/// <summary>
/// Adds a spanning view to the passed structured data structure. Spanning views are available and applicable to all datasets associated with the data structure.
/// </summary>
/// <param name="dataStructure">The structured data structure to add the data view to.</param>
/// <param name="view">The data view to be linked to the data structure as a spanning view.</param>
public void AddDataView(BExIS.Dlm.Entities.DataStructure.StructuredDataStructure dataStructure, DataView view)
{
// view should not be connected to a Dataset. if so throw an exception and the caller must remove the relationship to that dataset and then add to a data structure
Contract.Requires(dataStructure != null && dataStructure.Id >= 0);
Contract.Requires(view != null && view.Id >= 0);
Contract.Requires(view.Dataset == null);
//Contract.Ensures(Contract.Result<StructuredDataStructure>() != null && Contract.Result<StructuredDataStructure>().Id >= 0);
StructuredDataStructureRepo.Reload(dataStructure);
StructuredDataStructureRepo.LoadIfNot(dataStructure.Views);
int count = (from v in dataStructure.Views
where v.Id.Equals(view.Id)
select v
)
.Count();
if (count > 0)
throw new Exception(string.Format("There is a connection between data structure {0} and view {1}", dataStructure.Id, view.Id));
dataStructure.Views.Add(view);
view.DataStructures.Add(dataStructure);
using (IUnitOfWork uow = this.GetUnitOfWork())
{
IRepository<StructuredDataStructure> repo = uow.GetRepository<StructuredDataStructure>();
repo.Put(dataStructure);
uow.Commit();
}
}
public DataView CreateDataView(string name, string contentSelectionCriterion, string containerSelectionCriterion, BExIS.Dlm.Entities.DataStructure.DataStructure dataStructure)
{
Contract.Requires(!string.IsNullOrWhiteSpace(name));
Contract.Requires(!string.IsNullOrWhiteSpace(contentSelectionCriterion) || !string.IsNullOrWhiteSpace(containerSelectionCriterion));
Contract.Requires(dataStructure != null);
Contract.Ensures(Contract.Result<DataView>() != null);
DataView e = new DataView()
{
Name = name,
ContentSelectionCriterion = contentSelectionCriterion,
ContainerSelectionCriterion = containerSelectionCriterion,
Dataset = null,
};
dataStructure.Views.Add(e);
e.DataStructures.Add(dataStructure);
using (IUnitOfWork uow = this.GetUnitOfWork())
{
// maybe there is a need for persisting the data structure also!
IRepository<DataView> repo = uow.GetRepository<DataView>();
repo.Put(e);
uow.Commit();
}
return (e);
}
/// <summary>
/// Removes the relationship between the structured data structure and the view, neither the data structure nor the view.
/// </summary>
/// <param name="dataStructure">The data structure to be release from the relationship.</param>
/// <param name="view">The view to be release from the relationship.</param>
public void RemoveDataView(BExIS.Dlm.Entities.DataStructure.UnStructuredDataStructure dataStructure, DataView view)
{
Contract.Requires(dataStructure != null && dataStructure.Id >= 0);
Contract.Requires(view != null && view.Id >= 0);
Contract.Requires(view.Dataset == null);
//Contract.Ensures(Contract.Result<UnStructuredDataStructure>() != null && Contract.Result<UnStructuredDataStructure>().Id >= 0);
UnStructuredDataStructureRepo.Reload(dataStructure);
UnStructuredDataStructureRepo.LoadIfNot(dataStructure.Views);
int count = (from v in dataStructure.Views
where v.Id.Equals(view.Id)
select v
)
.Count();
if (count <= 0)
throw new Exception(string.Format("There is no connection between data structure {0} and view {1}", dataStructure.Id, view.Id));
dataStructure.Views.Remove(view);
view.DataStructures.Remove(dataStructure);
using (IUnitOfWork uow = this.GetUnitOfWork())
{
IRepository<UnStructuredDataStructure> repo = uow.GetRepository<UnStructuredDataStructure>();
repo.Put(dataStructure);
uow.Commit();
}
//throw new NotImplementedException();
}
