[Haskelldb-users] Patch for review: Template Haskell function for HaskellDB

[Justin B. <jgb...@gm...>]

All,

Attached you'll find a patch which adds several useful Template
Haskell functions to haskelldb. They are not intended to be part of
the base haskelldb install, so no new dependency on TH is introduced.
Instead, they are in a haskelldb-th directory under the haskelldb
source distribution, similar to how the driver files are distributed.
Building and installing the package is easy:

  cd haskelldb-th
  runhaskell Setup.hs configure
  runhaskell Setup.hs build
  runhaskell Setup.hs haddock
  runhaskell Setup.hs install

Only one module is exported at this time - Database.HaskellDB.CodeGen.
The functions exported are:

  mkField, mkFieldWithName, mkDBDirectField - Create compile-time
field declarations with various levels of control over names.
  mkDBDirectTable, mkDBDirectTableWithName, mkDBDirectTableType --
Create compile-time table declarations and  type synonyms, with
various degrees of control over names or individual piece.
  mkRecord - Provides a simpler way to build projections from multiple
tables and fields.

Comments and suggestions welcome! If this patch is accepted, I will
upload the package to hackage so it is available as a separate
download. Of course, it depends on haskelldb 0.11, so that will need
to be updated first.

Justin

p.s. haskelldb actually has some legacy functions in
test/old/THField.hs that are similar to these, but I discovered those
after I'd written mine, plus they aren't quite as robust.