public void RemoveEvent(NewsfeedEventModel entry, IEnumerable <string> followers)
{
var activityEntry = MapToActivity(entry);
var keys = MapRedisKeys(entry.ReferencePostId, followers);
var isPostRemoval = entry.ActionType == NewsfeedActionType.wallpost;
var transaction = StackExchangeRedisConnectionProvider.GetTransaction();
if (isPostRemoval)
{
foreach (var key in keys)
{
transaction.SetRemoveAsync(key.PostFeedKey, entry.ReferencePostId);
transaction.KeyDeleteAsync(key.PostActionsKey);
}
}
else
{
foreach (var key in keys)
{
transaction.SortedSetDecrementAsync(key.PostActionsKey, activityEntry, 1);
transaction.SortedSetRemoveRangeByScoreAsync(key.PostActionsKey, -10, 0);
}
}
transaction.Execute();
}
public void RefreshGroupWall(string groupId, IEnumerable <string> postIds)
{
var key = GetEntryKey(FeedPrefix, groupId);
var transaction = StackExchangeRedisConnectionProvider.GetTransaction();
foreach (var postId in postIds)
{
transaction.SetAddAsync(key, postId);
}
transaction.Execute();
}
public void AddEvent(NewsfeedEventModel entry, IEnumerable <string> followers)
{
var activityEntry = MapToActivity(entry);
var keys = MapRedisKeys(entry.ReferencePostId, followers);
var transaction = StackExchangeRedisConnectionProvider.GetTransaction();
foreach (var key in keys)
{
transaction.SetAddAsync(key.PostFeedKey, entry.ReferencePostId);
transaction.SortedSetIncrementAsync(key.PostActionsKey, activityEntry, 1);
}
transaction.Execute();
}
public void UpdateFeed(string userId, IEnumerable <NewsfeedEventModel> events)
{
var feedKey = GetEntryKey(FeedPrefix, userId);
var server = StackExchangeRedisConnectionProvider.GetServer();
var existingFeedKeys = server.Keys(pattern: feedKey).Select(p => (RedisKey)p).ToArray();
var transaction = StackExchangeRedisConnectionProvider.GetTransaction();
transaction.KeyDeleteAsync(existingFeedKeys);
foreach (var userEvent in events)
{
var activityEntry = MapToActivity(userEvent);
var actionKey = GetEntryKey(FeedPrefix, string.Concat(userId, ":", userEvent.ReferencePostId));
transaction.SetAddAsync(feedKey, userEvent.ReferencePostId);
transaction.SortedSetIncrementAsync(actionKey, activityEntry, 1);
}
transaction.Execute();
}
