CakePHP：HABTM和遞歸屬性獲取所有相關數據

Question

我在模型中遇到了HABTM關係的問題。我在這個網站上搜索了很多例子和參考資料，並且在幾個星期內沒有成功。該類文章文章HABTM標籤官方文檔效果很好，但外推到我的模型失敗。發現的所有信息不包含複合主鍵的實例或引用（我懷疑是因爲複合主鍵的關係將無法正常工作，我不能老是改變這種模式）

我的目標是讓關係：

Customer HABTM Products. 

所以，用

$客戶= $這個 - >客戶 - >找到（ '所有'）;

獲取客戶對象中與客戶相關的所有產品的數組。

目前我不能得到這個工作：$客戶沒有spected 產品陣列。

我感謝任何幫助或引用來幫助我解決這個問題。

這是我的分貝：

CREATE TABLE `customers` (
    `id` int(11) NOT NULL AUTO_INCREMENT, 
    `lang` varchar(2) NOT NULL, 
    `name` varchar(145) NOT NULL, 
    `logo` varchar(145) NOT NULL, 
    `description` text, 
    PRIMARY KEY (`id`,`lang`) 
) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8 

CREATE TABLE `products` (
    `id` int(11) NOT NULL AUTO_INCREMENT, 
    `lang` varchar(2) NOT NULL, 
    `category_id` int(11) NOT NULL, 
    `service_id` int(11) NOT NULL, 
    `description` text, 
    `picture` varchar(145) NOT NULL, 
    PRIMARY KEY (`id`,`category_id`,`service_id`,`lang`), 
    KEY `fk_products_services1` (`service_id`,`lang`), 
    KEY `fk_products_categories1` (`category_id`,`lang`), 
    CONSTRAINT `fk_products_categories1` FOREIGN KEY (`category_id`, `lang`) REFERENCES `categories` (`id`, `lang`) ON DELETE NO ACTION ON UPDATE NO ACTION, 
    CONSTRAINT `fk_products_services1` FOREIGN KEY (`service_id`, `lang`) REFERENCES `services` (`id`, `lang`) ON DELETE NO ACTION ON UPDATE NO ACTION 
) ENGINE=InnoDB AUTO_INCREMENT=29 DEFAULT CHARSET=utf8 


CREATE TABLE `customer_products` (
    `id` int(11) NOT NULL AUTO_INCREMENT, 
    `customer_id` int(11) NOT NULL, 
    `product_id` int(11) NOT NULL, 
    PRIMARY KEY (`id`,`customer_id`,`product_id`), 
    KEY `fk_customer_products_products1` (`product_id`), 
    KEY `fk_customer_products_customers` (`customer_id`), 
    CONSTRAINT `fk_customer_products_customers` FOREIGN KEY (`customer_id`) REFERENCES `customers` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION, 
    CONSTRAINT `fk_customer_products_products1` FOREIGN KEY (`product_id`) REFERENCES `products` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION 
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8 

這是我的客戶模型：

<?php 
App::uses('AppModel', 'Model'); 
/** 
* Customer Model 
* 
* @property CustomerProduct $CustomerProduct 
* @property Product $AllProducts 
*/ 
class Customer extends AppModel { 
/** 
* Display field 
* 
* @var string 
*/ 
    public $displayField = 'name'; 

    //The Associations below have been created with all possible keys, those that are not needed can be removed 


/** 
* hasAndBelongsToMany associations 
* 
* @var array 
*/ 
    public $hasAndBelongsToMany = array(
     'Products' => array(
      'className' => 'Product', 
      'joinTable' => 'customer_products', 
      'foreignKey' => 'customer_id', 
      'associationForeignKey' => 'product_id', 
      'unique' => true, 
      'conditions' => '', 
      'fields' => '', 
      'order' => '', 
      'limit' => '', 
      'offset' => '', 
      'finderQuery' => '', 
      'deleteQuery' => '', 
      'insertQuery' => '' 
     ) 
    ); 

} 

這是我的索引客戶控制器的方法：

public function index() { 
    $this->layout = 'header_chico'; 
    $this->Customer->recursive = 0; 
    $customers = $this->Customer->find('all'); 
    $this->set('customers', $customers); 
} 

Answer 1

您的HABTM表應該是customers_products（不是customer_products）。這可能會解決它。請記住，格式是按字母順序排列的複數形式。所以如果它是客戶HABTM產品，它就是customers_products。如果它是用戶HABTM產品，它將是products_users。

UPDATE

如果你想在HABTM記錄出現在索引中，你還需要刪除：

$this->Customer->recursive = 0; 

這將防止出現相關記錄。