Trying to get params from list in joomla - joomla

Question

I have a joomla 3 module. It works great. I want to add parameters in the administration section that I can then use in the tmpl->default.php file, but I'm struggling to find out how to do it.
I have in my XML file:
<config>
<fields name="params">
<fieldset name="basic">
<field
name="show_category"
type="list"
label="What to display"
description="What to display"
default="">
<option value="0">Day/Time/Event</option>
<option value="1">Day/Time/Event/Description</option>
</field>
</fieldset>
</fields>
</config>
and then in my default.php file:
<?php defined('_JEXEC') or die;
$module = JModuleHelper::getModule('mod_calendar_ajax_google');
$moduleParams = new JRegistry();
$moduleParams->loadString($module->params);
$param = $moduleParams->get('show_category', '');
$dashboardID = $param['show_category'];
but is doesn't work.

Answer 1

Better not to call params directly in default.php file rather you can call params in your mod_calendar_ajax_google.php file like this
$category = $params->get('show_category','Day/Time/Event');
This will give the name if it is set in your options, else it gives the default value Day/Time/Event.
To call it in your default.php file, you can directly call $category. Hope I made myself clear.
If at all you need to call param directly from anywhere in joomla you need to remove last line. It should only be this
$module = JModuleHelper::getModule('mod_calendar_ajax_google');
$moduleParams = new JRegistry();
$moduleParams->loadString($module->params);
$dashboardID = $moduleParams->get('show_category', '');

Answer 2

Example:
You have module "mod_calendar_ajax_google". Then you need next files structure:
-mod_calendar_ajax_google.xml
-mod_calendar_ajax_google.php
-helper.php
-tmpl (folder)
--default.php
Code mod_calendar_ajax_google.php
<?php
defined('_JEXEC') or die;
require_once dirname(__FILE__).'/helper.php';
$data = modCalendarAjaxGoogleHelper::getData($params);
require JModuleHelper::getLayoutPath('mod_calendar_ajax_google', $params->get('layout', 'default'));
Code helper.php
<?php
defined('_JEXEC') or die;
class modCalendarAjaxGoogleHelper {
public static function getData(&$params) {
$data = $params->get('show_category');
return $data;
}
}
Code default.php
<?php
defined('_JEXEC') or die;
print_r ($data); // <-- YOUR PARAMS