/// <summary>
/// Deletes a dataset, which means the dataset is marked as deleted, but is not physically removed from the database.
/// </summary>
/// <param name="id">the identifier of the dataset to be purged.</param>
/// <remarks>When a dataset is deleted, it is consodered as non-exisiting, but for the sake or provenance, citation, history, etc, it is not removed froom the database.
/// The function to recover a deleted dataset, will not be provided.</remarks>
/// <returns></returns>
public ActionResult Delete(long id)
{
var datasetManager = new DatasetManager();
var entityPermissionManager = new EntityPermissionManager();
try
{
if (datasetManager.DeleteDataset(id, ControllerContext.HttpContext.User.Identity.Name, true))
{
//entityPermissionManager.Delete(typeof(Dataset), id); // This is not needed here.
if (this.IsAccessibale("DDM", "SearchIndex", "ReIndexUpdateSingle"))
{
var x = this.Run("DDM", "SearchIndex", "ReIndexUpdateSingle", new RouteValueDictionary()
{
{ "id", id }, { "actionType", "DELETE" }
});
}
}
}
catch (Exception e)
{
ViewData.ModelState.AddModelError("", $@"Dataset {id} could not be deleted.");
}
return(View());
//return RedirectToAction("List");
}
public void DeleteDatasetTest()
{
var dm = new DatasetManager();
var rsm = new ResearchPlanManager();
var mdm = new MetadataStructureManager();
try
{
var dsHelper = new DatasetHelper();
StructuredDataStructure dataStructure = dsHelper.CreateADataStructure();
dataStructure.Should().NotBeNull("Failed to meet a precondition: a data strcuture is required.");
var rp = dsHelper.CreateResearchPlan();
rp.Should().NotBeNull("Failed to meet a precondition: a research plan is required.");
var mds = mdm.Repo.Query().First();
mds.Should().NotBeNull("Failed to meet a precondition: a metadata strcuture is required.");
Dataset dataset = dm.CreateEmptyDataset(dataStructure, rp, mds);
dm.DeleteDataset(dataset.Id, "Javad", false);
dataset.Should().NotBeNull();
dataset.Id.Should().BeGreaterThan(0, "Dataset is not persisted.");
dataset.LastCheckIOTimestamp.Should().NotBeAfter(DateTime.UtcNow, "The dataset's timestamp is wrong.");
dataset.DataStructure.Should().NotBeNull("Dataset must have a data structure.");
dataset.Status.Should().Be(DatasetStatus.Deleted, "Dataset must be in Deleted status.");
dm.PurgeDataset(dataset.Id);
dsHelper.PurgeAllDataStructures();
}
finally
{
dm.Dispose();
rsm.Dispose();
mdm.Dispose();
}
}
public ActionResult Delete(long id)
{
using (var datasetManager = new DatasetManager())
using (var entityPermissionManager = new EntityPermissionManager())
using (var entityManager = new EntityManager())
using (var subjectManager = new SubjectManager())
using (var userManager = new UserManager())
{
try
{
var userName = GetUsernameOrDefault();
var user = userManager.Users.Where(u => u.Name.Equals(userName)).FirstOrDefault();
// check if a user is logged in
if (user != null)
{
// is the user allowed to delete this dataset
if (entityPermissionManager.HasEffectiveRight(user.UserName, typeof(Dataset), id, Security.Entities.Authorization.RightType.Delete))
{
//try delete the dataset
if (datasetManager.DeleteDataset(id, ControllerContext.HttpContext.User.Identity.Name, true))
{
//send email
var es = new EmailService();
es.Send(MessageHelper.GetDeleteDatasetHeader(id),
MessageHelper.GetDeleteDatasetMessage(id, user.Name),
ConfigurationManager.AppSettings["SystemEmail"]
);
//entityPermissionManager.Delete(typeof(Dataset), id); // This is not needed here.
if (this.IsAccessible("DDM", "SearchIndex", "ReIndexUpdateSingle"))
{
var x = this.Run("DDM", "SearchIndex", "ReIndexUpdateSingle", new RouteValueDictionary()
{
{ "id", id }, { "actionType", "DELETE" }
});
}
}
}
else // user is not allowed
{
ViewData.ModelState.AddModelError("", $@"You do not have the permission to delete the record.");
var es = new EmailService();
es.Send(MessageHelper.GetTryToDeleteDatasetHeader(id),
MessageHelper.GetTryToDeleteDatasetMessage(id, GetUsernameOrDefault()),
ConfigurationManager.AppSettings["SystemEmail"]
);
}
}
else // no user exist
{
ViewData.ModelState.AddModelError("", $@"This function can only be executed with a logged-in user.");
var es = new EmailService();
es.Send(MessageHelper.GetTryToDeleteDatasetHeader(id),
MessageHelper.GetTryToDeleteDatasetMessage(id, userName),
ConfigurationManager.AppSettings["SystemEmail"]
);
}
}
catch (Exception e) //for technical reasons the dataset cannot be deleted
{
ViewData.ModelState.AddModelError("", $@"Dataset {id} could not be deleted.");
}
}
return(View());
}
