// GET: Home
public ActionResult Index(CarAggregateFilterViewModel filter)
{
if (filter == null)
{
filter = new CarAggregateFilterViewModel();
}
foreach (var co in _carOptionManager.GetAll())
{
filter.AvalibleCarOptions.Add(_carOptionFieldCopier.CopyFields(co, new CarOptionViewModel()));
}
ViewBag.CarFilter = filter;
return(View(new List <CarAggregateViewModel>()));
}
public List <CarAggregateViewModel> GetCarsAggregateViewModel(CarAggregateFilterViewModel filter)
{
var predicateBuilder = PredicateBuilder.True <CarAggregateViewModel>();
if (filter.BodyTypeId != null)
{
predicateBuilder = predicateBuilder.And(c => c.BodyTypeId == filter.BodyTypeId);
}
if (filter.ModelId != null)
{
predicateBuilder = predicateBuilder.And(c => c.ModelId == filter.ModelId);
}
if (filter.ManufacturerId != null)
{
predicateBuilder = predicateBuilder.And(c => c.ManufacturerId == filter.ManufacturerId);
}
if (filter.CountryId != null)
{
predicateBuilder = predicateBuilder.And(c => c.CountryId == filter.CountryId);
}
if (filter.FuelTypeId != null)
{
predicateBuilder = predicateBuilder.And(c => c.FuelTypeId == filter.FuelTypeId);
}
if (filter.TransmitionTypeId != null)
{
predicateBuilder = predicateBuilder.And(c => c.TransmitionTypeId == filter.TransmitionTypeId);
}
predicateBuilder = predicateBuilder.And(c => c.Price >= filter.PriceMin);
predicateBuilder = predicateBuilder.And(c => c.Price <= filter.PriceMax);
predicateBuilder = predicateBuilder.And(c => c.Volume >= filter.VolumeMin);
predicateBuilder = predicateBuilder.And(c => c.Volume <= filter.VolumeMax);
predicateBuilder = predicateBuilder.And(c => c.ReleaseYear >= filter.ReleaseYearMin);
predicateBuilder = predicateBuilder.And(c => c.ReleaseYear <= filter.ReleaseYearMax);
if (!string.IsNullOrEmpty(filter.OwnerId))
{
predicateBuilder = predicateBuilder.And(c => c.OwnerId == filter.OwnerId);
}
if (filter.OptionsIds != null && filter.OptionsIds.Count > 0)
{
predicateBuilder = predicateBuilder.And(c => c.Options.Intersect(filter.OptionsIds).Count() >= filter.OptionsIds.Count);
}
if (!string.IsNullOrEmpty(filter.Description))
{
predicateBuilder = predicateBuilder.And(c => c.Description.Contains(filter.Description));
}
if (!string.IsNullOrEmpty(filter.AllFieldsSearch))
{
var falsePredicateBuilder = PredicateBuilder.False <CarAggregateViewModel>();
var lowerCaseAllSearch = filter.AllFieldsSearch.ToLower();
var searchWords = lowerCaseAllSearch.Split(new char[] { ' ', '.', ',', '?', '!' });
searchWords = searchWords.Where(s => !string.IsNullOrWhiteSpace(s)).ToArray();
var param = Expression.Parameter(typeof(CarAggregateViewModel));
var entityType = typeof(CarAggregateViewModel);
var propertyType = typeof(string);
var fields = entityType.GetFields()
.Where(f => f.FieldType == propertyType)
.Select(f => f.Name);
var properties = entityType.GetProperties()
.Where(p => p.PropertyType == propertyType)
.Select(p => p.Name);
var allFieldsNames = fields.Concat(properties);
foreach (var fieldName in allFieldsNames)
{
foreach (var searchWord in searchWords)
{
if (fieldName == "OptionsNamesString")
{
continue;
}
if (fieldName.Contains("Id"))
{
continue;
}
var predicateToAdd = Expression.Lambda <Func <CarAggregateViewModel, bool> >(
Expression.Call(Expression.PropertyOrField(param, fieldName),
typeof(string).GetMethod("Contains", new[] { typeof(string) }),
Expression.Constant(searchWord)
)
, param);
falsePredicateBuilder = falsePredicateBuilder.Or(predicateToAdd);
}
}
predicateBuilder = predicateBuilder.And(falsePredicateBuilder);
}
var result = _carRepository.GetCarsAggregateViewModel(predicateBuilder).ToList();
return(result);
}
