[Skip to main content](#vessel-content) # Problem with calculation of product price by "decimal" length ## - **[yanliom](/forum/user/45218-yanliom "View yanliom's Profile")** - [![yanliom's Avatar](https://www.hikashop.com/media/kunena/core/svg/person.svg)](/forum/user/45218-yanliom "View yanliom's Profile") Topic Author - [ Offline](/forum/user/45218-yanliom) Less More - Posts: 66 - Thank you received: 1 - - 10 months 3 weeks ago [\#369772](#369772) by [yanliom](/forum/user/45218-yanliom "View yanliom's Profile") *[Problem with calculation of product price by "decimal" length](/forum/26-product-category-display/909979-problem-with-calculation-of-product-price-by-decimal-length#369772 "-- url of the page with the problem -- : www.ravopleko.gr -- HikaShop version -- : 6.1.1 -- Joomla version -- : 5.4.1 -- PHP version -- : 8.3 Hello, I'm using your solution for calculating product price by length. See topics: -https://www.hikashop.com/forum/product-category-display/898379-calculate-product-price-by-length.html -https://www.hikashop.com/forum/product-category-display/898421-decimal-calculate-product-price-by-length.html But at the cart the price is calculated wrong. Please see the attached screenshot were I'm testing various possibilities (I removed any restrictions for testing purposes).")* was created by *[yanliom](/forum/user/45218-yanliom "View yanliom's Profile")* -- url of the page with the problem -- : [ www.ravopleko.gr](https://www.ravopleko.gr) -- HikaShop version -- : 6.1.1 -- Joomla version -- : 5.4.1 -- PHP version -- : 8.3 Hello, I'm using your solution for calculating product price by length. See topics: -https://www.hikashop.com/forum/product-category-display/898379-calculate-product-price-by-length.html -https://www.hikashop.com/forum/product-category-display/898421-decimal-calculate-product-price-by-length.html But at the cart the price is calculated wrong. Please see the attached screenshot were I'm testing various possibilities (I removed any restrictions for testing purposes). - [ ![2025-12-18145719.png](/forum/attachment/61061) ](/forum/attachment/61061 "...2-18145719.png") [ ](/forum/attachment/61061?download=1 "...2-18145719.png") Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI2LXByb2R1Y3QtY2F0ZWdvcnktZGlzcGxheS85MDk5NzktcHJvYmxlbS13aXRoLWNhbGN1bGF0aW9uLW9mLXByb2R1Y3QtcHJpY2UtYnktZGVjaW1hbC1sZW5ndGg/dG1wbD1tYXJrZG93bg==) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[nicolas](/forum/user/63-nicolas "View nicolas's Profile")** - [![nicolas's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar63.png?1793428657)](/forum/user/63-nicolas "View nicolas's Profile") - [ Offline](/forum/user/63-nicolas) Less More - Posts: 86359 - Thank you received: 14296 - - 10 months 3 weeks ago [\#369773](#369773) by [nicolas](/forum/user/63-nicolas "View nicolas's Profile") Replied by *[nicolas](/forum/user/63-nicolas "View nicolas's Profile")* on topic *[Problem with calculation of product price by "decimal" length](/forum/26-product-category-display/909979-problem-with-calculation-of-product-price-by-decimal-length#369773 "-- url of the page with the problem -- : www.ravopleko.gr -- HikaShop version -- : 6.1.1 -- Joomla version -- : 5.4.1 -- PHP version -- : 8.3 Hello, I'm using your solution for calculating product price by length. See topics: -https://www.hikashop.com/forum/product-category-display/898379-calculate-product-price-by-length.html -https://www.hikashop.com/forum/product-category-display/898421-decimal-calculate-product-price-by-length.html But at the cart the price is calculated wrong. Please see the attached screenshot were I'm testing various possibilities (I removed any restrictions for testing purposes).")* Hi, I suppose you're using the plugin [ www.hikashop.com/marketplace/product/221...quantity-plugin.html](https://www.hikashop.com/marketplace/product/221-shopcustom-quantity-plugin.html) So, the probably is probably with your custom item field. The column name of the custom field must be exactly "ordered_length". Otherwise, it will be ignored by the plugin. Alternatively, you can use the price calculations plugin: [ www.hikashop.com/marketplace/product/148...ce-calculations.html](https://www.hikashop.com/marketplace/product/148-price-calculations.html) It has many advantages over the plugin you're using: - you can have different fields for different products - you can enter complex calculation formulas, not just price * value, and you can combine the value from different fields if necessary - the plugin directly displays a "calculated price" on the product page when a field value is changed. Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI2LXByb2R1Y3QtY2F0ZWdvcnktZGlzcGxheS85MDk5NzktcHJvYmxlbS13aXRoLWNhbGN1bGF0aW9uLW9mLXByb2R1Y3QtcHJpY2UtYnktZGVjaW1hbC1sZW5ndGg/dG1wbD1tYXJrZG93bg==) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[yanliom](/forum/user/45218-yanliom "View yanliom's Profile")** - [![yanliom's Avatar](https://www.hikashop.com/media/kunena/core/svg/person.svg)](/forum/user/45218-yanliom "View yanliom's Profile") Topic Author - [ Offline](/forum/user/45218-yanliom) Less More - Posts: 66 - Thank you received: 1 - - 4 months 4 weeks ago - 4 months 4 weeks ago [\#372226](#372226) by [yanliom](/forum/user/45218-yanliom "View yanliom's Profile") Replied by *[yanliom](/forum/user/45218-yanliom "View yanliom's Profile")* on topic *[Problem with calculation of product price by "decimal" length](/forum/26-product-category-display/909979-problem-with-calculation-of-product-price-by-decimal-length#372226 "-- url of the page with the problem -- : www.ravopleko.gr -- HikaShop version -- : 6.1.1 -- Joomla version -- : 5.4.1 -- PHP version -- : 8.3 Hello, I'm using your solution for calculating product price by length. See topics: -https://www.hikashop.com/forum/product-category-display/898379-calculate-product-price-by-length.html -https://www.hikashop.com/forum/product-category-display/898421-decimal-calculate-product-price-by-length.html But at the cart the price is calculated wrong. Please see the attached screenshot were I'm testing various possibilities (I removed any restrictions for testing purposes).")* Hello, you have to provide an updated version of the plugin: [ www.hikashop.com/marketplace/product/221...quantity-plugin.html](https://www.hikashop.com/marketplace/product/221-shopcustom-quantity-plugin.html) I changed the code so that it works with the new Hikashop versions. I don't know if it is 100% correct. Best, Yannis Code: <?php jimport('joomla.plugin.plugin'); class plgSystemCustom_quantity extends JPlugin{ } if(!function_exists('fid_custom_quantity_normalize_length')) { function fid_custom_quantity_normalize_length($value) { $value = trim((string) $value); $value = str_replace(',', '.', $value); return (float) $value; } } if(!function_exists('hikashop_product_price_for_quantity_in_cart') && !function_exists('hikashop_product_price_for_quantity_in_order')) { function hikashop_product_price_for_quantity_in_cart(&$product){ $currencyClass = hikashop_get('class.currency'); $quantity = @$product->cart_product_quantity; $ordered_length = 1; if(!empty($product->ordered_length)){ $ordered_length = fid_custom_quantity_normalize_length($product->ordered_length); } $currencyClass->quantityPrices($product->prices, $quantity, $product->cart_product_total_quantity); if($ordered_length > 0 && $ordered_length != 1 && !empty($product->prices)) { foreach($product->prices as $k => $price) { if(isset($price->price_value)) { $product->prices[$k]->price_value = (float) $price->price_value * $ordered_length; } if(isset($price->price_value_with_tax)) { $product->prices[$k]->price_value_with_tax = (float) $price->price_value_with_tax * $ordered_length; } } } } function hikashop_product_price_for_quantity_in_order(&$product){ $quantity = $product->order_product_quantity; if(!empty($product->ordered_length)){ $ordered_length = fid_custom_quantity_normalize_length($product->ordered_length); $quantity = $quantity * $ordered_length; } $product->order_product_total_price_no_vat = $product->order_product_price * $quantity; $product->order_product_total_price = ($product->order_product_price + $product->order_product_tax) * $quantity; } } Last edit: 4 months 4 weeks ago by [nicolas](/forum/user/63-nicolas "View nicolas's Profile"). Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI2LXByb2R1Y3QtY2F0ZWdvcnktZGlzcGxheS85MDk5NzktcHJvYmxlbS13aXRoLWNhbGN1bGF0aW9uLW9mLXByb2R1Y3QtcHJpY2UtYnktZGVjaW1hbC1sZW5ndGg/dG1wbD1tYXJrZG93bg==) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[nicolas](/forum/user/63-nicolas "View nicolas's Profile")** - [![nicolas's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar63.png?1793428657)](/forum/user/63-nicolas "View nicolas's Profile") - [ Offline](/forum/user/63-nicolas) Less More - Posts: 86359 - Thank you received: 14296 - - 4 months 4 weeks ago [\#372229](#372229) by [nicolas](/forum/user/63-nicolas "View nicolas's Profile") Replied by *[nicolas](/forum/user/63-nicolas "View nicolas's Profile")* on topic *[Problem with calculation of product price by "decimal" length](/forum/26-product-category-display/909979-problem-with-calculation-of-product-price-by-decimal-length#372229 "-- url of the page with the problem -- : www.ravopleko.gr -- HikaShop version -- : 6.1.1 -- Joomla version -- : 5.4.1 -- PHP version -- : 8.3 Hello, I'm using your solution for calculating product price by length. See topics: -https://www.hikashop.com/forum/product-category-display/898379-calculate-product-price-by-length.html -https://www.hikashop.com/forum/product-category-display/898421-decimal-calculate-product-price-by-length.html But at the cart the price is calculated wrong. Please see the attached screenshot were I'm testing various possibilities (I removed any restrictions for testing purposes).")* Hi, I've updated the plugin. Thanks for the feedback. Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI2LXByb2R1Y3QtY2F0ZWdvcnktZGlzcGxheS85MDk5NzktcHJvYmxlbS13aXRoLWNhbGN1bGF0aW9uLW9mLXByb2R1Y3QtcHJpY2UtYnktZGVjaW1hbC1sZW5ndGg/dG1wbD1tYXJrZG93bg==) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. 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