public static List <Brand> GetBrands()
{
try
{
using (var db = new MobilePhonesContext())
{
return(db.Brands.ToList());
}
}
catch (Exception e)
{
LogHelper.LogError(e);
return(new List <Brand>());
}
}
public static Phone GetPhone(int id)
{
try
{
using (var db = new MobilePhonesContext())
{
return(db.Phones.Include(p => p.Photos).Include(p => p.Brand).FirstOrDefault(p => p.Id == id));
}
}
catch (Exception e)
{
LogHelper.LogError(e);
return(null);
}
}
public static double GetPageCount(string searchTermPhone, int?searchTermBrand, int?searchTermMinPrice, int?searchTermMaxPrice)
{
try
{
using (var db = new MobilePhonesContext())
{
var query = GetPhoneQuery(db, searchTermPhone, searchTermBrand, searchTermMinPrice, searchTermMaxPrice);
return(Math.Ceiling(1.0 * query.Count() / 6));
}
}
catch (Exception e)
{
LogHelper.LogError(e);
return(1);
}
}
public static List <Phone> GetPhones(int activePage, string searchTermPhone, int?searchTermBrand, int?searchTermMinPrice, int?searchTermMaxPrice)
{
try
{
using (var db = new MobilePhonesContext())
{
var query = GetPhoneQuery(db, searchTermPhone, searchTermBrand, searchTermMinPrice, searchTermMaxPrice);
return(query.Include(p => p.Photos).OrderByDescending(p => p.Id).Skip(6 * (activePage - 1)).Take(6).ToList());
}
}
catch (Exception e)
{
LogHelper.LogError(e);
return(new List <Phone>());
}
}
private static IQueryable <Phone> GetPhoneQuery(MobilePhonesContext db, string searchTermPhone, int?searchTermBrand, int?searchTermMinPrice, int?searchTermMaxPrice)
{
IQueryable <Phone> query = db.Phones;
if (searchTermPhone != null)
{
query = query.Where(p => p.Name.Contains(searchTermPhone));
}
if (searchTermBrand != null)
{
query = query.Where(p => p.BrandId == searchTermBrand);
}
if (searchTermMinPrice != null)
{
query = query.Where(p => p.Price >= searchTermMinPrice);
}
if (searchTermMaxPrice != null)
{
query = query.Where(p => p.Price <= searchTermMaxPrice);
}
return(query);
}