Form fields: parameters

* Can be used to specify extra options
* For now, allows support for multiple selection

includes/form/field.inc.php

@@ -19,6 +19,8 @@ final class Field
 	private $name;
 
 	private $type;
+	private $parameters;
+
 	private $options = array( );
 
 	private $description;
@@ -33,10 +35,11 @@ final class Field
 	private $errors = array( );
 
 
-	public function __construct( $name , $type )
+	public function __construct( $name , $type , $parameters = array( ) )
 	{
 		$this->type = $type;
 		$this->name = $name;
+		$this->parameters = $parameters;
 	}
 
 
@@ -67,6 +70,12 @@ final class Field
 		return $this->type;
 	}
 
+	public function hasParameter( $name )
+	{
+		return array_key_exists( $name , $this->parameters )
+			|| array_search( $name , $this->parameters ) !== false;
+	}
+
 
 	public function setDescription( $description )
 	{

includes/form/field_views.inc.php

@@ -106,6 +106,9 @@ class FieldView_Select
 			->setAttribute( 'name' , $field->name( ) )
 			->setAttribute( 'id' , $prefix . 'field' )
 			->setAttribute( 'class' , 'form-select' );
+		if ( $field->hasParameter( 'multiple' ) ) {
+			$select->setAttribute( 'multiple' , 'multiple' );
+		}
 
 		$selected = $field->value( );
 		foreach ( $field->options( ) as $value => $obj ) {