silverstripe-framework/forms/EmailField.php

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<?php
/**
* Text field with Email Validation.
* @package forms
* @subpackage fields-formattedinput
*/
class EmailField extends TextField {
function jsValidation() {
$formID = $this->form->FormName();
$error = _t('EmailField.VALIDATIONJS', 'Please enter an email address.');
$jsFunc =<<<JS
Behaviour.register({
"#$formID": {
validateEmailField: function(fieldName) {
var el = _CURRENT_FORM.elements[fieldName];
if(!el || !el.value) return true;
if(el.value.match(/^[a-z0-9!#$%&'*+\/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&'*+\/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$/i)) {
return true;
} else {
validationError(el, "$error","validation");
return false;
}
}
}
});
JS;
//fix for the problem with more than one form on a page.
Requirements::customScript($jsFunc, 'func_validateEmailField' .'_' . $formID);
//return "\$('$formID').validateEmailField('$this->name');";
return <<<JS
if(typeof fromAnOnBlur != 'undefined'){
if(fromAnOnBlur.name == '$this->name')
$('$formID').validateEmailField('$this->name');
}else{
$('$formID').validateEmailField('$this->name');
}
JS;
}
/**
* Validates for RFC 2822 compliant email adresses.
*
* @see http://www.regular-expressions.info/email.html
* @see http://www.ietf.org/rfc/rfc2822.txt
*
* @param Validator $validator
* @return String
*/
function validate($validator){
$this->value = trim($this->value);
$pcrePattern = '^[a-z0-9!#$%&\'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&\'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$';
// PHP uses forward slash (/) to delimit start/end of pattern, so it must be escaped
$pregSafePattern = str_replace('/', '\\/', $pcrePattern);
if($this->value && !preg_match('/' . $pregSafePattern . '/i', $this->value)){
$validator->validationError(
$this->name,
_t('EmailField.VALIDATION', "Please enter an email address."),
"validation"
);
return false;
} else{
return true;
}
}
}
?>