从嵌套数组创建嵌套哈希

rich 发表于 Dev

富有的

我想从以下查询中获得响应：

sites = Site.find(request.review_sites).pluck(:id, :location_id, :site_name, :review_url,:created_at)

提供如下输出，

[
  [
    50,
    2,
    "google",
    "https://search.google.com/local/writereview?placeid=000000001flMRNRVr8YpJWuY",
    Thu, 06 Dec 2018 20:18:29 UTC +00:00
  ],
  [
    51,
    2,
    "facebook",
    "https://www.facebook.com/biz/reviews/?ref=page_internal",
    Thu, 06 Dec 2018 20:18:35 UTC +00:00
  ]
]

变成如下所示的嵌套散列（稍后我将使用它作为 JSON）：

{
  :google => {
    :id => 50,
    :create_at => "2018-12-06T20:18:29.651Z",
    :site_name => "google",
    :review_url => "https://search.google.com/local/writereview?placeid=00000000001flMRNRVr8YpJWuY",
    :location_id => 2
  },
  :facebook => {
    :id => 51,
    :create_at => "2018-12-06T20:18:35.639Z",
    :site_name => "facebook",
    :review_url => "https://www.facebook.com/biz/reviews/?ref=page_internal",
    :location_id => 2
  }
}

我意识到这是重复的，但我正在努力实施给出的一些答案。我正在努力以编程方式执行此操作，因此将不胜感激。

射线

我有你要找的东西

尝试以下，

sites = Site.find(request.review_sites)
          .as_json(only: [:id, :location_id, :site_name, :review_url,:created_at])
          .group_by { |x| x['site_name'] }

输出看起来像，

{
  'google' => [
    {
      'id' => 50,
      'create_at' => "2018-12-06T20:18:29.651Z",
      'site_name' => "google",
      'review_url' => "https://search.google.com/local/writereview",
      'location_id' => 2
    },
    {
      'id' => 52,
      'create_at' => "2018-14-06T20:18:29.651Z",
      'site_name' => "google",
      'review_url' => "https://search.google.com/local/readerview",
      'location_id' => 3
    }
  ],
  'facebook' => [
    {
      'id' => 51,
      'create_at' => "2018-12-06T20:18:35.639Z",
      'site_name' => "facebook",
      'review_url' => "https://www.facebook.com/biz/reviews/?ref=page_internal",
      'location_id' => 2
    }
  ]
}

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