"""allways executed before all others in server migration

it should only include low level schema changes

:organization: Logilab

:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.

:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr

:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses

"""

applcubicwebversion, cubicwebversion = versions_map['cubicweb']

if applcubicwebversion < (3, 4, 0) and cubicwebversion >= (3, 4, 0):

    from cubicweb import RepositoryError

    from cubicweb.server.hooks import uniquecstrcheck_before_modification

    session.set_shared_data('do-not-insert-cwuri', True)

    repo.hm.unregister_hook(uniquecstrcheck_before_modification, 'before_add_entity', '')

    repo.hm.unregister_hook(uniquecstrcheck_before_modification, 'before_update_entity', '')

    add_relation_type('cwuri')

    base_url = session.base_url()

    # use an internal session since some entity might forbid modifications to admin

    isession = repo.internal_session()

    for eid, in rql('Any X', ask_confirm=False):

        type, source, extid = session.describe(eid)

        if source == 'system':

            isession.execute('SET X cwuri %(u)s WHERE X eid %(x)s',

                             {'x': eid, 'u': base_url + u'eid/%s' % eid})

    isession.commit()

    repo.hm.register_hook(uniquecstrcheck_before_modification, 'before_add_entity', '')

    repo.hm.register_hook(uniquecstrcheck_before_modification, 'before_update_entity', '')

    session.set_shared_data('do-not-insert-cwuri', False)

if applcubicwebversion < (3, 2, 2) and cubicwebversion >= (3, 2, 1):

    from base64 import b64encode

    for table in ('entities', 'deleted_entities'):

        for eid, extid in sql('SELECT eid, extid FROM %s WHERE extid is NOT NULL'

                              % table, ask_confirm=False):

            sql('UPDATE %s SET extid=%%(extid)s WHERE eid=%%(eid)s' % table,

                {'extid': b64encode(extid), 'eid': eid}, ask_confirm=False)

    checkpoint()

if applcubicwebversion < (3, 2, 0) and cubicwebversion >= (3, 2, 0):

    add_cube('card', update_database=False)