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<?php
/**
* A Single Numeric field extending a typical
* TextField but with validation.
* @package forms
* @subpackage fields-formattedinput
*/
class NumericField extends TextField{

function Field() {
$html = parent::Field();
Requirements::javascript(SAPPHIRE_DIR . 'javascript/NumericField.js');

return $html;
}

function Type() {
return 'numeric text';
}

function jsValidation() {
$formID = $this->form->FormName();
$error = _t('NumericField.VALIDATIONJS', 'is not a number, only numbers can be accepted for this field');
$jsFunc =<<<JS
Behaviour.register({
"#$formID": {
validateNumericField: function(fieldName) {
el = _CURRENT_FORM.elements[fieldName];
if(!el || !el.value) return true;

if(!isNaN(el.value)) {
return true;
} else {
validationError(el, "'" + el.value + "' $error","validation");
return false;
}
}
}
});
JS;

Requirements::customScript($jsFunc, 'func_validateNumericField');

//return "\$('$formID').validateNumericField('$this->name');";
return <<<JS
if(typeof fromAnOnBlur != 'undefined'){
if(fromAnOnBlur.name == '$this->name')
$('$formID').validateNumericField('$this->name');
}else{
$('$formID').validateNumericField('$this->name');
}
JS;
}

/** PHP Validation **/
function validate($validator){
if($this->value && !is_numeric(trim($this->value))){
  $validator->validationError(
  $this->name,
sprintf(
_t('NumericField.VALIDATION', "'%s' is not a number, only numbers can be accepted for this field"),
$this->value
),
"validation"
);
return false;
} else{
return true;
}
}

function dataValue() {
return (is_numeric($this->value)) ? $this->value : 0;
}
}
?>
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