ruby-on-rails - rails jbuilder : how to build a JSON from an array with the key equals to the array values

Question

我是一个非常新的 Rails 开发人员，我正在使用 Jbuilder按照以下方式构建我的 View :

[:aaa, :bbb, :ccc].each do |value|
  json.value do |json| #<------ Here is my error!
    json.partial! foo.send(value)
  end
end

一切正常，但 json.value，我的回复如下(显然):

[{
"value" => {...}
"value" => {...}
"value" => {...}
}]

我想要这个:

[{
"aaa" => {...}
"bbb" => {...}
"ccc" => {...}
}]

有什么想法吗？

Answer 1

来自指南:

To define attribute and structure names dynamically, use the set! method:

json.set! :author do
  json.set! :name, 'David'
end

# => "author": { "name": "David" }

解决方法是这样的:

[:aaa, :bbb, :ccc].each do |value|
  json.set! value do |json|
    json.partial! foo.send(value)
  end
end