private static string /*letter id*/ CreateLetterInternal(string board_id, string discussion_id,
string creator, string words, Subtype subtype, string delta_flags)
{
string partition_key = SandId.CombineId(board_id, discussion_id);
if (NextIdStore.GetLastId(Warehouse.DiscussionLoadTable, partition_key) >= HeartsConfiguration.MAX_NUM_OF_LETTERS_IN_A_DISCUSSION)
{
Util.ThrowBadRequestException("留言數超過上限（" + HeartsConfiguration.MAX_NUM_OF_LETTERS_IN_A_DISCUSSION + "）則。");
}
int next_id = NextIdStore.Next(Warehouse.DiscussionLoadTable, partition_key); // null reference exception for nonexistent board id.
string letter_id = SandId.MakeLetterId(next_id);
// if exception is thrown after getting id, the id is lost.
DynamicTableEntity entity = new DynamicTableEntity(partition_key, letter_id);
LetterConverter.CreateLetterEntity(entity, creator, words, subtype, delta_flags, board_id, discussion_id);
//
Warehouse.DiscussionLoadPond.Get(board_id, discussion_id).AddLetter(entity);
Warehouse.DiscussionSummaryPond.Get(board_id, discussion_id).AddLetter(entity);
Warehouse.DiscussionLoadTable.Execute(TableOperation.Insert(entity));
//
return(letter_id);
}
public static void GetLastLetters(string board_id, string discussion_id, int cnt, Action <DynamicTableEntity> act)
{
string partition_key = SandId.CombineId(board_id, discussion_id);
int last_id = NextIdStore.GetLastId(Warehouse.DiscussionLoadTable, partition_key);
if (last_id != -1)
{
Warehouse.DiscussionLoadTable.EnumerateRowRange(partition_key, SandId.LETTER_ID_PREFIX, last_id - cnt + 1, cnt, act);
}
}
public static void GetLastDiscussions(string board_id, int cnt, Action <DynamicTableEntity> act)
{
string partition_key = board_id;
int last_id = NextIdStore.GetLastId(Warehouse.DiscussionListTable, partition_key);
if (last_id != -1)
{
Warehouse.DiscussionListTable.EnumerateRowRange(partition_key, SandId.DISCUSSION_ID_PREFIX, last_id - cnt + 1, cnt, act);
}
}
