In the model:
$this->find("first", array(
"conditions"=>array(
"OrderDetail.id"=>""
)
))));
Produces the following SQL where clause:
WHERE `OrderDetail`.`id` = NULL
That will never match any records (comparing anything directly with
NULL always results in NULL, ie. comparing anything with an unknown
will always produce an unknown answer)
The correct syntax should be:
WHERE `OrderDetail`.`id` IS NULL
Shouldn't CakePHP use IS NULL when building the where clause for NULL
values in comparisons?
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