getGroupsReductionByCategoryId() getGroupsReductionByCategoryId( $id_category) Parameters $id_category
setProductReduction() setProductReduction( $id_product, $id_group = null, $id_category, $reduction = null) Parameters $id_product $id_group $id_category $reduction
duplicateReduction() duplicateReduction( $id_product_old, $id_product) Parameters $id_product_old $id_product