FieldtypeYaml by Horst Nogajski

Field that stores YAML data and formats it as an object, when requested.

Fieldtype YAML

for ProcessWire 2.5+ and 3.0+

Field that stores YAML data and formats it as an object, when requested.


After installation create a new field, let's say called people and assign it to a template, or just edit an existing text-based field and choose Yaml for the type, save!

In the Details-Tab you have some options you can choose from:

Parse as

Default is WireArray/WireData, the data can also be parsed as Object or Associative Array.

Associative Array is the fastest and the default output by the used Spyc parser, WireArray/WireData might be the slowest, but it's also the most feature rich. You can access properties like you are used to with pages or fields, like $page->person->get('title|name') or $page->people->find('age>20').


Now, in your just created field you can put in some YAML like this:

- name: Jane Doe
  occupation: Product Manager
  age: 33
    - running
    - movies
- name: John Doe
  occupation: Service Worker
  age: 28
    - cycling
    - fishing

In your template, or wherever you are accessing the page, you would use it like any other ProcesssWire data (if you set the parse option to either WireData or Object):

$out = '';
foreach ($page->people as $person) {
   $out .= "Name: {$person->name} <br>";
   $out .= "Occupation: {$person->occupation} <br>";
   $out .= "Age: {$person->age} <br>";
   $out .= "Hobbies: <br>";
   foreach ($person->hobbies as $hobby) {
      $out .= "- {$hobby} <br>";
   $out .= "--- <br>";
echo $out;

More info about YAML:


Change Log

  • 0.3.0 Make the module compatible with ProcessWire 3.x
  • 0.2.0 add WireArray feature, parse chaching and make default toString output the name or label of the field, if WireData/-Array is selected
  • 0.1.0 initial version

Install and use modules at your own risk. Always have a site and database backup before installing new modules.

Twitter updates

  • Adding custom actions to ProcessWire image fields in the admin, part of this week’s dev branch additions: More
    27 January 2023
  • ProcessWire 3.0.210 new main/master version released— More
    6 January 2023
  • ProcessWire 3.0.209: Core updates and an interesting AI that knows ProcessWire– More
    30 December 2022

Latest news

  • ProcessWire Weekly #456
    The 456th issue of ProcessWire Weekly covers latest core updates, introduces a new third party module called TextformatterRockDown, and more. Read on! / 4 February 2023
  • ProcessWire 3.0.210 new main/master version
    140 commits, 55 resolved issues, dozens of new features, eight contributors, and five new pull requests make yet another great new version of ProcessWire.
    Blog / 6 January 2023
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