public void Delete(ConstructionDataContext context)
{
var item = context.Files.FirstOrDefault(f => f.Id == Id);
if (item != null)
{
#region remove related entries
foreach (var c in context.CellMappings.Where(w => w.FileId == item.Id))
{
context.CellMappings.Remove(c);
}
foreach (var c in context.BusinessFeatures.Where(w => w.FileId == item.Id))
{
context.BusinessFeatures.Remove(c);
}
foreach (var c in context.BusinessValues.Where(w => w.FileId == item.Id))
{
context.BusinessValues.Remove(c);
}
foreach (var c in context.Constructions.Where(w => w.FileId == item.Id))
{
context.Constructions.Remove(c);
}
foreach (var c in context.ConstructionValues.Where(w => w.FileId == item.Id))
{
context.ConstructionValues.Remove(c);
}
foreach (var c in context.RiskLevels.Where(w => w.FileId == item.Id))
{
context.RiskLevels.Remove(c);
}
#endregion
context.Files.Remove(item);
context.SaveChanges();
}
}
//todo: create a abstract class
public void Update(ConstructionDataContext context)
{
context.Entry(this).State = EntityState.Modified;
context.SaveChanges();
}
public int Add(ConstructionDataContext context)
{
context.Files.Add(this);
context.SaveChanges();
return(Id);
}
public bool Exists(ConstructionDataContext context)
{
return(context.Files.Any(a => a.FileName == FileName));
}
public static File Select(ConstructionDataContext context, string name, FileType type)
{
return(context.Files.FirstOrDefault(f =>
f.FileName.Equals(name, StringComparison.CurrentCultureIgnoreCase) &&
f.Type == type));
}
