Created
September 24, 2010 15:10
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| def subproduct? | |
| !self.parent.blank? | |
| end | |
| def self.not_sub | |
| returning [] do |value| | |
| Product.each do |x| | |
| if !x.subproduct? | |
| value << x | |
| end | |
| end | |
| end | |
| end |
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En SQL c'est mieux en effet :
scope :not_sub, lambda {
joins("left join product_joins on products.id =
product_joins.sub_product_id").where('product_joins.product_id' => nil)}