This is a good candidate for raw where clauses in the spirit of RoR's active record.  (How we make those type-safe, I don't know.. I'll give it some thought)


On Thu, May 12, 2011 at 2:24 PM, Max Cantor <mxcantor@gmail.com> wrote:
liftM2 (nub . (++)) (selectList [TableF1Eq v1, TableF2Eq v2] [] 0 0)
                   (selectList [TableF1Eq v1, TableF3Eq v2] [] 0 0)

its not very efficient, and mike will yell at me for using nub, but its good enough for 230 am.

goodnight, max

On May 13, 2011, at 2:15 AM, Anton Cheshkov wrote:

> Hi All,
>
> i have the difficulty to  build query kind of
>
> select * from Table T where T.f1 = v1 and (T.f2 = v2 or T.f3 = v2)
>
> how to make this one with Yesod Persistent. Are there any ideas ?
>
> Thanks.
>
>
> --
> Best regards,
> Cheshkov Anton
> Phone: +7 909 005 18 82
> Skype: cheshkov_anton
> _______________________________________________
> web-devel mailing list
> web-devel@haskell.org
> http://www.haskell.org/mailman/listinfo/web-devel


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