public static EntityResult Failed(params EntityError[] errors)
{
var result = new EntityResult {
Succeeded = false
};
if (errors != null)
{
result._errors.AddRange(errors);
}
return(result);
}
public async Task <EntityResult> SaveFileMetadataAsync(FileMetadata metadata, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (metadata == null)
{
throw new ArgumentNullException(nameof(metadata));
}
DbContext.Add(metadata);
try
{
await DbContext.SaveChangesAsync(cancellationToken);
}
catch (DbUpdateConcurrencyException)
{
return(EntityResult.Failed(ErrorDescriber.ConcurrencyFailure()));
}
return(EntityResult.Success);
}
public async Task <EntityResult> CreateAsync(Application app, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (app == null)
{
throw new ArgumentNullException(nameof(app));
}
Context.Add(app);
try
{
await Context.SaveChangesAsync(cancellationToken);
}
catch (DbUpdateConcurrencyException)
{
return(EntityResult.Failed(ErrorDescriber.ConcurrencyFailure()));
}
return(EntityResult.Success);
}
public async Task <EntityResult> AddEventAsync(long appId, Event evt, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (evt == null)
{
throw new ArgumentNullException(nameof(evt));
}
evt.ApplicationId = appId;
Context.Add(evt);
try
{
await Context.SaveChangesAsync(cancellationToken);
}
catch (DbUpdateConcurrencyException)
{
return(EntityResult.Failed(ErrorDescriber.ConcurrencyFailure()));
}
return(EntityResult.Success);
}