Well, fucked is a little strong... You can (and someone should, just not me :-) ) create UI templates that will access the type conversion error map to get the submitted values which could not be converted and re-display them.
> -----Original Message----- > From: Mike Cannon-Brookes [mailto:[EMAIL PROTECTED] > Sent: Friday, December 12, 2003 5:30 AM > To: [EMAIL PROTECTED] > Subject: Re: [OS-webwork] Empty string property now "" > instead of null? > > > Well, that's why we almost always use Strings for critical > data - data conversion (like ints has many problems). > > Chief among them IMHO is that if you have a textfield backed > by a get/set int method, and someone submits 'abc' - you're > fucked (regardless of whether it sets null, 0, -1 or any > other value) :) > > (see Jason's mail a while ago about data conversion errors etc) > > M > > On 12/12/03 9:20 PM, "BOGAERT Mathias" > ([EMAIL PROTECTED]) penned the > words: > > > That is indeed a problem, but why would this be interesting > to know? I > > expect WebWork not to call any setters on my action (to set fields) > > when the form field is not filled (empty). > > > > Also, if empty String resolves to "", why an empty Integer > to null and > > not new Integer(0)? > > > > Mathias > > > > -----Original Message----- > > From: Mike Cannon-Brookes [mailto:[EMAIL PROTECTED] > > Sent: vrijdag 12 december 2003 11:15 > > To: [EMAIL PROTECTED] > > Subject: Re: [OS-webwork] Empty string property now "" instead of > > null? > > > > > > _exactly_ - you put it perfectly mate. > > > > So how do you tell the difference between a parameter, and not a > > parameter? (ie the text field never existed on the form at all) :) > > > > Cheers, > > Mike > > > > On 12/12/03 8:59 PM, "BOGAERT Mathias" > ([EMAIL PROTECTED]) penned > > the > > words: > > > >> The problem here is that a HTML form ALWAYS submits parameters as > >> empty strings, you cannot 'not' send a parameter in. > >> > >> Mathias > >> > >> -----Original Message----- > >> From: Dick Zetterberg [mailto:[EMAIL PROTECTED] > >> Sent: vrijdag 12 december 2003 10:45 > >> To: [EMAIL PROTECTED] > >> Subject: Re: [OS-webwork] Empty string property now "" instead of > >> null? > >> > >> > >> In WW1.3 and 1.4 a string parameter that is empty will set > the string > >> property to the empty string. Not null. If your program choose to > >> interpret this as null that is up to you. How can you > otherwise see > >> the difference between a parameter that is not sent in at > all and one > >> that is sent in but is empty? > >> > >> Cheers, > >> > >> Dick Zetterberg > >> [EMAIL PROTECTED] > >> > >> ----- Original Message ----- > >> From: "Lars Fischer" <[EMAIL PROTECTED]> > >> To: <[EMAIL PROTECTED]> > >> Sent: Thursday, December 11, 2003 12:38 PM > >> Subject: Re: [OS-webwork] Empty string property now "" instead of > >> null? > >> > >> > >>> IMO it is essential that is is NULL. This has been a > problem with WW > >>> 1.2. and has been fixed in 1.3. It's perfectly legal for > a String to > >>> be null. > >>> > >>> If WW2 handles this as an empty String, it's a bug. > >>> > >>>> Hi, > >>>> > >>>> When a form field (single textfield) is not filled, the request > >>>> param is an empty string, which translates to an empty > string array > >>>> (ParametersInterceptor), but my property setter is > called with an > >>>> empty string. Should't that be null? > >>>> > >>>> Cheers, > >>>> Mathias > >> > >> > >> > >> ------------------------------------------------------- > >> This SF.net email is sponsored by: SF.net Giveback Program. Does > >> SourceForge.net help you be more productive? Does it help > you create > >> better code? SHARE THE LOVE, and help us help YOU! Click Here: > >> http://sourceforge.net/donate/ > >> _______________________________________________ > >> Opensymphony-webwork mailing list > >> [EMAIL PROTECTED] > >> https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork > >> > >> > >> ------------------------------------------------------- > >> This SF.net email is sponsored by: SF.net Giveback Program. Does > >> SourceForge.net help you be more productive? Does it help > you create > >> better code? SHARE THE LOVE, and help us help YOU! Click Here: > >> http://sourceforge.net/donate/ > >> _______________________________________________ > >> Opensymphony-webwork mailing list > >> [EMAIL PROTECTED] > >> https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork > > > > > > > > ------------------------------------------------------- > > This SF.net email is sponsored by: SF.net Giveback Program. Does > > SourceForge.net help you be more productive? Does it help > you create > > better code? SHARE THE LOVE, and help us help YOU! Click Here: > > http://sourceforge.net/donate/ > > _______________________________________________ > > Opensymphony-webwork mailing list > > [EMAIL PROTECTED] > > https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork > > > > > > ------------------------------------------------------- > > This SF.net email is sponsored by: SF.net Giveback Program. Does > > SourceForge.net help you be more productive? Does it help > you create > > better code? SHARE THE LOVE, and help us help YOU! Click Here: > > http://sourceforge.net/donate/ > > _______________________________________________ > > Opensymphony-webwork mailing list > > [EMAIL PROTECTED] > > https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork > > > > ------------------------------------------------------- > This SF.net email is sponsored by: SF.net Giveback Program. > Does SourceForge.net help you be more productive? Does it > help you create better code? SHARE THE LOVE, and help us > help YOU! Click Here: http://sourceforge.net/donate/ > _______________________________________________ > Opensymphony-webwork mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork > ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. Does SourceForge.net help you be more productive? Does it help you create better code? SHARE THE LOVE, and help us help YOU! 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