相关疑难解决方法(0)

My insert is not working, I got error of Error :

Token.insert is not a function

var Token = module.exports = mongoose.model('tokens', tokenSchema);

//error
module.exports.saveToken = function(owner_id, token, callback){
    console.log(owner_id,token);
    Token.insert({"owner":owner_id,"token":token},callback);
}
//working
module.exports.getAllTokens = function(owner_id, callback){
    Token.find({"owner":owner_id},callback);
}