[repository] ldap-feed source. Closes #2086984
datafeed based source which copy a subtree of the ldap directory
into the system database. Authentication still go through ldap though.
Pros:
* don't need temporary tables and such for multi-sources RQL queries execution
* much more flexible to enhance / configure behaviour (you simply have to
replace the parser)
* run better when ldap isn't reachable
Cons:
* no more 'on the fly' discovery of users (though a user authenticating
itself will be automatically added if it doesn't exist in the db yet)
* synchronization may be heavy if there are a lot of users
A new cw.server.ldaputils containing code in common between former ldapuser
and new ldapfeed sources has been introduced. Also ldapuser source now
uses url instead of custom host/protocol option so it looks like a datafeed
source (could be improved).
config['rql-cache-size'] = config['rql-cache-size'] * 10
add_entity_type('CWDataImport')
from cubicweb.schema import CONSTRAINTS, guess_rrqlexpr_mainvars
for rqlcstr in rql('Any X,XT,XV WHERE X is CWConstraint, X cstrtype XT, X value XV,'
'X cstrtype XT, XT name IN ("RQLUniqueConstraint","RQLConstraint","RQLVocabularyConstraint"),'
'NOT X value ~= ";%"').entities():
expression = rqlcstr.value
mainvars = guess_rrqlexpr_mainvars(expression)
yamscstr = CONSTRAINTS[rqlcstr.type](expression, mainvars)
rqlcstr.set_attributes(value=yamscstr.serialize())
print 'updated', rqlcstr.type, rqlcstr.value.strip()