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我想平坦的嵌套哈希。我的散列具有这种结构:在哈希数组中转换红宝石嵌套哈希
{
"asNew":"N",
"categoryId":40000007,
"categoryName":"CATALOGO",
"categoryType":"TYPE_NODE",
"contentId":40000007,
"contentTitle":"CATALOGO",
"contentType":"CATEGORY_NODE",
"orderId":0,
"urlPictures":""
}
基本上每个键“所属分类”具有阵列值和:
{
"errorDescription":"",
"message":"",
"resultCode":"OK",
"resultObj":{
"categoryList":[
{
"asNew":"N",
"categoryId":40000000,
"categoryList":[
{
"asNew":"N",
"categoryId":40000007,
"categoryList":[
],
"categoryName":"CATALOGO",
"categoryType":"TYPE_NODE",
"contentId":40000007,
"contentTitle":"CATALOGO",
"contentType":"CATEGORY_NODE",
"orderId":0,
"urlPictures":""
},
{
"asNew":"N",
"categoryId":40000018,
"categoryList":[
{
"asNew":"N",
"categoryId":40000019,
"categoryList":[
],
"categoryName":"CANALI CALCIO",
"categoryType":"TYPE_VOD",
"contentId":40000019,
"contentTitle":"CALCIO & SPORT",
"contentType":"CATEGORY_LEAF",
"orderId":0,
"urlPictures":""
},
{
"asNew":"N",
"categoryId":40000020,
"categoryList":[
],
"categoryName":"CANALI CINEMA",
"categoryType":"TYPE_VOD",
"contentId":40000020,
"contentTitle":"CINEMA & SERIE",
"contentType":"CATEGORY_LEAF",
"orderId":1,
"urlPictures":""
}
],
"categoryName":"CANALI TV",
"categoryType":"TYPE_NODE",
"contentId":40000018,
"contentTitle":"CANALI TV",
"contentType":"CATEGORY_NODE",
"orderId":1,
"urlPictures":""
}
],
"categoryName":"ROOT",
"categoryType":"TYPE_NODE",
"contentId":40000000,
"contentTitle":"ROOT",
"contentType":"",
"orderId":0,
"urlPictures":""
}
]
}
}
我必须在对象的数组,其中每个对象具有这种结构该散列变换这个数组有一个或多个散列与另一个键“categoryList”。我必须将每个categoryList数组中的所有对象移动到另一个没有categoryList'键'的数组中。
编辑
我加入这个方法凑类
class Hash
def find_all_values_for(key)
result = []
result << self[key]
unless self.values.nil?
self.values.each do |values|
values = [values] unless values.is_a? Array
values.each do |value|
result += value.find_all_values_for(key) if value.is_a? Hash
end
end
end
result.flatten.compact
end
end
而我得到的阵列删除所属分类键
h.map { |c| c.except!('categoryList') }
它的工作原理,但meybe还有一个更地图高效的方式。
我建议你拿一把砍刀作为例子,以减少它到最基本的要领。例如,可以在你的对象数组中的哈希值只是:'{ “asNew”: “N”, “的categoryId”:40000007, “类别名称”: “CATALOGO”, “categoryType”: “TYPE_NODE” }'?另外,如果'h'是你的哈希,是不是希望平坦化?h [“categoryList”]? –