CakePHP：使用contain

Question

我正在阅读CakePHP文档，但不确定是否需要使用find以外的其他方法。示例：

在我的控制器中，我想提供Orders的过滤列表，其中相关表state的{​​{1}}字段为“ Open”：

OrderStates

但它表示找不到列$orders = $this->ItemsDeliveryNotes->Orders->find('list', [ 'limit' => 200, 'conditions' => ['Orders.order_state.state' => 'Open'], 'contain' => ['OrderStates'] ]); 。 这里的表order_state的定义：

创造

Orders

实体

CREATE TABLE orders (
    id int(11) NOT NULL AUTO_INCREMENT,
    customer_id int(11),
    orderNumber varchar(255) NOT NULL,
    orderDate date,
    order_state_id int(11),
    PRIMARY KEY (id),
    KEY order_state_id (order_state_id),
    CONSTRAINT orders_ibfk_1 FOREIGN KEY (customer_id) REFERENCES customers (id) ON DELETE NO ACTION ON UPDATE NO ACTION,
    CONSTRAINT orders_ibfk_2 FOREIGN KEY (order_state_id) REFERENCES order_states (id) ON DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1;

表

class Order extends Entity
{
    protected $_accessible = [
        'orderNumber' => true,
        'orderDate' => true,
        'customer_id' => true,
        'order_state_id' => true,
        'customer' => true,
        'order_state' => true,
        'items' => true
    ];
}

和public function initialize(array $config) { parent::initialize($config); $this->setTable('orders'); $this->setDisplayField('orderNumber'); $this->setPrimaryKey('id'); $this->belongsTo('Customers', [ 'foreignKey' => 'customer_id' ]); $this->belongsTo('OrderStates', [ 'foreignKey' => 'order_state_id' ]); $this->hasMany('Items', [ 'foreignKey' => 'order_id' ]); } public function buildRules(RulesChecker $rules) { $rules->add($rules->existsIn(['order_state_id'], 'OrderStates')); $rules->add($rules->existsIn(['customer_id'], 'Customers')); return $rules; } ：

创造

OrderStates

实体

CREATE TABLE order_states (
 id int(11) NOT NULL AUTO_INCREMENT,
 state varchar(255) NOT NULL,
 badge varchar(255) DEFAULT NULL,
 PRIMARY KEY (id)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8

表

class OrderState extends Entity
{
    protected $_accessible = [
        'state' => true,
        'badge' => true
    ];
}

在public function initialize(array $config) { parent::initialize($config); $this->setTable('order_states'); $this->setDisplayField('state'); $this->setPrimaryKey('id'); } 中可以访问列order_state，并且我还将相关表（Orders）添加到了OrderStates选项中。我还想念什么？

Answer 1

@在您所包含实体的条件中标记问题。请确定您使用的是哪个Cakephp版本。

下面是使用contained table条件的示例

传递要包含的条件

// Prior to 3.5.0 you would use contain(['Comments' => function () { ... }])

$query = $articles->find()->contain('Comments', function (Query $q) {
    return $q
        ->select(['body', 'author_id'])
        ->where(['Comments.approved' => true]);
});

注意：确保已将use Cake\ORM\Query;包括在“名称空间”部分。

有关更多详细信息，请参阅此处的文档。 https://book.cakephp.org/3.0/en/orm/retrieving-data-and-resultsets.html#passing-conditions-to-contain

对于您的情况，可能是这样的。

$orders = $this->ItemsDeliveryNotes->Orders->find('list', [ 'limit' => 200 ])->contain('OrderStates', function (Query $q) { return $q->where(['state' => 'Open']); });

Answer 2

以下是可使用的语法：

$orders = $this->ItemsDeliveryNotes->Orders->find('list', [ 'limit' => 200 ])
    ->contain('OrderStates')->where(['state' => 'Open']);