MongoDB.Repository.Core 2.0.0

MongoDB.SimpleRepository

Repository implementation for .net core MongoDB driver.

Supports

• Any type for id, like Guid or int. ObjectId or BsonId are not required in your classes. Keep your POCO objects plain!
• Connection pooling. Takes advantage of MongoDb.Driver's support for thread-safe static database and collection references.
• Bulk add or delete.

Nuget package MongoDB.Repository.Core

Usage

1. Name one of the fields "Id" in your model. It doesn't need to be an ObjectId or have Bson attributes. Any type except for a list or array will do as an Id.

    public class Record
    {
        public Guid Id {get; set;}
        public string Name { get; set; }
    }

2. Your repository. Takes two type parameters--the type of your record and the type of the Id--and then your connection string.

    var repo = new Repository<Record, Guid>(connectionString);

Examples

FindById:

    var record = await repo.FindByIdAsync(new Guid("134c24bf-e1c8-4ec9-bd7e-ebbe211ebb72"));

Upsert accepts an optional IEqualityComparer, which will test whether there are actually any changes between the record to upsert and the existing record. This can greatly improve speed, since it only writes when it needs to.

    public class RecordComparer : IEqualityComparer<Record>
    {
        public bool Equals(Record x, Record y)
        {
            if (x == null && y == null) return true;
            if (x == null || y == null) return false;

            return x.Name == y.Name;
        }

        public int GetHashCode(Record obj)
        {
            return obj.Name?.GetHashCode() ?? 0;
        }
    }
    
    //Implementation
    repo.Upsert(myRecord, new RecordComparer());