need help removing action from plugin file

Question

Hello I am trying to remove an action from a wordpress plugin file. The plugin is called Woocommerce Points and Rewards. I have found the action I want to remove in one of the

Answer 1

In case anyone else is wondering, I just accomplished removing the action in this plugin in the following way.

I wanted to remove the action defined in class-wc-points-rewards.php on line 34:

add_action( 'woocommerce_single_product_summary', array( $this, 'render_product_message' ) );

To do that, I looked at woocommerce-points-and-rewards.php. On line 46 it shows:

$GLOBALS['wc_points_rewards'] = new WC_Points_Rewards();

And in the same file for the definition of the WC_Points_Rewards class, on line 249-250 it shows:

require( 'includes/class-wc-points-rewards-product.php' );
$this->product = new WC_Points_Rewards_Product();

With that information, I was able to remove the action:

remove_action( 'woocommerce_single_product_summary', array( $GLOBALS['wc_points_rewards']->product, 'render_product_message' ) );

Answer 2

I was able to figure out how to remove the render_redeem_points_message effectively with the following code:

/* Removes render_redeem_points_message() */
function wc_remove_points_message() {
    global $woocommerce;
    global $wc_points_rewards;

    // Removes message from cart page
    remove_action( 'woocommerce_before_cart', array( $wc_points_rewards->cart, 'render_redeem_points_message' ), 16 );

    // Removes message from checkout page
    remove_action( 'woocommerce_before_checkout_form', array( $wc_points_rewards->cart, 'render_redeem_points_message' ), 6 );

}
// Removes action on init
add_action( 'init', 'wc_remove_points_message' );

To share a bit more, I wanted to create a minimum purchase amount to be able to redeem points:

/* Adds Minimum Order for Points Redemption */
function wc_min_order_points_message() {
    global $woocommerce;
    global $wc_points_rewards;

    // Get cart subtotal, excluding tax
    $my_cart_total = $woocommerce->cart->subtotal_ex_tax;

    if ($my_cart_total < 30) { // $30 minimum order

        remove_action( 'woocommerce_before_cart', array( $wc_points_rewards->cart, 'render_redeem_points_message' ), 16 );
        remove_action( 'woocommerce_before_checkout_form', array( $wc_points_rewards->cart, 'render_redeem_points_message' ), 6 );

    } // endif $my_cart_total


}
// Adds action for cart and checkout pages instead of on init
add_action( 'woocommerce_before_cart', 'wc_min_order_points_message' );
add_action( 'woocommerce_before_checkout_form', 'wc_min_order_points_message' );

I hope this helps anyone else trying to similarly expand on the WooCommerce Points and Rewards plugin.

Answer 3

exactly this function worked for me

if (class_exists('WC_Points_Rewards')) {
global $woocommerce, $wc_points_rewards;
   remove_action( 'woocommerce_before_cart', array( $wc_points_rewards->cart, 'render_earn_points_message' ), 15 );     
   remove_action( 'woocommerce_before_cart', array( $wc_points_rewards->cart, 'render_redeem_points_message' ), 16 );
}

Answer 4

SOLUTION-1: In this case, as we have the plugin object's global instance, then we can do it easily:

remove_action('woocommerce_before_cart',array($GLOBALS['wc_points_rewards']->cart,'render_redeem_points_message'),16);

SOLUTION-2: We will not be lucky always like the above solution getting the instance of the class object if any plugin author creates the class object anonymously without storing it to any global variables or keeping no method which can return it's own instance. In those cases, we can use the following :)

//keeping this function in our functions.php
function remove_anonymous_object_action( $tag, $class, $method, $priority=null ){

    if( empty($GLOBALS['wp_filter'][ $tag ]) ){
        return;
    }

    foreach ( $GLOBALS['wp_filter'][ $tag ] as $filterPriority => $filter ){
        if( !($priority===null || $priority==$filterPriority) )
            continue;

        foreach ( $filter as $identifier => $function ){
            if( is_array( $function)
                and is_a( $function['function'][0], $class )
                and $method === $function['function'][1]
            ){
                remove_action(
                    $tag,
                    array ( $function['function'][0], $method ),
                    $filterPriority
                );
            }
        }
    }
}

And calling the following line appropriately when we need (may be with a hook or something):

//-->Actual Target: this line does not work;
//remove_action( 'personal_options', array('myCRED_Admin','show_my_balance') );

//-->But instead this line will work ;)
remove_anonymous_object_action('personal_options','myCRED_Admin','show_my_balance');

Answer 5

Try this:

// Use the class name instead of a globalized $this
remove_action( 'woocommerce_before_cart', array( 'WC_Points_Rewards_Cart_Checkout', 'render_redeem_points_message' ), 16 );

As $this is an internal referrer to the class it is used in, globalizing it may not be a good thing.

Does the plugin allow you to extend the class with your own and use it instead?

Answer 6

you found a solution for this? having the same problem with another wc plugin ;)

alright. found an answer in the wc docs. in my case:

function wc_move_checkout_addons() {
    remove_action( 'woocommerce_checkout_after_customer_details', array( $GLOBALS['wc_checkout_add_ons']->frontend, 'render_add_ons' ) ); 
    add_action( 'woocommerce_checkout_before_customer_details', array( $GLOBALS['wc_checkout_add_ons']->frontend, 'render_add_ons' ) );
}
add_action( 'init', 'wc_move_checkout_addons' );

so in your case it should be something like that:

function wc_remove_message() {
    remove_action( 'woocommerce_before_cart', array( $GLOBALS['wc_points_rewards_cart_checkout']->frontend, 'render_redeem_points_message' ) ); 
}
add_action( 'init', 'wc_remove_message' );