我有这个庞大的嵌套Ruby哈希:
hash_filter = {
"m-ct-filter-bot"=>{
"parameters"=>{
"filter_action"=>"keep", "filter_key"=>"classification.identifier",
"filter_regex"=>nil, "filter_value"=>""
},
"group"=>"Expert", "name"=>"Filter", "module"=>"bots.experts.filter.expert",
"description"=>"modified by mf370"
},
"m-vision-filter-bot"=>{
"parameters"=>{
"filter_action"=>"keep", "filter_key"=>"classification.identifier",
"filter_regex"=>nil, "filter_value"=>""
},
"group"=>"Expert", "name"=>"Filter", "module"=>"bots.experts.filter.expert",
"description"=>"modified by mf370"
},
"m-tele-filter-bot"=>{
"parameters"=>{
"filter_action"=>"keep", "filter_key"=>"classification.identifier",
"filter_regex"=>nil, "filter_value"=>""
},
"group"=>"Expert", "name"=>"Filter", "module"=>"bots.experts.filter.expert",
"description"=>"modified by mf370"
}
}
这个数组:
array_id = ["ct","vision","tele"]
我尝试使用"filter_value"
的值更新每个嵌套哈希上的键array_id
上的值。为了在相应的哈希上有filter_value => ct
,filter_value => vision
,filter_value => tele
。
我有以下代码:
array_id.each do |id|
hash_filter.each_pair do |key, value|
value["parameters"]["filter_value"] = id
end
end
但是,当我运行此代码时,密钥filter_value
始终使用array_id
的最后一个值进行更新,这意味着我的所有哈希值都具有相同的值filter_value => tele
。< / p>
我没有收到任何错误,只是输出不是我所期待的。 你能帮助我吗? :)
谢谢!
答案 0 :(得分:3)
这是因为你迭代array_id
所以你的哈希值总是与这个数组的最后一个元素相同。有很多变种可以解决这个问题。但下次,你应该更加专心;)
感谢@CarySwoveland:
a_id = array_id.dup
hash_filter.each do |_key, value|
value["parameters"]["filter_value"] = a_id.shift
end
hash_filter
此外,对于Ruby v2.4.0,您可以使用新方法:#transform_values
hash_filter.transform_values.with_index do |value, ind|
value["parameters"]["filter_value"] = array_id[ind]
end
hash_filter