Ruby从平面数组生成树结构
我想从以下数据生成树结构:Ruby从平面数组生成树结构,ruby,tree,Ruby,Tree,我想从以下数据生成树结构: [ {"first_name" => "Test", "id" => "1", "parent_id" => ""}, {"first_name" => "Test1", "id" => "2", "parent_id" => "1"}, {"first_name" => "Test2", "id" => "3", "parent_id" => "1"}, {"first_name" => "Test3",
[
{"first_name" => "Test", "id" => "1", "parent_id" => ""},
{"first_name" => "Test1", "id" => "2", "parent_id" => "1"},
{"first_name" => "Test2", "id" => "3", "parent_id" => "1"},
{"first_name" => "Test3", "id" => "4", "parent_id" => "2"}
]
我想创建ruby脚本来构建以下结构:
[
{
"first_name" => "Test",
"id" => "1",
"children" => [
{
"first_name" => "Test1",
"id" => "2",
"children" => [
{
"first_name" => "Test3",
"id" => "4"
}
]
},
{
"first_name" => "Test2",
"id" => "3"
}
}
]
在这种情况下,您有什么建议吗?给定一个特定节点,很容易找到该节点的子节点。关键是要按正确的顺序做,不要重复任何事情。因此,可以从根开始,将节点分为两组:已添加到树中的节点和未添加到树中的节点。然后只需遍历树中的节点,添加它们的子节点,并将子节点从树中的非节点集移动到树中的节点集 稍后我可以添加一些Ruby代码,但现在我不清楚您需要它做什么。重复使用