CakePHP的2.X：在saveField（）使用变量

所以说我想只保存2与特定交易领域我的系统*基本上我从库存股票”CakePHP的2.X：在saveField（）使用变量

public function admin_take($id = null) { 
    if (!$this->Inventory->exists($id)) { 
     throw new NotFoundException(__('Invalid inventory item')); 
    } 
    if ($this->request->is(array('post', 'put'))) { 
     if ($this->request->data['Inventory']['amount_taken'] < $this->Inventory['Inventory']['amount']){ 
       amt = $this->request->data['Inventory']['amount_taken']; 
       $this->Inventory['Inventory']['amount'] = $this->Inventory['Inventory']['amount'] - amt; 
       $this->Inventory['Inventory']['amount_taken'] = $this->Inventory['Inventory']['amount_taken'] + amt; 
       $this->Inventory->saveField('amount_taken','x'); 
       $this->Inventory->saveField('amount','y'); 
       $this->Session->setFlash(__('The inventory item has been saved.')); 
       return $this->redirect(array('action' => 'index')); 
      } 
      else if ($this->request->data['Inventory']['amount_taken'] > $this->Inventory['Inventory']['amount']) { 
       $this->Session->setFlash(__('request could not be processed, not enough inventory stock to fulfil request .')); 
      } 
      else { 
       $this->Session->setFlash(__('The request could not be processed, please try again.')); 
      } 

     } 
    } 
    else { 
     $options = array('conditions' => array('Inventory.' . $this->Inventory->primaryKey => $id)); 
     $this->request->data = $this->Inventory->find('first', $options); 
    } 
}

是取出物品有可能用包含上面算术运算中更改数据的变量替换saveField中的x和Y吗？

大多数我看到的示例倾向于在saveField $ stringValue中使用实际字符串，如果我确实需要字符串？我会去用字符串替换这里？

来源

2014-11-24 Sean Perez

答案形式戴夫确实是正确的只是改变一下看看。 Cakephp已经完成了很多数据库操作，而且你的代码也有很多。

$this->Inventory->saveField('amount_taken','x'); 
$this->Inventory->saveField('amount','y');

是2操作。更好的是：

$this->Inventory->save(array('amount_taken' =>'x', 'amount' => 'y'));

或

$this->Inventory->set('amount_taken','x'); 
$this->Inventory->set('amount','y'); 
$this->Inventory->save();

来源

2014-11-24 20:15:38 Brett

Dave的答案是正确的，但我挑这也为要去回合专门只更新表中的字段了一把更有效的方式。谢谢先生 – 2014-11-28 17:45:24

是有可能替换x和Y与变量saveField 从上面的算术运算包含改变的数据？

它。试试吧，你会看到它的作品。

如何将我去与字符串替换吗？

步骤1）用您的算术运算替换'x'或'y'。这可以通过使用“复制”和“粘贴”快捷键轻松完成。（CTRL + C/Ctrl + P键在Windows上）

步骤2）庆祝！

来源

2014-11-24 17:29:24 Dave

CakePHP的2.X：在saveField（）使用变量

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