public void DeletePost(EntityReference forumPost)
{
if (forumPost == null)
{
throw new ArgumentNullException("forumPost");
}
var serviceContext = Dependencies.GetServiceContextForWrite();
var post = serviceContext.RetrieveSingle(new Fetch
{
Entity = new FetchEntity("adx_communityforumpost")
{
Filters = new[] { new Filter {
Conditions = new[]
{
new Condition("adx_communityforumpostid", ConditionOperator.Equal, forumPost.Id),
new Condition("adx_forumthreadid", ConditionOperator.Equal, this.ForumThread.Id)
}
} }
}
});
if (post == null)
{
throw new ArgumentException("Unable to find {0} {1}.".FormatWith(forumPost.LogicalName, forumPost.Id), "forumPost");
}
var thread = SelectEntity(serviceContext);
if (thread == null)
{
serviceContext.DeleteObject(post);
serviceContext.SaveChanges();
return;
}
var postReference = post.ToEntityReference();
var counterStrategy = Dependencies.GetCounterStrategy();
var threadPostCount = counterStrategy.GetForumThreadPostCount(serviceContext, thread);
var threadUpdate = new Entity(thread.LogicalName)
{
Id = thread.Id
};
threadUpdate["adx_postcount"] = threadPostCount < 1 ? 0 : threadPostCount - 1;
// If deleting first post, delete entire thread
if (Equals(thread.GetAttributeValue <EntityReference>("adx_firstpostid"), postReference))
{
var forumDataAdapter = new ForumDataAdapter(thread.GetAttributeValue <EntityReference>("adx_forumid"), Dependencies);
forumDataAdapter.DeleteThread(thread.ToEntityReference());
}
// Determine the new last post in the thread.
else if (Equals(thread.GetAttributeValue <EntityReference>("adx_lastpostid"), postReference))
{
var lastPostFetch = new Fetch
{
Entity = new FetchEntity("adx_communityforumpost")
{
Filters = new[]
{
new Filter
{
Conditions = new[]
{
new Condition("adx_forumthreadid", ConditionOperator.Equal, thread.Id),
new Condition("adx_communityforumpostid", ConditionOperator.NotEqual, post.Id)
}
}
},
Orders = new[] { new Order("adx_date", OrderType.Descending) }
},
PageNumber = 1,
PageSize = 1
};
var lastPost = serviceContext.RetrieveSingle(lastPostFetch);
if (lastPost == null)
{
throw new InvalidOperationException("Unable to determine new last post in thread.");
}
threadUpdate["adx_lastpostid"] = lastPost.ToEntityReference();
threadUpdate["adx_lastpostdate"] = lastPost.GetAttributeValue <DateTime?>("adx_date");
serviceContext.Detach(thread);
serviceContext.Attach(threadUpdate);
serviceContext.UpdateObject(threadUpdate);
serviceContext.DeleteObject(post);
serviceContext.SaveChanges();
}
var forumId = thread.GetAttributeValue <EntityReference>("adx_forumid");
if (forumId == null)
{
return;
}
var forumServiceContext = Dependencies.GetServiceContextForWrite();
var forum = forumServiceContext.RetrieveSingle("adx_communityforum", "adx_communityforumid", forumId.Id, FetchAttribute.All);
if (forum == null)
{
return;
}
// Update forum counts and pointers.
