean, Table, func, or_
 from sqlalchemy.exc import IntegrityError
+from sqlalchemy.sql.expression import cast
+from sqlalchemy import Unicode
 
 from flask import flash
 
@@ -828,11 +830,11 @@ class ModelView(BaseModelView):
                                                                                    inner_join=False)
 
                 column = field if alias is None else getattr(alias, field.key)
-                filter_stmt.append(column.ilike(stmt))
+                filter_stmt.append(cast(column, Unicode).ilike(stmt))
 
                 if count_filter_stmt is not None:
                     column = field if count_alias is None else getattr(count_alias, field.key)
-                    count_filter_stmt.append(column.ilike(stmt))
+                    count_filter_stmt.append(cast(column, Unicode).ilike(stmt))
 
             query = query.filter(or_(*filter_stmt))