Display total tax for each product tax rule

[RomsWebDesign]

Hi,

 

Is there a way to display each total tax in cart summary and invoice ?

Ex.

 

Total tax at 2.5% = 10.00

Total tax at 10% = 15.00

Total tax at 20% = 10.00

Total Tax = 35.00

 

I do not know if I'm clear enough.

[shokinro]

my understanding is that in a shopping cart, you have different products with different tax rate?

 

For invoice, it has been implemented in the way you wanted.

 

I do not think you can do that with default PrestaShop for shopping cart summary.

you may have to customize the shopping cart summary page to implement this way.

Edited May 23, 2016 by shokinro (see edit history)

[RomsWebDesign]

Thanks for your feedback.

Can you tell me how to do this please?

[shokinro]

I am sorry, this is not a simple change that can be explained in a few words.

if you are not familiar with PrestaShop coding, you may consider to try to hire someone to help you.

[RomsWebDesign]

I know Prestashop coding.

Can you explain it to me ?

[shokinro]

I think you will have to make changes to the controller file of shopping cart summary page.

 

/classes/Cart.php

/controllers/front/Controller.php

 

or (recommended)

 

/override/class/Cart.php

/override/controllers/front/CartController.pphp

 

You can the

- using $cart->getProducts() to get all products from shopping cart

- and find out the tax rate for each product and group them together.

- and then calculate total tax amount for each group.

- and then assign the calculated result to Smarty variable 

- so that you can use the smarty variables in theme file of shopping cart

 

/themes/shopping-cart.tpl

[kishanunjia]

/override/class/Cart.php

 

using $cart->getProducts() to get all products from shopping cart and find out the tax rate for each product and group them together.

Add in Cart.php

 

$products = $this->getProducts();

    $virtual_context = Context::getContext()->cloneContext();

 

$address_factory    = Adapter_ServiceLocator::get('Adapter_AddressFactory');

$price_calculator    = Adapter_ServiceLocator::get('Adapter_ProductPriceCalculator');

$configuration        = Adapter_ServiceLocator::get('Core_Business_ConfigurationInterface');

 

$ps_tax_address_type = $configuration->get('PS_TAX_ADDRESS_TYPE');

$ps_use_ecotax = $configuration->get('PS_USE_ECOTAX');

$ps_round_type = $configuration->get('PS_ROUND_TYPE');

$ps_ecotax_tax_rules_group_id = $configuration->get('PS_ECOTAX_TAX_RULES_GROUP_ID');

$compute_precision = $configuration->get('_PS_PRICE_COMPUTE_PRECISION_');

 

$gc_tax_calculation=array();

 

if(!empty($products))

{

 $i=1;

 foreach ($products as $product) {

if ($virtual_context->shop->id != $product['id_shop']) {

$virtual_context->shop = new Shop((int)$product['id_shop']);

}

$ps_tax_address_type = $configuration->get('PS_TAX_ADDRESS_TYPE');

if ($ps_tax_address_type == 'id_address_invoice') {

$id_address = (int)$this->id_address_invoice;

} else {

$id_address = (int)$product['id_address_delivery'];

} 

 

 

if (!$address_factory->addressExists($id_address)) {

$id_address = null;

}

 

            $null = null;

       

 

   

            $org_tax_price = $price_calculator->getProductPrice(

                (int)$product['id_product'],

                false,

                (int)$product['id_product_attribute'],

                6,

                null,

                false,

                true,

                $product['cart_quantity'],

                false,

                (int)$this->id_customer ? (int)$this->id_customer : null,

                (int)$this->id,

                $id_address,

                $null,

                $ps_use_ecotax,

                true,

                $virtual_context

            );

           

 

$address = $address_factory->findOrCreate($id_address, true);

 

$id_tax_rules_group = Product::getIdTaxRulesGroupByIdProduct((int)$product['id_product'], $virtual_context);

 

$tax_calculator = TaxManagerFactory::getManager($address, $id_tax_rules_group)->getTaxCalculator();

 

if(!empty($id_tax_rules_group))

{

 

$tax_rules_name_get='SELECT * FROM  `'._DB_PREFIX_.'tax_rules_group` 

 WHERE id_tax_rules_group = '.$id_tax_rules_group;

$tax_rules_name_get_execute=Db::getInstance()->ExecuteS($tax_rules_name_get);

if(!empty($tax_rules_name_get_execute))

{

  $rule_name=$tax_rules_name_get_execute[0]['name'];

}

 

 

$ff_nal=$tax_calculator->addTaxes($org_tax_price);

 

 

switch ($ps_round_type) {

case Order::ROUND_TOTAL:

$org_tax_price = $org_tax_price * (int)$product['cart_quantity'];

$ff_nal        = $ff_nal * (int)$product['cart_quantity'];

break;

 

case Order::ROUND_LINE:

$org_tax_price = Tools::ps_round($org_tax_price * $product['cart_quantity'], $compute_precision);

$ff_nal = Tools::ps_round($ff_nal * $product['cart_quantity'], $compute_precision);

break;

 

case Order::ROUND_ITEM:

default:

 

$org_tax_price = Tools::ps_round($org_tax_price, $compute_precision) * (int)$product['cart_quantity'];

$ff_nal = Tools::ps_round($ff_nal, $compute_precision) * (int)$product['cart_quantity'];

break;

}

 

if($org_tax_price != $ff_nal)

{

  $product_tax = $ff_nal - $org_tax_price;

  $gc_tax_calculation['tax'.$product['id_product'].'_'.$i]=array('rule'=>$rule_name,'tax'=>$product_tax,

  'id_product'=>$product['id_product'],'grp_id'=>$id_tax_rules_group);

}

}

 

$i++;

 }

 

}

 

$final_tax_logic=array();

if(!empty($gc_tax_calculation))

{

   foreach($gc_tax_calculation as $tax_val)

{

  $grp_id=$tax_val['grp_id'];

  $rule=$tax_val['rule'];

  $tax=$tax_val['tax'];

  $id_product=$tax_val['id_product'];

  if(!isset($final_tax_logic['grp_'.$grp_id]))

  {

    $final_tax_logic['grp_'.$grp_id]=array('rule'=>$rule,'tax'=>$tax,'id_product'=>$id_product,'grp_id'=>$grp_id);

  }

  else

  {

   $old_tax=$final_tax_logic['grp_'.$grp_id]['tax'];

$new_tax=$old_tax + $tax;

$final_tax_logic['grp_'.$grp_id]['tax'] = $new_tax;

  }

}

}

 Assign the calculated result to Smarty variable

 $summary = array(

 'gc_tax_calculation' => $final_tax_logic,

 );

 

 Get calculated result to Smarty variable in shopping-cart.tpl

 

 

{if isset($gc_tax_calculation) && $gc_tax_calculation}                

{foreach from=$gc_tax_calculation item=tax_calculation}

 

<tr class="cart_tax_calculation grp_{$tax_calculation['grp_id']}" id="grp_{$tax_calculation['grp_id']}">

<td colspan="{$col_span_subtotal}" class="text-right">{$tax_calculation['rule']}</td>

<td colspan="2" class="price">{displayPrice price=$tax_calculation['tax']}</td>

</tr>

 

{/foreach}

{/if}

have fun 

Edited June 16, 2017 by kishanunjia (see edit history)