SLB field types and validation rules
SLB supports 13 general field types, four WooCommerce types and two layout helpers. Declare them under settings (or inside a block’s settings) in the section schema.
General fields
| Type | Use for |
|---|---|
text |
Single-line text |
textarea |
Multi-line text |
richtext |
HTML content |
image |
An image from the media library |
url |
A link |
video_url |
A video link |
color |
A colour picker |
number |
A number |
range |
A numeric range value |
select |
One choice from a list of options |
toggle |
On or off |
page |
A WordPress page picker |
spacing_box |
Per-instance margin and padding through a visual spacing box |
WooCommerce fields
| Type | Use for |
|---|---|
product |
A single product picker |
product_list |
A list of products |
category |
A product category picker |
collection_source |
A product collection source |
WooCommerce types need WooCommerce active. See the WooCommerce guide.
Layout helpers
header and paragraph are organizer types. They need no id and save no value; they only structure the editor panel.
Validation
| Rule | Applies to |
|---|---|
required |
Any field |
min_length, max_length |
Text fields (a character counter shows when max_length is set) |
min, max |
Number fields |
Rules run in the editor and again on the server.
Conditional fields
Add visible_if to a field to show it only when another field has a certain value. The operators are eq, neq and in.
Related: SLB documentation · Getting started · Free vs paid
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