我在使用我继承的Rails应用程序时出现问题,而且我没有使用Rails的经验。它使用JBuilder从MySQL数据库返回JSON响应。我更新了应用程序,为数据库添加了几个新列,类型为DECIMAL(10,2)。问题是,当我请求JSON时,该值以字符串形式返回。如果我使用DECIMAL(10,0),那么它将作为数字返回。有没有办法强制JBuilder返回一个数字?以下示例中的相关参数为game_score。
控制器的相关部分:
# GET /game
# GET /game.json
def index
if params[:since]
since_datetime = Time.parse(params[:since])
@game = current_user.game.where(["updated_at >= ? and deleted is not true", since_datetime])
else
@game = current_user.game.where('deleted is not true')
end
end
index.json.jbuilder文件:
json.array!(@game) do |game|
json.extract! game, :id, :game_date, :game_score, :game_location, :game_team, :game_referee
json.url game_url(game, format: :json)
end
当MySQL数据类型为DECIMAL(10,2)时的JSON:
[{"id":4814,"game_date":"2014-09-10T15:51:00.000Z","game_score":"1.55","game_location":null,"game_team":"Team 1","game_referee":null, "url":"http://[ip]/game/4814.json"}]
当MySQL数据类型为DECIMAL(10,2)时的JSON:
[{"id":4814,"game_date":"2014-09-10T15:51:00.000Z","game_score":1,"game_location":null,"game_team":"Team 1","game_referee":null, "url":"http://[ip]/game/4814.json"}]
答案 0 :(得分:1)
最简单的方法是手动编写此字段,例如:
json.game_score game.game_score.to_f