Fix model diffing to be compatible with both 1.8 and 1.11

diff --git a/pgweb/util/signals.py b/pgweb/util/signals.py
index 79ce509f2c602e83291b9d607ee5c63116c7b1b0..07742219b142b87b832d15ef7f1e005a14f1fbf8 100644 (file)
--- a/pgweb/util/signals.py
+++ b/pgweb/util/signals.py
@@ -52,7 +52,7 @@ def _get_all_notification_fields(obj):
 def _get_attr_value(obj, fieldname):
        # see if this is a Many-to-many field. If yes, we want to print
        # it out as a pretty list
-       if isinstance(obj._meta.get_field_by_name(fieldname)[0], models.ManyToManyField):
+       if isinstance(obj._meta.get_field(fieldname), models.ManyToManyField):
                # XXX: Changes to ManyToMany fields can't be tracked here :(
                #      For now, we have no good way to deal with it so, well, don't.
                #      (trying to get the value will return None for it)