[TYPO3-english] Validate input field in TYPO3 BE

[Steffen Müller]

Hi.

On 03.05.2011 12:14 Rayuth You wrote:
> Hi all
>
> I use typo3 4.5, I want to validate my field in BE with regular
> expression. I tried in model with @validate RegularExpression(). But it
> not work.
>

You use extbase, right? Next time ask in the typo3.projects.typo3v4mvc 
list.

What arguments did you use in RegularExpression()?

You should put the regex pattern into the clauses, e.g.

/**
  * @var string $title
  * @validate RegularExpression('/[a-z]+/')
  */
protected $title;

... will result in:
preg_match('/[a-z]+/', $title);


You can of course write a validator by yourself. e.g. if you need the 
regex repeatedly or you want to hide complexity in your model. Find an 
example in SjrOffers extension in forge:


Model:
----------

class Tx_SjrOffers_Domain_Model_AttendanceFee extends 
Tx_Extbase_DomainObject_AbstractEntity {

/**
  * @var string The amount.
  * @validate Tx_SjrOffers_Domain_Validator_AmountValidator
**/
protected $amount = '0.00';

http://forge.typo3.org/projects/extension-sjr_offers/repository/entry/trunk/Classes/Domain/Model/AttendanceFee.php



Validator:
--------------

class Tx_SjrOffers_Domain_Validator_AmountValidator extends 
Tx_Extbase_Validation_Validator_AbstractValidator {

	/**
	 * Returns TRUE, if the given value is a valid amount.
	 *
	 * If at least one error occurred, the result is FALSE.
	 *
	 * @param mixed $value The value that should be validated
	 * @return boolean TRUE if the value is an amount, otherwise FALSE
	 */
	public function isValid($value) {
		$this->errors = array();
		if (preg_match("/^([0-9]{1,3}(\.[0-9]{3})*(,[0-9]+)?|,[ 0-9]+)$/", 
$input, $matches)) {
			return TRUE;
		}
	}
}


http://forge.typo3.org/projects/extension-sjr_offers/repository/entry/trunk/Classes/Domain/Validator/AmountValidator.php


-- 
cheers,
Steffen

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