Hi, going deeper i found the following:
http://hackage.haskell.org/packages/archive/haskelldb-hdbc/2.1.0/doc/html/src/Database-HaskellDB-HDBC.html#line-126 HaskellDB is converting from SqlTimestampT (no timezone defined) to CalendarTimeT (timezone required). This conversion tries then to be done using LocalTime ( http://hackage.haskell.org/packages/archive/HDBC/2.2.6.1/doc/html/src/Database-HDBC-SqlValue.html#line-735 ) which fails. I believe real problem is CalendarTimeT. SqlTimestampT clearly doesn't define a timezone. There's a need to create a new type to handle these types. Timestamps but no timezone (Localtime). I attach a patch for this. I tested this in a project. Not quite sure how to add the tests. What should i do to add this patch to haskell? A version dependency of this two should be added, Andras 2012/9/29 Andras Gyomrey <lgand...@gmail.com> > Hi, > > I get > > *** Exception: Convertible: error converting source data SqlLocalTime > 2012-04-27 10:22:15 of type SqlValue to type > Data.Time.LocalTime.LocalTime.ZonedTime: incompatible types > > when i try to show a record with a field of type CalendarTime > (automatically generated by Database.HaskellDB.DBDirect, Mysql database > type is "timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE > CURRENT_TIMESTAMP" > > I already looked forhttp:// > haskell.1045720.n5.nabble.com/programmatic-DB-interface-td3120759.html. > But the problem there is about a regexp (not a type). And the incompatible > type problem was caused because of a concatenation. Here, as you can see, i > have no idea what's going on. > > Can someone please help me? > > Andras > >
haskelldb-2.1.1.patch
Description: Binary data
haskelldb-hdbc-2.1.0.patch
Description: Binary data
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