Added a transaction for handling the nextQuoteID.

Hsbot/Plugin/Quote.hs

@@ -101,8 +101,17 @@ setQuote quoteId theQuote = get >>= \db -> put db { quoteBotDB = M.insert quoteI
 getLastActiveQuote :: IRC.Channel -> Query QuoteDB (Maybe QuoteID)
 getLastActiveQuote channel = fmap (M.lookup channel) (asks lastActive)
 
+takeNextQuoteID :: IRC.UserName -> IRC.Channel -> UTCTime -> Update QuoteDB (QuoteID)
+takeNextQuoteID requestor channel now = do
+    db <- get
+    let quoteId = nextQuoteId db
+    put db { nextQuoteId = nextQuoteId db + 1
+           , lockedQuotes = M.insert quoteId (requestor, now) (lockedQuotes db)
+           , lastActive = M.insert channel quoteId (lastActive db) }
+    return quoteId
+
 $(makeAcidic ''QuoteDB [ 'getQuote, 'getQuoteDB, 'isQuoteLockedFor, 'lockQuoteIdFor, 'deleteQuote, 'setQuote
-                       , 'getLastActiveQuote ])
+                       , 'getLastActiveQuote, 'takeNextQuoteID ])
 
 -- | gets a random quote from the database
 getRandomQuote :: AcidState QuoteDB -> IO (Maybe Quote)