CakePHP3.X $ query-＆gt; hydrate（false）对我的代码不起作用

Question

我正在使用tableRegistry :: get（）并返回查询对象。我只想要在CakePHP2.X版本中通过find（）函数返回的表的数据。为此我需要使用＆＃34; hydrate＆＃34;正如我在其中一个建议中所读到的那样。这是我的代码：

public function beforeFilter(Event $event){
    $this->maincategories();
}

function maincategories(){
    $postcategories = TableRegistry::get('Postcategories',[
            'className' => 'App\Model\Table\PostcategoriesTable', 
            'table' => 'postcategories'
    ]);

    $query = $postcategories->find('all',['fields'=>[
                'Postcategory.id',      
                'Postcategory.name'
    ], 'contain' => ['']])->hydrate(false)->toArray();

    pr($query);exit;
}

此代码仍然给我错误＆＃34; Postcategories与＆＃34;

无关

Answer 1

删除空包含

$query = $postcategories->find('all')
    ->select(['Postcategory.id', 'Postcategory.name'])
    ->hydrate(false)
    ->toArray();

Answer 2

我使用“线程”查找查询
排列     （     [0] =＆gt;排列         （             [id] =＆gt; 1             [parent_id] =＆gt;             [name] =＆gt; Web开发             [有效] =＆gt; 1             [lft] =＆gt; 1             [rght] =＆gt; 6             [created] =＆gt; Cake \ I18n \ Time Object                 （                     [date] =＆gt; 2015-02-10 14：11：19.000000                     [timezone_type] =＆gt; 3                     [timezone] =＆gt;世界标准时间                 ）

        [modified] => Cake\I18n\Time Object
            (
                [date] => 2015-02-10 14:11:19.000000
                [timezone_type] => 3
                [timezone] => UTC
            )

        [children] => Array
            (
                [0] => Array
                    (
                        [id] => 2
                        [parent_id] => 1
                        [name] => Open Source
                        [active] => 1
                        [lft] => 2
                        [rght] => 5
                        [created] => Cake\I18n\Time Object
                            (
                                [date] => 2015-02-10 14:11:54.000000
                                [timezone_type] => 3
                                [timezone] => UTC
                            )

                        [modified] => Cake\I18n\Time Object
                            (
                                [date] => 2015-02-10 14:11:54.000000
                                [timezone_type] => 3
                                [timezone] => UTC
                            )

                        [children] => Array
                            (
                                [0] => Array
                                    (
                                        [id] => 3
                                        [parent_id] => 2
                                        [name] => PHP
                                        [active] => 1
                                        [lft] => 3
                                        [rght] => 4
                                        [created] => Cake\I18n\Time Object
                                            (
                                                [date] => 2015-02-10 15:57:11.000000
                                                [timezone_type] => 3
                                                [timezone] => UTC
                                            )

                                        [modified] => Cake\I18n\Time Object
                                            (
                                                [date] => 2015-02-10 15:57:11.000000
                                                [timezone_type] => 3
                                                [timezone] => UTC
                                            )

                                        [children] => Array
                                            (
                                            )

                                    )

                            )

                    )

            )

    )

[1] => Array
    (
        [id] => 4
        [parent_id] => 
        [name] => Technology
        [active] => 1
        [lft] => 7
        [rght] => 8
        [created] => Cake\I18n\Time Object
            (
                [date] => 2015-02-11 11:26:22.000000
                [timezone_type] => 3
                [timezone] => UTC
            )

        [modified] => Cake\I18n\Time Object
            (
                [date] => 2015-02-11 11:26:22.000000
                [timezone_type] => 3
                [timezone] => UTC
            )

        [children] => Array
            (
            )

    )

[2] => Array
    (
        [id] => 5
        [parent_id] => 
        [name] => Frameworks
        [active] => 1
        [lft] => 9
        [rght] => 10
        [created] => Cake\I18n\Time Object
            (
                [date] => 2015-06-19 16:24:24.000000
                [timezone_type] => 3
                [timezone] => UTC
            )

        [modified] => Cake\I18n\Time Object
            (
                [date] => 2015-06-19 16:24:24.000000
                [timezone_type] => 3
                [timezone] => UTC
            )

        [children] => Array
            (
            )

    )

）