gistfile1.py

#!/usr/bin/python
# (c)2011 Jason J. W. Williams - jasonjwwilliams@gmail.com
# Distributed under the BSD license.
from optparse import OptionParser
import sys, os, copy

parser = OptionParser()
parser.add_option("-i", "--instance-home", dest="instance_home",
                  help="Path to Zope-instance.")
parser.add_option("-s", "--software-home", dest="software_home",
                  help="Path to Zope-installed python. (/usr/lib/zope-2.9.3/lib/python)", 
                  default="/usr/lib/zope-2.9.3/lib/python")
parser.add_option("-d", "--data-file", dest="data_file",
                  help="Path to ZODB data file.")
parser.add_option("-o", "--object", dest="object",
                  help="Fully-qualified object to edit (e.g. Folder.file)")
parser.add_option("-p", "--property", dest="property",
                  help="Object property to edit ")
parser.add_option("-v", "--value", dest="value",
                  help="Value to set on property. (must be valid Python)")

args = parser.parse_args()[0]
if not (args.instance_home and args.data_file and args.object and args.property):
    print 'Incorrect usage, please run "zodb_modobj.py --help" to see correct usage'
    sys.exit(-1)

sys.path.append(args.software_home)
os.environ["SOFTWARE_HOME"] = args.software_home
os.environ["INSTANCE_HOME"] = args.instance_home

from ZODB.FileStorage import FileStorage
from ZODB.DB import DB
import transaction

storage = FileStorage(args.data_file)
db = DB(storage)
connection = db.open()
root = connection.root()
parent = root['Application']
obj = None
for leaf in args.object.split("."):
    obj = getattr(parent, leaf)
    parent = obj

if not args.value:
    prop = getattr(obj, args.property)
    print "Property Type: " + str(type(prop))
    print "Property Contents\n------\n"
    print dir(prop)
    print "Property Value: " + str(prop)
else:
    trans = transaction.get()
    print trans.status
    setattr(obj, args.property, eval(args.value)) 
    trans.commit()
    print id(root['Application'])
    print trans.status