Recursive Directus.io readItems

Question

I have an navigation structure in Directus.io which consists of two collections.

navigations

id
title
navigation_items (One-to-many)

navigation_items

id
title
navigation (Many-to-one)
parent (Many-to-one)
children (One-to-many)

Since navigation_items is recursive, how can I get the complete tree in one request?

Example:

$readItem('navigations', id, {
  fields: ['id', 'title', 'navigation_items'],
})

Return:

{
  "id": "main",
  "title": "Main",
  "navigation_items": [
    3
  ]
}

But I have three sub levels of navigation items. How can I get the complete tree?!

Kolzar · Accepted Answer · 2024-06-18 10:20:59Z

$readItem('navigations', id, {
  fields: [
    'id', 
    'title', 
    'navigation_items.id', 
    'navigation_items.title',
    'navigation_items.children.id',
    'navigation_items.children.title',
    'navigation_items.children.children.id',
    'navigation_items.children.children.title',
    'navigation_items.children.children.children.id',
    'navigation_items.children.children.children.title'
  ],
  deep: {
    navigation_items: {
      _limit: -1, // This will remove any limit on the number of children retrieved
      _sort: 'id',
      children: {
        _limit: -1,
        _sort: 'id',
        children: {
          _limit: -1,
          _sort: 'id',
          children: {
            _limit: -1,
            _sort: 'id'
          }
        }
      }
    }
  }
})
.then(response => {
  console.log(response);
})
.catch(error => {
  console.error(error);
});

In this example, the fields parameter specifies which fields you want to retrieve, including the nested navigation_items and their children up to three levels deep. The deep parameter configures the depth of the recursion and ensures that all children at each level are retrieved.

If you need more than three levels, you can extend the fields and deep parameters accordingly.

Collectives™ on Stack Overflow

Recursive Directus.io readItems

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related