今天继续深入学习 Codeigniter 这个框架，尝试着用它搭一个简易的论坛系统，熟悉一下操作。
大致讲一下每个页面的 MVC 构成。
项目地址：
https://github.com/Robinson28years/CodeIgniter-learning
查看所有帖子
模型层
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| public function get_threads($id = FALSE)
{
if ($id === FALSE) {
$query = $this->db->get('threads');
return $query->result_array();
}
}
|
控制器层
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| public function index()
{
$data['threads'] = $this->forum_model->get_threads();
$data['title'] = '论坛首页';
$this->load->view('templates/header', $data);
$this->load->view('forum/index',$data);
$this->load->view('templates/footer');
}
|
视图层
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| <div class="container">
<div class="row">
<a href="<?php echo site_url('forum/create') ?>" class="btn btn-success" type="button" >创建帖子</a>
<div class="col-md-8 col-md-offset-2">
<div class="panel panel-default">
<div class="panel-heading"><?php echo $title ?></div>
<div class="panel-body">
<?php foreach ($threads as $thread): ?>
<article>
<a href="<?php echo site_url('forum/view/'.$thread['id']);?>">
<h4><?php echo $thread['title']; ?></h4>
</a>
<div class="body"><?php echo $thread['body']; ?></div>
</article>
<hr>
<?php endforeach; ?>
</div>
</div>
</div>
</div>
</div>
|
效果图
![]()
新建帖子
因为视图层代码太长，所以接下来就不放视图层代码了，有需要的评论里说下。
模型层
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| public function set_threads()
{
$data = array(
'user_id' => 1,
'title' => $this->input->post('title'),
'body' => $this->input->post('body')
);
return $this->db->insert('threads', $data);
}
|
控制层
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| public function create()
{
$this->form_validation->set_rules('title', 'Title', 'required');
$this->form_validation->set_rules('body', 'Body', 'required');
$data['title'] = '创建帖子';
if ($this->form_validation->run() === FALSE) {
$this->load->view('templates/header',$data);
$this->load->view('forum/create',$data);
$this->load->view('templates/footer');
}
else {
$this->forum_model->set_threads();
redirect('/forum');
}
}
|
效果图
![]()
查看单个帖子
模型层
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| public function get_threads($id = FALSE)
{
$query = $this->db->select('threads.id, threads.title, threads.body, users.name')
->from('threads')
->from('users')
->where('threads.id', $id)
->where('users.id = threads.user_id')
->get();
return $query->row_array();
}
|
控制层
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| public function view($id)
{
$data['thread'] = $this->forum_model->get_threads($id);
$data['replies'] = $this->forum_model->get_replies($id);
$data['title'] = '讨论';
$this->load->view('templates/header', $data);
$this->load->view('forum/view',$data);
$this->load->view('templates/footer');
}
|
效果图
![]()
修改帖子内容
模型层
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| public function update_threads($id)
{
$data = array(
'id' => $id,
'user_id' => 1,
'title' => $this->input->post('title'),
'body' => $this->input->post('body')
);
$this->db->replace('threads', $data);
}
|
控制层
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| public function update($id)
{
$this->form_validation->set_rules('title', 'Title', 'required');
$this->form_validation->set_rules('body', 'Body', 'required');
$data['title'] = '更新帖子';
if ($this->form_validation->run() === FALSE) {
$data['thread'] = $this->forum_model->get_threads($id);
$this->load->view('templates/header',$data);
$this->load->view('forum/update',$data);
$this->load->view('templates/footer');
}
else {
$this->forum_model->update_threads($id);
redirect('/forum/view/'.$id);
}
}
|
效果图
![]()
回复帖子
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| public function set_replies($id)
{
$data = array(
'user_id' => 1,
'thread_id' => $id,
'body' => $this->input->post('body')
);
return $this->db->insert('replies', $data);
}
|
控制器层
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| public function reply($id)
{
$this->form_validation->set_rules('body', 'Body', 'required');
if ($this->form_validation->run() === true) {
$this->forum_model->set_replies($id);
redirect('/forum/view/'.$id);
}
}
|
效果图
![]()
最后
论坛系统和购物系统是学习一个语言最好的实践，今天看着手册简单的实现了一下基本的论坛功能，但是还没做论坛用户权限功能，明天的工作就是将用户权限实现一下，做好拦截。
