# If ir.attachment contained any data before document is installed, preserve
# the data, don't drop the column!
'db_datas': fields.binary('Data', oldname='datas'),
- 'datas': fields.function(_data_get, method=True, fnct_inv=_data_set, string='File Content', type="binary", nodrop=True),
+ 'datas': fields.function(_data_get, fnct_inv=_data_set, string='File Content', type="binary", nodrop=True),
# Fields of document:
'user_id': fields.many2one('res.users', 'Owner', select=1),