Can't chose edit widget "Enumeration" for empty postgres tables

[anitagraser]

It's not possible to chose an edit widget of type "Enumeration" as long as the underlying table is empty.

You can test using:

CREATE TYPE rainbow AS ENUM ('red', 'orange', 'yellow', 'green', 'blue', 'purple');
CREATE TABLE teste
(
rain rainbow,
the_geom geometry
);

When one line is added, everything works as expected.

According to user cremat0rio on the related forum topic (​http://forum.qgis.org/viewtopic.php?f=2&t=7834) it's possible to use the following line to populate the enum widget:

SELECT enum_range(null::rainbow);

[jef]

already fixed in r15048.