/// <summary>
/// Gets the packages.
/// </summary>
/// <returns>
/// get all packages
/// </returns>
public IList<Package> GetPackages()
{
lock (this.dataContextLock)
{
this.CreateDBIfNotExist();
using (var dataContext = new DBContext())
{
return dataContext.PackageTable.OrderByDescending(m => m.PackageId).ToList();
}
}
}
/// <summary>
/// Gets the package.
/// </summary>
/// <param name="packageId">The package id.</param>
/// <returns>
/// package id
/// </returns>
public Package GetPackage(int packageId)
{
lock (this.dataContextLock)
{
this.CreateDBIfNotExist();
using (var dataContext = new DBContext())
{
var queryPackage = from item in dataContext.PackageTable where item.PackageId == packageId select item;
if (queryPackage.Any())
{
return queryPackage.First();
}
else
{
return null;
}
}
}
}
/// <summary>
/// Inserts the or update package.
/// </summary>
/// <param name="package">The package.</param>
public void InsertOrUpdatePackage(Package package)
{
lock (this.dataContextLock)
{
this.CreateDBIfNotExist();
using (var dataContext = new DBContext())
{
var queryPackage = from item in dataContext.PackageTable where item.PackageId == package.PackageId select item;
if (queryPackage.Any())
{
Package databasePackage = queryPackage.First();
databasePackage.CopyFrom(package);
}
else
{
dataContext.PackageTable.InsertOnSubmit(package);
}
dataContext.SubmitChanges();
}
}
}
/// <summary>
/// Creates the DB if not exist.
/// </summary>
private void CreateDBIfNotExist()
{
lock (this.dataContextLock)
{
using (var dataContext = new DBContext())
{
if (!dataContext.DatabaseExists())
{
dataContext.CreateDatabase();
}
}
}
}
