public virtual IList <T> GetList(Func <T, bool> where, params Expression <Func <T, object> >[] navigationProperties)
{
List <T> list;
try
{
using (var context = new WebPresenceEntities())
{
IQueryable <T> dbQuery = context.Set <T>();
foreach (Expression <Func <T, object> > navigationProperty in navigationProperties)
{
dbQuery = dbQuery.Include(navigationProperty);
}
list = dbQuery
.AsNoTracking()
.Where(where)
.ToList();
return(list);
}
}
catch (Exception ex)
{
LogManager.Instance.Log(string.Format(DataMesages.DataError, ex.Message, typeof(T).FullName), ex, LoggingLevel.Error);
return(null);
}
}
public virtual T GetSingle(Func <T, bool> where, params Expression <Func <T, object> >[] navigationProperties)
{
T item = null;
try
{
using (var context = new WebPresenceEntities())
{
IQueryable <T> dbQuery = context.Set <T>();
foreach (Expression <Func <T, object> > navigationProperty in navigationProperties)
{
dbQuery = dbQuery.Include <T, object>(navigationProperty);
}
item = dbQuery
.AsNoTracking() //Don't track any changes for the selected item
.FirstOrDefault(where); //Apply where clause
}
return(item);
}
catch (Exception ex)
{
LogManager.Instance.Log(string.Format(DataMesages.DataError, ex.Message, typeof(T).FullName), ex, LoggingLevel.Error);
return(null);
}
}
public T Add(T item)
{
try
{
using (var context = new WebPresenceEntities())
{
context.Entry(item).State = EntityState.Added;
context.SaveChanges();
return(item);
}
}
catch (Exception ex)
{
LogManager.Instance.Log(string.Format(DataMesages.DataError, ex.Message, typeof(T).FullName), ex, LoggingLevel.Error);
return(null);
}
}
public bool Update(params T[] items)
{
try
{
using (var context = new WebPresenceEntities())
{
foreach (T item in items)
{
context.Entry(item).State = EntityState.Modified;
}
context.SaveChanges();
return(true);
}
}
catch (Exception ex)
{
LogManager.Instance.Log(string.Format(DataMesages.DataError, ex.Message, typeof(T).FullName), ex, LoggingLevel.Error);
return(false);
}
}
