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数据库数据字典生成脚本 (Database Dictionary Generator)

2017-08-18 09:31 399 查看
<?php

/**
* 生成mysql数据字典
*/

//数据库配置
$config = [
'host'     => '127.0.0.1',
'user'     => 'root',
'password' => 'root',
];

function export_dict($dbname, $config) {
$title = $dbname.' 数据字典';
$dsn = 'mysql:dbname='.$dbname.';host='.$config['host'];
//数据库连接
try {
$con = new PDO($dsn, $config['user'], $config['password'], [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]);
} catch (PDOException $e) {
die('Connection failed: ' . $e->getMessage());
}

$tables = $con->query('SHOW tables')->fetchAll(PDO::FETCH_COLUMN);

//取得所有的表名
foreach ($tables as $table) {
$_tables[]['TABLE_NAME'] = $table;
}

//循环取得所有表的备注及表中列消息
foreach ($_tables as $k => $v) {

$sql = 'SELECT * FROM ';
$sql .= 'INFORMATION_SCHEMA.TABLES ';
$sql .= 'WHERE ';
$sql .= "table_name = '{$v['TABLE_NAME']}' AND table_schema = '{$dbname}'";
$tr = $con->query($sql)->fetch(PDO::FETCH_ASSOC);
$_tables[$k]['TABLE_COMMENT'] = $tr['TABLE_COMMENT'];

$sql = 'SELECT * FROM ';
$sql .= 'INFORMATION_SCHEMA.COLUMNS ';
$sql .= 'WHERE ';
$sql .= "table_name = '{$v['TABLE_NAME']}' AND table_schema = '{$dbname}'";
$fields = [];
$field_result = $con->query($sql)->fetchAll(PDO::FETCH_ASSOC);

foreach ($field_result as $fr)
{
$fields[] = $fr;
}
$_tables[$k]['COLUMN'] = $fields;
}
unset($con);

$mark = '';

//循环所有表
foreach ($_tables as $k => $v) {

$mark .= '## '.$v['TABLE_NAME'].'  '.$v['TABLE_COMMENT'].PHP_EOL;
$mark .= ''.PHP_EOL;
$mark .= '|  字段名  |  数据类型  |  默认值  |  允许非空  |  自动递增  |  备注  |'.PHP_EOL;
$mark .= '| ------ | ------ | ------ | ------ | ------ | ------ |'.PHP_EOL;
foreach ($v['COLUMN'] as $f) {
$mark .= '| '.$f['COLUMN_NAME'].' | '.$f['COLUMN_TYPE'].' | '.$f['COLUMN_DEFAULT'].' | '.$f['IS_NULLABLE'].' | '.($f['EXTRA'] == 'auto_increment' ? '是' : '').' | '.(empty($f['COLUMN_COMMENT']) ? '-' : str_replace('|', '/', $f['COLUMN_COMMENT'])).' |'.PHP_EOL;
}
$mark .= ''.PHP_EOL;

}

//markdown输出
$md_tplt = <<<EOT
# {$title}
>   本数据字典由PHP脚本自动导出,字典的备注来自数据库表及其字段的注释(`comment`).开发者在增改库表及其字段时,请在 `migration` 时写明注释,以备后来者查阅.

{$mark}
EOT;

//html输出
$marked_text = htmlentities($md_tplt);
$html_tplt = <<<EOT
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>{$title} - Powered By Markdown Viewer</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
<link rel="stylesheet" type="text/css" href="http://s1.ystatic.cn/41345695beaa9b2e/css/github-markdown.css">
<script src="http://s1.ystatic.cn/lib/marked/marked.js"></script>
<script src="http://s1.ystatic.cn/lib/highlight.js/highlight.pack.js?v=9.6.0"></script>
<link href="http://s1.ystatic.cn/lib/highlight.js/styles/github.css?v=9.6.0" rel="stylesheet">
</head>
<body>
<div class="markdown-body" id="content" style="margin:auto; width: 1024px;">

</div>
<div id="marked_text" style="display:none;">
{$marked_text}
</div>
<script>
var marked_text = document.getElementById('marked_text').innerText;
var renderer = new marked.Renderer();
renderer.table = function(header, body) {
return '<table class="table table-bordered table-striped">\\n'
+ '<thead>\\n'
+ header
+ '</thead>\\n'
+ '<tbody>\\n'
+ body
+ '</tbody>\\n'
+ '</table>\\n';
};
marked.setOptions({
renderer: renderer,
gfm: true,
tables: true,
breaks: false,
pedantic: false,
sanitize: true,
smartLists: true,
smartypants: false,
langPrefix: 'language-',
//这里使用了highlight对代码进行高亮显示
highlight: function (code) {
return hljs.highlightAuto(code).value;
}
});
document.getElementById('content').innerHTML = marked(marked_text);
</script>
</body>
</html>
EOT;

file_put_contents($dbname.'.md', $md_tplt);
file_put_contents($dbname.'.html', $html_tplt);
}

$dbs = ['yascmf_app', 'test'];
foreach ($dbs as $db) {
export_dict($db, $config);
}
?>
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