mongodb - Undefined is not a Function-Sails Mongoose -

hi trying write logic in sails using mongoose find , update parameters in mongoose database using serial no in string format.the parameters passing in the body of dhc app(used posting data api). while posting data, getting following error

typeerror: undefined not function @ object.module.exports.createorupdatestatus (/users/febinp/downloads/shubham_application/taqua-parser/api/controllers/status-packetcontroller.js:66:26) @ bound (/usr/local/lib/node_modules/sails/node_modules/lodash/dist/lodash.js:729:21) @ routetargetfnwrapper (/usr/local/lib/node_modules/sails/lib/router/bind.js:179:5) @ callbacks (/usr/local/lib/node_modules/sails/node_modules/express/lib/router/index.js:164:37) @ param (/usr/local/lib/node_modules/sails/node_modules/express/lib/router/index.js:138:11) @ pass (/usr/local/lib/node_modules/sails/node_modules/express/lib/router/index.js:145:5) @ nextroute (/usr/local/lib/node_modules/sails/node_modules/express/lib/router/index.js:100:7) @ callbacks (/usr/local/lib/node_modules/sails/node_modules/express/lib/router/index.js:167:11) @ /usr/local/lib/node_modules/sails/lib/router/bind.js:187:7 @ alwaysallow (/usr/local/lib/node_modules/sails/lib/hooks/policies/index.js:207:11) @ routetargetfnwrapper (/usr/local/lib/node_modules/sails/lib/router/bind.js:179:5) @ callbacks (/usr/local/lib/node_modules/sails/node_modules/express/lib/router/index.js:164:37) @ param (/usr/local/lib/node_modules/sails/node_modules/express/lib/router/index.js:138:11) @ pass (/usr/local/lib/node_modules/sails/node_modules/express/lib/router/index.js:145:5) @ nextroute (/usr/local/lib/node_modules/sails/node_modules/express/lib/router/index.js:100:7) @ callbacks (/usr/local/lib/node_modules/sails/node_modules/express/lib/router/index.js:167:11) @ /usr/local/lib/node_modules/sails/lib/router/bind.js:187:7 @ clearheaders (/usr/local/lib/node_modules/sails/lib/hooks/cors/index.js:209:3) @ routetargetfnwrapper (/usr/local/lib/node_modules/sails/lib/router/bind.js:179:5) @ callbacks (/usr/local/lib/node_modules/sails/node_modules/express/lib/router/index.js:164:37) @ param (/usr/local/lib/node_modules/sails/node_modules/express/lib/router/index.js:138:11) @ pass (/usr/local/lib/node_modules/sails/node_modules/express/lib/router/index.js:145:5) [typeerror: undefined not function]  

using node inspector found code failing findoneandupdate follows

var msg_parts=params.msg_parts;           /*msg_parts.serialno=params.serialno;*/   // adding serial no message parts storing in mongo database       var statuspacket=db.statuspacket(msg_parts);          //for saving database         statuspacket.findoneandupdate({"serialno":serialno1},msg_parts,function(err,data){                 if (err) {                         res.json({                                 success: false,                                 exception: err                         });                             return;                 }else{                                               statuspacket.save(function(err,data){                                 if(err){                                              res.json({                                                 success: false,                                                 exception: err                                             });                                           return;                                         }else{                                                 res.json({                                                     success: true,                                                     data:data                                             });                                         return;                                         }                         });                   }         });   

my schema database follows

 var schema=new mongoose.schema({     // serial no of device.we require index on column     serialno:{          type: string,          required:true,          index:true     },    // battery level take values 0 6(0,1,2,3,4,5,6)    batterylevel:{         type:number,         min:0,            max:6     },     //signal level take values 0 4 (0,1,2,3,4)     signallevel:{             type:number,             min:0,                max:4,      },     //charging status=false represents charging off , true represents charging on     chargingstatus:{             type:boolean,                default:false    },     // 7 states of alarm      alarminfo:{           type:number   },     // false represents gps off , true represents gps on       gpsstatus:{             type:boolean   },     //default time when new packet arrived         createdat: {         type: date,         default: date.now     }   }); 

can me error unable understand going wrong in findoneandupdate?