protected async Task PrepareStorageAsync(Guid id, TModel storageValue)
{
if (storageValue == null)
{
await CrudStorage.DeleteAsync(id);
}
else
{
var value = await CrudStorage.ReadAsync(id);
if (value == null)
{
await CrudStorage.CreateWithSpecifiedIdAsync(id, storageValue);
}
else if (!Equals(value, storageValue))
{
await CrudStorage.UpdateAsync(id, storageValue);
}
}
}
