CakePHP 3.6 Query Builder 复杂的 OR 条件问题

Question

我正在尝试使用具有复杂嵌套 AND 和 OR 条件的查询生成器来构建查询。这是我到目前为止所写的内容。

$cond_arr = array();
$cond_arr['VehicleBrandModels.status'] = 1;
$query = $this->VehicleBrandModels->find();
$query->hydrate(false);
$query->select($this->VehicleBrandModels);
$query->where($cond_arr);
$VBM_data = $query->toArray();

这将生成如下查询

SELECT * FROM vehicle_brand_models WHERE status = 1;

我想生成一个带有嵌套 AND & OR 条件的查询，如下所示

SELECT * FROM vehicle_brand_models WHERE status = 1 AND ((overall_rating > 0 AND overall_rating < 2) OR (overall_rating >= 2 AND overall_rating < 4) OR (overall_rating >= 4 AND overall_rating <= 5));

谁能帮助解决如何在 CAKEPHP 3.0 Query builder 中实现这一点？

Answer 1

最简单的解决方案如下

$cond_arr = [
    'VehicleBrandModels.status' => 1, 
    'OR' => [
        ['overall_rating >' =>  0, 'overall_rating <' => 2],
        ['overall_rating >=' => 2, 'overall_rating <' => 4],              
        ['overall_rating >=' => 4, 'overall_rating <=' => 5]
    ]
];

还有一个更“蛋糕”的方式，如果我有时间我会发布它。

但请注意，根据我看到的所有 OR 条件重叠，您可以简单地做

 $cond_arr = [
    'VehicleBrandModels.status' => 1, 
    'overall_rating >' =>  0, 
    'overall_rating <=' => 5
];

编辑：这里首先介绍的是使用查询表达式的更简单的方式

$query->where(function($exp, $q) {
    $exp = $exp->eq('VehicleBrandModels.status', 1);
    $conditions1 = $exp->and_([])
        ->gt('overall_rating ', 0)
        ->lte('overall_rating ', 2);
    $conditions2 = $exp->and_([])
        ->gt('overall_rating ', 2)
        ->lte('overall_rating ', 4);
    $conditions3 = $exp->and_([])
        ->gt('overall_rating ', 4)
        ->lte('overall_rating ', 5);
    $orConditions = $exp->or_([$conditions1, $conditions2, $conditions3]);
    $exp->add($orConditions);
    return $exp;
});

仍有一些条件重叠