How To Hide Card Payment Option If Cart Items Have Diferrent Availability

Store Builder Questions
1

I want to change step_four.tpl or payments_method.tpl to show only offline payment options if any of the session cart items have "Limited stock" or "Out of stock" availability.

What and where do I need to change? What is the variable for the cart items availability?

2

I want to change step_four.tpl or payments_method.tpl to show only offline payment options if any of the session cart items have "Limited stock" or "Out of stock" availability.

What and where do I need to change? What is the variable for the cart items availability?

It is required to extend the fn_prepare_checkout_payment_methods function (app/functions/fn.cart.php). Please check $cart['products'] array to see all extra parameters of each item

3

It is required to extend the fn_prepare_checkout_payment_methods function (app/functions/fn.cart.php). Please check $cart['products'] array to see all extra parameters of each item

Thanks for your reply.

Please let me know if this approach is correct:

1. I should create init.php and func.php in app/addons/my_changes

2. Register the prepare_checkout_payment_methods hook in init.php

3. Create a function called fn_my_changes_prepare_checkout_payment_methods

4

Yes, the described way is correct

5

Yes, the described way is correct

Thanks for your help.

I've managed to get the availability for each product in the cart and check if they are in stock. However I'm a bit confused as to how to overwrite the function output in order to completely eliminate the card payment option.

If you can please have a quick look and point me in the right direction, here's what I've done so far:

if ( !defined(‘AREA’) ) { die(‘Access denied’); }


function fn_my_changes_prepare_checkout_payment_methods($cart, $auth, $payment_groups)

{

$keys = array_keys($cart[‘products’]);


 if($keys != NULL){
	for($i = 0; $i < count($cart['products']); $i++) {
    		foreach($cart['products'][$keys[$i]] as $key => $value) {
        		if($key == "product_id") 
        			$product_ids[] = $value;
    		       }	
		}
	
       foreach ($product_ids as $product_id) {
       // "9" is the feature id for stock availability variants   
       $variant_options[] = db_get_field("SELECT variant_id FROM ?:product_features_values WHERE product_id = ?i AND feature_id = ?s", $product_id, "9");
    }

   $payment_methods = fn_get_payments(array('usergroup_ids' => $auth['usergroup_ids']));
   // "2" - variant_id for "In stock"
   // compare number of products in stock to number of products in cart
   if(count(array_keys($variant_options, '2')) != count($variant_options)){
	foreach ($payment_methods as $k => $v){
	   // "P" - payment gateway processor type
           if ($payment_methods[$k]['processor_type'] == 'P') {
	       unset($payment_methods[$k]);
	    }

         $payment_groups[$v['payment_category']][$k] = isset($payment_methods[$k]) ? $payment_methods[$k] : null;
         }
       }			
}		    

return $payment_groups;



}

Right now, it removes the payment method array with the processor type value "P" from the payment methods array but it doesn't change anything in the checkout payment options.

6

Add & before $payment_groups in the list of arguments. E.g.

function fn_my_changes_prepare_checkout_payment_methods($cart, $auth, &$payment_groups)