如何在rails中定义方法序列化程序netflix fast\u jsonapi在rails中?

来自fastèjsonapi的自述

class MovieSerializer
  include FastJsonapi::ObjectSerializer

  attributes :name, :year

  attribute :name_with_year do |object|
    "#{object.name} (#{object.year})"
  end
end

class MovieSerializer
  include FastJsonapi::ObjectSerializer

  attributes :name, :year

  attribute :name_with_year do |object|
    foo(object)
  end

  def foo(object)
    # do something with object
  end
end

这是。。。困难。这是作为一个 issue 有段时间了,但还没有结果。

所发生的事情是,序列化程序的行为有点像单例,所以您基本上被迫使用类方法,例如

class MovieSerializer
  include FastJsonapi::ObjectSerializer

  attributes :name, :year

  attribute :name_with_year do |object|
    foo(object)
  end

  def self.foo(object) # will be called
    # do something with object
  end

  def foo(object) # will never be called
    # do something with object
  end
end

在宝石中有一些奇怪的东西使得这很有必要。