Model.uncached do
Model.do.work
end
On Mon, Feb 18, 2013 at 3:27 PM, javinto <jan.javi...@gmail.com> wrote:
> In part of my application I'm using dynamic tables. I'm aware of the single
> thread conditions. I've tackled some caveats yet - will post a blog about it
> soon - but there's one I need help with.
>
> Consider 2 models that are associated: Order and OrderLine where Order has
> many order_lines.
>
> Now we set the table names for them:
> Order.table_name='v1_orders'
> OrderLine.table_name='v1_order_lines'
>
> Query:
> OrderLine.joins(:order).where(Order.table_name=>{:customer_id=>1}).all
> Result: Select v1_order_lines.* FROM v1_order_lines INNER JOIN v1_orders ON
> v1_orders.id=v1_order_lines.order_id WHERE v1_orders.customer_id=1
>
> So far so good
>
> Now we alter the table names:
> Order.table_name='v2_orders'
> OrderLine.table_name='v2_order_lines'
>
> and requery:
>
> Query:
> OrderLine.joins(:order).where(Order.table_name=>{:customer_id=>1}).all
> Result: Select v2_order_lines.* FROM v2_order_lines INNER JOIN v1_orders ON
> v1_orders.id=v2_order_lines.order_id WHERE v2_orders.customer_id=1
>
> Notice the INNER JOIN, it still uses the v1_ prefixes!!
>
> I looks like if there has been some association caching. How can I get rid
> of it?
>
> I tried: ActiveRecord::Base.connection.schema_cache.clear! but without the
> right effect.
>
>
> Thanks
>
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