$pages->count doesn't count?

[ndolph]

So, I've got this really really simple function in functions.php

function dopagination()
{
	$numofpages = $pages->count("has_parent=/posts/");
	return $numofpages;
}

And then I have this in pagination.inc

<div class="row">
	<div class="col-md-12">
		<?php
		$pagination = dopagination();
		echo $pagination;
		?>
	</div>
</div>

And it pukes this at me...

Error: Call to a member function count() on a non-object (line 23 of /var/www/de.net/dev/site/templates/functions.php)
This error message was shown because you are logged in as a Superuser. Error has been logged.

Uhm, am I doing something really wrong?

[ndolph]

Eh, changed my mind on the approach I guess.... I thought PW had built in pagination? Probably not for what I want to do though or how I'm doing things.

[teppo]

Whether or not you change your mind, the issue you had is actually well explained in that puke you mentioned: you're trying to use method count() of something that isn't an object, and thus can't have its own methods. This non-object in your case is the $pages, used in a function.

The reason for this is that in functions and class methods you have to use API vars with the wire() function -- wire('page'), wire('pages'), wire('session'), etc. In other words, your code should work just fine if you just replace $pages with wire('pages')

You're right in that ProcessWire has built-in pagination support: https://processwire.com/api/modules/markup-pager-nav/.

[ndolph]

Whether or not you change your mind, the issue you had is actually well explained in that puke you mentioned: you're trying to use method count() of something that isn't an object, and thus can't have its own methods. This non-object in your case is the $pages, used in a function.

The reason for this is that in functions and classes you have to use API vars with the wire() function -- wire('page'), wire('pages'), wire('session'), etc. In other words, your code should work just fine if you just replace $pages with wire('pages')

You're right in that ProcessWire has built-in pagination support: https://processwire.com/api/modules/markup-pager-nav/.

Ah I figured this as it works inside of another file that is included different etc...

The built-in pagination support doesn't make sense to me and how I'm trying to impliment it honestly...

[kixe]

In your function you are just asking for the total number. If you need only this thats easy done.

$pages->get('name=posts')->numChildren;

more options
http://cheatsheet.processwire.com/page/built-in-fields-reference/page-numchildren/

[kongondo]

...yes, and it's faster than count()

https://processwire.com/talk/topic/3094-get-first-image-and-title-of-children-pages/?p=30470

https://processwire.com/talk/topic/3094-get-first-image-and-title-of-children-pages/?p=30608