cakephp HABTM协会

Question

您好我在cakephp中开发了一个网站。 我有两张桌子： 成分 属性

表之间的关系是HasAndBelongsToMany（HABTM）。 这是我的模特：

class Ingredient extends AppModel {
    public $name = 'Ingredient';
    public $useTable = 'ingredients';
    public $belongsTo = 'User';

    public $hasAndBelongsToMany = array (
        'Property' => array (
            'className'             => 'Property',
            'joinTable'             => 'ingredients_properties',
            'foreignKey'            => 'ingredient_id',
            'associationForeignKey' => 'property_id',
            'unique'                => false
        )
    );

}

class Property extends AppModel{
        public $name = 'Property'; 
        public $useTable = 'properties';

}

在我的IngredientController中，我必须添加一个我在这种模式下尝试的新属性：

$this->Ingredient->Property->create();
                $this->Ingredient->Property->set('user_id',$this->Session->read('Auth.User.id'));
                $this->Ingredient->Property->set('ingredient_id',$ing['IngredientAlias']['ingredient_id']);
                if ($this->Ingredient->Property->save($this->request->data)){
                    $this->set('flash_element','success');
                    $this->Session->setFlash ('Ingrediente modificato con successo.');
                    $this->redirect(array('action'=>'edit',$alias));
                }
                else{
                    $this->set('flash_element','error');
                    $this->Session->setFlash('Errore di salvataggio activity');
                }

进入数据库插入一条新记录但是如果我想要那些成分之间的关​​系，在ingredients_properties（连接表）中插入记录，我该怎么做？在这种模式下，就像Ingredients hasMany Properties但不正确。 我该如何解决？ 或者我必须手动将记录创建为ingredients_properties？

Answer 1

您可以查看以下链接以实现相同目的：

http://book.cakephp.org/2.0/en/models/saving-your-data.html#saving-related-model-data-habtm

Answer 2

解决方案是：

class Ingredient extends AppModel {
    public $name = 'Ingredient';
    public $useTable = 'ingredients';
    public $belongsTo = 'User';

    public $hasAndBelongsToMany = array (
        'Property' => array (
            'className'             => 'Property',
            'joinTable'             => 'ingredients_properties',
            'foreignKey'            => 'ingredient_id',
            'associationForeignKey' => 'property_id',
            'unique'                => false
        )
    );

}

class Property extends AppModel{
        public $name = 'Property'; 
        public $useTable = 'properties';
        public $hasAndBelongsToMany = array (
        'Ingredient' => array (
            'className'             => 'Ingredient',
            'joinTable'             => 'ingredients_properties',
            'foreignKey'            => 'property_id',
            'associationForeignKey' => 'ingredient_id',
            'unique'                => false
        )
    );

}