4 Mongo Session

Mongo Session

The Mongo session represents a connection to your defined database. It can be used to perform any operation on a specific collection: query, filter, insert, update, delete, etc. Session objects can be created using the session factory.

//open a mongo session
IMongoSession mongoSession = mongoSessionFactory.OpenSession();

//save a single entity
Person scott = new Person
{
    Name = "Scott",
    Age = 29
};
mongoSession.Save(scott);

//save many enitities in one step
Person dan = new Person
{
    Name = "Dan",
    Age = 28
};

Person anna = new Person
{
    Name = "Anna",
    Age = 26
};

var personList = new List<Person>
{
    dan,
    anna
};
mongoSession.SaveBatch(personList);

//retrieve objects in the person collection
var allPersons = mongoSession.Query<Person>();
var allPersonsOver28 = mongoSession.Query<Person>()
    .Where(x => x.Age > 28)
    .OrderBy(x => x.Age)
    .ToList();
var personById = mongoSession.Get<Person>(scott.Id);

//update
scott.Age = 40;
mongoSession.Save(scott);
   
//delete
mongoSession.Delete(scott);

//delete all
mongoSession.DeleteAll<Person>();

//drop all collections
mongoSession.DropAllCollections();

NOTE

The Save method will either insert or update a document, based on the value of the 'Id' property.