<?
/*
    PHP Table class - Form and Data source linking
    Copyright (C) 2002 Richard Clark (rclark@exorsus.net)

    See the GNU General Public License included with this software
    for more details. If none is included you have NO LICENSE to
    operate this software and should contact the author immediately.
 */

class Form {
	var $name;
	var $data;
	var $render;
	var $validated;
	var $committed;

	function Form($name, $data, $render) {
		$this->name = $name;
		$this->data = $data;
		$this->render = $render;
		$this->committed = 0;
		$this->validated = 0;
	}

	function validate() {
		if ($this->validated || $this->aquired) { return; }
		$this->aquired=1;

		$this->data->aquire($_REQUEST[$this->name]);
		/* moved here to allow new forms to be populated auto */

		if (!$_REQUEST[$this->name]) { return; }

		if ($this->data->validate() == 0) {
			$this->data->commit();
			$this->committed = 1;
		}	
		$this->validated=1;
	}

	/*
	 * Only activates if data is there to be handled, does not
	 * render form if commit is successful.
	 */
	function handle() {
		$this->validate();
		if (!$this->committed) {
			$this->render->render($this->name, $this->data);
		}
	}

	/*
	 * Renders form no matter what (even if empty)
	 * Renders form subsequent to successful commit
	 */

	function render() {
		$this->validate();
		$this->render->render($this->name, $this->data);
	}
};
?>