How to check if a collection exist ?

[Thibaut Barrère]

Hi,

I'm trying to detect if a collection exist before renaming it
(renaming an non existing collection raises Error renaming collection:
{"errmsg"=>"exception: source namespace does not exist",
"code"=>10026, "ok"=>0.0}).

I could not find a function to achieve this (through the Ruby driver
at least). Is it possible in some way ?

cheers,

-- Thibaut

[Kristina Chodorow]

You can query the system.namespaces collection of whichever db you're using.  Each collection in the db is listed there.

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[Thibaut Barrère]

Hi Kristina,

> You can query the system.namespaces collection of whichever db you're
> using.  Each collection in the db is listed there.

thanks, I hadn't thought about that.

best,

-- Thibaut