我需要从ItemSerializer中访问current_user_id
。
有没有办法实现它?即使是肮脏的黑客,我也很好。)
我知道serialization_options
哈希的存在(来自How to pass parameters to ActiveModel serializer
)但它只适用于render
命令(如果我是对的)所以可以这样做:
def action
render json: @model, option_name: value
end
class ModelSerializer::ActiveModel::Serializer
def some_method
puts serialization_options[:option_name]
end
end
但在我的情况下,我使用ArraySerializer
在render
命令之外生成json哈希,如下所示:
positions_results = {}
positions_results[swimlane_id][column_id] =
ActiveModel::ArraySerializer.new(@account.items,
each_serializer: ItemSerializer,
current_user_id: current_user.id) # <---- Does not work
答案 0 :(得分:7)
您可以通过两种方式实现:
将它们传递给serialization_options
,但据我所知,正如您所说,您只能在控制器的回复中使用它:
如你所述,将它们传递给context
或scope
,它几乎相同:
# same as with scope
ActiveModel::ArraySerializer.new(@account.items, each_serializer: ItemSerializer, context: {current_user_id: 31337})
# In serializer:
class ItemSerializer < ActiveModel::Serializer
attributes :scope, :user_id
def user_id
context[:current_user_id]
end
end
答案 1 :(得分:5)
基本上答案是: https://github.com/rails-api/active_model_serializers/issues/510
ActiveModel::ArraySerializer.new(
@account.items,
each_serializer: ItemSerializer,
scope: {current_user_id: 31337})
然后在ItemSerializer
:
class ItemSerializer < ActiveModel::Serializer
attributes :scope, :user_id
def user_id
# scope can be nil
scope[:current_user_id]
end
end
希望它可以帮助任何人:)