FieldHelper.module

FieldHelper.module

<?php

/**
 * ProcessWire Module FieldHelper
 *
 *
 * ProcessWire 2.x
 * Copyright (C) 2010 by Ryan Cramer
 * Licensed under GNU/GPL v2, see LICENSE.TXT
 *
 * http://www.processwire.com
 * http://www.ryancramer.com
 *
 */

class FieldHelper extends WireData implements Module {

	/**
	 * getModuleInfo is a module required by all modules to tell ProcessWire about them
	 *
	 * @return array
	 *
	 */
	public static function getModuleInfo() {

		return array(
			'title' => 'FieldHelper',
			'version' => 100,
			'summary' => 'Hide fields depending on permission, role, or user.',
			'singular' => true,
			'autoload' => true
			);
	}

	public function init() {
		// add after-hook to the inputfield render method
		$this->addHookAfter("Inputfield::render", $this, "renderField");
	}

	/**
	 * Hide fields depending on permission or possibly role, user
	 *
	 */
	public function renderField(HookEvent $event) {
		// get the current field
		$field = $event->object;

		// example 1
		if($field->name == "pre_content") {
			if(!$this->user->hasPermission("admin-fields")){
				$event->return = '';
			}
		}
		// example 2
		if($field->name == "after_content") {
			if(!$this->user->hasRole('superuser')){
				$event->return = '';
			}
		}
		// example 3
		if($field->name == "page_scripts") {
			if(!$this->user->name('admin')){
				$event->return = '';
			}
		}
	}

}