protected void UpdateFreezes <ACCOUNT_SNAPSHOT_ENTRY, ACCOUNT_FREEZE_SNAPSHOT_ENTRY>(ACCOUNT_SNAPSHOT_ENTRY snapshot, AccountId accountId, DbSet <ACCOUNT_FREEZE_SNAPSHOT_ENTRY> freezes)
where ACCOUNT_SNAPSHOT_ENTRY : INeuraliumAccountSnapshot <ACCOUNT_FREEZE_SNAPSHOT_ENTRY>
where ACCOUNT_FREEZE_SNAPSHOT_ENTRY : class, INeuraliumAccountFreezeEntry
{
var existingFreezes = this.QueryDbSetEntityEntries(freezes, a => a.AccountId == accountId.ToLongRepresentation());
var snapshotFreezes = snapshot.AccountFreezes.ToList();
var certificateIds = existingFreezes.Select(a => a.FreezeId).ToList();
var snapshotCertificates = snapshotFreezes.Select(a => a.FreezeId).ToList();
// build the delta
var newFreezes = snapshotFreezes.Where(a => !certificateIds.Contains(a.FreezeId)).ToList();
var modifyFreezes = snapshotFreezes.Where(a => certificateIds.Contains(a.FreezeId)).ToList();
var removeFreezes = existingFreezes.Where(a => !snapshotCertificates.Contains(a.FreezeId)).ToList();
foreach (ACCOUNT_FREEZE_SNAPSHOT_ENTRY attribute in newFreezes)
{
freezes.Add(attribute);
}
foreach (ACCOUNT_FREEZE_SNAPSHOT_ENTRY freeze in modifyFreezes)
{
ACCOUNT_FREEZE_SNAPSHOT_ENTRY dbEntry = existingFreezes.Single(a => a.FreezeId == freeze.FreezeId);
this.GetNeuraliumCardUtils().Copy(freeze, dbEntry);
}
foreach (ACCOUNT_FREEZE_SNAPSHOT_ENTRY attribute in removeFreezes)
{
freezes.Remove(attribute);
}
}