Discussion board container/activity stream

8/31/2012 1:43:23 PM

2218 Reputation 300 Total posts

Hello,

To show only Discussion Topic events you will need to create your own Repository method to fetch only Discussion Topic event types and then you will need to inherit Events.ascx control and override its BindData Method.

Example repository method:

public virtual EntityCollection<SnEventEntity> GetEvents(Guid userId, int numberOfEvents, int pageIndex, int pageSize, out int recordCount)

{

EntityCollection<SnEventEntity> events = new EntityCollection<SnEventEntity>(new SnEventEntityFactory());

IRelationPredicateBucket filter = new RelationPredicateBucket();

filter.PredicateExpression.Add(FriendRepository.GetInstance().GetFriendshipFilter(userId));

filter.PredicateExpression.Add(SnEventFields.EventTypeId == SnEventTypeEntity.AddedDiscussionTopic.Id);

filter.Relations.Add(SnEventEntity.Relations.AspnetUsersEntityUsingUserId);

IPrefetchPath2 prefetchPath = new PrefetchPath2(EntityType.SnEventEntity);

prefetchPath.Add(SnEventEntity.PrefetchPathFriendAspnetUsers);

prefetchPath.Add(SnEventEntity.PrefetchPathBlogPost);

prefetchPath.Add(SnEventEntity.PrefetchPathSnAlbum);

prefetchPath.Add(SnEventEntity.PrefetchPathSnFile);

prefetchPath.Add(SnEventEntity.PrefetchPathSnGroup);

prefetchPath.Add(SnEventEntity.PrefetchPathAspnetUsers).SubPath.Add(AspnetUsersEntity.PrefetchPathUserProfile);

prefetchPath.Add(SnEventEntity.PrefetchPathSnDiscussionBoard);

prefetchPath.Add(SnEventEntity.PrefetchPathSnDiscussionTopic);

ISortExpression sortExpression = new SortExpression(new SortClause(SnEventFields.DateCreated, null, SortOperator.Descending));

FetchEntityCollection(events, filter, numberOfEvents, sortExpression, prefetchPath, pageIndex, pageSize);

recordCount = GetDbCount(events, filter);

return events;

}

Example BindData override:

MonoXCacheManager cacheManager = MonoXCacheManager.GetInstance(CacheKeys.Events.EventList, this.CacheDuration);

Guid userId = this.UserId;

if (userId == Guid.Empty)

userId = SecurityUtility.GetUserId();

PagedCollectionContainer bindContainer = cacheManager.Get<PagedCollectionContainer>(userId, this.NumberOfEventsToShow, this.ShowUserOwnEvents, PagedCollectionContainer.GetPagerCacheKey(pager)) ?? PagedCollectionContainer.GetInstance();

if (!bindContainer.HasValue)

{

bindContainer.Collection = EventRepository.GetInstance().GetEvents(userId, this.NumberOfEventsToShow, pager != null ? pager.CurrentPageIndex + 1 : 0, pager != null ? pager.PageSize : NumberOfEventsToShow, out bindContainer.RecordCount);

cacheManager.Store(bindContainer, userId, this.NumberOfEventsToShow, this.ShowUserOwnEvents, PagedCollectionContainer.GetPagerCacheKey(pager));

}

if (bindContainer.HasValue)

{

if (pager != null)

PagerUtility.BindPager(pager, BindData, lvItems, bindContainer.Collection, bindContainer.RecordCount);

}

Adding events for new topic replies is possible however it is currently not implemented in the current MonoX build. Here's what you will need to do:
1. Add a DiscussionMessage event type
2. Override in DiscussionMessages OnPost method and insert your custom event type
3. Expand the code which I posted above to include your custom event type

Regards,
Mario

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