[英]Deep delete from Ruby hash by dotted path
給定Ruby中嵌套哈希的哈希值(深度可能會有所不同):
hash = {"status_message"=>
{ "destination_does_not_exist"=>
{"message_header" => "Zielordner existiert nicht",
"message_body" => "Der Zielordner für das Backup existiert nicht mehr.",
"corrective_action" => "Erstellen Sie den Zielordner."
}
}
}
如何使用簡單的“點綴”表示法刪除鍵及其所有子值? 就像是:
path = "status_message.destination_does_not_exist.message_header"
hash.delete!(path)
path = path.split '.'
leaf = path.pop
path.inject(hash) {|h, el| h[el]}.delete leaf
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