/// <summary>
/// Delete all bars from database
/// </summary>
public void DeleteAll()
{
using (BarGraphEntities data = new BarGraphEntities())
{
using (DbContextTransaction transaction = data.Database.BeginTransaction())
{
try
{
var existBars = data.Bars.Where(con => con.DeleteDate == null).ToList();
existBars.ForEach(item => item.DeleteDate = DateTime.Now);
data.SaveChanges();
transaction.Commit();
}
catch (Exception)
{
transaction.Rollback();
}
}
}
}
/// <summary>
/// Delete bar by id
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public bool DeleteById(int id)
{
using (BarGraphEntities data = new BarGraphEntities())
{
using (DbContextTransaction transaction = data.Database.BeginTransaction())
{
try
{
var existBar = data.Bars.Single(con => con.DeleteDate == null && con.BarId == id);
existBar.DeleteDate = DateTime.Now;
data.SaveChanges();
transaction.Commit();
return(true);
}
catch (Exception)
{
transaction.Rollback();
return(false);
}
}
}
}
/// <summary>
/// Add new or override old bars with new data
/// </summary>
/// <param name="bars"> new data list for upload </param>
/// <returns></returns>
public List <BarModel> UploadData(List <BarModel> bars)
{
List <BarModel> returnBars = new List <BarModel>();
using (BarGraphEntities data = new BarGraphEntities())
{
using (DbContextTransaction transaction = data.Database.BeginTransaction())
{
try
{
//Read old data and prepare for update (set end date)
var existBars = data.Bars.Where(con => con.DeleteDate == null).ToList();
existBars.ForEach(item => item.DeleteDate = DateTime.Now);
//Prapare new data for insert
foreach (var bar in bars)
{
data.Bars.Add(BarMapping.MapBussinesObjectToDataObject(bar));
}
data.SaveChanges();
transaction.Commit();
returnBars = BarMapping.MapDataObjectListToBussinesObjectList(
data.Bars
.Where(cond => cond.DeleteDate == null)
.ToList()
);
}
catch (Exception)
{
transaction.Rollback();
}
}
}
return(returnBars);
}