public async Task <VercorsContext> UpdateContext(VercorsContext vercorsContext)
{
this.CheckCancellation();
try
{
vercorsContext.UserId = this.mobileService.CurrentUser.UserId;
await this.mobileService.GetTable <VercorsContext>().UpdateAsync(vercorsContext);
var result = await this.mobileService.GetTable <VercorsContext>().Where(t => t.Name == vercorsContext.Name).ToListAsync();
if (result.Count == 1)
{
return(result[0]);
}
else
{
return(null);
}
}
catch (Exception e)
{
LogService.Log(LogSource, e.ToString());
return(null);
}
}
public async Task <bool> DeleteContext(VercorsContext vercorsContext)
{
this.CheckCancellation();
try
{
await this.mobileService.GetTable <VercorsContext>().DeleteAsync(vercorsContext);
var result = await this.mobileService.GetTable <VercorsContext>().Where(t => t.Name == vercorsContext.Name).ToListAsync();
return(result.Count == 0);
}
catch (Exception e)
{
LogService.Log(LogSource, e.ToString());
return(false);
}
}
private async Task ContextSync()
{
// add new local contexts in Vercors
// use ToList() to have a copy of the list as each statement in the loop will change the collection
foreach (var id in this.Metadata.AddedContexts.ToList())
{
IContext context = this.Workbook.Contexts.FirstOrDefault(c => c.Id == id);
// we should never have a folder in the PendingAdded list that does not exist
// but who knows...
if (context != null)
{
this.OnSynchronizationProgressChanged(string.Format(StringResources.SyncProgress_AddingContextFormat, context.Name));
VercorsContext vercorsContext = await this.service.AddContext(new VercorsContext(context));
if (vercorsContext != null)
{
context.SyncId = vercorsContext.Id;
this.Changes.WebAdd++;
}
}
this.Metadata.AddedContexts.Remove(id);
}
// remove deleted local contexts from Vercors
this.UpdateDeletedContexts();
foreach (var deletedEntry in this.Metadata.DeletedContexts.ToList())
{
this.OnSynchronizationProgressChanged(StringResources.SyncProgress_DeletingContext);
await this.service.DeleteContext(new VercorsContext { ItemId = int.Parse(deletedEntry.SyncId) });
this.Changes.WebDelete++;
this.Metadata.DeletedContexts.Remove(deletedEntry);
}
// is LastFolderEdit newer than the last sync
if (this.account.ContextEditTimestamp > this.contextEditTimestamp)
{
this.OnSynchronizationProgressChanged(StringResources.SyncProgress_GettingContexts);
// there are probably changes in Vercors we must perform in the workbook...
// start by fetching contexts
var vercorsContexts = await this.service.GetContexts();
// does the server have contexts we don't have ?
this.EnsureWorkbookHasContext(vercorsContexts);
// does the server misses contexts that we have);
foreach (var context in this.Workbook.Contexts.ToList())
{
var vercorsContext = vercorsContexts.FirstOrDefault(f => f.Id == context.SyncId);
int id = -1;
bool hasId = int.TryParse(context.SyncId, out id);
if (vercorsContext == null && hasId && id > 0)
{
// this context is no longer in Vercors, delete it from the workbook
this.DeleteContext(context.Name);
this.Changes.LocalDelete++;
}
}
foreach (var context in this.Workbook.Contexts)
{
// does a context exist in both place
var vercorsContext = vercorsContexts.FirstOrDefault(f => f.Id == context.SyncId);
// if the name is not the same locally and in Vercors
if (!this.Metadata.EditedContexts.Contains(context.Id) && vercorsContext != null &&
!context.Name.Equals(vercorsContext.Name, StringComparison.OrdinalIgnoreCase))
{
// Vercors has the latest value
vercorsContext.UpdateTarget(context);
}
}
}
// do we need to edit contexts
foreach (var contextId in this.Metadata.EditedContexts.ToList())
{
IContext context = this.Workbook.Contexts.FirstOrDefault(c => c.Id == contextId);
if (context != null)
{
this.OnSynchronizationProgressChanged(string.Format(StringResources.SyncProgress_UpdatingContextFormat, context.Name));
await this.service.UpdateContext(new VercorsContext(context));
this.Changes.WebEdit++;
this.Metadata.EditedContexts.Remove(contextId);
}
}
}