Calculation of variations by package type attribute

[sergioxdev]

Hi Mark congratulations for the excellent job done,

I have a question, suppose we have produced with whose base price 1 $, and we have the following attributes:

• color: red 1, white 2

• size: S 1, M 1.5, L 2

• packaging: 100 pieces 100, 200 pieces 200, 300 pieces 300 or

• packaging: 100 pieces 10000%, 200 pieces 20000%, 300 pieces 30000%

ex.

• (base price 1) + (red 1) + (S 1) + (200 pieces 200) = 203

but if we analyze the result for the packages it is wrong it should be:

• ((base price 1) + (red 1) + (S 1)) (single unit) * (300 pieces 300) = 900 or
• ((base price 1) + (red 1) + (S 1)) (single unit) * (300 pieces 30000%) = 900

it is possible for each attribute to add the following options:

• normal use or quantity / package attribute (if activated this attribute will be multiplied with the sum of all the attributes enabled at the "price per single unit"; if deactivated, operation will be traditional)
• normal use attribute or price per single unit (if activated this attribute will compete to calculate the "price per single unit", and then be multiplied by the number of packages; if deactivated, operation will be traditional)

Thanks in advance for any suggestions Sergio

[Mark-Tomlinson]

Interesting suggestion. I've had other suggestions that an attribute act as a multiplier after the other attributes are calculated, and this is a different take on that.

Essentially, I'd add a checkbox to flag an attribute as a 'multiplier attribute'. If an item had that attribute, then all other markups would be calculated first and the total would be multiplied by the multiplier markup. '9' and '900%' are the same in this case, so it doesn't matter if a regular number or percentage is used. Partial quantities, like 0.5 (50%) or 1.33 (133%) would work as well. So, if an item came as a single unit or a six-pack for a reduced per-unit price, then the attribute might have 'Single' (for 100%) and 'Six-Pack' (for 540%).

My priority is to keep it simple, since the plugin is a hobby for me, and I'd rather not introduce features that raise support questions. This becomes an issue when someone adds two or more multiplier attributes, and then wonders why it isn't working -- it will happen.

If something like this meets your requirements, I'll take a look at the code and see what it will take to do it. Let me know.

[sergioxdev]

Hi Mark

in my opinion a solution could be, add the following select for each attribute: (normal - group - packs)

attribute 1 (normal - is added to the rest of the attributes) attribute 2 (group - is added to a group x, to then be multiplied by the number of packages) attribute 3 (group - is added to a group x, to then be multiplied by the number of packages) attribute 4 (packs - is multiplied with group x)

att_1 = 2 att_2 = 4 att_3 = 5 att_4 = 10 (att_1 + ((att_2 + att_3) att_4)) = (2 + ((4 + 5) 10)) = 92

if you want this selection it is possible to insert it, in the phase of creating the variations, when configuring the list price, in the same popup, when the value to be entered is requested, just display the attributes that contribute to the creation of the price, and for each of they show a select to select the type of behavior (normal - group - packages)

that way, it shouldn't compromise the plugin, and it's relatively simple

[Mark-Tomlinson]

If I make a change to the plug-in, I will probably add a checkbox to the attribute term page beneath the markup. Markup-by-Attribute already has a module for that page, so it would be a relatively simple change.

The trick would be to figure out how to process the multiplier attributes last. Markup-by-Attribute parses through the attributes assigned to each variation in the order that WooCommerce stores them. I can't change the order, so I would have to set multiplier attributes aside and process them when all other attributes are finished for that variation.

I've been looking into this. But, again, this is a hobby. It may be a few weeks before I have incorporated the change.

[sergioxdev]

Hi Mark

obviously I understand that you do it as a hobby, I am available to help you.