thma/generic-persistence-demo

this project contains some usage demos of the generic-persistence library

generic-persistence-demo's Issues

cabal fails to build and main.hs error and stack error

nix-shell -p ghc cabal-install stack sqilite
cabal configure
cabal update
cabal build

` Compiling Main ( app/Main.hs, /root/clone/generic-persistence-demo/dist-newstyle/build/x86_64-linux/ghc-9.2.7/generic-persistence-demo-0.1.0.0/x/generic-persistence-demo-exe/build/generic-persistence-demo-exe/generic-persistence-demo-exe-tmp/Main.o )

app/Main.hs:58:13: error:
Variable not in scope: retrieveById :: Conn -> String -> IO a2
|
58 | alice' <- retrieveById @person conn "123456"
| ^^^^^^^^^^^^

app/Main.hs:62:17: error:
Variable not in scope: retrieveAll :: Conn -> IO a1
|
62 | allPersons <- retrieveAll @person conn
| ^^^^^^^^^^^

app/Main.hs:69:18: error:
Variable not in scope: retrieveAll :: Conn -> IO [Person]
|
69 | allPersons' <- retrieveAll conn :: IO [Person]
| ^^^^^^^^^^^

app/Main.hs:97:13: error:
Variable not in scope:
retrieveById :: Conn -> Int -> IO (Maybe Person)
|
97 | alice' <- retrieveById conn (123456 :: Int) :: IO (Maybe Person)
| ^^^^^^^^^^^^

app/Main.hs:101:17: error:
Variable not in scope: retrieveAll :: Conn -> IO [Person]
|
101 | allPersons <- retrieveAll conn :: IO [Person]
| ^^^^^^^^^^^

app/Main.hs:108:18: error:
Variable not in scope: retrieveAll :: Conn -> IO [Person]
|
108 | allPersons' <- retrieveAll conn :: IO [Person]
| ^^^^^^^^^^^

app/Main.hs:116:15: error:
Variable not in scope: retrieveAll :: Conn -> IO [Book]
|
116 | allBooks <- retrieveAll conn :: IO [Book]
| ^^^^^^^^^^^

app/Main.hs:123:16: error:
Variable not in scope: retrieveAll :: Conn -> IO [Book]
|
123 | allBooks' <- retrieveAll conn :: IO [Book]
| ^^^^^^^^^^^

app/Main.hs:174:14: error:
Variable not in scope: retrieveAll :: Conn -> IO (t0 a0)
|
174 | people' <- retrieveAll @person conn
| ^^^^^^^^^^^
Error: cabal: Failed to build exe:generic-persistence-demo-exe from
generic-persistence-demo-0.1.0.0.
Stack error
DBC-sqlite3 > library file does exist, it may contain errors that are caught by the C
`