ruby - 来自嵌套哈希的对象取决于键值

Question

我收到一个 google api 响应并有以下哈希值:

api_response = {"0"=>{"id"=>"xxx.id.google.com^xxx", "hasMicrophone"=>"true", "hasCamera"=>"true", "hasAppEnabled"=>"false", "isBroadcaster"=>"false", "isInBroadcast"=>"true", "displayIndex"=>"0", "person"=>{"id"=>"xxx", "displayName"=>"Foo Bar", "image"=>{"url"=>".../s96-c/photo.jpg"}, "fa"=>"false"}, "locale"=>"en", "fa"=>"false"}, "1"=>{"id"=>"xxx.id.google.com^3772edb7c0", "hasMicrophone"=>"true", "hasCamera"=>"true", "hasAppEnabled"=>"false", "isBroadcaster"=>"false", "isInBroadcast"=>"true", "displayIndex"=>"1", "person"=>{"id"=>"xxx", "displayName"=>"Bar Foo", "image"=>{"url"=>".../s96-c/photo.jpg"}, "fa"=>"false"}, "locale"=>"en", "fa"=>"false"}, "2"=>{"id"=>"xxx.id.google.com^98ebb1f610", "hasMicrophone"=>"true", "hasCamera"=>"true", "hasAppEnabled"=>"true", "isBroadcaster"=>"true", "isInBroadcast"=>"true", "displayIndex"=>"2", "person"=>{"id"=>"xxx", "displayName"=>"John Doe", "image"=>{"url"=>".../s96-c/photo.jpg"}, "fa"=>"false"}, "locale"=>"en", "fa"=>"false"}}

我需要从 "isBroadcaster"=>"true" 的嵌套散列中获取 displayName 的值。 (在这种情况下，displayName 是 John Doe)。我只是无法解决这个问题，希望得到一些帮助。提前谢谢你。

Answer 1

假设只有 1 个广播公司。

api_response.each do |_, hash|
  break hash['person']['displayName'] if hash['isBroadcaster'] == 'true'
end

对于多个广播公司，这:

api_response.each_with_object([]) do |(_, hash), array|
  array << hash['person']['displayName'] if hash['isBroadcaster'] == 'true'
end