Custom sorting of pages

Kirby 2 Questions 🤔
1

Is there a way to do custom sorting via the $pages->sortBy() function?
I need to sort a bunch of pages which have a date as title (like this 04-12-2017)

2

What sort of result do you get if you simply sort by title?

3

it sorts like this:
01-12-2017
02-11-2017
03-10-2017
31-09-2017

4

Hm, works for me, as long as I add a sort order:

<?php
  foreach($page->children()->sortBy('title', 'desc') as $child) {
    echo $child->title() . '<br>';
  }
?>

Result:

24-09-2015
13-11-2016
05-04-2017
03-10-2017
01-12-2017
5

I think your example already shows that it is not sorting correctly. The result should be sorted descending which it is not.
Just the digits before the first - are sorted in descending order.
Try adding 04-11-2017 to those samples. The result will be oviously wrong for both asc and desc. :slight_smile:

6

You are right, sorry. Then I think you have to create a custom page method or a page model that converts the title to a UNIX timestamp… Unfortunately, there is no native sort method with a callback like the filter method.

Example with Page Model (suppose the child page template is called project.php):

<?php
class ProjectPage extends Page
{
    public function datesort()
    {
        return strtotime($this->title());
    }
}

Then in your template, use the newly create method to sort by:

<?php
foreach($page->children()->sortBy('datesort', 'desc') as $child) {
  echo $child->title() . '<br>';
}
?>
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