Question

我有一个来自json decode的以下哈希：

{“person”=＆gt; {“user”=＆gt; [{“username”=＆gt;“foo”，“status”=＆gt;“Y”， “roles”=＆gt; [“accounting”，“sales”]}]}}

我基本上想要将角色值更改为逗号分隔的句子，例如执行value.to_sentence。我如何实现这一目标？

Answer 1

试试这个：

def fix_roles(h)
  user0 = h['person']['user'][0]
  user0['roles'] = user0['roles'].join(', ')
end

[编辑] 例如：

h = {"person"=>{"user"=>[{"username"=>"foo", "status"=>"Y", "roles"=>["accounting", "sales"]}]}}
fix_roles(h)
h # => {"person"=>{"user"=>[{"username"=>"foo", "status"=>"Y", "roles"=>"accounting, sales"}]}}

Answer 2

感谢maerics示例，我能够通过迭代每个数组元素来实现解决方案：

def fix_roles(w)
  w['person']['user'].each do |arr|
    arr.each do |k,v|
      arr['roles'] = v.join(', ') if k == 'roles' 
    end
  end
end

Ruby - 更改数组的值哈希值

2 个答案: