Ruby on Rails

On Jan 29, 6:06 pm, tom <tomabr...@gmail.com> wrote:
> ok, that makes sense. but where is that variable being 'declared' and or
> set?

Somewhere early in the Rails initialization process (There's probably
a module called Rails - as soon as the file containing it is loaded it
will spring into existence)

Fred

> tia
>
> On Sat, Jan 29, 2011 at 12:10 PM, Frederick Cheung <
>
>
>

> frederick.che...@gmail.com> wrote:
>
> > On Jan 29, 3:47 pm, tom <tomabr...@gmail.com> wrote:
> > > hi,
>
> > > i see the line
>
> > > if defined?(Rails)
>
> > > more and more in gems and other require statements. right now im
> > > looking at a gem and the line
> > > if defined?(Rails)
>
> > > is being called prior the first constructor of a class. this seems to
> > > be kinda related to autoload rails things, but im not sure.
> > > what is it? if someone could shed some light on it. thx
>
> > It's checking whether Rails is defined. Typically you might do this if
> > your gem/plugin had some rails features that you don't want to load
> > (or can't be loaded) if your gem is being used in a non Rails context
>
> > Fred
>
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