cakephp – Cake PHP复杂查找’OR’与null和空字符串无法正常工

$conditions = array(
    'Person.id' => array(2,4,1,23,45,11),'OR' => array(
    array(
        array('NOT' => array('Person.image' => null)),array('NOT' => array('Person.image' => '')),),array(
        array('NOT' => array('Person.photos' => null)),array('NOT' => array('Person.photos' => '')),)
    )
);

相应的cake sql dump输出查询如下

SELECT `Person`.`id`,`Person`.`created`,`Person`.`modified` 
FROM `people` AS `Person` WHERE `Person`.`id` IN (2,11)  AND 
((((NOT (`Person`.`image` IS NULL)) AND (NOT (`Person`.`image` = NULL))))   OR 
(((NOT (`Person`.`photos` IS NULL)) AND (NOT (`Person`.`photos` = ''))))) 
ORDER BY FIELD(`Person`.`id`,2,11) ASC LIMIT 3

在蛋糕条件数组中,我给Person.image不为null或”,但相应的cake sql输出为(NOT(Person.image IS NULL))AND(NOT(Person.image = NULL))它应该像(NOT(Person.image IS NULL))AND(NOT(Person.image =”)).

这里Person.image都与NULL本身进行比较(IS NULL和= NULL),其中Person.image = NULL想与像Person.image =”这样的空字符串进行比较.

这里’Person.image’是’INT’而’Person.photos’是’VARCHAR’类型,但很难从当前阶段改变类型.

如何纠正？