if/else statement in template?

8 Posts

benperth Reply #1, 16 years, 10 months ago

Hi,

I’m trying to get my brain into the modx gear and finding it a bit hard as I am used to working with the smarty template system, so I hope someone can help me with the following question.

I basically just want to include some javascript files for specific pages (using the same template). In a smarty template I would do something like this
{if $page_id == 4}
<script type="javascript/text" src="js/blah.js"></script>
{/if}

I’m just wondering how I would achieve this in modx without making a new template? Would I have to write a snippet or use a TV? Which method would be best?

Thanks.

2,314 Posts

anonymized-26931 Reply #2, 16 years, 10 months ago

Hi benperth,

you could use the PHX Plugin for that:
http://wiki.modxcms.com/index.php/PHx#if_.3D.60value.60

http://modxcms.com/extras/package/342

928 Posts

kp52 Reply #3, 16 years, 10 months ago

Unless you’re already using PHx elsewhere on the site, you might find a purpose-built snippet easier to implement and maintain.

In the template:

<script type="javascript/text" src="js/[!setScript?script=`[*id*]`!]"></script>

The snippet:

<?php
// setScript
// input: &script, page id

switch($script) {
	case '1':
	 $js = 'one.js';
	 break;
	case '2':
	 $js = 'two.js';
	 break;
	default:
	 $js = 'general.js';
	}
return $js;
?>

I also find using page aliases and [*alias*] rather than numerical IDs for the parameter and the switch criteria is less error-prone. Ir also avoids problems with string|number comparisons that can sometimes arise in PHP.

I’ve not tested the specific code above, but I’ve used similar stuff for context-sensitive menus with no problems.

KP