CakePHP Add,Edit,Delete and Validate

CakePHP Add,Edit,Delete and Validate

Create Database Table
CREATE TABLE `categories` (
  `id` INTEGER(11) NOT NULL AUTO_INCREMENT,
  `name` VARCHAR(255) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=MyISAM

Crate Model app\models\category.php

<?php
class Category extends AppModel {
    var $name = 'Category';
 var $validate = array( //validate
        'name' => array(
            'rule' => 'notEmpty',
            'message' => 'No, no, this field must not be empty!'
        )
    );
}
?>

Create Controller app/controllers/categories_controller.php

<?php
class CategoriesController extends AppController {
 
    var $name = 'Categories';
 
    function index() {
        $this->set('categories', $this->Category->find('all'));
    }
     
    function add() {
        if (!empty($this->data)) {
            if ($this->Category->save($this->data)) {
                $this->Session->setFlash('Your category has been saved.');
                $this->redirect(array('action' => 'index'));
            }
        }
    }
 function delete($id) {
        $this->Category->delete($id);
        $this->Session->setFlash('The category with id: '.$id.' has been deleted.');
        $this->redirect(array('action'=>'index'));
    }
 function edit($id = null) {
        $this->Category->id = $id;
        if (empty($this->data)) {
            $this->data = $this->Category->read();
        } else {
            if ($this->Category->save($this->data)) {
                $this->Session->setFlash('Your category has been updated.');
                $this->redirect(array('action' => 'index'));
            }
        }
    }
}
?>

Create View index app/view/categories/index.ctp

<!-- File: /app/views/categories/index.ctp -->
<h1>Categories</h1>
<?php echo $html->link('Add Category',array('controller' => 'categories', 'action' => 'add')); ?>
 
<table>
    <tr>
        <th>Id</th>
        <th>Title</th>
        <th>Actions</th>
    </tr>
 
    <?php foreach ($categories as $category): ?>
    <tr>
        <td><?php echo $category['Category']['id']; ?></td>
        <td>
            <?php echo $html->link($category['Category']['name'],
array('controller' => 'categories', 'action' => 'edit', $category['Category']['id'])); ?>
        </td>
        <td>
        <?php echo $html->link('Delete', array('action' => 'delete', $category['Category']['id']), null, 'Are you sure?' )?>
        <?php echo $html->link('Edit', array('action'=>'edit', $category['Category']['id']));?>
        </td>
    </tr>
    <?php endforeach; ?>
 
</table>

Create View Edit app/view/categories/edit.ctp

<h1>Edit Category</h1>
<?php
    echo $form->create('Category', array('action' => 'edit'));
    echo $form->input('name');
    echo $form->input('id', array('type'=>'hidden'));
    echo $form->end('Save Category');
?>

Create View add app/view/categories/add.ctp

<h1>Add Category</h1>
<?php
echo $form->create('Category');
echo $form->input('name');
echo $form->end('Save Post');
?>