def put(self, hash):
"""
Create an edit of a revision.
"""
user = auth(session, required=True)
parser = restful.reqparse.RequestParser()
parser.add_argument("document",type=str, required=True)
args = parser.parse_args()
parent = Revision.query.filter(and_(Revision.hash == hash, Revision.user == user)).first()
if parent != None:
revision = Revision()
revision.user = user
revision.parent = parent
revision.content = args.document
revision.size = len(revision.content)
revision.hash = hashlib.sha1(args.document).hexdigest()
revision.get_mimetype()
db.session.add(revision)
db.session.add(parent)
db.session.commit()
return revision.jsonify(), 201
return {}, 404
