Cakephp Model error - cakephp

Question

I am facing a strange problem while creating edit functionality in cakephp 2.1
Error genreated:
Illegal offset type [CORE\Cake\Model\Model.php, line 2689]
My edit.ctp file is
<?php echo $this->Form->create('Task');?>
<fieldset>
<legend>Edit Task</legend>
<?php
echo $this->Form->hidden('id');
echo $this->Form->input('title');
echo $this->Form->input('done');
?>
</fieldset>
<?php echo $this->Form->end('Save');?>
Model: Task.php
<?php
class Task extends AppModel {
var $name = 'Task';
}
?>
Controller :TasksController.php
<?php
class TasksController extends AppController {
var $name = 'Tasks';
var $helpers = array('Html', 'Form');
function index() {
$this->set('tasks', $this->Task->find('all'));
}
function add() {
if (!empty($this->data)) {
$this->Task->create();
if($this->Task->save($this->data)){
$this->Session->setFlash('The Task has been saved');
$this->redirect(array('action'=>'index'),null,true);
}else{
$this->Session->setFlash('Task not saved.Try again.');
}
}
}
function edit($id = null) {
if (!$id) {
$this->Session->setFlash('Invalid Task');
$this->redirect(array('action' => 'index'), null, true);
}
if (empty($this->data)) {
$this->data = $this->Task->find(array('id' => $id));
} else {
if ($this->Task->save($this->data)) {
$this->Session->setFlash('The Task has been saved');
$this->redirect(array('action' => 'index'), null, true);
} else {
$this->Session->setFlash('The Task could not be saved.Please, try again.');
}
}
}
}
?>

Answer 1

I think your find() method is erroneous:
$this->data = $this->Task->find(array('id' => $id));
change to
$this->data = $this->Task->find('all', array('conditions' => array('id' => $id)));
http://book.cakephp.org/2.0/en/models/retrieving-your-data.html

Answer 2

In order to prepopulate the data on the form you need to do the following:
<?php echo $this->Form->create('Task');?>
<fieldset>
<legend>Edit Task</legend>
<?php
echo $this->Form->hidden('id', array('value' => $this->data[0]['Task']['id']));
echo $this->Form->input('title', array('value' => $this->data[0]['Task']['title']));
echo $this->Form->input('done', array('value' => $this->data[0]['Task']['done']));
//var_dump($this->data[0]['Task']['id']);
?>
</fieldset>
<?php echo $this->Form->end('Save');?>
<?php echo $this->Html->link('List All Tasks', array('action'=>'index')); ?><br />
<?php echo $this->Html->link('Add Task', array('action'=>'add')); ?><br />
<?php echo $this->Html->link('List Done Tasks', array('action'=>'index')); ?><br />
<?php echo $this->Html->link('List Pending Tasks', array('action'=>'index')); ?><br />