Quantity discount per category

[Willem Couwenberg]

Hi,

How can you set up quantity discount for a category op products?

I have a postcard & poster shop vm 1.1.3 . I would like to give the 5th card for free if they buy 5 cards.

There has been posted on this subject here:http://forum.virtuemart.net/index.php?topic=40421.0
but no solutions given yet.

Thanks for your trouble,
Regards,
Willem-Hein

[Willem Couwenberg]

Well sometimes luck is with you in the world of open source : Lee Willis had a partial solution for quantity discount per category applicable to only one category.
See his website: http://www.leewillis.co.uk/virtuemart-category-discounts/for this solution. Works like charm on my http://www.vespaghetti.eu website

Now I'm trying to figure out how all categories can have category discount.

Regards,
Willem-hein

[lwillis]

Willem had asked over on my blog if he thought my solution could work for "multiple categories". I previously said no - however a bit of elaboration below!

As I see it there are 2 main solutions that you might want:

Scenario a:
My related products are spread across multiple products (A, B, C). If I buy 2 or more products (Which are all priced identically) from any of these categories then I should receive a discount.

Scenario b:
I have 2 categories (A and B). Each category contains different products both of which have their own discount scheme. If I buy 2+ products from cat A then I receive a special price. If I buy 2+ products from cat B then I receive a special price. However - if I buy 1 product from category A and 1 from category B then there is no discount.


Solution A can be achieved easily with my solution (I do it myself for baby shoes where the products are split across 2 categories - one for boys styles, and one for girls). (Basically you just turn the

Code: [Select]

if ($sesprodcat == 28)check into an OR condition, e.g.

Code: [Select]

if ($sesprodcat == 28 || $sesprodcat == 29) {
Solution B could be made to work I think but it'd be a bit more work ...

[Willem Couwenberg]

Now that write about it: there is always a need for more, it seems.... actually I wanted both scenario's but it looked to complicated to fix.
 
1. a quantum discount within each of the 5 categories, if you buy 5 or more products from the same category you get a lower price.

plus

2. If you buy a combination of  3 products (postcards for €2,85) from category A and product B2 (a poster for €17.95) from Category B you get a discount.

scenario 1 is the most important for me, do you see an solution for this within your hack?

[lwillis]

Hmm. Thinking about it some more....

The changes I put in my last reply will achieve your scenario 1. So if your categories were IDs 1,2,3,4,5 then it would be:

Code: [Select]

if ($sesprodcat == 1 ||
          $sesprodcat == 2 ||
          $sesprodcat == 3 ||
          $sesprodcat == 4 ||
          $sesprodcat == 5) {
If you want to allow a discount based on products from different categories the fix is slightly different (& more complicated!)

[stevenjcarr]

Here is a mod to make this work across multiple categories.  Basically you need to copy the list of category ids you used around the if statement at line 1619:

Code: [Select]

if ($sesprodcat == 4 ||
$sesprodcat == 5 ||
$sesprodcat == 6 ||
$sesprodcat == 7 ||
$sesprodcat == 10 ||
$sesprodcat == 13) {
Down to line 1651 so that they match:

Code: [Select]

                                                if ($sesprodchildcat == 4 || $sesprodchildcat == 5 ||$sesprodchildcat == 6 ||$sesprodchildcat == 7 ||$sesprodchildcat == 10 ||$sesprodchildcat == 13) {
                                                        $quantity += $cart[$i]["quantity"];
                                                }

} else {
Hope this helps.

[lwillis]

You need to be fairly careful with these changes as there are quite a few subtly different results that can be achieved and you need to be sure which one you want!

My post (#4) above is:
Multiple discounts applied if you buy >1 product within cat 1 OR >1 product within cat 2. The discount is based on the number of products being purchase in that category, e.g. If you buy 2 products in cat 1, and 3 products in cat 2 then the products in cat 1 are charged at the price for "2 items" and the products in cat 2 are charged at the price for "3 items".

Steven's post is
Multiple discounts applied if you buy >1 product within cat 1 OR >1 product within cat 2. The discount is based on the number of products being purchase over all participating categories, e.g. If you buy 2 products in cat 1, and 3 products in cat 2 then the products in both categories are charged at the price for "5 items".

[stevenjcarr]

Correct.  In our case the store sells greeting cards and everything is priced at $3.75 per card.  Cards are in several categories and our client wanted a blanket policy allowing any cards from any categories of cards to calculate at the same breaks.  In this case, you purchase 5-9 cards they are $3.00 even and 10+ are $2.50. 

The other thing this allows you to do is omit other categories from the bulk discount.  We have a section of invitations that are not included so that category is omitted from the code above.

Certainly this is not a good solution for all the scenarios, but it seems perfect for out case.

[mms]

Hi,

I have the exact same scenario where I want to have discounts across multiple categories (buy any grouping from categories A,B,C that adds up to at least 12 items, get them for $XX.00, but Category D is excluded from all discounts). I have read and re-read both the original blog post and all these informative forum posts, but not being very confident with code of this complexity, I was hoping to find a helpful soul who will lead me by the hand step by step through the process. Do I still need to change all my items to the bulk pricing within VM? And exactly what file and line numbers am I looking for to edit?

This seems like such a vital choice to have in any online store, it's hard to understand why it's not a part of VM's core...

By the way, I'm using J1.5, VM1.1.3

Thanks so much in advance!!
M Snyder

[duwel]

Hello, i don't know if this is what you're looking for? But it´s worth the try: http://www.bureauvanvliet.com/virtuemart-category-discount.html

[sip]

Hello, i don't know if this is what you're looking for? But it´s worth the try: http://www.bureauvanvliet.com/virtuemart-category-discount.html

Wow, this was close. I just needed one more step to assign the discount to a group. So, it would be category / discount / group.

It can be done for each product. I may have to see if I can create this solution.

[nonki212]

thank you for the hack
it workes perfectly
thank you

[Francois]

I have been searching for an answer for weeks.
I am looking for what I think is a combination of the two hacks mentioned above.

My scenario:
If the total quantity ordered is more than 5 items, all the individual category discounts apply.

All products in each category has the same price, but each category has different prices. I am trying find a way around the customer not getting any discounts if they order less than 5 items from each category.

Could anybody please point me in the right direction. Does anyone know of a free or commercial plugin that can achieve this? Any help will be appreciated!

[closeupman]

Hello, i don't know if this is what you're looking for? But it´s worth the try: http://www.bureauvanvliet.com/virtuemart-category-discount.html

Nice, but not what this topic was meant for. We want to apply bulk pricing for all products in selected categories. That component, while a great idea(no hacking needed) only applies a discount to a category, it doesn't allow for using bulk pricing.

[closeupman]

Never mind, got it to work using the topic link above, just had to add another category using ||.

Would be nice if there's someway to hack it to allow using the parent category (e.g. I have a parent category with no items in it, but I subdivided it into 3 categories. I'd rather just put the parent category in the patch rather than all 3 child categories. I tried it and it only works if you put in categories with actual items--in my case the child categories).