public void Dispose()
{
if (this.disposed)
{
return;
}
if (this.savedScope != null)
{
DbContextScope.SetAmbientScope(this.savedScope);
this.savedScope = null;
}
this.disposed = true;
}
/// <summary>
/// Makes the provided 'dbContextScope' available as the the ambient scope via the CallContext.
/// </summary>
internal static void SetAmbientScope(DbContextScope newAmbientScope)
{
if (newAmbientScope == null)
{
throw new ArgumentNullException("newAmbientScope");
}
var current = CallContext.LogicalGetData(AmbientDbContextScopeKey) as InstanceIdentifier;
if (current == newAmbientScope.instanceIdentifier)
{
return;
}
// Store the new scope's instance identifier in the CallContext, making it the ambient scope
CallContext.LogicalSetData(AmbientDbContextScopeKey, newAmbientScope.instanceIdentifier);
// Keep track of this instance (or do nothing if we're already tracking it)
DbContextScopeInstances.GetValue(newAmbientScope.instanceIdentifier, key => newAmbientScope);
}
public TDbContext Get <TDbContext>() where TDbContext : DbContext
{
var ambientDbContextScope = DbContextScope.GetAmbientScope();
return(ambientDbContextScope?.DbContexts.Get <TDbContext>());
}
public DbContextReadOnlyScope(DbContextScopeOption joiningOption, IsolationLevel?isolationLevel, IDbContextFactory dbContextFactory = null)
{
this.internalScope = new DbContextScope(joiningOption : joiningOption, readOnly : true, isolationLevel : isolationLevel, dbContextFactory : dbContextFactory);
}