/// <inheritdoc />
public void UpdateTransactionCategory(int id, int categoryId)
{
this.ConcurrentInvoke(() =>
{
var transaction = this.Context.Transactions.GetEntity(id);
if (transaction.Type == TransactionType.Transfer)
{
throw new ValidationException("A transfer transaction can not have a category.");
}
this.Context.Categories.GetEntity(categoryId);
var processor = new TransactionProcessor(this.Context, this.splitwiseContext);
processor.ChangeCategory(transaction, categoryId);
this.Context.SaveChanges();
});
}