Disable tax for attributes

[Keron83]

Hi!

 

I've got a question about tax and attributes (combinations).

I have a product (Cola 1.5 liters) with the price: €1,83.
This product has a combination that will add €0,25 to the price (deposit money).

So you can buy the product for €2,08.

Prestashop will calculate the tax based on the price: €2,08.

 

What I want and need, is a tax calculation based on the base price €1,83.

 

Where can I change this. (in which file)

 

Thnx!

[matzmu]

I think there is no easy solution.

IF i were you , a will add to databse boolean value (like "addtax") in customizastion table  and  then modify controller to calculate a tax for base price

[m3442a]

I have a similar problem: i need the combination price (price+add combination) on the product.tpl without tax. Prestashop only showing the combination price with tax!

the normal price can showing with and without tax, but not the combination price: this shows only with tax, without show always the combination price "0".

[Keron83]

Fixed it a couple of weeks ago..
I tested it on Prestashop 1.5.5, so dont know if it works for other versions.
Make a backup (classes/product.php) before you try this.

I've added the attribute price rule AFTER tax is added to product price

1) Go to: ./classes/Product.php
2) Search for this code: (line 2653)

		// fetch price & attribute price
		$cache_id_2 = $id_product.'-'.$id_shop;
		if (!isset(self::$_pricesLevel2[$cache_id_2]))
		{
			$sql = new DbQuery();
			$sql->select('product_shop.`price`, product_shop.`ecotax`');
			$sql->from('product', 'p');
			$sql->innerJoin('product_shop', 'product_shop', '(product_shop.id_product=p.id_product AND product_shop.id_shop = '.(int)$id_shop.')');
			$sql->where('p.`id_product` = '.(int)$id_product);
			if (Combination::isFeatureActive())
			{
				$sql->select('product_attribute_shop.id_product_attribute, product_attribute_shop.`price` AS attribute_price, product_attribute_shop.default_on');
				$sql->leftJoin('product_attribute', 'pa', 'pa.`id_product` = p.`id_product`');
				$sql->leftJoin('product_attribute_shop', 'product_attribute_shop', '(product_attribute_shop.id_product_attribute = pa.id_product_attribute AND product_attribute_shop.id_shop = '.(int)$id_shop.')');
			}
			else
				$sql->select('0 as id_product_attribute');

			$res = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($sql);
			
			foreach ($res as $row)
			{
				$array_tmp = array(
					'price' => $row['price'], 
					'ecotax' => $row['ecotax'],
					'attribute_price' => (isset($row['attribute_price']) ? $row['attribute_price'] : null)
				);
				self::$_pricesLevel2[$cache_id_2][(int)$row['id_product_attribute']] = $array_tmp;
				
				if (isset($row['default_on']) && $row['default_on'] == 1)
					self::$_pricesLevel2[$cache_id_2][0] = $array_tmp;
			}
		}
		if (!isset(self::$_pricesLevel2[$cache_id_2][(int)$id_product_attribute]))
			return;

		$result = self::$_pricesLevel2[$cache_id_2][(int)$id_product_attribute];

		if (!$specific_price || $specific_price['price'] < 0)
			$price = (float)$result['price'];
		else
			$price = (float)$specific_price['price'];
		// convert only if the specific price is in the default currency (id_currency = 0)
		if (!$specific_price || !($specific_price['price'] >= 0 && $specific_price['id_currency']))
			$price = Tools::convertPrice($price, $id_currency);

		/*// Attribute price
		if (is_array($result) && (!$specific_price || !$specific_price['id_product_attribute'] || $specific_price['price'] < 0))
		{
			$attribute_price = Tools::convertPrice($result['attribute_price'] !== null ? (float)$result['attribute_price'] : 0, $id_currency);
			// If you want the default combination, please use NULL value instead
			if ($id_product_attribute !== false)
				$price += $attribute_price;
		}*/

		// Tax
		$address->id_country = $id_country;
		$address->id_state = $id_state;
		$address->postcode = $zipcode;

		$tax_manager = TaxManagerFactory::getManager($address, Product::getIdTaxRulesGroupByIdProduct((int)$id_product, $context));
		$product_tax_calculator = $tax_manager->getTaxCalculator();

		// Add Tax
		if ($use_tax)
			$price = $product_tax_calculator->addTaxes($price);

3) Comment out this code:
 

/*// Attribute price
        if (is_array($result) && (!$specific_price || !$specific_price['id_product_attribute'] || $specific_price['price'] < 0))
        {
            $attribute_price = Tools::convertPrice($result['attribute_price'] !== null ? (float)$result['attribute_price'] : 0, $id_currency);
            // If you want the default combination, please use NULL value instead
            if ($id_product_attribute !== false)
                $price += $attribute_price;
        }*/

4) Add the code that from step 3 after these lines (line:2719)
 

	// Add Tax
		if ($use_tax)
			$price = $product_tax_calculator->addTaxes($price);

5) So you get:
 

		// Add Tax
		if ($use_tax)
			$price = $product_tax_calculator->addTaxes($price);
	
		// NB! THE ATTRIBUTE PRICE MUST BE CALCULATED AFTER!!!!! TAXES WERE ADDED:
		
		// Attribute price
		if (is_array($result) && (!$specific_price || !$specific_price['id_product_attribute'] || $specific_price['price'] < 0))
		{
			$attribute_price = Tools::convertPrice($result['attribute_price'] !== null ? (float)$result['attribute_price'] : 0, $id_currency);
			// If you want the default combination, please use NULL value instead
			if ($id_product_attribute !== false)
				$price += $attribute_price;
		}

Hope it works.