groundhog: Type-safe datatype-database mapping library.

[ bsd3, database, library ] [ Propose Tags ]

This library maps your datatypes to a relational model, in a way similar to what ORM libraries do in object-oriented programming. The mapping can be configured to work with almost any schema. Groundhog supports schema migrations, composite keys, advanced expressions in queries, and much more. See tutorial and examples on GitHub.

Versions [faq] 0.0.1,, 0.1.0,,, 0.2.0, 0.3.0,, 0.3.1,, 0.4.0,,,, 0.4.1, 0.4.2,,, 0.5.0, 0.5.1, 0.6.0, 0.7.0,,,, 0.8,, 0.9.0, 0.10.0, 0.11.0
Change log changelog
Dependencies base (>=4.5 && <5), blaze-builder (==0.3.*), bytestring (>=0.10), containers (>=0.2), monad-control (==0.3.*), monad-logger (==0.3.*), mtl (>=2.0), text (>=0.8), time (>=1.1.4), transformers (>=0.2.1 && <0.5), transformers-base [details]
License BSD-3-Clause
Author Boris Lykah <>
Maintainer Boris Lykah <>
Revised Revision 2 made by HerbertValerioRiedel at 2015-08-21T22:07:45Z
Category Database
Home page
Source repo head: git clone git://
Uploaded by BorisLykah at 2014-12-02T21:20:53Z
Distributions LTSHaskell:0.10.0, NixOS:0.11.0, Stackage:0.10.0
Downloads 24496 total (9 in the last 30 days)
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Status Hackage Matrix CI
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