How to limit the product quantity for specific items in magento -

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i'm setting magento site client sells fabric , other related materials. there minimum of .5 yard 1 fabric product, after that, can go amount, minimum .5. i'm able type in .25, .125, etc. , add shopping cart.

i want apply fabric products (there around 2000 different fabric products) not other types sells on site, rulers, needles, buttons, etc... don't want people able purchase .5 buttons.

thanks

you might need observer monitors checkout_cart_product_add_after event. event passes following parameter:

array('quote_item' => $result, 'product' => $product)

here, check quantity via quote_item , product's category (if it's fabric or not) via product. imagine here remove specific quote item cart if decimal value , not member of 'fabric' category.

good luck.


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