如何将Magento sql查询显示为字符串？

Question

Magento构造它的SQL查询,如

 $this->getSelect()->joinInner(
        array('sbao' => $this->getTable('sales/billing_agreement_order')),
        'main_table.entity_id = sbao.order_id',
        array()
    )

有没有办法以字符串格式显示结果查询,而不是打印出巨大的对象,例如

echo $this->getSelect()->joinInner(
        array('sbao' => $this->getTable('sales/billing_agreement_order')),
        'main_table.entity_id = sbao.order_id',
        array()
    )->toString();

Answer 1

$select = $this->getSelect()->joinInner(
        array('sbao' => $this->getTable('sales/billing_agreement_order')),
        'main_table.entity_id = sbao.order_id',
        array()
    );

echo $select;

Answer 2

我几乎为有兴趣的人准备了它-> __ toString（）例如

echo $this->getSelect()->joinInner(
    array('sbao' => $this->getTable('sales/billing_agreement_order')),
    'main_table.entity_id = sbao.order_id',
    array()
)->__toString()