Structure field related pages

Kirby 2 Solved ✅
1

Hello

I’m trying to do a related pages system like the cookbook explains https://getkirby.com/docs/cookbook/related-articles. I tried to do it with structure fields but I have an error that say : Invalid argument supplied for foreach()
This is my foreach

<?php foreach($page->related()->toStructure() as $item): ?>
        <li>
            <a href="<?php echo $item->url() ?>">
                <?php echo $item->title()->html() ?>
            </a>
        </li>
<?php endforeach ?>

and my blueprint is like that

  related:
    label: Related
    type: structure
    entry: >
      {{pages}}
    fields:
      pages:
        label: Pages
        type: page

I tried several things but I can’t make it works. Any ideas on how to solve it would be appreciated.

1 Like
2

I can’t see anything wrong with the foreach loop as such, but you are not getting the pages:

    <?php foreach($page->related()->toStructure() as $item):
      $p= $item->pages()->toPage();
      if($p):
     ?>
       <li>
         <a href="<?php echo $p->url() ?>">
           <?php echo $p->title()->html() ?>
         </a>
       </li>
      <?php endif ?>
    <?php endforeach ?>
3

Oh thank you but it does exactly the same error message : Invalid argument supplied for foreach()
(I’m on Kirby 2.5.1)

my .txt looks like that …

Related: 

- 
  pages: projects/project-b
- 
  pages: projects/project-c
4

Does the error refer to that foreach loop at all?

Where are you using this foreach loop and which page are you referring to?

5

I’m using the foreach loop into the “project.php” template

–> site/templates/project.php

the related pages are on projects/project-b and projects/project-c

This seem to be logical for me no ?

6

Yes, that’s a bit weird, could you please post the complete project.php template?

7

Yes, my template is only at the very beginning of the development. The only buggy lines are the foreach for the related pages…

<?php snippet('header') ?>

<main class="main" role="main">

    <h1><?php echo $page->title()->html() ?></h1>

    <time datetime="<?php echo $page->date('c') ?>"><?php echo $page->date('Y', 'year') ?></time>,
    <?php echo $page->materiaux() ?>,
    <?php echo $page->dimensions() ?>

    <div class="text">
        <?php echo $page->text()->kirbytext() ?>

        <?php foreach($page->images()->sortBy('sort', 'asc') as $image): ?>
        <figure>
            <img src="<?php echo $image->url() ?>" alt="<?php echo $page->title()->html() ?>">
        </figure>
        <?php endforeach ?>
    </div>

    <ul>
        <?php foreach($page->related()->toStructure() as $item):
                 $page = $item->pages()->toPage();
                 if($page):
        ?>
        <li>
            <a href="<?php echo page($item->pages())->url() ?>">
                <?php echo page($item->pages())->title()->html() ?>
            </a>
        </li>
        <?php endif ?>
        <?php endforeach ?>
    </ul>

    <nav class="nextprev cf" role="navigation">
        <?php if($prev = $page->prevVisible()): ?>
        <a class="prev" href="<?php echo $prev->url() ?>">&larr; previous</a>
        <?php endif ?>
        <?php if($next = $page->nextVisible()): ?>
        <a class="next" href="<?php echo $next->url() ?>">next &rarr;</a>
        <?php endif ?>
    </nav>

</main>

<?php snippet('footer') ?>
11

I don’t know, I did exactly what you suggested above. It’s a very basic and minimal Kirby layout.
It could be cool to provide a zip to someone just to check.

12

The problem is due to the fact that you use the related pages plugin which provides a page method called related() that interferes with the naming of your related field.

Options:

  • delete plugin if you don’t need it or comment the page method
  • rename your field to something else
1 Like
13

Oh shit I forgot this plugin. This was my first test to get related pages. Thank you very much Tenixe !
The kirby-related-ages plugin is good to have a system based on tags but I wanted something more manual.

Thank you all !