将欧姆模型树转换为JSON结构
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12-10-2019 - |
题
我有一棵欧姆模型。游戏有玩家,玩家有碎片。完整的详细信息如下。基本上,当我将结构渲染为JSON时,我会看到一个编码错误:
nomethoderror(#piece的未定义方法`encode_json':0x00000102b8dbb8):
但是,我可以没有任何错误输出玩家及其作品。
Player = Player.create(:name => "Toby")
game.player << player
player.pieces << Piece.create(:name => "Rook")
# works fine
logger.debug(player.to_hash.to_json)
# FAILS with the above error
logger.debug(game.to_hash.to_json)
我最好的猜测是,在收藏的嵌套中,有些东西在这里引起了问题。
有任何想法吗?
class Game < Ohm::Model
collection :player, Player
def to_hash
super.merge(:players => players)
end
end
class Player < Ohm::Model
reference :game, Game
collection :pieces, Piece
attribute :name
def to_hash
super.merge(:name => name, :pieces => pieces)
end
end
class Piece < Ohm::Model
reference :player, Player
def to_hash
super.merge(:name => name)
end
end
解决方案
我发现这涉及问题:
class Player < Ohm::Model
def to_hash
super.merge(:name => name, :pieces => pieces.all)
end
end
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