Question

如何在admin_edit.ctp

中的选择框中选择父类别

分类表结构

ID Name ParentID
1  Parent1  0
2  Parent2  0
3  Child1   1
4  Child2   1
5  Child3   2
6  Child4   1

Category.php（模型）

 var $belongsTo = array(
        'ParentGroup' => 
            array('className' => 'Category', 
                  'foreignKey' => 'parent_id' 
        ), 
     ); 


   var $hasMany = array( 
    'ChildGroup' => 
            array('className' => 'Category', 
                  'foreignKey' => 'parent_id' 
            ), 
    );

admin_edit.ctp

<?php echo $this->Form->create('Category'); ?>
<?php echo $this->Form->input("id" ,array('type' => 'hidden', 'label' => false,'div' => false))?>
<?php echo $this->Form->input("parent_id" ,array('label' => false,'div' => false,'class'=>"text-field" ))?>
<?php echo $this->Form->input("category" ,array('label' => false,'div' => false,'class'=>"text-field" ))?>
<?php echo $this->Form->end('edit'); ?>

注意显示在parent_id选择框中的数据

Answer 1

//Controller
$categories = $this->Category->find('list', array('conditions'=>array(all your conditions)));
$this->set('categories', $categories);

//View    
$this->Form->input('category_id');
//you can set the type if it doen't work
$this->Form->input('category_id', array('type'=>''));

Form Helper

你把父母，孩子的关联放在一个模型中，

belongs_to必须在子模型

中

父模型和has_many应该进入父

//Category Model
     var $belongsTo = array(
            'ChildGroup' => 
                array('className' => 'ChildGroup', 
                      'foreignKey' => 'parent_id' 
            ), 
         ); 

//Child Model    
       var $hasMany = array( 
        'ParentGroup' => 
                array('className' => 'ParentGroup', 
                      'foreignKey' => 'parent_id' 
                ), 
        );

如果您的表名与您的模型名称http://book.cakephp.org/2.0/en/models.html

不同，请阅读此文章以获取模型关联http://book.cakephp.org/2.0/en/models.html和usetable

如何在admin_edit.ctp的选择框中选择父类别

1 个答案: