silverstripe-framework/Forms/CurrencyField.php

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<?php
namespace SilverStripe\Forms;
use SilverStripe\ORM\FieldType\DBCurrency;
/**
* Renders a text field, validating its input as a currency.
* Limited to US-centric formats, including a hardcoded currency
* symbol and decimal separators.
* See {@link MoneyField} for a more flexible implementation.
*
* @todo Add localization support, see http://open.silverstripe.com/ticket/2931
*/
class CurrencyField extends TextField {
/**
* allows the value to be set. removes the first character
* if it is not a number (probably a currency symbol)
*
* @param mixed $val
* @return $this
*/
public function setValue($val) {
if(!$val) $val = 0.00;
$this->value = DBCurrency::config()->get('currency_symbol')
. number_format((double)preg_replace('/[^0-9.\-]/', '', $val), 2);
return $this;
}
/**
* Overwrite the datavalue before saving to the db ;-)
* return 0.00 if no value, or value is non-numeric
*/
public function dataValue() {
if($this->value) {
return preg_replace('/[^0-9.\-]/','', $this->value);
} else {
return 0.00;
}
}
public function Type() {
return 'currency text';
}
/**
* Create a new class for this field
*/
public function performReadonlyTransformation() {
return $this->castedCopy('SilverStripe\\Forms\\CurrencyField_Readonly');
}
public function validate($validator) {
$currencySymbol = preg_quote(DBCurrency::config()->get('currency_symbol'));
$regex = '/^\s*(\-?'.$currencySymbol.'?|'.$currencySymbol.'\-?)?(\d{1,3}(\,\d{3})*|(\d+))(\.\d{2})?\s*$/';
if (!empty($this->value) && !preg_match($regex, $this->value)) {
$validator->validationError(
$this->name,
_t('Form.VALIDCURRENCY', "Please enter a valid currency"),
"validation"
);
return false;
}
return true;
}
}