Error Checking

Blesta uses the Input component to perform automatic error checking and error message handling. The way it works is by defining a set of rules and validating input based on those rules. The Input component is a simple, yet powerful way to validate input. As we'll see, input can be formatted prior to validation and/or after validation.

Built-in Rules

The Input component has a set of built in rules. The syntax for invoking these rules is a string or a single dimensional array.

<?php
	...
	$rules = array(
		'field_1' => array(
			'empty' => array(
				'rule' => "isEmpty",
				'negate' => true,
				'message' => "Field 1 may not be empty."
			)
		),
		'field_2' => array(
			'valid' => array(
				'rule' => array("maxLength",32),
				'message' => "Field 2 must be 32 characters or less." 
			)
		)
	);
	$this->Input->setRules($rules);
?>

isEmpty

isPassword

isDate

matches

compares

between

minLength

maxLength

betweenLength

PHP Rules

In additional to the built-in Input rules, you can also invoke any PHP function as a rule as well.

Custom Rules