[repository] #1460066: backport datafeed cube as cubicweb source * add some attributes to CWSource to handle this kind of source (not natural to put everything in 'config' string). Adding a CWSource subclass has been attempted then rollbacked because it adds pain to handle multi-sources planning and it introduce an ambiguity on a generic relation (cw_source), which may be a penalty in multiple case * data feed sources are a new kind of source, namely 'copy based', which have no effect on the query planner * a data feed source is associated to a list of url and a parser (appobjects in the 'parsers' registry * entities imported by a data feed have cwuri set to their url on the distant site, their cw_source relation point to the data feed source, though their source stored in the entities table (returned by cw_metainformation) is their physical source, hence 'system'

from base64 import b64decode, b64encode
try:
    uri, newdn = __args__
except ValueError:
    print 'USAGE: cubicweb-ctl shell <instance> ldap_change_base_dn.py -- <ldap source uri> <new dn>'
    print
    print 'you should not have updated your sources file yet'

olddn = repo.config.sources()[uri]['user-base-dn']

assert olddn != newdn

raw_input("Ensure you've stopped the instance, type enter when done.")

for eid, extid in sql("SELECT eid, extid FROM entities WHERE source='%s'" % uri):
    olduserdn = b64decode(extid)
    newuserdn = olduserdn.replace(olddn, newdn)
    if newuserdn != olduserdn:
        print olduserdn, '->', newuserdn
        sql("UPDATE entities SET extid='%s' WHERE eid=%s" % (b64encode(newuserdn), eid))

commit()

print 'you can now update the sources file to the new dn and restart the instance'