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<?php
/**
* Text input field with validation for numeric values.
*
* @package forms
* @subpackage fields-formattedinput
*/
class NumericField extends TextField{

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

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

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