Fix AttributeError for "lang" on repo/client connections
This is a regression introduced by b48020a80dc3, which removed call to
set_language from the `req._set_user` method. This is fine, but we still want a
language on connections, so we've to handle it if necesary in
Connection.__enter__ (i.e. once connection is properly open).
When using pyramid front-end, which has a users cache, we've to cache its
language as well because we must not access its preferred_language method since
it's not bound to a proper connection.
"""This module compare the Schema on the file system to the one in the database"""
from cStringIO import StringIO
from cubicweb.web.schemaviewer import SchemaViewer
from logilab.common.ureports import TextWriter
import difflib
viewer = SchemaViewer()
layout_db = viewer.visit_schema(schema, display_relations=True)
layout_fs = viewer.visit_schema(fsschema, display_relations=True)
writer = TextWriter()
stream_db = StringIO()
stream_fs = StringIO()
writer.format(layout_db, stream=stream_db)
writer.format(layout_fs, stream=stream_fs)
stream_db.seek(0)
stream_fs.seek(0)
db = stream_db.getvalue().splitlines()
fs = stream_fs.getvalue().splitlines()
open('db_schema.txt', 'w').write(stream_db.getvalue())
open('fs_schema.txt', 'w').write(stream_fs.getvalue())
#for diff in difflib.ndiff(fs, db):
# print diff