public void AddOrUpdate()
{
var id = Guid.NewGuid();
var initialRowVersion = Guid.NewGuid();
var lastRowVersion = Guid.NewGuid();
// Create a new OptiContext.
// - Pass a factory method to create a new DbContext
var oc = new OptiContext <SqlDbContext, OptiEntity>(() => LastWins.CreateContext());
// defines the method to select an entity
oc.SelectFunc = (cx) =>
{
var i = cx.Optis.Find(id);
return(i);
};
// defines the method to add an entity, if select returns no entity
oc.AddAction = (cx) =>
{
var oe = new OptiEntity();
oe.Id = id;
oe.Value = 0;
oe.Created = oe.Updated = DateTime.Now;
oe.RowVersion = initialRowVersion;
cx.Optis.Add(oe);
cx.SaveChanges();
};
// defines the method to update the entity, if select returns a entity
oc.UpdateAction = (cx, oe) =>
{
// update the entity
lastRowVersion = Guid.NewGuid();
oe.Value++;
oe.Created = oe.Updated = DateTime.Now;
oe.RowVersion = lastRowVersion;
cx.SaveChanges();
};
// initial add opti entity
oc.Execute();
}
public OptiContext <OracleDbContext, OptiEntity> CreateOptiContext()
{
var result = new OptiContext <OracleDbContext, OptiEntity>(() => new OracleDbContext());
return(result);
}
public OptiContext <SqlDbContext, OptiEntity> CreateOptiContext()
{
var result = new OptiContext <SqlDbContext, OptiEntity>(() => LastWins.CreateContext());
return(result);
}
