+ def get_db_prep_value(self, value):
+ """Returns field's value prepared for interacting with the database
+ backend.
+
+ Used by the default implementations of ``get_db_prep_save``and
+ `get_db_prep_lookup```
+ """
+ return value.replace('\\', '\\5c')
+ .replace('*', '\\2a')
+ .replace('(', '\\28')
+ .replace(')', '\\29')
+ .replace('\0', '\\00')
+