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如何快速生成数据库字典（thinkphp5.0）

2019-01-10 07:51:52来源：博客园阅读 ()

本教程将教你快速生成数据库字典

示例代码使用PHP框架：Thinkphp5.0

PHP代码：

  1 /**
  2      * 生成数据库字典html
  3      * 可直接另存为再copy到word文档中使用
  4      *
  5      * @return mixed
  6      */
  7     public function dataDictionary()
  8     {
  9         $tables = Db::query('SHOW TABLE STATUS');
 10         $table_list = array_map('array_change_key_case', $tables);
 11         $table_data = [];
 12         foreach ($table_list as $item) {
 13             $table_name = str_replace(config('database.prefix'),'',$item['name']);
 14             $table_fields = $this->showColumns($table_name);
 15             foreach ($table_fields as &$fieldItem) {
 16                 $fieldItem['comment'] = $this->getDbColumnComment($table_name, $fieldItem['name']);
 17             }
 18             $table_data[] = [
 19                 'table_name' => $item['name'],
 20                 'table_comment' => $item['comment'],
 21                 'table_fields' => $table_fields
 22             ];
 23         }
 24         $this->assign('table_data', $table_data);
 25 
 26         return $this->fetch('');
 27     }
 28 
 29     /**
 30      * 显示表结构信息
 31      *
 32      * @param string $table
 33      * @return array
 34      */
 35     private function showColumns($table){
 36 
 37         $sql = 'SHOW COLUMNS FROM `'.config('database.prefix').$table.'`';
 38         $result = Db::query($sql);
 39         if ($result === false) return array();
 40         $array = array();
 41         if (!empty($result)) {
 42             foreach ($result as $k=>$v) {
 43                 $array[$v['Field']] = [
 44                     'name'    => $v['Field'],
 45                     'type'    => $v['Type'],
 46                     'null'       => $v['Null'],
 47                     'default' => $v['Default'],
 48                     'primary' => (strtolower($v['Key']) == 'pri'),
 49                     'autoinc' => (strtolower($v['Extra']) == 'auto_increment'),
 50                 ];
 51             }
 52         }
 53 
 54         return $array;
 55     }
 56 
 57     /**
 58      * 获取数据库字段注释
 59      *
 60      * @param string $table_name 数据表名称(必须，不含前缀)
 61      * @param string|boolean $field 字段名称(默认获取全部字段,单个字段请输入字段名称)
 62      * @param string $table_schema 数据库名称(可选)
 63      * @return string
 64      */
 65     private function getDbColumnComment($table_name = '', $field = true, $table_schema = ''){
 66         // 接收参数
 67         $database = config('database');
 68 
 69         $table_schema = empty($table_schema) ? $database['database'] : $table_schema;
 70         $table_name = $database['prefix'] . $table_name;
 71 
 72         // 处理参数
 73         $param = [
 74             $table_name,
 75             $table_schema
 76         ];
 77 
 78         // 字段
 79         $columnName = '';
 80         if($field !== true){
 81             $param[] = $field;
 82             $columnName = "AND COLUMN_NAME = ?";
 83         }
 84 
 85         // 查询结果
 86         $result = Db::query("SELECT COLUMN_NAME as field,column_comment as comment FROM INFORMATION_SCHEMA.COLUMNS WHERE table_name = ? AND table_schema = ? $columnName", $param);
 87         if(empty($result) && $field !== true){
 88             return $table_name . '表' . $field . '字段不存在';
 89         }
 90 
 91         // 处理结果
 92         foreach($result as $k => $v){
 93             $data[$v['field']] = $v['comment'];
 94             if(strpos($v['comment'], '#*#') !== false){
 95                 $tmpArr = explode('#*#', $v['comment']);
 96                 $data[$v['field']] = json_decode(end($tmpArr), true);
 97             }
 98         }
 99         // 字段注释格式不正确
100         if(empty($data)){
101             return $table_name . '表' . $field . '字段注释格式不正确';
102         }
103         return count($data) == 1 ? reset($data) : $data;
104     }

Html代码：

 1 <html>
 2 <head>
 3     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 4     <title>快速生成数据库字典</title>
 5     <style type="text/css">
 6         .table-name {
 7             text-align: center;
 8             margin: 15px auto;
 9             font-weight: bold;
10             font-size: 20px;
11         }
12 
13         table {
14             border-collapse: collapse;
15             margin: 0 auto;
16             text-align: center;
17             width: 550px;
18         }
19 
20         table caption {
21             margin: 15px auto;
22         }
23 
24         table td, table th {
25             border: 1px solid #cad9ea;
26             color: #666;
27             height: 30px;
28         }
29 
30         table thead th {
31             background-color: #CCE8EB;
32             width: 100px;
33         }
34 
35         table tr:nth-child(odd) {
36             background: #fff;
37         }
38 
39         table tr:nth-child(even) {
40             background: #F5FAFA;
41         }
42     </style>
43 </head>
44 <body>
45 
46 {foreach $table_data as $tableInfo}
47 <div class="table-name">{$tableInfo.table_name}(表注释：{$tableInfo.table_comment})</div>
48 <table class="table">
49     <thead>
50     <tr>
51         <th>字段</th>
52         <th>类型</th>
53         <th>空</th>
54         <th>默认</th>
55         <th>注释</th>
56     </tr>
57     </thead>
58     <tbody>
59     {foreach $tableInfo['table_fields'] as $field}
60     <tr>
61         <td>
62             {$field.name}
63         </td>
64         <td>
65             {$field.type}
66         </td>
67         <td>
68             {$field.null}
69         </td>
70         <td style="max-width: 30px;">
71             {$field.default}
72         </td>
73         <td>
74             {$field.comment}
75         </td>
76     </tr>
77     {/foreach}
78     </tbody>
79 </table>
80 {/foreach}
81 
82 
83 </body>
84 </html>