Asp Net Core Fro MongoDB Part1

tubaobaoya3

　　// AddMethod
　　public void AddVessel(Vessel vsl)
　　{
　　_database.GetCollection<Vessel>("Vessels").InsertOne(vsl);
　　}
　　// DeletedMethod
　　public void DeleteVessel(string vslName)
　　{
　　var filter = Builders<Vessel>.Filter.Eq(vsl => vsl.Name, vslName);
　　_database.GetCollection<Vessel>("Vessels").DeleteOne(filter);
　　}
　　// GetMentod
　　public IEnumerable<Vessel> GetAllVessels()
　　{
　　return _database.GetCollection<Vessel>("Vessels").Find(FilterDefinition<Vessel>.Empty).ToList();
　　}
　　// UpdateMethod
　　public void UpdateVessel(int imo, Vessel vsl)
　　{
　　var filter = Builders<Vessel>.Filter.Eq(v => v.IMO, imo);
　　var update = Builders<Vessel>.Update
　　.Set(v => v.Name, vsl.Name)
　　.Set(v => v.Registry, vsl.Registry)
　　.Set(v => v.YearOfBuilt, vsl.YearOfBuilt);
　　_database.GetCollection<Vessel>("Vessels").UpdateOne(filter, update);
　　}