Also, note that requests is a third-party library, so you'll have to install it first. Also, keep in mind that when a URL is submitted for validation, there will be some delay, because your server will then have to make a request for the URL. If you've got lots of traffic, this could make it difficult to serve lots of simultaneous requests.
Anthony On Wednesday, August 15, 2012 1:25:29 PM UTC-4, rochacbruno wrote: > > I would use something like this: > > *import requests* > > class IS_VERIFIED_URL(object): > def __init__(self, error_message="url does not exist!"): > self.error_message = error_message > > def __call__(self, url): > error = None > *response = requests.get(url)* > if *response.status_code != 200*: > error = self.error_message > return (url, error) > > So in FORM, MODEL or SQLFORM > > <db.table|INPUT>.requires = IS_VERIFIED_URL() > > > http://rochacbruno.com.br/custom-validator-for-web2py-forms/ > > > *Bruno Cezar Rocha** - @rochacbruno* > [email protected] <javascript:> | Mobile: +55 (11) 99210-8821 > www.CursoDePython.com.br | www.rochacbruno.com.br > Blog: Open links which points outside your own site in a new > window<http://rochacbruno.com.br/open-links-which-points-outside-your-own-site-in-a-new-window/> > Get a signature like this. > <http://r1.wisestamp.com/r/landing?promo=18&dest=http%3A%2F%2Fwww.wisestamp.com%2Femail-install%3Futm_source%3Dextension%26utm_medium%3Demail%26utm_campaign%3Dpromo_18> > Click > here.<http://r1.wisestamp.com/r/landing?promo=18&dest=http%3A%2F%2Fwww.wisestamp.com%2Femail-install%3Futm_source%3Dextension%26utm_medium%3Demail%26utm_campaign%3Dpromo_18> > > > > > On Wed, Aug 15, 2012 at 12:01 PM, Hojat Taheri > <[email protected]<javascript:> > > wrote: > >> in a shorten-er built by web2by i want to validate url's first, if it's >> not valid goes back to the first page with an error message. this is my >> code in controller (mvc arch.) but i don't get what's wrong..!! >> >> import urllib >> >> def index(): >> return dict() >> >> def random_maker(): >> >> >> url = request.vars.url >> try: >> urllib.urlopen(url) >> >> >> return dict(rand_url = ''.join(random.choice(string.ascii_uppercase + >> string.digits + string.ascii_lowercase) for x in range(6)), input_url=url) >> >> except IOError: >> return index() >> >> -- >> >> >> >> > > --
