[SOLVED] How to change the method of calculation of the final price

[And63]

We have in Prestashop weight as possible in terms of promotions, discounts for groups of customers for a given product category.

 

My question relates to a method of calculating the final price - where is it made​​?

 

Namely, we have the product for retail 1000€ D, but our regular customers we give him 10% (discount for group in category) off R

- Price displayed about -900 €.

We're doing great promotion and lowering prices for the week for only one product of 200 € (special price) S

 

K now the final price is calculated according to the formula:

 

K = (D-(D * R)) - (S-(S * R)) is:

K = (1000 - (1000 * 10%) - (200 - (200 * 10%))

K = 900 - 180

K = 720€

 

But I want to make the price of this product was on special offer

K = D-S

K = 1000€ - 200€

K = 800€

 

 

An example of the output price € 1000

 

http://ar.az.pl/flashitall/unique-flash-drives/7-ecouteurs-a-isolation-sonore-shure-se210-blanc.html

 

prestashop 1.5.4.1

 

Sorry for my english

Edited September 16, 2013 by And63 (see edit history)

[PascalVG]

Isn't it not easier to just discount not an extra 200, but just 111.11?

 

1000 - (1000 x10%) - (111.11 - (111.11 x 10%) =

1000 - (100) - (111.11 - (11.111) =

900 - 99.999 = 800.001 = 800

 

 

My 2 cents,

pascal

[And63]

Hi Pascal.

I'm in my store 10 groups of customers with various discounts categories.

Counting every week that I have set the price for which the group would be too cumbersome.

So I modified the core system already for their needs and hopes as I want to.

 

Since the problem solved - Mark Topic as resolved

[PascalVG]

Hi And,

just for completeness sake, can you share the solution you made? Which file(s)/function(s) you changed etc? This way others with similar questions can use this as a good start :-)

 

Thx!

 

Happy selling,

pascal.

[And63]

Hi Pascal.

The solution that I used is not universal.

Assumptions were the:

The store does not and will not be used as a special price reduction %

Discounts for groups of clients assigned to a category of products do not affect the special price.

Price added in the BO as a special price is displayed as the reduction in price, so far is an added reduction.

Price of the product added in this way is valid in store for client groups which has been allocated.

The reduction applies only to the specific product.

Each product can be assigned a different price special.

Discounts for groups of clients assigned to a category of products do not affect the special price.

 

 

Solution:

 

In file /classes/Product.php:

change code from:

if ($use_group_reduction)
		{
			if ($reduction_from_category = (float)GroupReduction::getValueForProduct($id_product, $id_group))
				$price -= $price * $reduction_from_category;
			else // apply group reduction if there is no group reduction for this category
				$price *= ((100 - Group::getReductionByIdGroup($id_group)) / 100);
		}

to:

if ($use_group_reduction)
		{ 
                        if ($specific_price)
                            $price = $specific_price['reduction'];
			else if ($reduction_from_category = (float)GroupReduction::getValueForProduct($id_product, $id_group))
				$price -= $price * $reduction_from_category;
			else // apply group reduction if there is no group reduction for this category
				$price *= ((100 - Group::getReductionByIdGroup($id_group)) / 100);
		}

That's it - goal achieved 

 

[PascalVG]

Thanks for sharing!

[onlinerepa]

Final Retail Price does not calculate.

 

I have for my pretax listed, tax amount selected but the Final Retail Price does not calculate. Are there any changes that I need to make in my setup?

 

Thank youf or your assistance.

Edited September 30, 2013 by onlinerepa (see edit history)

[And63]

I modified some patch and now it is added correctly. 

conditions: 

If the product has a discount category is not applicable it at a special price:

 

if ($use_group_reduction)

		{ 

                        if ($specific_price)

                            $price += $price * $reduction_from_category = (float)GroupReduction::getValueForProduct($id_product, $id_group);

			else if ($reduction_from_category = (float)GroupReduction::getValueForProduct($id_product, $id_group))

				$price -= $price * $reduction_from_category;

			else // apply group reduction if there is no group reduction for this category

				$price *= ((100 - Group::getReductionByIdGroup($id_group)) / 100);

		}