示例#1
0
        public bool Destroy(IResource resource, bool permanent)
        {
            var instance = (Resource)resource;

            ((IPlugin)resource).Stop();

            // Load entity and relations to disconnect resource and remove from database
            using (var uow = UowFactory.Create())
            {
                var resourceRepository = uow.GetRepository <IResourceEntityRepository>();
                var relationRepository = uow.GetRepository <IResourceRelationRepository>();

                // Fetch entity and relations
                // Update properties on the references and get rid of relation entities
                var entity    = resourceRepository.GetByKey(instance.Id);
                var relations = ResourceRelationAccessor.FromEntity(uow, entity);
                foreach (var relation in relations)
                {
                    var reference = Graph.Get(relation.ReferenceId);

                    ResourceLinker.RemoveLinking(resource, reference);

                    if (permanent)
                    {
                        relationRepository.Remove(relation.Entity);
                    }
                }

                resourceRepository.Remove(entity, permanent);

                uow.SaveChanges();
            }

            // Unregister from all events to avoid memory leaks
            UnregisterEvents(instance);

            // Remove from internal collections
            var removed = Graph.Remove(instance);

            // Notify listeners about the removal of the resource
            if (removed && instance is IPublicResource publicResource)
            {
                RaiseResourceRemoved(publicResource);
            }

            // Destroy the object
            TypeController.Destroy(instance);

            return(removed);
        }