Categories from parent page and structure

Kirby 3 Solved ✅
1

Hi, I create categories from parent page with structure:

      category:
        label: Categories
        type: structure                
        fields:
          cattitle:
            label: Title
            type: text
          catdesc:
            label: Content
            type: textarea

In subpage, I select categories with checkboxes:

              cat:
                label: Category
                type: checkboxes
                #style: table
                options: query
                query: 
                  fetch: page.parent.category.toStructure
                  text: "{{ structureItem.cattitle }}"
                  value: "{{ structureItem.cattitle }}"

In the parent page template, I show the categories and correspondant subpages this way:

  <?php $subpages = $page->children()->listed() ;?>
  <?php $categories  = $subpages->sortBy('cat', 'sort')->pluck('cat', ',', true);?>
  <?php foreach ($categories as $category): ?>
  <div class="">
    <h2><?php echo html($category) ?></h2>
    <?php $catlist = $subpages->filterBy('cat', $category, true); ?>
    <?php foreach ($catlist as $cat): ?>
    <a <?= r($cat->isOpen(), ' class="is-active"') ?> href="<?php echo $cat->url() ?>"><?php echo $cat->title()->html() ?></a>
    <?php endforeach ?>
  </div>
  <?php endforeach ?>

It seems to work corectly, but I can’t sort categories manually. Only asc or desc will work.

So I tried something like this, but does not work, categories titles from structures are correctly shown, but I can’t output nothing from correspondant subpages :frowning: and I’ve no idea how to do it.

<?php foreach ($page->category()->toStructure() as $category): ?>
  <h2><?= $category->cattitle()->html() ?></h2>  
  <?php $categorylist = $page->children()->filterBy('cat', $category) ?>
  <?php foreach ($categorylist as $cat): ?>
  <a<?= r($cat->isOpen(), ' class="is-active"') ?> href="<?php echo $cat->url() ?>"><?php echo $cat->title()->html() ?></a>
  <?php endforeach ?>
  <?php endforeach ?>

Any help is welcome, thank you.

2

What do you mean by “sort categories manually”? Do you want to preserve the same order as in the structure field?

The problem is this line:

 <?php $categorylist = $page->children()->filterBy('cat', $category) ?>

You can filter by the structure item, but have to use the value you stored in your subpage, in this case the title, so it should become:

 <?php $categorylist = $page->children()->filterBy('cat', $category->title() ?>
3

Yes, exactly, I would to be able to keep order from the structure field. I’m sur user will ask for it at a moment…

I also tried

 <?php $categorylist = $page->children()->filterBy('cat', $category) ?>

Just output nothing

 <?php $categorylist = $page->children()->filterBy('cat', $category->cattitle()) ?>

If multiple categories are selected, it outputs only one or nothing

4

You would have to add the separator as well for multiple values

 <?php $categorylist = $page->children()->filterBy('cat', $category->cattitle(), ',') ?>
5

Yes, it was obvious, I should have thought about it! thanks again Sonja.

6

If you want to prevent outputting categories that have no entries, you could check if the given value is actually used:

<?php 
$usedCategories = $page->children()->pluck('cat', ',', true);
foreach ($page->category()->toStructure() as $category): ?>
  <?php if (!in_array($category->cattitle(), $usedCategories)) continue; ?>
  <h2><?= $category->cattitle()->html() ?></h2>  
  <?php $categorylist = $page->children()->filterBy('cat', $category-> cattitle(), ',') ?>
  <?php foreach ($categorylist as $cat): ?>
    <a<?= r($cat->isOpen(), ' class="is-active"') ?> href="<?php echo $cat->url() ?>"><?php echo $cat->title()->html() ?></a>
  <?php endforeach ?>
<?php endforeach ?>
1 Like
7

Is there a camera next to my computer ?? I was just working on this :wink: and was wondering if it was a good practice to let an empty category visible…
Thanks a lot for the tips and code. I just “correct” it with a missing close parenthesis:
<?php if(!in_array($category->cattitle(), $usedCategories)) continue; ?>