Disable a shipping method if product qty >=21

[steve_s]

Hi All.

 

Im trying to disable a shipping method if product qty >=21 so request for shipping quote is only available shipping option

 

in checkout_shipping.php i have, i have tested this code below and it works fine

<?php
     $products_query = tep_db_query("select products_id, customers_basket_quantity from " . TABLE_CUSTOMERS_BASKET . " where customers_id = '" . (int)$customer_id . "'");
     $qty=0; //set to false
     while ($products = tep_db_fetch_array($products_query)) {
     if (($products['customers_basket_quantity']) >= 21) {
$qty21=1; // set to true if qty of a product is >=21
}
}
   if (sizeof($quotes) > 1 && sizeof($quotes[0]) > 1) {

?>

 

now in the shipping mod i have added this code

 

 

// class methods

   function quote($method = '') {

     global $order;



// disable the module if  free downloads or product qty >=21

     if ($this->enabled == true) {

       global $cart, $qty21;

      if (($cart->show_total() == 0.00) || ($qty21==1)) {

         $this->enabled = false;

       }

     }

 

but it does not work on $qty21, yet disables it, if product price is 0.00, any one know what i am doing wrong?

 

Thanks for any help in advance

Steve

[burt]

if product qty >=21

 

per product quantity or per cart?

 

If the number of items in the cart >= 21 (in total, widgets AND wodgets)

or

If the number of individual products >=21 (in other words, could they use this shipping method if they had 20 widgets AND 20 wodgets in their cart?)

[steve_s]

if product qty >=21

 

per product quantity or per cart?

 

If the number of items in the cart >= 21 (in total, widgets AND wodgets)

or

If the number of individual products >=21 (in other words, could they use this shipping method if they had 20 widgets AND 20 wodgets in their cart?)

Hi

If the number of individual products >=21 (in other words, could they use this shipping method if they had 20 widgets AND 20 wodgets in their cart) yes it shouldnt be disabled

 

It must only be disabled if a certain product has 21 or more products in the cart

 

So if it was product A qty 11 and product B qty 20, normal shipping should still be enabled

 

Steve

[steve_s]

Hi

If the number of individual products >=21 (in other words, could they use this shipping method if they had 20 widgets AND 20 wodgets in their cart) yes it shouldnt be disabled

 

It must only be disabled if a certain product has 21 or more products in the cart

 

So if it was product A qty 11 and product B qty 20, normal shipping should still be enabled

 

Steve

I just cant understand why $qty21 is not being passed/seen in the shipping module

 

Steve

[MrPhil]

      $qty=0; //set to false

Did you mean

      $qty21=0; //set to false

? Otherwise sometimes $qty21 is set, other times it's not.

 

For booleans, you're probably better off using true and false instead of 1 and 0.

 

I don't know for sure if "globals" will bring in $qty21 for a class function. With classes, variable scoping may be a little bit different than with just plain functions.

 

Anyone familiar enough with OO in PHP to answer this?

[steve_s]

      $qty=0; //set to false

Did you mean

      $qty21=0; //set to false

? Otherwise sometimes $qty21 is set, other times it's not.

 

For booleans, you're probably better off using true and false instead of 1 and 0.

 

I don't know for sure if "globals" will bring in $qty21 for a class function. With classes, variable scoping may be a little bit different than with just plain functions.

 

Anyone familiar enough with OO in PHP to answer this?

Hi Phil,

 

Your right i did mean

      $qty21=0; //set to false

 

Strange thing is the global works on cart

      if ($this->enabled == true) {
       global $cart;
      if ($cart->show_total() == 0.00) {
         $this->enabled = false;
       }
     }

That works fine if cart price is 0.00 shipping module gets disabled

 

Steve

[germ]

Register it as a session variable instead.

[steve_s]

Register it as a session variable instead.

Hi Germ,

 

Are you able to give me an example, i have tried a few varitions

 

in checkout_shipping.php

      tep_session_register('qty21');
     $qty21=0;

 

      tep_session_register(qty21);
     $qty21=0;

 

      tep_session_register('$qty21');
     $qty21=0;

 

tep_session_register($qty21);
     $qty21=0;

 

and keeping or removing global $qty21

in the shipping module and still having no luck

 

Steve

[germ]

I would have coded it like this:

 

      $qty21=0; //set to false
     if ( ! tep_session_is_registered('qty21') )  {
       tep_session_register('qty21');
     }

I've never lost a variable value doing it like that (provided the session isn't lost).

[steve_s]

I would have coded it like this:

 

      $qty21=0; //set to false
     if ( ! tep_session_is_registered('qty21') )  {
       tep_session_register('qty21');
     }

I've never lost a variable value doing it like that (provided the session isn't lost).

Hi Germ,

 

Big thanks that worked

 

Steve