# IT:AD:Code First #



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## Example ##

    public class EFRepository : IGraphRepository<GraphVertex, int, IGraphEdge<GraphVertex>>
    {
            private readonly GraphContext _graphContext = new GraphContext();

            public void Persist(params GraphVertex[] vertices)
            {
                foreach(GraphVertex vertex in vertices)
                {
                    bool isDetached = ((int)_graphContext.Entry(vertex).State).BitIsSet((int)EntityState.Modified);

                    if (vertex.Id == default(int))
                    {
                        _graphContext.Vertices.Add(vertex);
                    }
                    else
                    {
                        _graphContext.Vertices.Attach(vertex);
                        _graphContext.Entry(vertex).State = EntityState.Modified;
                    }
                }
                _graphContext.SaveChanges();
            }
    }
}