var forumCounts = counterStrategy.GetForumCounts(forumServiceContext, forum);
var forumUpdate = new Entity(forum.LogicalName)
{
Id = forum.Id
};
forumUpdate["adx_postcount"] = forumCounts.PostCount < 1 ? 0 : forumCounts.PostCount - 1;
var forumLastPost = forum.GetAttributeValue <EntityReference>("adx_lastpostid");
if (Equals(forumLastPost, postReference))
{
var lastUpdatedThreadFetch = new Fetch
{
Entity = new FetchEntity("adx_communityforumthread")
{
Filters = new[]
{
new Filter
{
Conditions = new[]
{
new Condition("adx_forumid", ConditionOperator.Equal, forum.Id),
new Condition("adx_lastpostid", ConditionOperator.NotNull)
}
}
},
Orders = new[] { new Order("adx_lastpostdate", OrderType.Descending) }
},
PageNumber = 1,
PageSize = 1
};
var lastUpdatedThread = forumServiceContext.RetrieveSingle(lastUpdatedThreadFetch);
forumUpdate["adx_lastpostid"] = lastUpdatedThread == null
? null
: lastUpdatedThread.GetAttributeValue <EntityReference>("adx_lastpostid");
}
forumServiceContext.Detach(forum);
forumServiceContext.Attach(forumUpdate);
forumServiceContext.UpdateObject(forumUpdate);
forumServiceContext.SaveChanges();
if (FeatureCheckHelper.IsFeatureEnabled(FeatureNames.TelemetryFeatureUsage))
{
PortalFeatureTrace.TraceInstance.LogFeatureUsage(FeatureTraceCategory.Forum, HttpContext.Current, "delete_forum_post", 1, forumPost, "delete");
}
}
public IForumPost CreatePost(IForumPostSubmission forumPost, bool incrementForumThreadCount = false)
{
if (forumPost == null)
{
throw new ArgumentNullException("forumPost");
}
ADXTrace.Instance.TraceInfo(TraceCategory.Application, "Start");
var serviceContext = Dependencies.GetServiceContextForWrite();
var thread = Select();
var locked = thread.Locked;
if (locked)
{
throw new InvalidOperationException("You can't create a new post because the forum is locked.");
}
var entity = new Entity("adx_communityforumpost");
entity["adx_forumthreadid"] = ForumThread;
entity["adx_name"] = Truncate(forumPost.Name, 100);
entity["adx_isanswer"] = forumPost.IsAnswer;
entity["adx_authorid"] = forumPost.Author.EntityReference;
entity["adx_date"] = forumPost.PostedOn;
entity["adx_content"] = forumPost.Content;
entity["adx_helpfulvotecount"] = forumPost.HelpfulVoteCount;
serviceContext.AddObject(entity);
serviceContext.SaveChanges();
var threadEntity = SelectEntity(serviceContext);
var threadUpdate = new Entity(threadEntity.LogicalName)
{
Id = threadEntity.Id
};
threadUpdate["adx_lastpostdate"] = forumPost.PostedOn;
threadUpdate["adx_lastpostid"] = entity.ToEntityReference();
threadUpdate["adx_postcount"] = threadEntity.GetAttributeValue <int?>("adx_postcount").GetValueOrDefault() + 1;
if (threadEntity.GetAttributeValue <EntityReference>("adx_firstpostid") == null)
{
threadUpdate["adx_firstpostid"] = entity.ToEntityReference();
}
serviceContext.Detach(threadEntity);
serviceContext.Attach(threadUpdate);
serviceContext.UpdateObject(threadUpdate);
serviceContext.SaveChanges();
var entityReference = entity.ToEntityReference();
var forumDataAdapter = new ForumDataAdapter(threadEntity.GetAttributeValue <EntityReference>("adx_forumid"), Dependencies);
forumDataAdapter.UpdateLatestPost(entityReference, incrementForumThreadCount);
foreach (var attachment in forumPost.Attachments)
{
IAnnotationDataAdapter da = new AnnotationDataAdapter(Dependencies);
da.CreateAnnotation(entityReference, string.Empty, string.Empty, attachment.Name, attachment.ContentType,
attachment.Content);
}
var post = SelectPost(entityReference.Id);
ADXTrace.Instance.TraceInfo(TraceCategory.Application, "End");
if (FeatureCheckHelper.IsFeatureEnabled(FeatureNames.TelemetryFeatureUsage))
{
PortalFeatureTrace.TraceInstance.LogFeatureUsage(FeatureTraceCategory.Forum, HttpContext.Current, "create_forum_post", 1, post.Entity.ToEntityReference(), "create");
}
return(post);
}
