Cannot refresh row as parent is missing. Zend Framework

i am getting the error "Cannot refresh row as parent is missing" when I try to save. Here is my code

abstract class Webapp_Model_Resource_Db_Table_Abstract
extends Zend_Db_Table_Abstract
{
    /**
     * Save a row to the database
     *
     *
     * @param array             $info The data to insert/update
     * @param Zend_DB_Table_Row $row Optional The row to use
     * @return mixed The primary key
     */

    public function saveRow($info, $row = null)
    {         
        if (null === $row) {
            $row = $this->createRow();
        }
        $columns = $this->info('cols');
        foreach ($columns as $column) {
            if (array_key_exists($column, $info)) {
                $row->$column = $info[$column];
            }
        }

        return $row->save();
    }
}

when I call the saveRow() method, I pass in the $_POST values ($form->getValues())

I have reused this class with my other modules in the same application but now I am getting this error and I am not sure why. My table is pretty straight forward:

CREATE TABLE `news` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `headline` varchar(100) DEFAULT NULL,
  `snippet` varchar(500) DEFAULT NULL,
  `full_text` text,
  `author` varchar(100) DEFAULT NULL,
  `publish_from` date DEFAULT NULL COMMENT 'Publish date',
  `publish_to` date DEFAULT NULL COMMENT 'Take it down or mark as draft after this date',
  `datecreated` timestamp NULL DEFAULT NULL COMMENT 'First created on',
  `revised` timestamp NULL DEFAULT CURRENT_TIMESTAMP COMMENT 'Timestamp for the last time it was revised',
  `draft` tinyint(1) DEFAULT '0' COMMENT 'Should not be published',
  `departments_id` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=214 DEFAULT CHARSET=utf8 COMMENT='Stores news articles';

Anyone know what I am doing wrong?

::::::::::::::ADDTION::::::::::开发者_如何学Python:::

public function saveNews($post,$defaults = array())
    {

       //get the form
        $form = $this->getForm('article' . ucfirst($validator));
        //validate
        if(!$form->isValid($post)) {
            return false;
        }


      //get fitered values
        $data = $form->getValues();
        //apply defaults
        foreach($defaults as $col => $value) {
            $data[$col] = $value;
        }

      //get the article if it exists
        $article = array_key_exists('id', $data) ?
                   $this->getNewsById($data['id']) : null;


        return $this->saveRow($data, $article);
}

When you pass an empty value for the primary key, Zend seems to return this value instead of the inserted auto-increment value - even though a new row is created properly with an auto-increment value, the inserted value will not be returned.

Maybe your problem is related to this. If so, try unsetting the id field prior to saving.

You have to tell DbTable that there is a Auto Incrementing Primary Key by setting $_sequence either to true or the Sequence Name.

15.5.4.1. Using a Table with an Auto-incrementing Key

Check your $info array. Probably you have some empty value for your primary key there. So array_key_exists($column, $info) returns true and you assign an empty primary key to your row. And this causes the error as the row with this key does not exist.

try

if (array_key_exists($column, $info) and $column != 'YOUR_PRIMARY_KEY_NAME') 
{
       $row->$column = $info[$column];
}

In my case the problem was missing AUTO_INCREMENT.

Could you post the function:

$this->getNewsById($id)

There is your problem...