Just an idea.

What happens if you use the ? Notation?

:conditions=["firstPeer = ? or secondPeer = ?",  
@chatter.I'd,@chatter.id]

Or use ["[firstPeer] = ? or [secondPeer] = ?]", ...

Also, the convention is to have underscores rather than camel case.  
Going against that conventions is making things difficult. You may  
want to just change it. Wonder if there is an override in active  
record for column names. Most databases are column name case  
insensitive. Apparently postgres cares.

Please post your findings and best of luck

Keenan

On Feb 22, 2009, at 2:30 PM, felix <[email protected]> wrote:

>
> Hi Heroku people!
>
> I started trying out Heroku today and was really impressed and
> relieved after struggling many days with a hopeless fcgi deployment
> scenario on a big but Rails-unfriendly hosting company. I only wished
> I had discovered Heroku earlier and saved myself many late nights of
> swearing and desperation.
>
> But... Although everything seemed to work 95% perfectly on the first
> try, I'm getting some bizarre errors, and I'm hoping there are people
> out there with some suggestions, because I'm pretty perplexed.
>
> So this is what I get in my log:
>
> ActiveRecord::StatementInvalid (PGError: ERROR:  column "firstpeer"
> does not exist
> LINE 1: SELECT * FROM "switches" WHERE (firstPeer = 15 OR
> secondPeer...
>                                        ^
> : SELECT * FROM "switches" WHERE (firstPeer = 15 OR secondPeer =
> 15) ):
>
> AR is complaining that there is no column "firstpeer". I'm not sure if
> the fact that it is all lower case has any significance. The actual
> column is named "firstPeer", as visible in the SQL log lines.
>
> The source line that gives rise to this error is located in
> Application.rb, and looks like this:
>
> switches = Switch.all(:conditions => ['firstPeer = :myID OR secondPeer
> = :myID' , {:myID => @chatter.id}])
>
> Nevertheless, the following line in another script (in initializers)
> does get executed w/o problems:
>
> switch = Switch.create(:firstPeer => chatter.id , :secondPeer =>
> peer.id, :distance => dist)
>
> and executing "heroku console Switch.all", I get: [#<Switch id: 1,
> firstPeer: 1, secondPeer: 2, created_at: "2009-02-22 17:11:26",
> updated_at: "2009-02-22 17:11:26", distance: 1235986.83901638>, " etc
>
> Being rather new to Rails and completely new to Heroku, I have
> absolutely no idea what might be going on.
>
> I develop using MySQL locally, and used that for my former deployment
> (which sucked but never threw this error at me) but mysql/posrgre
> issues could hardly have anything to do with this.
>
> My app forks off processes using the Spawn plugin, some running for a
> few secs, and some for as long as the main thread (at least that's the
> intention). All of this *seems* to work fine, although the error I've
> just described makes it hard to check this thoroughly. Could spawning
> processes (basically the same as a unix fork) cause any troubles?
>
> I would be *very* grateful for any (quick) comments and suggestions,
> as I'm really eager to get my app to work on Heroku.
>
> /F
> >

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