/// <summary>
/// Diese Methode liefert die höchste installierte DBVersion
/// </summary>
/// <returns></returns>
public DBVersion HighestVersion()
{
using (var ctx = new VersionContext(this.NameOrConnectionString))
{
return ctx.DBVersions.OrderByDescending(e => e.PrimaryVersion).OrderByDescending(e => e.SecondaryVersion).FirstOrDefault();
}
}
/// <summary>
/// Diesst die Konfiguration mit dem angegebenen Pfad
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
public DBVersion GetEntityById(long id)
{
using (var ctx = new VersionContext(this.NameOrConnectionString))
{
return ctx.DBVersions.Where(e => e.Id == id).FirstOrDefault();
}
}
/// <summary>
/// Diese Methode liefert die letzte ausgeführte SQL-Querries
/// </summary>
/// <returns></returns>
public DBVersion LastExecuted()
{
using (var ctx = new VersionContext(this.NameOrConnectionString))
{
return ctx.DBVersions.OrderByDescending(e => e.Installdate).FirstOrDefault();
}
}
/// <summary>
/// Liefert alle Gruppen nach den Campagnenname sortiert
/// </summary>
/// <returns></returns>
public List<DBVersion> GetAllEntities()
{
using (var ctx = new VersionContext(this.NameOrConnectionString))
{
return ctx.DBVersions.ToList();
}
}
/// <summary>
/// Diese Methode speichert eine DBVersion-Entität
/// </summary>
/// <param name="entity">
/// Die zu speichernde Entität
/// </param>
/// <returns>
/// Die gespeicherte Entität
/// </returns>
public DBVersion SaveUpdateEntity(DBVersion entity)
{
using (var context = new VersionContext(this.NameOrConnectionString))
{
if (context.GetValidationErrors() != null && context.GetValidationErrors().Count() > 0)
{
//TODO: Erweitern um den Fehler
throw new ValidationException();
}
if (GetEntityById(entity.Id) == null)
{
context.DBVersions.Add(entity);
}
else
{
context.DBVersions.Attach(entity);
context.Entry(entity).State = System.Data.Entity.EntityState.Modified;
}
context.SaveChanges();
return entity;
}
}