Thanks Malcom your comments were very helpful! There is one thing I can't figure out though. How can I query the metadata to find out if a specific relation is mandatory or not? Is there a way to access the db metadata and extract that kind of information?
Your help is greatly appreciated. Malcolm Edgar-2 wrote: > > One of the great features of Cayenne is that you can get this object > meta data, and enhance your UI so that it is aware of these > constraints. > > See the method: setObjEntityFieldConstrains(String, ObjEntity) for an > example: > > http://svn.sourceforge.net/viewvc/click/trunk/click/extras/src/net/sf/click/extras/cayenne/CayenneForm.java?revision=1725&view=markup > > regards Malcolm Edgar > > On 3/15/07, Aristedes Maniatis <[EMAIL PROTECTED]> wrote: >> >> On 15/03/2007, at 6:38 AM, syrinx wrote: >> >> > For example, if I try to commit an object with a missing "mandatory >> > field", >> > I get a ValidationException. From that exception I can access a >> > BeanValidationFailure object which contains the details of the >> > validation >> > error (description, source, attribute). The thing is that I would >> > like to >> > change the generic error messages (ex: field cannot be empty, field >> > exceeds >> > maximum allowed length) thrown by cayenne and these messages seem >> > to be hard >> > coded in the sources. >> > >> > Is there a "clean way" to customize those messages? >> >> Write your own validateForSave functions within the object entity >> subclass which return any validation message you want. >> >> if (getLastName() == null || getLastName().trim().length() == 0) { >> result.addFailure(ValidationFailure.validationFailure(this, >> Student.LAST_NAME_PROPERTY, >> "You must enter a student last name.")); >> } >> >> Ari Maniatis >> >> >> --------------------------> >> Aristedes Maniatis >> phone +61 2 9660 9700 >> PGP fingerprint 08 57 20 4B 80 69 59 E2 A9 BF 2D 48 C2 20 0C C8 >> >> >> > > -- View this message in context: http://www.nabble.com/Cayenne-validation-tf3404355.html#a9496912 Sent from the Cayenne - User mailing list archive at Nabble.com.
