zend-framework - 如何在Zend Framework中定义关系

Question

我有两个简单的表:Projects和SubProjects，我要在表中打印每个子项目以及相应的项目。

所以我这样写:

class Admin_Model_Projects extends Zend_Db_Table_Abstract
{
    protected $_name = 'main_projects';
    protected $_primary = 'mai_id';
    protected $_sequence = true;
    protected $_dependentTables = array('Admin_Model_SubProjects');
    ....

和这个:

class Admin_Model_SubProjects extends Zend_Db_Table_Abstract
{
    protected $_name = 'sub_projects';
    protected $_primary = 'sub_id';
    protected $_sequence = true;
    protected $_referenceMap = array(
        'columns' => 'mai_id',
        'refTableClass' => 'Admin_Model_Projects',
        'refColumns' => 'mai_id'
    );
    .....

我想知道为什么当我键入 No reference from table Admin_Model_SubProjects to table Admin_Model_Projects时得到 <?php echo $entry->findParentRow('Admin_Model_Projects'); ?>

Answer 1

看起来您在referenceMap定义中缺少规则名称。
它应该是

protected $_referenceMap = array(
    'Project' => array(
        'columns' => 'mai_id',
        'refTableClass' => 'Admin_Model_Projects',
        'refColumns' => 'mai_id'
    )
);