Fetching data from another page in select query

Kirby 2 Questions 🤔
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1

Hi.
I’m currently building a site for a photographer that consists of a gallery page which is a parent page to multiple photo pages. I would like to give him the ability to tag a photo with a selection of pre-set categories (using the multiselect plugin).

In the gallery page I’ve created a structured field for him to specify the names of the categories he’d like to tag his pictures with

Screen Shot 2015-08-26 at 9.23.12 pm.jpg914×607 50.8 KB

Now, on the photo page, I’d like to know if it’s possible to pull through these categories into a select query, so that a nice checklist appears with those previously specified category names – i.e.:

categories:
  label: Categories
  type:  multiselect
  options: query
  query:
    page: gallery
    fetch: [categories?]

Screen Shot 2015-08-26 at 9.23.54 pm.jpg926×204 22.7 KB

(note: he wants the ability to tag a photo with multiple categories such as landscape and black & white)

Thanks!

2

That’s not possible out of the box. You would have to create your own field. Since you are already using a custom field, you can use this a a basis and extend it to support your categories options.

Or, you could write the options of the structure field to a json file which you can then call via its URL.
External API support for dynamic field options

You can now simply pass a URL for options to fetch a JSON array with keys and values for options:

  label: Select field
  type: select
  options: http://myoptionsapi.com/options.json

http://getkirby.com/changelog/kirby-2-1-0