What is the best way to utilize webpy framework/api to inject custom
business validation / success or failure messages? For instance we
want to maybe query a database as part of our validation and we want
to put a custom error message if the validation fails.
- Using site layout templates
- Using web.form
- Using web.session
In the following code snippet is an example of what we're doing:
{code}
...
class login:
def GET(self):
form = loginform()
return render.login('', cfg.getversion(), None,
cfg.allowedSubTrees, form)
def POST(self):
form = loginform()
if not form.validates():
return render.login('', cfg.getversion(), None,
cfg.allowedSubTrees, form)
else:
print "Grrreat success! username: %s, password: %s,
usertree: %s" % (form.d.username, form['password'].value,
form.d.usertree)
d = DataService()
validuser = d.login_bind(form.d.username, form.d.password,
form.d.usertree)
if not validuser:
print "LOGIN FAILED -- return to login page with error
message"
return render.login('', cfg.getversion(), None,
cfg.allowedSubTrees, form)
print "LOGIN SUCCESSFULL"
{code}
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