Description
The “gform_shortcode_$action” filter in Gravity Forms is used to implement custom shortcode actions. The action is specified after “gform_shortcode_”.
Usage
Specify the action name after the gform_shortcode_ hook name, e.g.:
add_filter( 'gform_shortcode_form_property', 'custom_action', 10, 3 );
Parameters
- $shortcode_string string
The full shortcode string.
-
$attributes array
Array of the shortcode attributes.
array ( 'id' => '22', 'name' => 'Poll', 'action' => 'form_property', 'property' => 'title' );
-
$content string
The content text of the shortcode if it exists.
Examples
Adding a custom action
The example below has the following shortcode setup on a page:
[[gravityform id="22" name="Poll" action="form_property" property="title"] my content [/gravityform]]
…and uses the following hook setup with the action “form_property”. The “property” is retrieved and used to display the title of the form.
add_filter( 'gform_shortcode_form_property', 'custom_action', 10, 3 ); function custom_action( $string, $attributes, $content ) { //get the shortcode attributes into variables, default values set for some //the "property" attribute set in the shortcode has been added to the shortcode array extract( shortcode_atts( array( 'title' => true, 'description' => true, 'id' => 0, 'name' => *, 'field_values' => "", 'ajax' => false, 'tabindex' => 1, 'action' => 'form', 'property' => * ), $attributes ) ); $form = RGFormsModel::get_form_meta( $id ); //get the form object $property_value = $form[ $property ]; //retrieve the "property" from the form object $info = "The property to retrieve is {$property} with value {$property_value}."; return $info; }
Output hidden comment for inactive forms
This example shows how a HTML comment can be included in the page source code when a form is set to inactive.
add_filter( 'gform_shortcode_form', function ( $shortcode_string, $attributes ) { if ( empty( $shortcode_string ) ) { $shortcode_string = sprintf( '<!--Form (%s) is inactive.-->', rgar( $attributes, 'name', rgar( $attributes, 'id' ) ) ); } return $shortcode_string; }, 10, 2 );
Placement
This code may be placed in the functions.php file of your active theme OR in your plugin code.
Source Code
This filter is located in GFForms::parse_shortcode() in gravityforms.php.