public void AddRelation()
{
BookRelationVM newRelation = SelectRelation(null);
if (newRelation != null)
{
if (!bookRelations.Contains(newRelation))
{
bookRelations.Add(newRelation);
}
SelectedRelationItem = newRelation;
}
}
public void Init(BookRelation fromRelation)
{
foreach (BookRelation relationModel in Book.BookRelations)
{
BookRelationVM relation = CreateRelation(relationModel);
bookRelations.Add(relation);
}
if (fromRelation != null && FindExistRelation(fromRelation) == null)
{
Book.BookRelations.Add(fromRelation);
bookRelations.Add(CreateRelation(fromRelation));
}
modelSyncher = new ModelSyncher <BookRelationVM, BookRelation>(this, bookRelations, Book.BookRelations);
}
public void EditRelation()
{
if (SelectedRelation == null)
{
return;
}
BookRelationVM newRelation = SelectRelation(SelectedRelation.BookRelation);
if (newRelation != null)
{
if (!bookRelations.Contains(newRelation))
{
int index = bookRelations.IndexOf(SelectedRelation);
bookRelations.RemoveAt(index);
bookRelations.Insert(index, newRelation);
}
SelectedRelationItem = newRelation;
}
}
private BookRelationVM CreateRelation(BookRelation relationModel)
{
ObservableCollection <ITitleProvider> objects = StudyUnit.RelatedMetaData(relationModel.BookRelationType);
string typeName = BookRelationItem.GetLabel(relationModel.BookRelationType);
ITitleProvider obj = SelectMetaDataWindowVM.Find(objects, relationModel.MetadataId);
string metaDataName = null;
if (obj != null)
{
metaDataName = obj.Title;
}
BookRelationVM relation = new BookRelationVM(relationModel)
{
Parent = this,
TypeName = typeName,
MetaDataName = metaDataName
};
return(relation);
}
private BookRelationVM SelectRelation(BookRelation selectedRelationModel)
{
BookRelationType type = BookRelationType.Abstract;
string metaDataId = null;
if (selectedRelationModel != null)
{
type = selectedRelationModel.BookRelationType;
metaDataId = selectedRelationModel.MetadataId;
}
SelectMetaDataWindowVM vm = new SelectMetaDataWindowVM(type, metaDataId)
{
Parent = this
};
vm.Init();
SelectMetaDataWindow window = new SelectMetaDataWindow(vm);
window.Owner = Window;
BookRelationVM relation = null;
if (window.ShowDialog() == true)
{
BookRelation relationModel = new BookRelation();
relationModel.BookRelationType = vm.BookRelationType;
ITitleProvider selectedObject = vm.SelectedObject as ITitleProvider;
if (selectedObject != null)
{
relationModel.MetadataId = selectedObject.Id;
}
relation = FindExistRelation(relationModel);
if (relation == null)
{
relation = CreateRelation(relationModel);
}
}
return(relation);
}
private BookRelationVM CreateRelation(BookRelation relationModel)
{
ObservableCollection<ITitleProvider> objects = StudyUnit.RelatedMetaData(relationModel.BookRelationType);
string typeName = BookRelationItem.GetLabel(relationModel.BookRelationType);
ITitleProvider obj = SelectMetaDataWindowVM.Find(objects, relationModel.MetadataId);
string metaDataName = null;
if (obj != null)
{
metaDataName = obj.Title;
}
BookRelationVM relation = new BookRelationVM(relationModel)
{
Parent = this,
TypeName = typeName,
MetaDataName = metaDataName
};
return relation;
}
