<?php
/*
 * Doctrine Admin
 * Copyright (C) 2013 Bastiaan Welmers, bastiaan@welmers.net
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

namespace Bast1aan\DoctrineAdmin\View {
	use Bast1aan\DoctrineAdmin\Property;
	interface FormElement {
		/**
		 * @return string
		 */
		function render();
		
		function __toString();
		
		function getProperty();
		
		function setProperty(Property $property);
	}
}
<?php
/*
 * Doctrine Admin
 * Copyright (C) 2013 Bastiaan Welmers, bastiaan@welmers.net
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

namespace Bast1aan\DoctrineAdmin\View {
	use Bast1aan\DoctrineAdmin\Property;
	interface FormElement {
		/**
		 * @return string
		 */
		function render();
		
		function __toString();
		
		function getProperty();
		
		function setProperty(Property $property);

		/**
		 * Set the value of the element from incoming form data
		 * @param string|string[] $value
		 */
		function setValue($value);

		/**
		 * Get the value of this element sutable for the view
		 * @return string|string[]
		 */
		function getValue();
	}
}

Define extra fields setValue() and getValue() on formelements
Define extra fields setValue() and getValue() on formelements
