ruby – Rails 3.2迭代数组

发布时间：2020-12-17 03:46:44 所属栏目：百科来源：网络整理

导读：我有一个看起来像这样的数组： @shipment_products[ {"old_qty_shipped"="324","product_id"="1","qty_shipped"="12443"} {"old_qty_shipped"="4343423","product_id"="3","qty_shipped"="321344"} {"old_qty_shipped"="23","product_id"="4","qty_shipped"=

我有一个看起来像这样的数组：

@shipment_products
[
  {"old_qty_shipped"=>"324","product_id"=>"1","qty_shipped"=>"12443"}
  {"old_qty_shipped"=>"4343423","product_id"=>"3","qty_shipped"=>"321344"}
  {"old_qty_shipped"=>"23","product_id"=>"4","qty_shipped"=>"321"}
]

我想最终能够做到这样的事情

@shipment_products.each do |p|
  Product.adjust_qtys(p.old_qty_shipped,p.qty_shipped,p.product_id)
end

我收到以下错误

NoMethodError (undefined method `qty_shipped' for #<ActiveSupport::HashWithIndifferentAccess:0x007f>)

这个数组的格式不是很合适.我需要找到一种方法来迭代键/值并提取属性,这样我就可以调用我在模型中创建的方法.有任何想法吗？

解决方法

检查以下代码.

@shipment_products = [ {"old_qty_shipped"=>"324","qty_shipped"=>"12443"},{"old_qty_shipped"=>"4343423","qty_shipped"=>"321344"},{"old_qty_shipped"=>"23","qty_shipped"=>"321"}]

    @shipment_products.each do |p|
      Product.adjust_qtys(p['old_qty_shipped'],p['qty_shipped'],p['product_id'])
    end

（编辑：李大同）

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