CakePHP: how to get recently created auto-incremented field

I have a user submit a field to the database, it 开发者_StackOverflowvalidates, and makes the entry. The primary key of this new row is auto-incremented.

The user then gets to another form where that newly created field is required.

Can anyone shed any light on this problem?

Thanks in advance!

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Check out Model::getInsertID();

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$this->getLastInsertID();

cakephp model docs

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// Save the first form    
$this->Ingredient->save($newData);
// Get the id of the record just saved
$newIngredientId = $this->Ingredient->id;
// Redirect to a new form
$this->redirect(array(
  'controller' => 'dish',
  'action' => 'add',
  '?' => array('lastId' => $newIngredientId)
));

http://book.cakephp.org/view/1031/Saving-Your-Data, http://book.cakephp.org/view/1442/link

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If it's in the database, when you get to your next form just read it out again in your controller and set it to a view variable.

$this->set('lastid', $this->Model->read(null,$id));

Or if you need to search the database for the field use find

$this->set('lastid', $this->Model->find('first', array('conditions'=>array('username'=>'MyUserName')) , array('id')));

You could go around it by using mysql_insert_id()