DescriptionUsageJavaScript VersionParametersExamplePlacementSource CodePHP VersionParametersExamplePlacementSource CodeVersion
Description
This filter can be used to modify the coupon discount before it is applied to the form total.
Usage
The gform_coupons_discount_amount filter has both a JavaScript version and a PHP version. Both versions should be used.
The JavaScript version only modifies the coupon discount on the front-end.
gform.addFilter( 'gform_coupons_discount_amount', function( discount, couponType, couponAmount, price, totalDiscount ) {
// do stuff
return discount;
} );
The PHP version modifies the coupon discount during submission, ensuring that the pricing data used to create the entry and used with payment add-ons is updated.
add_filter( 'gform_coupons_discount_amount', function( $discount, $coupon, $price, $entry ) {
// do stuff
return $discount;
}, 10, 4 );
JavaScript Version
Parameters
discount float
The discount amount.
couponType float
The couponAmountType from the Coupons Feed Meta.
couponAmount float
The discount amount from the Coupons Feed Meta.
price float
The form total excluding discounts.
totalDiscount float
The total discount from all currently applied coupons.
Example
This example shows how you can adjust the coupon discount for logged-in users.
gform.addFilter( 'gform_coupons_discount_amount', function( discount, couponType, couponAmount, price, totalDiscount ) {
// you would need to write your own JS-version of is_user_logged_in()
if ( is_user_logged_in() ) {
discount += 5;
}
return discount;
} );
Placement
Your code snippet can be placed in a HTML field on your form or in a theme custom JavaScript file.
Source Code
This filter is located in GetDiscount() in js/coupons.js.
PHP Version
Parameters
$discount float
The discount amount.
$coupon array
Contains the coupon meta which is copied from the Coupons Feed Meta.
array(
'amount' => 100,
'name' => 'test100',
'type' => 'percentage',
'code' => 'TEST100',
'can_stack' => false,
'usage_count' => 2,
);
$price float
The form total excluding discounts.
$entry Entry Object
The current entry.
Example
This example shows how you can adjust the coupon discount for logged-in users.
add_filter( 'gform_coupons_discount_amount', 'add_logged_in_user_bonus_discount', 10, 4 );
function add_logged_in_user_bonus_discount( $discount, $coupon, $price, $entry ) {
if ( is_user_logged_in() ) {
$discount += 5;
}
return $discount;
}
Placement
Your code snippet should be placed in the functions.php file of your active theme.
Source Code
This filter is located in GFCoupons::get_discount() in class-gf-coupons.php.
Version
The $entry parameter was added to the PHP version of the hook in Coupons version 2.6.3.