private SyncLog Upsert(SyncType type, object item, UpsertModel upsertDelegate)
{
var log = new SyncLog(SyncAction.Upsert, type, item);
try
{
int?newEntityId = upsertDelegate(item);
log.SetSuccessful(newEntityId);
}
catch (Exception ex)
{
log.SetFailed(ex.Message);
}
return(log);
}
private SyncLog Delete(SyncType type, int id, DeleteModel deleteDelegate)
{
var log = new SyncLog(SyncAction.Delete, type, id);
try
{
deleteDelegate(id);
log.SetSuccessful(null);
}
catch (Exception ex)
{
log.SetFailed(ex.Message);
}
return(log);
}
public static IEnumerable <SyncLog> SyncChanges(string serializedItems)
{
var items = Newtonsoft.Json.JsonConvert.DeserializeObject <dynamic>(serializedItems);
var instance = new OnlineSync();
var logs = new List <SyncLog>();
int observationId;
const string parentObservationErrorMessage = "Parent observation was not saved.";
// Capture new observation ID's so that child objects can be mapped to them.
Dictionary <string, int> newObservations = new Dictionary <string, int>();
foreach (var o in items.Observations.Upserts)
{
SyncLog log = instance.Upsert(SyncType.Observation, (object)o, instance.UpsertObservation);
if (log.NewEntityId.HasValue)
{
newObservations.Add((string)o.ObservationId, log.NewEntityId.Value);
}
log.SetObservation(log.NewEntityId ?? (int)o.ObservationId);
logs.Add(log);
}
// Observation Changes
foreach (var c in items.ObservationChanges.Upserts)
{
// If the change belongs to a newly-inserted observation, update ObservationId first.
if (!Int32.TryParse((string)c.ObservationId, out observationId))
{
if (newObservations.ContainsKey((string)c.ObservationId))
{
// Set the new ObservationId.
c.ObservationId = newObservations[(string)c.ObservationId];
}
else
{
// Could not find the ObservationId. Do not import the change.
logs.Add(new SyncLog(SyncAction.Upsert, SyncType.Change, c, parentObservationErrorMessage));
continue;
}
}
var log = instance.Upsert(SyncType.Change, (object)c, instance.UpsertChange);
log.SetObservation((int)c.ObservationId);
logs.Add(log);
}
foreach (var c in items.ObservationChanges.Deletes)
{
logs.Add(instance.Delete(SyncType.Change, (int)c, instance.DeleteChange));
}
// Observation Attachments
foreach (var a in items.ObservationAttachments.Upserts)
{
// If the attachment belongs to a newly-inserted observation, update ObservationId first.
if (!Int32.TryParse((string)a.ObservationId, out observationId))
{
if (newObservations.ContainsKey((string)a.ObservationId))
{
// Set the new ObservationId.
a.ObservationId = newObservations[(string)a.ObservationId];
}
else
{
// Could not find the ObservationId. Do not import the attachment.
logs.Add(new SyncLog(SyncAction.Upsert, SyncType.Attachment, a, parentObservationErrorMessage));
continue;
}
}
var log = instance.Upsert(SyncType.Attachment, (object)a, instance.UpsertAttachment);
log.SetObservation((int)a.ObservationId);
logs.Add(log);
}
// Observation Comments
foreach (var c in items.ObservationComments.Upserts)
{
// If the comment belongs to a newly-inserted observation, update ObservationId first.
if (!Int32.TryParse((string)c.ObservationId, out observationId))
{
if (newObservations.ContainsKey((string)c.ObservationId))
{
// Set the new ObservationId.
c.ObservationId = newObservations[(string)c.ObservationId];
}
else
{
// Could not find the ObservationId. Do not import the comment.
logs.Add(new SyncLog(SyncAction.Upsert, SyncType.Comment, c, parentObservationErrorMessage));
continue;
}
}
var log = instance.Upsert(SyncType.Comment, (object)c, instance.UpsertComment);
log.SetObservation((int)c.ObservationId);
logs.Add(log);
}
foreach (var c in items.ObservationComments.Deletes)
{
logs.Add(instance.Delete(SyncType.Comment, (int)c, instance.DeleteComment));
}
// If any item(s) failed, send a copy of the raw data to the system adminsitrator(s).
if (logs.Any(x => !x.Successful))
{
SendLogEmail(logs);
}
return(logs);
}
