// Implemented "Filters Class" that builds filters and gives options of combining filter options Bin and Year.
// See "Using the MongoDB C# v2 Driver" on Pluralsight by Wes Higbee. Module 2 Combining Filter Conditions
public async Task <IEnumerable <Wine> > GetWinesAsync(WinesFilter filters)
{
var filterDefinition = filters.ToFilterDefinition();
var sortDefinition = filters.ToSortDefinition();
var findOptions = new FindOptions <Wine, Wine>()
{
Sort = sortDefinition
};
var wines = await _wines.FindAsync(filterDefinition, findOptions).ConfigureAwait(false);
return(await wines.ToListAsync().ConfigureAwait(false));
}
public async Task <IEnumerable <Wine> > GetWinesAsync(WinesFilter filters)
{
var filterDefinition = filters.ToFilterDefinition();
// Get a BsonDocumentSerializer needed by the Render function
var wineSerializer = BsonSerializer.SerializerRegistry.GetSerializer <Wine>();
var serializerRegistry = new BsonSerializerRegistry();
try
{
var filterBsonDocument = filterDefinition.Render(wineSerializer, serializerRegistry);
var year = filterBsonDocument?.Elements?.ToList().FirstOrDefault(e => e.Name == "year").Value?.AsInt32;
var bin = filterBsonDocument?.Elements?.ToList().FirstOrDefault(e => e.Name == "bin").Value?.AsInt32;
var vineyard = filterBsonDocument?.Elements?.ToList().FirstOrDefault(e => e.Name == "vineyard").Value?.AsString;
if (!string.IsNullOrEmpty(vineyard))
{
await GetWinesByVineyardAsync(vineyard).ConfigureAwait(false);
}
if (year > 0)
{
_wineList = _wineList.Where(w => w.Year == year)?.ToList();
}
if (bin > 0)
{
_wineList = _wineList.Where(w => w.Bin == bin)?.ToList();
}
}
catch (Exception ex)
{
Console.WriteLine($"{ex.Message}, InnerExec Message: {ex.InnerException?.Message}");
}
return(await Task.FromResult(_wineList).ConfigureAwait(false));
}