Possible to get Date value in form field?

Support Forms & Blueprints
1

I’m trying to submit a field in my form that includes today’s date, but get errors (obviously) when trying to do something like this:

name: hidden_date
type: hidden
default: {{ now }}

What allows the “process” part of the form plugin to read values like from: “{{ form.value.email }}” but trying similar throws big no-no’s? Thanks!

2

@thejame Have a look at Using Function Calls (data-*@)

Below is a working example.

I have done the following to get ‘now’ as default value in the Admin page of my plugin.

  1. Create new plugin
    $ bin/plugin devtools new-plugin
  2. In ‘user/plugins/my-plugin/my-plugin.php’ I added:
    public static function now()
{
    return date('Y-m-d h:i:s', time());
}
  3. In ‘/user/plugin/my-plugin/blueprints.yaml’ I defined the field as:
    hidden_date:
  type: hidden
  data-default@: '\Grav\Plugin\MyPluginPlugin::now'

In the admin page of the plugin, Grav generated the following hidden field.

<input data-grav-field="hidden" data-grav-disabled="false" type="hidden" class="input" 
   name="data[hidden_date]" value="2018-07-21 08:36:37">
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