[Sputnik-list] LuaSQL Versium Plugin

[Yuri Takhteyev]

 (Whoops, sent from the wrong address, so it will bounce.  Resending.)

 Nice!  I got it running with Xavante myself and wrote up step-by-step
 instructions at http://sputnik.freewisdom.org/en/SQL_Storage in case
 someone else wants to try.

 The somewhat unfortunate thing is that there is no rock for luasql, so
 you have to use the Kepler installer and set --with-optional=luasql.
 I'll beg for a rock on the Kepler list.

 Will this is licensed under MIT/X?

 A comment on the code:

    function LuaSQLVersiumStorage:get_node_history(id, prefix)
        ...
        -- TODO: This doesn't return the raw representation at the moment
        return history
    end

 I take responsibility for failing to provide a clear spec and sending
 you and Sérgio to reverse engineer simple.lua... get_node_history()
 does not _need_ to return the raw representation (which would be
 implementation specific anyway and of no use to versium).
 get_node_history() in simple.lua returns raw_representation as a
 second parameter only so that it this function could be re-used when
 saving the node.  In retrospect, that probably wasn't a good idea,
 from the readability point of view.  I'll change it to two functions:
 get_node_history() which would return just the history and local
 _get_node_history_with_raw_representation().


 >  In theory this _should_ work with any of the LuaSQL drivers as long as
 >  you specify the right driver and connection parameters.  Simply
 >  install the correct rock from the CVS repository, and go go go!  I've
 >  noticed quite a speed increase using even the unoptimized MySQL.

 Which CVS repository?  They have a LuaSQL rock in CVS but not in the
 luarocks repository?

 - yuri

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