Problem with Graduated Prices (StaffelPreis)

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Hi,

 

I'm hoping someone has seen and resolved this one, my PHP knowledge is not good.

 

Graduated prices is not working, the discount is not being applied. Possibly related, I think that in the admin (categories.php), the value is being calculated as an integer. So, a value of ?0.25 actually appears as 0 if I return to the product to edit it.

 

Has anyone seen this, or can anyone help me to help myself with what I think is a problem in the way the value is stored as an integer, instead of with decimal points?

 

I think this is the code that is retrieving the prices into an array...

 

                // Nettopreisberechnung

             {

              $insert_sql_data = array('products_id' => $products_id,

                                  'quantity' => tep_db_prepare_input($HTTP_POST_VARS['quantity'.$s]),

                                  'unitprice' => tep_db_prepare_input($HTTP_POST_VARS['unitprice'.$s]));

              tep_db_perform(TABLE_PRICES, $insert_sql_data);

             }

 

In the database, the decimals are stored correctly, and they display correctly in the catalog.