From b33d25a0adf79957a0798fc729a6dedafcb03ece Mon Sep 17 00:00:00 2001
From: Adrian Sampson <adrian@radbox.org>
Date: Tue, 17 Nov 2015 14:39:40 -0800
Subject: [PATCH] --extra option can use any field

Not just the built-in fields.
---
 beetsplug/edit.py | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/beetsplug/edit.py b/beetsplug/edit.py
index 63cdef815..3cd014402 100644
--- a/beetsplug/edit.py
+++ b/beetsplug/edit.py
@@ -19,7 +19,6 @@ from __future__ import (division, absolute_import, print_function,
 
 from beets import plugins
 from beets import util
-from beets import library
 from beets import ui
 from beets.ui.commands import _do_query
 import subprocess
@@ -85,11 +84,9 @@ class EditPlugin(plugins.BeetsPlugin):
         )
         edit_command.parser.add_option(
             '-e', '--extra',
+            metavar='FIELD',
             action='append',
-            type='choice',
-            choices=library.Item.all_keys() +
-            library.Album.all_keys(),
-            help='add additional fields to edit',
+            help='edit this field also',
         )
         edit_command.parser.add_option(
             '--all',