我有一个无法修改的数据库,因为它是从我无法控制的节点中填充的只读数据库。
这会导致表格foreign_keys
与 Rails 默认方式不同。您可以在以下模型中看到当前情况:
# app/models/epoch_stake.rb
class EpochStake < DbSyncRecord
self.table_name = 'epoch_stake'
belongs_to :stake_address, foreign_key: :addr_id
end
# app/models/stake_address.rb
class StakeAddress < DbSyncRecord
self.table_name = "stake_address"
has_many :epoch_stakes, foreign_key: :addr_id
end
addr_id
而不是stake_address_id
现在我正在创建一个控制器来获取其中一个模型,并使用序列化程序来显示关联的模型。
class EpochStakeController < ApplicationController
def index
epoch_stakes = EpochStake.all
render json: EpochStakeSerializer.new(epoch_stakes)
end
end
似乎当我试图告诉JSONAPI::Serializer
注意foreign_key
不同时,并没有考虑到这一点:
# app/serializers/epoch_stake_serializers.rb
class EpochStakeSerializer
include JSONAPI::Serializer
attributes :epoch_no, :amount
belongs_to :stake_address, foreign_key: :addr_id
end
事实上,当我使用上面的/epoch_stakes
配置查询控制器(foreign_key
NoMethodError: undefined method `stake_address_id' for #<EpochStake:0x00007fcf9f22ad50>
Did you mean? stake_address
stake_address=
from /Users/sergio/.rvm/gems/ruby-2.6.1/gems/activemodel-6.1.3/lib/active_model/attribute_methods.rb:469:in `method_missing'
我怎样才能让序列化程序意识到不同foreign_key
?