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Complete functions #15

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MasseR merged 3 commits from sandbox/MasseR/14-error-types into master 2018-08-15 22:10:16 +03:00
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src/Database/Channel.hs
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@ -51,8 +51,8 @@ booksChannels bookId = fromRels <$> query q
attachChannel :: (MonadMask m, MonadIO m, MonadSelda m) => Username -> BookID -> Text -> m () attachChannel :: (MonadMask m, MonadIO m, MonadSelda m) => Username -> BookID -> Text -> m ()
attachChannel username bookId channel = do attachChannel username bookId channel = do
-- XXX: test what happens if channel doesn't exist mCh <- fromRels <$> query channelQ
[Channel{identifier}] <- fromRels <$> query channelQ forM_ mCh $ \Channel{identifier} ->
whenM (null <$> query (attachQ identifier)) $ whenM (null <$> query (attachQ identifier)) $
void $ insertGen bookChannels [BookChannel identifier bookId] void $ insertGen bookChannels [BookChannel identifier bookId]
where where