/**
* Validate the given data for a single field
*
* Catches the Validation exceptions and transforms them into proper error messages.
*
* Blank values are not validated and always pass
*
* @param AbstractBaseType $type
* @param string $label
* @param array|string|int &$data may be modified by the validation function
* @return bool true if the data validates, otherwise false
*/
protected function validateField(AbstractBaseType $type, $label, &$data)
{
$prefix = sprintf($this->hlp->getLang('validation_prefix'), $label);
$ok = true;
if (is_array($data)) {
foreach ($data as &$value) {
if (!blank($value)) {
try {
$value = $type->validate($value);
} catch (ValidationException $e) {
$this->errors[] = $prefix . $e->getMessage();
$ok = false;
}
}
}
return $ok;
}
if (!blank($data)) {
try {
$data = $type->validate($data);
} catch (ValidationException $e) {
$this->errors[] = $prefix . $e->getMessage();
$ok = false;
}
}
return $ok;
}
/**
* Creates a unique label from the given one
*
* @param string $wantedlabel
* @param array $labels list of already assigned labels (will be filled)
* @return string
*/
protected function fixLabel($wantedlabel, &$labels)
{
$wantedlabel = trim($wantedlabel);
$fixedlabel = $wantedlabel;
$idx = 1;
while (isset($labels[utf8_strtolower($fixedlabel)])) {
$fixedlabel = $wantedlabel . $idx++;
}
// did we actually do a rename? apply it.
if ($fixedlabel != $wantedlabel) {
msg(sprintf($this->helper->getLang('duplicate_label'), $wantedlabel, $fixedlabel), -1);
$this->data['cols']['label'] = $fixedlabel;
}
$labels[utf8_strtolower($fixedlabel)] = 1;
return $fixedlabel;
}
