Alpaca Forms - Hidden Field

The hidden field.

Properties

Title	Hidden
Description	Field for a hidden HTML input
JSON Schema Type(s)	string
Field Type	hidden
Base Field Type	None

Schema

Property	Type	Default	Description
default	any		The default value to be assigned for this property. If the data for the field is empty or not provided, this default value will be plugged in for you. Specify a default value when you want to pre-populate the field's value ahead of time.
dependencies	array		List of property dependencies.
description	string		Detailed description of the property.
disallow	array		List of disallowed values for the property.
enum	array		List of specific values for this property
format	string		Data format of the property.
readonly	boolean		Indicates that the field is read-only. A read-only field cannot have it's value changed. Read-only fields render in a grayed-out or disabled control. If the field is rendered using a view with the `displayReadonly` attribute set to false, the read-only field will not appear.
required	boolean		Indicates whether the field's value is required. If set to true, the field must take on a valid value and cannnot be left empty or unassigned.
title	string		Short description of the property.
type	string	string	Data type of the property.

Options

Property	Type	Default	Description
disabled	boolean		Field will be disabled if true.
fieldClass	string		Specifies one or more CSS classes that should be applied to the dom element for this field once it is rendered. Supports a single value, comma-delimited values, space-delimited values or values passed in as an array.
focus	checkbox	true	If true, the initial focus for the form will be set to the first child element (usually the first field in the form). If a field name or path is provided, then the specified child field will receive focus. For example, you might set focus to 'name' (selecting the 'name' field) or you might set it to 'client/name' which picks the 'name' field on the 'client' object.
form	object		Options for rendering the FORM tag.
helper	string		Field help message.
helpers	array		An array of field help messages. Each message will be displayed on it's own line.
helpersPosition	string	below	Defines the placement location of the helper text relative to the control (either 'above' or 'below')
hidden	boolean		Field will be hidden if true.
hideInitValidationError	boolean		Hide initial validation errors if true.
id	string		Unique field id. Auto-generated if not provided.
label	string		Field label.
name	string		Field Name.
optionLabels	array		An array of string labels for items in the enum array
readonly	boolean		Field will be readonly if true.
showMessages	boolean	true	Display validation messages if true.
sort	function		Defines an f(a,b) sort function for the array of enumerated values [{text, value}]. This is used to sort enum and optionLabels as well as results that come back from any data sources (for select and radio controls). By default the items are sorted alphabetically. Don't apply any sorting if false.
type	string	hidden	Field type.
validate	boolean	true	Field validation is required if true.
view	string		Allows for this field to be rendered with a different view (such as 'display' or 'create')

Example 1: Form with Hidden Field

This example renders a form with a hidden token field. When the form submits, we extract the token value and print it out.