ruby-on-rails - 将查询字符串中的多维数组传递给 Rails 中的控制器

Question

将多维数组传递给 rails 控制器时，它似乎无法正确解析。我做错了吗？

url: http://localhost:3000/people?sort[][]=lastname&sort[][]=1&sort[][]=firstname&sort[][]=1
params: {
          "sort" => [
        [0] nil,
        [1] nil,
        [2] nil,
        [3] nil
    ],
        "action" => "index",
    "controller" => "people"
}

应该：

params: {
          "sort" => [
        [0] => [
          [0] => 'lastname',
          [1] => 1
        ],
        [1] = > [
          [0] => 'firstname',
          [1] => 1
        ]
    ],
        "action" => "index",
    "controller" => "people"
}

Answer 1

Rails 不支持查询字符串中的多维数组。

它支持一维数组：

http://localhost:3000/people?sort[]=lastname&sort[]=firstname
# params[:sort] == ['lastname', 'firstname']

并且还支持哈希：

http://localhost:3000/people?sort[lastname]=asc&sort[firstname]=desc
# params[:sort] == {:lastname => 'asc', :firstname => 'desc'}