Get all images from children

Kirby 2 Solved ✅
1

Hi,

is there a way to get a $files object containing all images of the children of a page?

I tried this but without success:

    $galleryPage = $pages->find('galerie');
    $galleryChilds = $galleryPage->children()->visible();
    $galleryImages = new Collection();
    foreach ($galleryChilds as $c) {
        $galleryImages->add($c->images());
    }

In this case $galleryImages seems to be an empty collection. If I use append instead of add I get an error saying that theres a missing argument, but I don’t know how to handle that …

Best,
Tobi

PS: There’s no docs for add and append, is it?

2

I think the problem here is that your are trying to add several images at once. You need a second foreach loop within the first that fetches each individual image from a child, and then append that image to the collection.

3

I tried this already but unfortunately this results in an empty collection, too … this is/was my code:

    $galleryImages = new Collection();
    foreach ($galleryChilds as $c) {
        foreach ($c->images() as $i) {
            $galleryImages->add($i);
        }
    }
4

This should work:

<?php
$galleryImages = new ArrayObject();
  foreach ($galleryChilds as $c) {
  foreach ($c->images() as $i) {
    $galleryImages->append($i);
   }
}
5

It does, but then I can’t process the images further like this:

$galleryImages = $galleryImages->filterBy('filename', '!*=', '-big')->shuffle()->limit(6);

Can I make a Collection out of an ArrayObject?

PS: Sorry for not mentioning that earlier O:-)

6

I think I have found a solution thanks to the source code:

<?php
    $galleryImages = new Collection();
    foreach ($galleryChilds as $c) {
        foreach ($c->images() as $i) {
            $galleryImages->data[] = $i;
        }
    }
?>
7

Hm … kind of … at least we’re (better: you’re) getting closer. Everything (I need) works except I can’t use shuffle(), i.e.

$galleryImages = $galleryImages->filterBy('filename', '!*=', '-big')->limit(6);

is fine but

$galleryImages = $galleryImages->filterBy('filename', '!*=', '-big')->shuffle()->limit(6);

isn’t: The resulting collection is empty …

(Btw. I had to replace $files with $galleryImages in your code)

8

Update: i found out that the collection is not empty. It just look like it because my browser didn’t show the error message except in the source code … here it is:

Fatal error: Call to a member function caption() on integer in […]/kirby (final)/site/templates/home.php on line 50

(caption is a field of the image meta file)

Edit:
Yeah … I found a workaround at least … here’s my code

    $galleryPage = $pages->find('galerie');
    $galleryChilds = $galleryPage->children()->visible();
    $galleryImages = new Collection();
    foreach ($galleryChilds as $c) {
        foreach ($c->images() as $i) {
            $galleryImages->data[] = $i;
        }
    }
    $galleryImages = $galleryImages->filterBy('filename', '!*=', '-big');
    shuffle($galleryImages->data);
    $galleryImages = $galleryImages->limit(6);

But maybe @bastianallgeier could take a look at it …