RE: [PEAR] QF: Group validation max 1 value

Hi! Just in case someone else is in need of something like this: Here is my solution: $this->registerRule('checkmax', 'function', 'checkMax'); $this->addRule('anredegroup', 'please either enter a new value or choose one - not both', 'checkmax', 1); The function: function checkMax($elementName, $array, $max) { $count=0; foreach ($array as $key=>$value) if ($value!='') // if you want - you may add brackets :-) $count++; // as many as you like - they are free if ($count>$max) return false; else return true; } So - where a normal validation function gets a simple variable - a group validation function gets an array with the values ... Just for those who - like me - did not just assume that :-) BTW: what is "elementName" for? Regards Daniel > -----Original Message----- > From: Daniel Kopp [mailto:pear@daniu.de] > Sent: Tuesday, October 28, 2003 10:19 PM > To: pear-general@lists.php.net > Subject: [PEAR] QF: Group validation max 1 value > > > Hi! > > How can I validate a Group to have max. 1 value set? The > manual shows how to get min. 1 > > I need that for a special field: in Databases I would like to > have a select box followed by a text-field - like this: > > <Select a value> or set a <new> value > > The Selectbox keeps all the values in the Database (Select > Distinct ...) and with <new> the user can set a custom value > which will become a DB-value next time (by that it is easier > to avoid different values that are actually same). For that > reason I need a max 1 value group rule. Maybe someone could > also invent a standard QF-field like that? If I would be more > in QF I would do it ...