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如何生成数据库字典?
示例代码使用PHP框架:Thinkphp5.0
PHP代码:
/** * 生成数据库字典html * 可直接另存为再copy到word文档中使用 * * @return mixed */ public function dataDictionary() { $tables = Db::query('SHOW TABLE STATUS'); $table_list = array_map('array_change_key_case', $tables); $table_data = []; foreach ($table_list as $item) { $table_name = str_replace(config('database.prefix'),'',$item['name']); $table_fields = $this->showColumns($table_name); foreach ($table_fields as &$fieldItem) { $fieldItem['comment'] = $this->getDbColumnComment($table_name, $fieldItem['name']); } $table_data[] = [ 'table_name' => $item['name'], 'table_comment' => $item['comment'], 'table_fields' => $table_fields ]; } $this->assign('table_data', $table_data); return $this->fetch(''); } /** * 显示表结构信息 * * @param string $table * @return array */ private function showColumns($table){ $sql = 'SHOW COLUMNS FROM `'.config('database.prefix').$table.'`'; $result = Db::query($sql); if ($result === false) return array(); $array = array(); if (!empty($result)) { foreach ($result as $k=>$v) { $array[$v['Field']] = [ 'name' => $v['Field'], 'type' => $v['Type'], 'null' => $v['Null'], 'default' => $v['Default'], 'primary' => (strtolower($v['Key']) == 'pri'), 'autoinc' => (strtolower($v['Extra']) == 'auto_increment'), ]; } } return $array; } /** * 获取数据库字段注释 * * @param string $table_name 数据表名称(必须,不含前缀) * @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) * @param string $table_schema 数据库名称(可选) * @return string */ private function getDbColumnComment($table_name = '', $field = true, $table_schema = ''){ // 接收参数 $database = config('database'); $table_schema = empty($table_schema) ? $database['database'] : $table_schema; $table_name = $database['prefix'] . $table_name; // 处理参数 $param = [ $table_name, $table_schema ]; // 字段 $columnName = ''; if($field !== true){ $param[] = $field; $columnName = "AND COLUMN_NAME = ?"; } // 查询结果 $result = Db::query("SELECT COLUMN_NAME as field,column_comment as comment FROM INFORMATION_SCHEMA.COLUMNS WHERE table_name = ? AND table_schema = ? $columnName", $param); if(empty($result) && $field !== true){ return $table_name . '表' . $field . '字段不存在'; } // 处理结果 foreach($result as $k => $v){ $data[$v['field']] = $v['comment']; if(strpos($v['comment'], '#*#') !== false){ $tmpArr = explode('#*#', $v['comment']); $data[$v['field']] = json_decode(end($tmpArr), true); } } // 字段注释格式不正确 if(empty($data)){ return $table_name . '表' . $field . '字段注释格式不正确'; } return count($data) == 1 ? reset($data) : $data; }
Html代码:
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>快速生成数据库字典</title> <style type="text/css"> .table-name { text-align: center; margin: 15px auto; font-weight: bold; font-size: 20px; } table { border-collapse: collapse; margin: 0 auto; text-align: center; width: 550px; } table caption { margin: 15px auto; } table td, table th { border: 1px solid #cad9ea; color: #666; height: 30px; } table thead th { background-color: #CCE8EB; width: 100px; } table tr:nth-child(odd) { background: #fff; } table tr:nth-child(even) { background: #F5FAFA; } </style> </head> <body> {foreach $table_data as $tableInfo} <div class="table-name">{$tableInfo.table_name}(表注释:{$tableInfo.table_comment})</div> <table class="table"> <thead> <tr> <th>字段</th> <th>类型</th> <th>空</th> <th>默认</th> <th>注释</th> </tr> </thead> <tbody> {foreach $tableInfo['table_fields'] as $field} <tr> <td> {$field.name} </td> <td> {$field.type} </td> <td> {$field.null} </td> <td style="max-width: 30px;"> {$field.default} </td> <td> {$field.comment} </td> </tr> {/foreach} </tbody> </table> {/foreach} </body> </html>
注:如需保存到word文档,需网页另存为html文件并用word软件打开,将内容全选复制到新的word文档中即可。
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