C# DatabaseObjectProvider.Delete方法代碼示例

 public void CanInsertAndDeleteImage()
 {
     var repository = new DatabaseObjectProvider();
     int imageId = 0;
     Image image = CreateImageInstance();
     image.IsActive = true;
     Image loadedImage = null;
     try
     {
         imageId = repository.Insert(image, singlePixelBytes);
         loadedImage = repository.GetImage(imageId, false /* activeOnly */);
         Assert.IsNotNull(loadedImage);
         Assert.AreEqual(image.CategoryID, loadedImage.CategoryID);
     }
     finally
     {
         if (loadedImage != null)
         {
             repository.Delete(loadedImage);
         }
         Assert.IsNull(repository.GetImage(imageId, false /* activeOnly */));
     }
 }

 public void DeleteImageThrowsArgumentNullException()
 {
     var repository = new DatabaseObjectProvider();
     UnitTestHelper.AssertThrowsArgumentNullException(() => repository.Delete((Image)null));
 }

        public void DestroyCommentByStatusDestroysOnlyThatStatus()
        {
            Entry entry = SetupBlogForCommentsAndCreateEntry();
            var repository = new DatabaseObjectProvider();
            CreateApprovedComments(3, entry);
            CreateFlaggedSpam(2, entry);
            CreateDeletedComments(3, entry);

            FeedbackItem newComment = CreateAndUpdateFeedbackWithExactStatus(entry, FeedbackType.Comment,
                                                                             FeedbackStatusFlag.Approved);
            repository.ConfirmSpam(newComment, null);
            newComment = CreateAndUpdateFeedbackWithExactStatus(entry, FeedbackType.Comment,
                                                                FeedbackStatusFlag.FlaggedAsSpam);
            Assert.IsFalse(newComment.Approved, "should not be approved");
            repository.Delete(newComment); //Move it to trash.

            FeedbackCounts counts = repository.GetFeedbackCounts();
            Assert.AreEqual(3, counts.ApprovedCount, "Expected three approved still");
            Assert.AreEqual(2, counts.FlaggedAsSpamCount, "Expected two items flagged as spam.");
            Assert.AreEqual(5, counts.DeletedCount, "Expected five in the trash");

            repository.Destroy(FeedbackStatusFlag.FlaggedAsSpam);
            counts = repository.GetFeedbackCounts();
            Assert.AreEqual(3, counts.ApprovedCount, "Expected three approved still");
            Assert.AreEqual(0, counts.FlaggedAsSpamCount, "Expected the items flagged as spam to be gone.");
            Assert.AreEqual(5, counts.DeletedCount, "Destroying all flagged items should not touch the trash bin.");

            CreateFlaggedSpam(3, entry);
            counts = repository.GetFeedbackCounts();
            Assert.AreEqual(3, counts.FlaggedAsSpamCount, "Expected three items flagged as spam.");

            repository.Destroy(FeedbackStatusFlag.Deleted);
            counts = repository.GetFeedbackCounts();
            Assert.AreEqual(3, counts.ApprovedCount, "Expected three approved still");
            Assert.AreEqual(3, counts.FlaggedAsSpamCount, "Expected three approved still");
            Assert.AreEqual(0, counts.DeletedCount, "Destroying all deleted items should not touch the flagged items.");
        }

        public void OnlyApprovedItemsContributeToEntryFeedbackCount()
        {
            Entry entry = SetupBlogForCommentsAndCreateEntry();
            var repository = new DatabaseObjectProvider();
            int entryId = entry.Id;

            CreateAndUpdateFeedbackWithExactStatus(entry, FeedbackType.Comment, FeedbackStatusFlag.Approved);
            entry = UnitTestHelper.GetEntry(entryId, PostConfig.None, false);
            Assert.AreEqual(1, entry.FeedBackCount, "Expected one approved feedback entry.");

            FeedbackItem comment = CreateAndUpdateFeedbackWithExactStatus(entry, FeedbackType.Comment,
                                                                          FeedbackStatusFlag.FlaggedAsSpam);
            entry = UnitTestHelper.GetEntry(entryId, PostConfig.None, false);
            Assert.AreEqual(1, entry.FeedBackCount, "Expected one approved feedback entry.");

            comment.Approved = true;
            repository.Update(comment);
            entry = UnitTestHelper.GetEntry(entryId, PostConfig.None, false);
            Assert.AreEqual(2, entry.FeedBackCount,
                            "After approving the second comment, expected two approved feedback entry.");

            comment.Approved = false;
            repository.Update(comment);
            entry = UnitTestHelper.GetEntry(entryId, PostConfig.None, false);
            Assert.AreEqual(1, entry.FeedBackCount,
                            "After un-approving the second comment, expected one approved feedback entry.");

            repository.Delete(comment);
            entry = UnitTestHelper.GetEntry(entryId, PostConfig.None, false);
            Assert.AreEqual(1, entry.FeedBackCount,
                            "After un-approving the second comment, expected one approved feedback entry.");
        }

        public void DeleteCommentSetsDeletedBit()
        {
            Entry entry = SetupBlogForCommentsAndCreateEntry();
            var repository = new DatabaseObjectProvider();
            FeedbackItem comment = CreateAndUpdateFeedbackWithExactStatus(entry, FeedbackType.Comment, FeedbackStatusFlag.Approved);
            Assert.IsTrue(comment.Approved, "should be approved");

            repository.Delete(comment);
            comment = repository.Get(comment.Id);
            Assert.IsFalse(comment.Approved, "Should not be approved now.");
            Assert.IsTrue(comment.Deleted, "Should be moved to deleted folder now.");
        }