gistfile1.txt

def create_post(request):
    db = request.db
    cache = request.cache
    user = request.user

    # Schema
    schema = Schema({
        Required('body'): All(Coerce(unicode),
                              Length(min=5, max=3000, msg='A post is between 5 and 3000 characters.'),
                              StripWhitespace,
                              RemoveMultipleNewlines),
        Required('tag_categories'): All(Length(max=2),
                                    [{Required('id'): Coerce(int)}]),
        Optional('files', default=[]): [{Required('id'): Coerce(int)}],
        Optional('mobile', default=False): Boolean()
    })
    payload = schema(request.json)