tasks/includes/t-items/fields.inc.php

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<?php
class Item_LocationField
implements FieldValidator , FieldModifier
{
private $okLocations;
public function __construct( $okLocations )
{
$this->okLocations = $okLocations;
}
public function replace( $value )
{
$exploded = explode( ':' , $value );
if ( count( $exploded ) != 2 ) {
$exploded = array( 0 , $value );
}
if ( $exploded[ 1 ] == '' ) {
$exploded[ 0 ] = 1;
} else {
$exploded[ 0 ] = ( $exploded[ 0 ] == '0' ) ? 0 : 1;
$exploded[ 1 ] = (int) $exploded[ 1 ];
}
return join( ':' , $exploded );
}
public function validate( $value )
{
list( $inside , $before ) = explode( ':' , $value );
if ( $before != '' && Loader::DAO( 'items' )->get( $before ) == null ) {
return array( 'This item no longer exists.' );
}
if ( ! ( empty( $this->okLocations ) || in_array( $value , $this->okLocations ) ) ) {
return array( 'Invalid destination' );
}
return null;
}
}