Count Children Resources and Output The Number?

43 Posts

Aaron Brewer Reply #1, 10 years, 10 months ago

Hi there!

Let's take this setup for example:

- Parent
  -- Child
- Parent
  -- Child
- Parent
  -- Child
  -- Child
  -- Child
- Parent
  -- Child

Would I use getResources to add the number of children of each parent and output them as a string, or would that require a custom snippet?

So for example the output would look like this:

Total Children: (6)

Any ideas?
Thank you!

The web is our sandbox, so let's develop a castle.

5,888 Posts

Bruno17 Reply #2, 10 years, 10 months ago

Not sure, if this will work.
Create a snippet 'counter' with:

$newvalue = !empty($value) ? $value+1 : 1;
$modx->setPlaceholder('countervalue',$newvalue);

put in your children-tpl-chunks (getResources or wayfinder)

[[!counter? &value=`[[+countervalue]]`]]

and at the end:

[[+countervalue]]

[ed. note: Bruno17 last edited this post 10 years, 10 months ago.]

-------------------------------

you can buy me a beer, if you like MIGX

http://webcmsolutions.de/migx.html

Thanks!

534 Posts

exside Reply #3, 10 years, 10 months ago

I recently also needed exactly this functionality...here is the snippet that came out =), it's listening to the name of getChildCount

commented out is actually a simpler version if you only need one level of children...

<?php
// use like [[!getChildCount? &id=`[[*id]]`]] or with getResources [[!getChildCount? &id=`[[+id]]`]]
// returns the number of childs from a in $id specified resource
// this was the simple version to only get imediate childs, replaced by more complex version that can also count subfolder children
// $counter = 0;
// $children = $modx->getCollection('modResource', array('parent' => $id, 'published' => 1));

// foreach ($children as $child) {
// 	++$counter;
// }
// return $counter;

$count = 0;
$parents = $modx->getChildIds($id, 1, array('context' => 'web'));

foreach ($parents as $parent) {
	if ( $res = $modx->getObject('modResource', array('id' => $parent, 'published' => 1, 'deleted' => 0)) ) {

		$res = $res->toArray();

		if ( !empty($res['isfolder']) ) {

			$query = array(
				'parent' => $parent,
				'deleted' => 0,
				'published' => 1,
			);

			$count += (int)$modx->getCount('modResource', $query);
		} else {
			$count++;
		}
	}
}

return $count;