private void FillFilterExpression(RobotTypeFilterParams filterParams)
{
Expression <Func <RobotType, bool> > predicate = PredicateBuilder.New <RobotType>(true);
if (!string.IsNullOrEmpty(filterParams.Term))
{
predicate = predicate.Extend(t => t.Name.Contains(filterParams.Term));
}
filterParams.Expression = predicate;
}
public async Task <CollectionResult <RobotType> > GetTypesByFilterParamsAsync(RobotTypeFilterParams filterParams, CancellationToken ct = default)
{
IQueryable <RobotType> query = DbContext.RobotTypes.AsQueryable();
FillFilterExpression(filterParams);
query = query.Where(filterParams.Expression);
int totalCount = query.Count();
List <RobotType> items = await query
.OrderBy(x => x.Name)
.WithPagination(filterParams.Skip, filterParams.Take)
.AsNoTracking()
.ToListAsync(ct);
CollectionResult <RobotType> result = new CollectionResult <RobotType>
{
Collection = items,
TotalCount = totalCount
};
return(result);
}
