[Haskell-cafe] Inverse of HaskellDB
aslatter at gmail.com
Sat Sep 25 15:57:18 EDT 2010
That sounds pretty awesome to me.
Have you given any thought as to how you want to approach versioning?
Maybe I'm asking a silly question - I have very little real world experience
with relation databases and how to version schemas.
On Sep 25, 2010 2:31 PM, "Jonathan Geddes" <geddes.jonathan at gmail.com>
> HaskellDB takes a database schema and produces Haskell data structures
> (plus some other query-related stuff for its EDSL query language).
> What I'm looking for is the inverse of this functionality. I want to
> create tables based on a Haskell data structure with a few simple
> rules. These rules include: if a field is not of the form `Maybe a'
> then it can't be nullable in the database. If a field is not a
> primitive (in the database) then it is actually stored in another
> table and a reference id is stored in the table. Tables are produced
> recursively, unless they already exist, etc.
> The HaskellDB approach is great for interfacing with existing tables,
> but in my case I already have data structures and now I would like a
> quick way to create tables to persist them.
> Does such a thing exist? If not, would you find it useful? I may take
> this up as a side project if it does not already exist and others
> would find it useful.
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