private async Task HandleImpl(IVideoAdded busEvent)
{
// Record the id in our sample data tracking table
PreparedStatement prepared = await _statementCache.NoContext.GetOrAddAsync("INSERT INTO sample_data_videos (videoid) VALUES (?)");
await _session.ExecuteAsync(prepared.Bind(busEvent.VideoId)).ConfigureAwait(false);
}
private async Task HandleImpl(IVideoAdded video)
{
PreparedStatement[] prepared = await _statementCache.GetOrAddAllAsync(
"INSERT INTO videos_by_tag (tag, videoid, added_date, userid, name, preview_image_location, tagged_date) VALUES (?, ?, ?, ?, ?, ?, ?) USING TIMESTAMP ?",
"INSERT INTO tags_by_letter (first_letter, tag) VALUES (?, ?) USING TIMESTAMP ?");
// Create a batch for executing the updates
var batch = new BatchStatement();
// We need to add multiple statements for each tag
foreach (string tag in video.Tags)
{
// INSERT INTO videos_by_tag
batch.Add(prepared[0].Bind(tag, video.VideoId, video.AddedDate, video.UserId, video.Name, video.PreviewImageLocation, video.Timestamp,
video.Timestamp.ToMicrosecondsSinceEpoch()));
// INSERT INTO tags_by_letter
string firstLetter = tag.Substring(0, 1);
batch.Add(prepared[1].Bind(firstLetter, tag, video.Timestamp.ToMicrosecondsSinceEpoch()));
}
await _session.ExecuteAsync(batch).ConfigureAwait(false);
}