攻克CakePHP(PHP中的Ruby On Rails框架)图文介绍_php技巧

CakePHP框架实例介绍分析。图文并茂

CakePHP框架首页： http://www.cakephp.org/

下载后导入工程中，目录结构如下图（使用版本：1.1.19.6305）

搭建PHP环境，这里使用了AppServ2.5.9。 下载主页 http://www.php.cn/

MySQL中新建数据库blog,并运行如下SQL文建表。

/* First, create our posts table: */
CREATE TABLE posts (
id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
title VARCHAR(50),
body TEXT,
created DATETIME DEFAULT NULL,
modified DATETIME DEFAULT NULL
);

/* Then insert some posts for testing: */
INSERT INTO posts (title,body,created)
VALUES ('The title', 'This is the post body.', NOW());
INSERT INTO posts (title,body,created)
VALUES ('A title once again', 'And the post body follows.', NOW());
INSERT INTO posts (title,body,created)
VALUES ('Title strikes back', 'This is really exciting! Not.', NOW());

修改工程app/config/目录下database.php.default文件名为database.php，并修改其配置。

修改Apache的httpd.conf文件。

Apache2.2版本的，直接把#LoadModule rewrite_modulemodules/mod_rewrite.so的注释删掉即可。

2.0以前的版本，据说要修改2个地方： LoadModule rewrite_module libexec/httpd/mod_rewrite.so 和AddModule mod_rewrite.c

增加Model：

/app/models/post.php

代码：

<?php

require_once ('cake/app_model.php');

class Post extends AppModel {

public $name = 'Post';

public $validate = array(

'title' => VALID_NOT_EMPTY,
'body' => VALID_NOT_EMPTY

);
}

?>

增加Cotroller模块：

app/controllers/posts_controller.php

代码：

<?php

require_once ('cake/app_controller.php');

class PostsController extends AppController {

public $name = 'Posts';

function index()
{
$this->set('posts', $this->Post->findAll());
}

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->flash('Your post has been saved.','/posts');
$this->redirect("/posts/index");
}
}
}

function delete($id)
{
$this->Post->del($id);
//$this->flash('The post with id: '.$id.' has been deleted.', '/posts');
$this->redirect("/posts/index");
}

function edit($id = null)
{
if (empty($this->data))
{
$this->Post->id = $id;
$this->data = $this->Post->read();
}
else
{
if ($this->Post->save($this->data['Post']))
{
//$this->flash('Your post has been updated.','/posts');
$this->redirect("/posts/index");
}
}
}
}

?>

增加页面模块：

/app/views/下追加posts文件夹,然后再添加4个页面（一般后缀为.rhtml）

代码依次为：

index.thtml

<h1>Blog posts</h1>
<p><?php echo $html->link("Add Post", "/posts/add"); ?>
<table>
<tr>
<th>Id</th>
<th>Title</th>
<th>Created</th>
</tr>

<!-- Here's 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']);?>
<?php echo $html->link(
'Delete',
"/posts/delete/{$post['Post']['id']}",
null,
'Are you sure?'
)?>
<?php echo $html->link('Edit', '/posts/edit/'.$post['Post']['id']);?>
</td>
</td>
<td><?php echo $post['Post']['created']; ?></td>
</tr>
<?php endforeach; ?>

</table>

view.thtml

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

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

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

<br>

<p><?php echo $html->link('Return', '/posts/index/');?></p>

edit.thtml

<h1>Edit Post</h1>
<form method="post" action="<?php echo $html->url('/posts/edit')?>">
<?php echo $html->hidden('Post/id'); ?>
<p>
Title:
<?php echo $html->input('Post/title', array('size' => '40'))?>
<?php echo $html->tagErrorMsg('Post/title', 'Title is required.') ?>
</p>
<p>
Body:
<?php echo $html->textarea('Post/body', array('rows'=>'10')) ?>
<?php echo $html->tagErrorMsg('Post/body', 'Body is required.') ?>
</p>
<p>
<?php echo $html->submit('Save') ?>
</p>
</form>

add.thtml

<h1>Add Post</h1>
<form method="post" action="<?php echo $html->url('/posts/add')?>">
<p>
Title:
<?php echo $html->input('Post/title', array('size' => '40'))?>
<?php echo $html->tagErrorMsg('Post/title', 'Title is required.') ?>
</p>
<p>
Body:
<?php echo $html->textarea('Post/body', array('rows'=>'10')) ?>
<?php echo $html->tagErrorMsg('Post/body', 'Body is required.') ?>
</p>
<p>
<?php echo $html->submit('Save') ?>
</p>
</form>

测试URL: http://localhost/phpblog/posts/
参考网页：http://manual.cakephp.org/appendix/blog_tutorial
以下是CakePHP框架的一些特性： http://www.lostk.com/blog/cakephp_note/

e="COLOR: #000000">
Title:
<?php echo $html->input('Post/title', array('size' => '40'))?>
<?php echo $html->tagErrorMsg('Post/title', 'Title is required.') ?>
</p>
<p>
Body:
<?php echo $html->textarea('Post/body', array('rows'=>'10')) ?>
<?php echo $html->tagErrorMsg('Post/body', 'Body is required.') ?>
</p>
<p>
<?php echo $html->submit('Save') ?>
</p>
</form>