public long Add(IItemDAO dao)
{
long id = 0;
DataModel.tblItem item = new DataModel.tblItem();
item.Name = dao.Name;
item.ParameterA = dao.ParameterA;
item.ParameterB = dao.ParameterB;
try
{
using (DataModel.DatabaseEntities db = new DataModel.DatabaseEntities())
{
db.tblItems.Add(item);
int i = db.SaveChanges();
id = item.ID;
}
}
catch
{
id = 0;
}
return(id);
}
public bool Delete(long id)
{
bool res = false;
try
{
using (DataModel.DatabaseEntities db = new DataModel.DatabaseEntities())
{
DataModel.tblItem item = db.tblItems.Where(x => x.ID == id).FirstOrDefault();
if (item != null)
{
db.tblItems.Remove(item);
db.SaveChanges();
}
}
res = true;
}
catch
{
res = false;
}
return(res);
}
public bool Update(IItemDAO dao)
{
bool res = false;
try
{
using (DataModel.DatabaseEntities db = new DataModel.DatabaseEntities())
{
DataModel.tblItem item = db.tblItems.Where(x => x.ID == dao.ID).FirstOrDefault();
if (item != null)
{
item.Name = dao.Name;
item.ParameterA = dao.ParameterA;
item.ParameterB = dao.ParameterB;
int i = db.SaveChanges();
res = true;
}
}
}
catch
{
res = false;
}
return(res);
}
public IItemDAO Get(long id)
{
IItemDAO res = null;
try
{
using (DataModel.DatabaseEntities db = new DataModel.DatabaseEntities())
{
res = db.tblItems.Where(x => x.ID == id).FirstOrDefault();
}
}
catch (Exception ex)
{
res = null;
}
return(res);
}
public bool IsExist(long id)
{
bool res = false;
try
{
using (DataModel.DatabaseEntities db = new DataModel.DatabaseEntities())
{
IItemDAO item = db.tblItems.Where(x => x.ID == id).FirstOrDefault();
if (item != null)
{
res = true;
}
}
}
catch
{
res = false;
}
return(res);
}
public List <IItemDAO> GetAll()
{
List <IItemDAO> res = null;
try
{
using (DataModel.DatabaseEntities db = new DataModel.DatabaseEntities())
{
res = db.tblItems.ToList <IItemDAO>();
}
}
catch
{
res = null;
}
if (res == null)
{
res = new List <IItemDAO>();
}
return(res);
}
