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make migration rerunnable

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nek0 2016-11-20 08:14:03 +01:00
parent a8f6c6d6dd
commit 67c6dd475f
1 changed files with 5 additions and 1 deletions
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6
Migrations/0.1.3.3-0.1.4.0/Migration.hs
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@ -3,6 +3,7 @@ import Database.HDBC.PostgreSQL
import System.IO
import System.Directory
import Control.Exception
import Control.Monad (when)
import Data.Maybe (fromJust)
import qualified Data.Text as T
import qualified Data.ByteString.Char8 as B
@ -78,7 +79,10 @@ main = do
pPix = scale (pWidth, pHeight) orig
savePngImage tPath $ ImageRGBA8 tPix
savePngImage pPath $ ImageRGBA8 pPix
mapM (removeFile . (FP.</>) pathPrefix) [oldThumbName, oldPrevName]
mapM (\x -> do
let fullpath = pathPrefix FP.</> x
dfe <- doesFileExist fullpath
when dfe (removeFile fullpath)) [oldThumbName, oldPrevName]
return [SqlByteString (B.pack $ '/':tPath), SqlByteString (B.pack $ '/':pPath), theId]
_ ->
error "malformed entry"