CI中的AR操作

Posted 2020-06-10

 

 1     /**
 2      * CI 中的 AR 操作
 3      * @author    zhaoyingnan
 4      **/
 5     public function mAR()
 6     {
 7         /*************** 查询 *************/
 8         //select * from mp4ba limit 21,10;
 9         //$objResult    =    $this->db->get(‘mp4ba‘, 10, 21);
10         //echo $this->db->last_query();die;
11 
12 
13         //select * from mp4ba where id =32 limit 21,10;
14         //select * from mp4ba where id =32 and name = ‘刺客聂隐娘‘limit 21,10;
15         //$objResult    =    $this->db->get_where(‘mp4ba‘, array(‘id‘=>32), 10, 21);
16         //echo $this->db->last_query();die;
17         //$objResult    =    $this->db->get_where(‘mp4ba‘, array(‘id‘=>32,‘name‘=>‘刺客聂隐娘‘), 10, 21);
18         //echo $this->db->last_query();die;
19 
20 
21         //select id,name,url from mp4ba where id =32;
22         //$objResult    =    $this->db->select(‘id,name,url‘)->get_where(‘mp4ba‘, array(‘id‘=>32));
23         //echo $this->db->last_query();die;
24 
25         //select id,name,url from mp4ba where id =32 or id=39;
26         //$objResult    =    $this->db->select(‘id,name,url‘)->where(array(‘id‘=>32))->or_where(array(‘id‘=>39))->get(‘mp4ba‘);
27         //echo $this->db->last_query();die;
28         
29 
30         //select id,name,url from mp4ba where id in(33,44,55);
31         //select id,name,url from mp4ba where id in(33,44,55) or sort_id in (3,4);
32         //select id,name,url from mp4ba where id not in(33,44,55);
33         //$objResult    =    $this->db->select(‘id,name,url‘)->where_in(‘id‘, array(33,44,55))->get(‘mp4ba‘);
34         //$objResult    =    $this->db->select(‘id,name,url‘)->where_in(‘id‘, array(33,44,55))->or_where_in(‘sort_id‘, array(3,4))->get(‘mp4ba‘);
35         //$objResult    =    $this->db->select(‘id,name,url‘)->where_not_in(‘id‘, array(33,44,55))->get(‘mp4ba‘);
36         //echo $this->db->last_query();die;
37 
38         //select id,name,url from mp4ba join user on (mp4ba.uid=user.id) order by mp4ba.dateline desc;
39         //$objResult    =    $this->db->select(‘id,name,url‘)->from(‘mp4ba‘)->join(‘user‘, ‘mp4ba.uid = user.id‘)->order_by(‘mp4ba.dateline‘, ‘desc‘)->get();
40         //echo $this->last_query();die;
41 
42 
43         //select * from mp4ba where name like ‘%刺客%‘;
44         //select * from mp4ba where name not like ‘%刺客%‘;
45         //select * from mp4ba where name like ‘%刺客%‘ or url like ‘eqfdf%‘;
46         //$objResult    =    $this->db->like(‘name‘, ‘刺客‘)->get(‘mp4ba‘);
47         //$objResult    =    $this->db->not_like(‘name‘, ‘刺客‘)->get(‘mp4ba‘);
48         //$objResult    =    $this->db->like(‘name‘, ‘刺客‘)->or_like(‘url‘, ‘eqfdf‘, ‘after‘)->get(‘mp4ba‘);
49         //echo $this->db->last_query();die;
50 
51 
52 
53         //select max(id) from mp4ba where name = ‘刺客聂隐娘‘;
54         //select min(id) from mp4ba where name = ‘刺客聂隐娘‘;
55         //$objResult    =    $this->db->select_max(‘id‘)->get_where(‘mp4ba‘, array(‘name‘=>‘刺客聂隐娘‘));
56         //echo $this->db->last_query();die;
57         //$objResult    =    $this->db->select_min(‘id‘)->get_where(‘mp4ba‘, array(‘name‘=>‘刺客聂隐娘‘));
58         //echo $this->db->last_query();die;
59 
60         //SELECT id,sort_id,menu,name FROM mp4ba WHERE id > 3 ORDER BY `dateline` desc LIMIT 10,100
61         //$objResult    =    $this->db->select(‘id,sort_id,menu,name‘)->from(‘mp4ba‘)->where(‘id >‘, 3)->order_by(‘dateline desc‘)->limit(100,10)->get();
62         //echo $this->db->last_query();
63         //return $objResult->result();
64 
65 
66         /*************** 插入 *************/
67         //生成一条基于你所提供的数据的SQL插入字符串并执行查询。你可以向函数传递 数组 或一个 对象。下面是一个使用数组的例子：
68         $arInsert    =    array(
69             ‘name‘        =>    ‘小黄人‘,
70             ‘url‘        =>    ‘www.test.com‘,
71             ‘sort_id‘    =>    1,
72             ‘menu‘        =>    ‘动画片‘
73         );
74         //$this->db->insert(‘mp4ba‘, $arInsert);
75         //echo $this->db->insert_id();die;
76 
77 
78         /*************** 修改 *************/
79         $arData    =    array(
80             ‘name‘        =>    ‘小黄人,好玩嘛‘,
81             ‘url‘        =>    ‘www.test_xiaohuangren.com‘,
82             ‘sort_id‘    =>    1,
83             ‘menu‘        =>    ‘动画片‘
84         );
85         //$this->db->update(‘mp4ba‘, $arData, array(‘id‘=>3498));
86         //echo $this->db->affected_rows();    #受影响的行数
87         //echo ‘<br/>‘;
88         //$objResult    =    $this->db->where(array(‘id‘=>3498))->get(‘mp4ba‘);
89         //formatOut($objResult->result());die;
90         
91         /*************** 删除 *************/
92         $this->db->delete(‘mp4ba‘, array(‘id‘=>3498));
93         echo $this->db->affected_rows();    #受影响的行数
94     }

 

 

转载：http://www.3fwork.com/b202/001766MYM021065/