arse/includes/form/validators.inc.php

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<?php
class Validator_StringLength
implements FieldValidator
{
protected $errorPrefix;
protected $minLength;
protected $maxLength;
public function __construct( $errorPrefix , $minLength = 0 , $maxLength = null )
{
assert( $maxLength === null || $maxLength >= $minLength );
$this->errorPrefix = $errorPrefix;
$this->minLength = $minLength;
$this->maxLength = $maxLength;
}
public function validate( $value )
{
$len = strlen( $value );
if ( $len < $this->minLength ) {
$template = Loader::Text( '%1$s is too short (min. %2$d characters)' );
return array( sprintf( $template , $this->errorPrefix , $this->minLength ) );
}
if ( $this->maxLength !== null && $len > $this->maxLength ) {
$template = Loader::Text( '%1$s is too long (max. %2$d characters)' );
return array( sprintf( $template , $this->errorPrefix , $this->maxLength ) );
}
return null;
}
}
class Validator_InArray
implements FieldValidator
{
private $values;
private $errorText;
public function __construct( array $values , $errorText )
{
$this->values = $values;
$this->errorText = $errorText;
}
public function validate( $value )
{
if ( ! ( empty( $this->values ) || in_array( $value , $this->values ) ) ) {
return array( $this->errorText );
}
return null;
}
}
class Validator_IntValue
implements FieldValidator
{
private $invalidText;
private $minValue;
private $minError;
private $maxValue;
private $maxError;
public function __construct( $invalidText )
{
$this->invalidText = $invalidText;
}
public function setMinValue( $minValue , $minError = null )
{
assert( $this->maxValue === null || $minValue <= $this->maxValue );
$this->minValue = $minValue;
$this->minError = ( $minError === null ) ? $this->invalidText : $minError;
return $this;
}
public function setMaxValue( $maxValue , $maxError = null )
{
assert( $this->minValue === null || $maxValue >= $this->maxValue );
$this->maxValue = $maxValue;
$this->maxError = ( $maxError === null ) ? $this->invalidText : $maxError;
return $this;
}
public function validate( $value )
{
if ( !is_scalar( $value ) || (int) $value != $value ) {
return array( $this->invalidText );
} else if ( $this->minValue !== null && $value < $this->minValue ) {
return array( $this->minError );
} else if ( $this->maxValue !== null && $value > $this->maxValue ) {
return array( $this->maxError );
}
}
}