Joomla - Custom error message from form invalid fields - joomla

Question

I am developing Custom Component for Joomla.
I did well in validating field by adding custom rule. But if entered value does not pass through my validation, it gives error as "Invalid Field: My Field Name"
I want to replace this with my own message.
I know I can use "JText::_('LANGUAGE_STRING'). But I'm not sure where do I need to add it.
I have custom rule called "validemails" which returns false in client side as well as server side validation.
My Client side Validation is: (components/com_helpdesk/models/forms/create.js)
jQuery(document).ready(function () {
document.formvalidator.setHandler('validemail', function (value) {
var emails = [value];
if (value.indexOf(';') !== -1) {
emails = value.split(';');
}
else if(value.indexOf(',') !== -1) {
emails = value.split(',');
}
regex = /^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+#[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/;
var result = false;
emails.each(function (value) {
result = regex.test(jQuery.trim(value));
if (result === false) {
return false;
}
});
return result;
});
});
My Server Side Validation is: (components/com_helpdesk/models/rules/validemail.php)
use Joomla\Registry\Registry;
JFormHelper::loadRuleClass('email');
class JFormRuleValidemail extends JFormRuleEmail {
public function test(SimpleXMLElement $element, $value, $group = null, Registry $input = null, JForm $form = null) {
$emails = array($value);
if (strpos($value, ';') !== false) {
$emails = explode(';', $value);
}
else if (strpos($value, ',') !== false) {
$emails = explode(',', $value);
}
foreach ($emails as $email) {
if (!parent::test($element, trim($email))) {
return false;
continue;
}
}
return true;
}
}
Please note that I'm developing Front-end view of Component not back-end.

Answer 1

Well fortunately, I got my server side validation working by this way:
use Joomla\Registry\Registry;
JFormHelper::loadRuleClass('email');
class JFormRuleValidemail extends JFormRuleEmail {
public function test(SimpleXMLElement $element, $value, $group = null, Registry $input = null, JForm $form = null) {
$emails = array($value);
if (strpos($value, ';') !== false) {
$emails = explode(';', $value);
}
else if (strpos($value, ',') !== false) {
$emails = explode(',', $value);
}
foreach ($emails as $email) {
if (!parent::test($element, trim($email))) {
***$element->addAttribute('message', JText::_('COM_HELPDESK_ERROR_EMAIL').' '.$value);***
return false;
continue;
}
}
return true;
}
}
I got the solution. May be it will be useful for other googlers. Below is a code snippet for client side validation. Put below code in your custom JS:
jQuery('.validate').click(function (e) {
var fields, invalid = [], valid = true, label, error, i, l;
fields = jQuery('form.form-validate').find('input, textarea, select');
if (!document.formvalidator.isValid(jQuery('form'))) {
for (i = 0, l = fields.length; i < l; i++) {
if (document.formvalidator.validate(fields[i]) === false) {
valid = false;
invalid.push(fields[i]);
}
}
// Run custom form validators if present
jQuery.each(document.formvalidator.custom, function (key, validator) {
if (validator.exec() !== true) {
valid = false;
}
});
if (!valid && invalid.length > 0) {
error = {"error": []};
for (i = invalid.length - 1; i >= 0; i--) {
label = jQuery.trim(jQuery(invalid[i]).data("label").text().replace("*", "").toString());
if (label) {
if(label === 'Subject') {
error.error.push('Please Enter Subject');
}
if(label === 'Description') {
error.error.push('Please Enter Description');
}
if(label === 'Priority') {
error.error.push('Please Select Priority');
}
if(label === 'Email CCs') {
error.error.push('Please Enter proper Emails in CC section');
}
if(label === 'Email BCCs') {
error.error.push('Please Enter proper Emails in BCC section');
}
}
}
}
Joomla.renderMessages(error);
}
e.preventDefault();
});