ci框架学习整理

--

-- 表的结构 `yi_article`

--

CREATE TABLE IF NOT EXISTS `yi_article` (

`id` int(11) unsigned NOT NULL auto_increment,

`title` varchar(256) NOT NULL,

`content` mediumtext NOT NULL,

`add_man` varchar(20) NOT NULL,

`add_time` datetime NOT NULL,

`views` int(11) NOT NULL,

`tag` tinyint(4) NOT NULL,

PRIMARY KEY  (`id`)

) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=21 ;

article.php

<?php

class Article extends CI_Controller{

public $tips;

function __construct(){

parent::__construct();

//加载我自己的类库

$this->load->library('myclass');

$this->load->database();

$this->load->helper('url');

$this->tips=array(

'required'=>' [%s] 是必须填写的！',

'is_unique'=>'此 [%s] 已经存在，请输入其它名称！',

'min_lenght'=>' [%s] 最小长度为 [%s]',

'max_length'=>'[%s] 最大长度为 [%s]'

);

}

function index(){

echo "这里是文章的首页";

echo "<br />";

//加载url辅助函数

$this->load->helper('url');

$addr=site_url('article/article_list');

echo "<a href='$addr'>查看文章</a>";

$addr=site_url('article/article_page');

echo "<a href='$addr'>查看分页</a>";

}

function article_list(){

echo "这里是文章列表";

//加载数据库模型

//$this->load->model('article_model');

//$this->article_model->index();

//读取所有的文章

$this->load->database();

echo "<br />";

$query=$this->db->where("id >",5)->select('id,title')->from('article')->order_by('id','desc')->limit(4)->get();

$info=$query->result_array();//当然你可以用result()

$this->myclass->p($info);

echo "第一条记录的标题：".$info[0]['title'];

echo "<br />";

echo "第二条记录的标题：".$info[1]['id'];

echo "<br />";

echo "表article中共有这么些记录：".$this->db->count_all('article');

echo "<br />";

echo "本次共查询出这么些条记录：".$query->num_rows();

}

function article_page($page=1){

///////////////////////////////////

$config=array();

//第一步查询出总记录数

$this->load->database();

$config['total_rows']=$this->db->select('*')->from('article')->count_all_results();

//每页记录数

$config['per_page']=5;

//基础url

$this->load->helper('url');

$config['base_url']=site_url('article/article_page');

//显示的链接数

$config['num_links']=100;

//在地址栏显示当前页码

$config['use_page_numbers']=true;

//定义首页

$config['first_link']='首页';

//定义末页

$config['last_link']='尾页';

//上一页

$config['prev_link']='上一页';

//下一页

$config['next_link']='下一页';

//把分页包起来

$config['full_tag_open']='<p>';

$config['full_tag_close']='</p>';

//第二步加载类库

$this->load->library('pagination');

$this->pagination->initialize($config);

echo $this->pagination->create_links();

/////////////////////////////////////

$page=$page?intval($page):1;

$start=($page-1)*$config['per_page'];

$query=$this->db->select('*')->from('article')->limit($config['per_page'],$start);

$info=$query->get()->result_array();

$this->myclass->p($info);

echo $this->pagination->create_links();

//echo base_url('abc/def');

}

protected function _page($total_rows,$per_page,$base_url){

///////////////////////////////////

$config=array();

//第一步查询出总记录数

//$this->load->database();////

$config['total_rows']=$total_rows;

//每页记录数

$config['per_page']=$per_page;

//基础url

$this->load->helper('url');////

$config['base_url']=site_url($base_url);

//显示的链接数

$config['num_links']=100;

//在地址栏显示当前页码

$config['use_page_numbers']=true;

//定义首页

$config['first_link']='首页';

//定义末页

$config['last_link']='尾页';

//上一页

$config['prev_link']='上一页';

//下一页

$config['next_link']='下一页';

//把分页包起来

$config['full_tag_open']='<p>';

$config['full_tag_close']='</p>';

//第二步加载类库

$this->load->library('pagination');

$this->pagination->initialize($config);

return $this->pagination->create_links();

/////////////////////////////////////

}

function page($page=1){

$config['per_page']=5;

$page=$page?intval($page):1;

$start=($page-1)*$config['per_page'];

$query=$this->db->select('*')->from('article')->limit($config['per_page'],$start);

$info=$query->get()->result_array();

return $info;

}

function article_add(){

$this->load->library('form_validation');

//开始设置验证规则

//set_message可以传一个一维数组

$chinesetips=$this->tips;

$this->form_validation->set_message($chinesetips);

