Slug
A slug input field
The slug field creates a text input that automatically sanitizes the typed value with our built-in sluggify method. It's perfect if you want to create IDs or class names for HTML elements or paths for files or URLs.

Example
fields:
className:
label: Class
type: slug
Field properties
| Name | Type | Default | Description |
|---|---|---|---|
| after | – | Optional text that will be shown after the input | |
| allow | string |
Set of characters allowed in the slug | |
| autofocus | bool |
– | Sets the focus on this field when the form loads. Only the first field with this label gets |
| before | – | Optional text that will be shown before the input | |
| default | – | Default value for the field, which will be used when a page/file/user is created | |
| disabled | bool |
– | If true, the field is no longer editable and will not be saved |
| font | string |
– | Sets the font family (sans or monospace) |
| help | – | Optional help text below the field | |
| icon | string |
url |
Changes the link icon |
| label | – | The field label can be set as string or associative array with translations | |
| maxlength | int |
– | Maximum number of allowed characters |
| minlength | int |
– | Minimum number of required characters |
| path | string |
– | Set prefix for the help text |
| pattern | string |
– | A regular expression, which will be used to validate the input |
| placeholder | – | Optional placeholder value that will be shown when the field is empty | |
| required | bool |
– | If true, the field has to be filled in correctly to be saved. |
| sync | string |
– | Name of another field that should be used to automatically update this field's value |
| translate | bool |
true |
If false, the field will be disabled in non-default languages and cannot be translated. This is only relevant in multi-language setups. |
| when | – | Conditions when the field will be shown (since 3.1.0) | |
| width | string |
1/1 |
The width of the field in the field grid. Available widths: 1/1, 1/2, 1/3, 1/4, 2/3, 3/4
|
| wizard | false |
Set to object with keys field and text to add button to generate from another field |
allow option
By default, the slug field will strip out or replace any non-alphabetic, non-numeric character with a simple dash. You can define a custom set of allowed characters with the allow option:
fields:
className:
label: Class Name
type: slug
sync: title
allow: a-z_
sync option
You can sync the slug field with another field. Whenever the editor types something into the synced field, the slug field will update with a sluggified version of the input:
fields:
className:
label: Class Name
type: slug
sync: title
Please note that when your field to sync uses camelCase, you still have to reference the field with all lowercase letters:
fields:
sectionHeadline:
type: text
id:
label: Id
type: slug
sync: sectionheadline
The same applies for the wizard option below.
The slug field also works within blocks or structure field items to sync fields within a block/structure field item:
fields:
structure:
type: structure
fields:
text:
type: text
slug:
type: slug
sync: text
wizard option
If you don't want to automatically sync the slug field with the other field, you can also to do this manually when you click a button. The wizard option accepts a field to sync with and a text attribute for the button text.
fields:
identifier:
label: Identifier
type: slug
wizard:
field: input
text: Generate!

How to use in templates/snippets
<div class="<?= $page->className() ?>">
<!-- -->
</div>