Hello,

Have you got any tests for the same?

Thanks.

Anuj


On 5 May 2011 02:32, Ketan Padegaonkar <[email protected]> wrote:

> Hey,
>
> We hit a bug today because Arel::Visitors::ToSql is not threadsafe.
> Here is what is happening:
>
> Arel::Visitors::ENGINE_VISITORS is a cache of visitors instances.
> These instances are not inherently threadsafe because it contains
> state '@last_column', '@connection' that is shared between threads.
>
> The other variables '@pool', '@quoted_tables' and '@quoted_columns'
> seem just fine. I'd like to propose a patch
> (
> https://github.com/ketan/arel/commit/52dc69f5bebebb75b7b3d7bd42e839f2db54b88a
> )
> that fixes this using ruby's threadlocal for the last_column and
> connection instance variables. Would be great if this was pulled into
> master.
>
> Any other thoughts or other recommendations on approaching this?
>
> -- Ketan
> studios.thoughtworks.com
>
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-- 
Anuj DUTTA

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