I want to forbid users being able to submit duplicate urls into the
database.
Right now my approach is:
db.url.URL.requires=[IS_URL(error_message='URL Error'),
IS_NOT_IN_DB(db, 'url.URL',error_message='Dupilcated
URL')]
It covers the case for with "http" and without "http".
For example, if www.123.com is already in database, then user could not
submit http://www.123.com.
But this approach does NOT cover the case with "https", i.e. the user still
could submit https://www.123.com.
Is there anyway to prevent such duplication?
I think eliminating the "http"/"https" ,if any, in urls before calling
SQLFORM().process(). In such way, the urls in database are all without
"http"/"https". But I don't know how to edit user input before calling
SQLFORM().process().
Right now my code is
url_form=SQLFORM(db.url).process()
Any ideas?
Thank you!
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