[Haskell-cafe] Re: databases in Haskell & type-safety

Xie Hanjian jan.h.xie at gmail.com
Wed Jan 14 00:16:50 EST 2009

* John Goerzen <jgoerzen at complete.org> [2009-01-13 20:53:40 -0600]:

> Xie Hanjian wrote:
> > * John Goerzen <jgoerzen at complete.org> [2009-01-13 12:37:45 -0600]:
> > 
> > Redmine requires only ruby 1.8.6 and rails 2.1.2, which are both stable
> > releases, so I think an upgrade of your ruby stack is very reasonable.
> It also requires a newer version of rake than is in Debian.  Not a
> problem as such, but you start working with gem install commands (and
> their friends), and eventually find that after spending 30 minutes
> installing/upgrading stuff, it bombs at the very end saying that some
> component needed a newer version of something than is available, and it
> can't install that component, so it's left the server hosed -- too new
> to run the old version, not ready to accept the new.  Great.
> It ought to have checked the dependencies *before* messing with my
> system.  And it ought not to have failed mysteriously anyhow.
> >> To anyone annoyed with Haskell's library install process: you have no
> >> idea how good you have it unless you've tried Ruby and rails.
> > 
> > Disagree. Rubygems is fairly easy to use. At lease, I can guess how to
> It is completely poorly documented on how to gem install something when
> you don't have root.  The gem(1) manpage is a joke.  The online help
> doesn't help much either.   Turns out there is a magic combination of
> undocumented environment variables and documented command-line options
> that does it.  Or at least, I *thought* it does it.
> The other problem about Rails is that code and data are inseparably
> mixed.  It will be just about impossible to install a rails app as a
> Debian package because it needs write access to its install directory,
> and this stuff is not easily configured to use /usr and /etc as appropriate.

From your description it seems debian's rails stack mess you up, not
ruby/rails itself. And I think install a rails app as a debian package
is not a good idea.

> Anyhow, this is a Haskell list, so I'm not going to rant any more about
> this here.  I can give you details off-list if you like.  It's touched a

ok :-|


> nerve lately.
> -- John
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