CakePHP学习之三 单表数据显示及增删操作

单表数据显示及增删操作(原文出自http://book.cakephp.org/view/329/Getting-Cake 可以自己看看对比一下，例子还是比较详细的)

1.表取CakePHP学习之二的post表

2. models目录下的post.php

<?php
class Post extends AppModel{
    var $name = 'Post';

}
?>

posts_controller.php

<?php
class PostsController extends AppController{
   var $name = 'Posts';
   //var $scaffold;
    function index() {
 $this->set('posts', $this->Post->find('all'));
 }
 function view($id = null) {
  $this->Post->id = $id;
  $this->set('post', $this->Post->read());
 }
function add() {
 if (!empty($this->data)) {
   if ($this->Post->save($this->data)) {
    $this->Session->setFlash('Your post has been saved.');
    $this->redirect(array('action' => 'index'));
   }
  }

}

function delete($id) {
 $this->Post->del($id);
 $this->Session->setFlash('The post with id: '.$id.' has been deleted.');
 $this->redirect(array('action'=>'index'));
}
function edit($id = null) {
 $this->Post->id = $id;
 if (empty($this->data)) {
  $this->data = $this->Post->read();
 } else {
  if ($this->Post->save($this->data)) {
   $this->Session->setFlash('Your post has been updated.');
   $this->redirect(array('action' => 'index'));
  }
 }
}

 }
?>

3. views目录下的文件

index.ctp

<?php echo $html->link('Add Post',array('controller' => 'posts', 'action' => 'add'))?>
<h1>Blog posts</h1>
<table>
 <tr>
  <th>Id</th>
  <th>Title</th>
  <th>Created</th>
 </tr>

 <!-- Here is where we loop through our $posts array, printing out post info -->

 <?php foreach ($posts as $post): ?>
 <tr>
  <td><?php echo $post['Post']['id']; ?></td>
  <td>
   <?php echo $html->link($post['Post']['title'],
"/posts/view/".$post['Post']['id']); ?>
  </td>
  <td>
  <?php echo $html->link('Delete', array('action' => 'delete', 'id' => $post['Post']['id']), null, 'Are you sure?' )?>
  <?php echo $html->link('Edit', array('action'=>'edit', 'id'=>$post['Post']['id']));?>

  </td>

  <td><?php echo $post['Post']['created']; ?></td>
 </tr>
 <?php endforeach; ?>

</table>

view.ctp

<h1><?php echo $post['Post']['title']?></h1>

<p><small>Created: <?php echo $post['Post']['created']?></small></p>

<p><?php echo $post['Post']['body']?></p>

add.ctp

<h1>Add Post</h1>
<?php
echo $form->create('Post');
echo $form->input('title');
echo $form->input('body', array('rows' => '3'));
echo $form->end('Save Post');
?>

/app/views/posts/edit.ctp
	
<h1>Edit Post</h1>
<?php
	echo $form->create('Post', array('action' => 'edit'));
	echo $form->input('title');
	echo $form->input('body', array('rows' => '3'));
	echo $form->input('id', array('type'=>'hidden')); 
	echo $form->end('Save Post');
?>