Story attachments

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Story attachments

Anton Kallenberg

Vote:

Hi!

When creating a NewsFeedStory I have a option to add story attachments as a collection of IEntity.

How do I query to get stories with related attachments? Have I misunderstanded the use of story attachments?

I want to add a story related to a club with a related attachment of a Topic

var storyAttachments = new EntityCollection(); storyAttachments.Add(topic);  var story = NewsFeedHandler.AddStoryToActorFeed(new NewsFeedStory(NewsFeedActions.ActionClubForumTopicCreated, CurrentUser, storyAttachments, CurrentClub));

I want to get all stories related to the specific club with attachments:

var stories = NewsFeedHandler.GetTargetFeed(CurrentClub, null, DateTime.MinValue, DateTime.MinValue, 1, int.MaxValue);

I cant see that "stories" in this case contains anything like attachments?

Regards,
Anton Kallenberg

#32176

Aug 25, 2009 10:33

Anton Kallenberg

Vote:

After spending some time with Reflector i found the object "NewsFeedStoryActor"

Final code, please correct me.

if (base.CurrentStory.Targets.Count > 0) { if (CurrentStory.Targets[0] is Club) { Club club = CurrentStory.Targets[0] as Club; var storyActor = NewsFeedHandler.GetStoryActor(CurrentStory.ID); if (storyActor.Attachments.Count > 0) { if (storyActor.Attachments[0] is Topic) { var topic = storyActor.Attachments[0] as Topic; if (topic != null) { //do stuff } } } } }

#32193

Aug 25, 2009 14:45

Vote:

The reason why they hide it behind the actor property is probably because that the story could be aggregated and the each actor has its own set of attachments.

Your code seems right. We wrapped it up in this extension method, it might help you:

public static T GetAttachmentOfType<T>(this NewsFeedStory story)
where T : class, IFrameworkEntity
{
NewsFeedStoryActor actor = story.Actors.FirstOrDefault();
if (actor == null)
return default(T);
else
return actor.Attachments.SingleOrDefault(att => att.GetType() == typeof(T)) as T;
}

#32225

Aug 26, 2009 11:40

Anton Kallenberg

Vote:

Hi!

Yeah probably, nice extension!

Thanks again!

#32226

Aug 26, 2009 11:45

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