wordpress add multiple callback function to single ajax action from different plugin

Question

I was trying to add one more callback function to wordpress ajax action

woocommerce_apply_coupon

this wp_ajax action is defined in woocommerce plugin,I want to add my own callback function on this action from my plugin file .

what i have tried -

add_action( 'wp_ajax_nopriv_woocommerce_apply_coupon','darn',999);
add_action( 'wp_ajax_woocommerce_apply_coupon', 'darn',999);

function darn(){
         print_r($_REQUEST);
         exit;
    }

Doing this in my functions.php is not even showing any error, like i cant see any effect of this code.

want to know if this is even possible to achieve . Thankyou.

How do you enable Ajaxified coupons? I cannot seem to find the option. Is it made available by the theme? — brasofilo
– brasofilo, Commented Aug 22, 2013 at 12:36
it has nothing to do with theme, coupons are applied via ajax on checkout page. have a look — Prince Singh
– Prince Singh, Commented Aug 22, 2013 at 12:39

Prince Singh · Accepted Answer · 2013-08-22 12:47:11Z

2

well i would like to answer my own question since nobody seems to answer it .

add_action( 'wp_ajax_nopriv_woocommerce_apply_coupon','darn',1);
add_action( 'wp_ajax_woocommerce_apply_coupon', 'darn',1);

function darn(){
         print_r($_REQUEST);
         exit;
    }

by setting priority to one (giving my callback function the top priority) it actually worked !

answered Aug 22, 2013 at 12:47

Prince Singh

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Comments

brasofilo · Accepted Answer · 2013-08-22 12:40:51Z

1

This is untested, but I'd try to solve it removing the original actions after all plugins are loaded, and then adding your substitute:

add_action( 'plugins_loaded', 'b5f_new_ajax_coupon', 15 );

function b5f_new_ajax_coupon() 
{
    remove_action( 'wp_ajax_woocommerce_apply_coupon', 'woocommerce_ajax_apply_coupon' );
    remove_action( 'wp_ajax_nopriv_woocommerce_apply_coupon', 'woocommerce_ajax_apply_coupon' );
    add_action( 'wp_ajax_woocommerce_apply_coupon', 'b5f_ajax_apply_coupon' );
    add_action( 'wp_ajax_nopriv_woocommerce_apply_coupon', 'b5f_ajax_apply_coupon' );
}   

function b5f_ajax_apply_coupon()
{
    // COPY THE ORIGINAL /woocommerce/woocommerce-ajax.php#L57
    // AND ADAPT TO YOUR NEEDS
}

answered Aug 22, 2013 at 12:40

brasofilo

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1 Comment

Prince Singh Over a year ago

i have resolved this issue, thankyou for your help though :) it was priority which was bugging me !

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