如何寫字符串params用於在JSON在軌道4,5

Question

如何將我寫強PARAMS這個JSON，如果我有地圖模型，其中我想保存這些記錄：

{ 
"map":[ 
    {"lat": "51.088672", "lon": "71.396522", "vibration_level": "300", "time_sent": "07:25:00"}, 
    {"lat": "51.088672", "lon": "71.396453", "vibration_level": "300", "time_sent": "07:25:01"}, 
    {"lat": "51.088829", "lon": "71.396476", "vibration_level": "300", "time_sent": "07:25:14"} 
] 
} 

我已經嘗試過類似的東西：

params.require(:map).permit(:lat, :lon, :vibration_level, :time_sent) 

params.permit(map: [:lat, :lon, :vibration_level, :time_sent]) 

params.permit(map: [:lat, :lon, :vibration_level, :time_sent]).require(:maps) 

Answer 1

試試這個我希望這會有所幫助。

before_action :parse_json_data_to_params, except: [ # Put Your Get Actions Names Here otherwise it will raise error for get requests ] 

def parse_json_data_to_params 
    params.merge!(ActiveSupport::JSON.decode(request.raw_post)) 
end 

和params許可方法。

params.require(:map).permit(:lat, :lon, :vibration_level, :time_sent)