search filter in cake 1.3

[Chris]

hi guys,... can anyone help please,... I'm using cake 1.3
how can I filter search results by user firstname 

this is my form input: 

<?php echo $this->Form->create('User', array('action' => 'search')); ?>
<?php echo $this->Form->text('find', array('style' => 'width: 60px')) 
?> 
<?php echo $this->Form->end(__('Search', true)); ?> 

and this is my users_controller.php 


  function search() 
  {
       
$this->User->recursive = 0;
$params = $this->params['url']; 

                if (!array_key_exists("find", $params)) { 

                        $this->set('users', $this->paginate()); 
                } 
                else 
{ 
$this->set('users', $this->paginate(array("User.firstname LIKE 
'{$params['find']}%'"))); 
} 

  } 

thanks in advance 
chris

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