On Apr 1, 5:04 pm, carlo <syseng...@gmail.com> wrote: > sorry for this "out of sync" answer but though I managed some "tricks" > to tackle the (problem of) validation in pure html forms during these > years, I would be curious about an answer to Mengu's request of > "showing how to make validation with manual forms".
When I need to do this, I do it with making a memory-based table, and SQLFORM or SQLFORM.factory, and do whatever validation I need. > > Sorry DenesL but you did not answer the question as you supposed a > model in place, so I would really appreciate a simple html form which > preserves validation. Thank you There is a fundamental "fuzziness" around this: If you have manual forms without data persistence, what are you validating? (and what can you not do by building up a simpel memory-db model, and validating transient data against that?) Second - if it is _really_ transient data that you are validation, then even memory db, per request, could get pretty "heavy" in terms of server load - why not do client-side validation? Either way, this begs the question: why exactly this form of question? I want to know the reasons / situation / logic behind this specific (server-side, no data persistence, no temporary, memory model of the data) request. As it stands, it seems to me to be missing some key information / motivations. Yarko > > carlo > > On 15 Mar, 21:09, DenesL <denes1...@yahoo.ca> wrote: > > > On Mar 15, 6:28 am, Mengu <whalb...@gmail.com> wrote: > > > > > First of all, I am not sure what is the problem you are trying to > > > > solve. Even if you havecustomformsand you build all the form html > > > > manually you can still use the existing validation mechanism. > > > > I don't want to use crud or sqlform or any html helper. i build my > > >formsmanually. and actually if you show me how to make validation > > > with manualforms, it would be good. > > > You could set the error messages in the requires > > > db.users.name.requires = IS_NOT_EMPTY(error_message = "Please enter > > your name") > > db.users.email.requires = [ > > IS_EMAIL(error_message="Given e-mail is not a valid one."), > > IS_NOT_IN_DB(db,'users.email',error_message="Sorry, this e-mail > > already exists in our database") > > ] > > > create your form with the same field names and to check them do > > > for n,v in request.vars.items(): > > rr=db.users[n].requires > > if isinstance(rr,list): > > t,e=v,None > > for r in rr: > > t,e=r(t) > > if e: break > > else: > > t,e=rr(v) > > if e: > > form.errors[n]=e > > > # here do whatever you need to do with form.errors > > > Denes -- You received this message because you are subscribed to the Google Groups "web2py-users" group. To post to this group, send email to web...@googlegroups.com. To unsubscribe from this group, send email to web2py+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/web2py?hl=en.
