tomferon / morph Goto Github PK

My installation with Cabal failed on Mac OS 10.14 while trying to install Spock, morph building failed with
src/Control/Monad/Trans/Compose.hs:60:7: error: Not in scope: type constructor or class ‘MonadFail’ | 60 | , MonadFail | ^^^^^^^^^
And when I'm trying to intsall only morph I've got a problem with postgresql package

/Users/me/.cabal/logs/ghc-8.6.3/pstgrsql-lbpq-0.9.4.3-198df10e.log
):
[1 of 1] Compiling Main             ( /var/folders/y2/0hb8j18x2mx699f66shljych0000gn/T/cabal-install.-37497/dist-newstyle/tmp/src-37498/postgresql-libpq-0.9.4.3/dist/setup/setup.hs, /var/folders/y2/0hb8j18x2mx699f66shljych0000gn/T/cabal-install.-37497/dist-newstyle/tmp/src-37498/postgresql-libpq-0.9.4.3/dist/setup/Main.o )
Linking /var/folders/y2/0hb8j18x2mx699f66shljych0000gn/T/cabal-install.-37497/dist-newstyle/tmp/src-37498/postgresql-libpq-0.9.4.3/dist/setup/setup ...
Configuring postgresql-libpq-0.9.4.3...
setup: The program 'pg_config' is required but it could not be found.

I don't know wether those two errors have the same cause or not.

When migrating, the down migrations should be updated if they change in the directory.

It would enable the following workflow as well as the ability to fix a broken down migration.

• Add both up and down migrations.
• Deploy to production with the ability to roll back.
• Delete the down migration from the repository.
• Deploy to production again.
• It's not possible to roll back anymore which is exactly what you want after a while.