> Ryan,
>
> You are completely right about the atomic operation. The below works
> well with a hard coded value, but I need to insert $quantity since
> that will vary based on the adjustment needed from an order or stock
> being added. I'm stuck with the code change into the literal value
> there.
>
> $this->updateAll(
> array('Venue.inventory' => 'Venue.inventory+$quantity'),
> array('Venue.id' => $id));
>
You need to use double quotes to have the var evaluated.
array('Venue.inventory' => "Venue.inventory + ${quantity}")
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