public SaveResult Delete(object dtokey)
{
using (NosCoreContext context = DataAccessHelper.Instance.CreateContext())
{
DbSet <TEntity> dbset = context.Set <TEntity>();
if (dtokey is IEnumerable)
{
foreach (object key in dtokey as IEnumerable)
{
TEntity entityfound = dbset.Find(key);
if (entityfound != null)
{
dbset.Remove(entityfound);
context.SaveChanges();
}
}
}
else
{
TEntity entityfound = dbset.Find(dtokey);
if (entityfound != null)
{
dbset.Remove(entityfound);
}
}
context.SaveChanges();
return(SaveResult.Saved);
}
}
public IEnumerable <TDTO> LoadAll()
{
using (NosCoreContext context = DataAccessHelper.Instance.CreateContext())
{
DbSet <TEntity> dbset = context.Set <TEntity>();
foreach (TEntity t in dbset)
{
yield return(Mapper.Map <TDTO>(t));
}
}
}
public SaveResult InsertOrUpdate(IEnumerable <TDTO> dtos)
{
try
{
using (NosCoreContext context = DataAccessHelper.Instance.CreateContext())
{
context.ChangeTracker.AutoDetectChangesEnabled = false;
DbSet <TEntity> dbset = context.Set <TEntity>();
List <TEntity> entitytoadd = new List <TEntity>();
foreach (TDTO dto in dtos)
{
TEntity entity = Mapper.Map <TEntity>(dto);
object value = PrimaryKey.GetValue(dto, null);
TEntity entityfound = null;
if (value is object[])
{
entityfound = dbset.Find((object[])value);
}
else
{
entityfound = dbset.Find(value);
}
if (entityfound != null)
{
Mapper.Map(entity, entityfound);
context.Entry(entityfound).CurrentValues.SetValues(entity);
}
if (value == null || entityfound == null)
{
//add in a temp list in order to avoid find(default(PK)) to find this element before savechanges
entitytoadd.Add(entity);
}
}
dbset.AddRange(entitytoadd);
context.ChangeTracker.AutoDetectChangesEnabled = true;
context.SaveChanges();
return(SaveResult.Saved);
}
}
catch (Exception e)
{
Logger.Error(e);
return(SaveResult.Error);
}
}
public TDTO FirstOrDefault(Expression <Func <TEntity, bool> > predicate)
{
try
{
using (NosCoreContext context = DataAccessHelper.Instance.CreateContext())
{
DbSet <TEntity> dbset = context.Set <TEntity>();
IEnumerable <TEntity> entities = Enumerable.Empty <TEntity>();
TEntity ent = dbset.FirstOrDefault(predicate);
return(Mapper.Map <TDTO>(ent));
}
}
catch (Exception e)
{
Logger.Error(e);
return(default(TDTO));
}
}
public SaveResult InsertOrUpdate(ref TDTO dto)
{
try
{
using (NosCoreContext context = DataAccessHelper.Instance.CreateContext())
{
TEntity entity = Mapper.Map <TEntity>(dto);
DbSet <TEntity> dbset = context.Set <TEntity>();
object value = PrimaryKey.GetValue(dto, null);
TEntity entityfound = null;
if (value is object[])
{
entityfound = dbset.Find((object[])value);
}
else
{
entityfound = dbset.Find(value);
}
if (entityfound != null)
{
Mapper.Map(entity, entityfound);
context.Entry(entityfound).CurrentValues.SetValues(entity);
context.SaveChanges();
}
if (value == null || entityfound == null)
{
dbset.Add(entity);
}
context.SaveChanges();
dto = Mapper.Map <TDTO>(entity);
return(SaveResult.Saved);
}
}
catch (Exception e)
{
Logger.Error(e);
return(SaveResult.Error);
}
}
public IEnumerable <TDTO> Where(Expression <Func <TEntity, bool> > predicate)
{
using (NosCoreContext context = DataAccessHelper.Instance.CreateContext())
{
DbSet <TEntity> dbset = context.Set <TEntity>();
IEnumerable <TEntity> entities = Enumerable.Empty <TEntity>();
try
{
entities = dbset.Where(predicate).ToList();
}
catch (Exception e)
{
Logger.Error(e);
}
foreach (TEntity t in entities)
{
yield return(Mapper.Map <TDTO>(t));
}
}
}