Question

我有以下搜索结果（json）我需要与模型联系（我扩展了第一个以使其更具可读性：

{"products_matched": 
    { "89": //<-- this is a product ID
        { "lines": {
                "0": {
                    "meta_count": 6, 
                    "metas": {
                        "0": [0, 4], "1": [0, 4], "2": [0, 1], "3": [1, 2], "4": [2, 3], "5": [3, 4] 
                    }
                }, 
                "1": {
                    "meta_count": 5, 
                    "metas": {
                        "0": [0, 4], "1": [0, 4], "2": [0, 1], "3": [1, 2], "4": [2, 3]
                    }
                }
            },
        "product_score": 0.0
        } ,
"82": {"lines": {"0": {"meta_count": 2, "metas": {"0": [0, 4], "1": [0, 4]}}}, "product_score": 0.55},
"60": {"lines": {"0": {"meta_count": 3, "metas": {"0": [0, 4], "1": [0, 4], "2": [3, 4]}}}, "product_score": 0.0},
"10": {"lines": {"0": {"meta_count": 2, "metas": {"0": [0, 4], "1": [0, 4]}}}, "product_score": 0.0}}
}

在rails中，如何返回模型对象和附加到id的关联元数据（行）？

到目前为止我所拥有的：

product_ids = results["products_matched"].keys   # => ["89", "82", "60", "10"]

products =  Product.where(id: product_ids)     # => #<ActiveRecord::Relation [#<Product id: 82, name: ...],[...] ...>

我可以尝试在一个实例变量下收集/映射它们，或者我可以单独发送它们，但是这样就可以将两者结合起来了。

Answer 1

简单的解决方案，我不知道它是否是最好的，但我刚刚向attr_accessor模型添加了Product。

attr_accessor :result

然后我遍历产品：

product_ids = results["products_matched"].keys   # => ["89", "82", "60", "10"]
@products =  Product.where(id: product_ids)   

@products.each do |p|
    p.result = results["parsers_matched"][p.id.to_s]
end

返回使用model - rails搜索结果元数据

1 个答案: