On Oct 12, 11:38 pm, "Greg Hauptmann" <[EMAIL PROTECTED]>
wrote:
> how is it obvious to your Frederick can I ask - how would you know these
> methods will end up where they do - I'm guessing (but might be wrong) you
> would have to look through Rails code to find out how it uses/mixes in the
> methods as the framework instantiates itself. If I'm correct here this
> would be normal its not obvious to see how you would call the method...
> Am I on the right track here?
>
I suppose there is some prior knowledge or a bit of experimentation to
know that connection adapters are split up into those various
modules.
Fred
> On Sun, Oct 12, 2008 at 7:59 PM, Frederick Cheung <
>
> [EMAIL PROTECTED]> wrote:
>
> > On Oct 12, 7:09 am, "Greg Hauptmann" <[EMAIL PROTECTED]>
> > wrote:
> > > Hi,
> > > I'm curious. If you saw the Rails "select_all(sql, name = nil)" method
> > > (rerferhttp://
> > api.rubyonrails.org/classes/ActiveRecord/ConnectionAdapters/Da...),
> > > and wanted to use it, how would you really know how to use it and call
> > > it
> > > from this API doco?
>
> > > I know from googling that you can call it from within a model by going
> > > "ActiveRecord::Base.connection.select_all(sql_string)", but how would I
> > have
> > > worked this out from the API doco.
>
> > That's just me, but it seems kind of obvious to me. The second
> > parameter is a bit more mysterious but if it has a default value
> > chances are you can just ignore it. the fact that the first parameter
> > is called sql strongly implies that you should give it some sql.
>
> > Fred
>
> > > Within the API page for the method it
> > > says it's within Module
>
> > > "ActiveRecord::ConnectionAdapters::DatabaseStatements".
>
> > > Thanks
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