Subversion-Projekte lars-tiefland.zeldi.de_alt

/*

 * Lets you say "at least X inputs that match selector Y must be filled."

 *

 * The end result is that neither of these inputs:

 *

 *	<input class="productinfo" name="partnumber">

 *	<input class="productinfo" name="description">

 *

 *	...will validate unless at least one of them is filled.

 *

 * partnumber:	{require_from_group: [1,".productinfo"]},

 * description: {require_from_group: [1,".productinfo"]}

 *

 * options[0]: number of fields that must be filled in the group

 * options[1]: CSS selector that defines the group of conditionally required fields

 */

$.validator.addMethod( "require_from_group", function( value, element, options ) {

	var $fields = $( options[ 1 ], element.form ),

		$fieldsFirst = $fields.eq( 0 ),

		validator = $fieldsFirst.data( "valid_req_grp" ) ? $fieldsFirst.data( "valid_req_grp" ) : $.extend( {}, this ),

		isValid = $fields.filter( function() {

			return validator.elementValue( this );

		} ).length >= options[ 0 ];

	// Store the cloned validator for future validation

	$fieldsFirst.data( "valid_req_grp", validator );

	// If element isn't being validated, run each require_from_group field's validation rules

	if ( !$( element ).data( "being_validated" ) ) {

		$fields.data( "being_validated", true );

		$fields.each( function() {

			validator.element( this );

		} );

		$fields.data( "being_validated", false );

	}

	return isValid;

}, $.validator.format( "Please fill at least {0} of these fields." ) );