/*

$this->form_validation->set_message('required', ' [%s] 是必须填写的！');

$this->form_validation->set_message('is_unique', '此 [%s] 已经存在，请输入其它名称！');

$this->form_validation->set_message('min_length', ' [%s] 最小长度为 [%s]');

$this->form_validation->set_message('max_length', ' [%s] 最大长度为 [%s]');

*/

$this->form_validation->set_rules('title','标题','trim|required|is_unique[article.title]|min_length[6]|max_length[12]');

$this->form_validation->set_rules('content','内容','required');

$this->form_validation->set_rules('tag','状态','required');

if($this->form_validation->run()==true){

echo "表单验证成功！";

print_r($this->input->post());

$data=$this->input->post();

unset($data['Submit']);

$data['add_time']=date('Y-m-d H:i:s');

$data['views']='0';

$st=$this->db->insert('article',$data);

if($st){

echo "数据插入成功！";

echo "新的id为：".$this->db->insert_id();

}

//echo get_magic_quotes_gpc();

}else{

echo "表单验证失败！";

echo "<br />";

echo validation_errors();

}

}

function article_add_viewer(){

$this->load->helper('url');

$this->load->view('article_add');

}

function article_links(){

$addr=site_url('article/article_mod_viewer/19');

echo "<a href='$addr'>修改19</a>";

}

function article_mod_viewer($id){

if($id==""){

echo "没有传递参数";

exit;

}

$this->load->helper('url');

//从数据库中查出来

$query=$this->db->select()->from('article')->where('id',$id)->get();

$info=$query->row_array();

print_r($info);

$this->load->view('article_mod',$info);

}

function abc($val){

$this->form_validation->set_message('abc','不行');

//p($val);

return true;

}

function article_mod(){

$this->load->library('form_validation');

//开始设置验证规则

//set_message可以传一个一维数组

$chinesetips=$this->tips;

$this->form_validation->set_message($chinesetips);

$this->form_validation->set_rules('title','标题','trim|required|min_length[6]|max_length[12]|callback_abc');

$this->form_validation->set_rules('content','内容','required');

$this->form_validation->set_rules('tag','状态','required');

if($this->form_validation->run()==true){

echo "表单验证成功！";

print_r($this->input->post());

$data=$this->input->post();

$id=$data['id'];

unset($data['id']);

unset($data['Submit']);

$data['add_time']=date('Y-m-d H:i:s');

$data['views']='0';

//p($data);

$st=$this->db->where('id',$id)->update('article',$data);

if($st){

echo "数据修改成功";

}else{

echo "数据修改失败";

}

}else{

echo "表单验证失败！";

echo "<br />";

echo validation_errors();

}

}

function article_del($id=''){

if($id==""){

//exit('请传id');

}

$id=array(17,18,19);

$this->db->where_in('id',$id)->delete('article');

$st=$this->db->affected_rows();

echo $st;

if($st){

echo "数据删除成功！";

}else{

echo "数据删除失败！";

}

}

}

?>

article_add.php

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

<head>

<meta http-equiv="content-type" content="text/html; charset=utf-8" />

<meta name="author" content="Www.XiaZaiBa.Com" />

<title>无标题 1</title>

</head>

<body>

<form name="form1" action="<?php echo site_url('article/article_add')?>" method="post">

标题：<input name="title" type="text" value="" /><br />

内容：<input name="content" type="text" value="" /><br />

添加人：<input name="add_man" type="text" value="" /><br />

添加时间：系统自动记录<br />

状态：<input name="tag" type="radio" value="1" />显示 <input name="tag" type="radio" value="0" />隐藏<br />

<input type="submit" name="Submit" value="提交" />

</form>

</body>

</html>

article_mod.php

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

<head>

<meta http-equiv="content-type" content="text/html; charset=utf-8" />

<meta name="author" content="Www.XiaZaiBa.Com" />

<title>无标题 1</title>

</head>

<body>

<form name="form1" action="<?php echo site_url('article/article_mod')?>" method="post">

标题：<input name="title" type="text" value="<?php echo $title;?>" /><br />

内容：<input name="content" type="text" value="<?php echo $content?>" /><br />

添加人：<input name="add_man" type="text" value="<?php echo $add_man;?>" /><br />

添加时间：系统自动记录<br />

状态：<input name="tag" type="radio" value="1" <?php if($tag==1)echo 'checked';?> />显示 <input name="tag" type="radio" value="0" <?php if($tag==0)echo 'checked';?> />隐藏<br />

<input type="submit" name="Submit" value="提交" />

<input type="hidden" value="<?php echo $id;?>" name="id" />

</form>

</body>

</html>