ThinkPHP为了节省一些重复的步骤，写了个简单版的生成model的工具，逆向生成model代码，节省时间，专注写业务代码。
ThinkPHP中的命令行也提供了一些生成代码的命令：

make:controller  创建控制器
make:model 创建模型
make:middleware 创建中间件

ThinkPHP也提供了逆向生成model的命令：optimize:autoload，但是提示：Command “optimize:autoload” is not defined.
于是就算了，也不想去研究它。还不如直接写一个。

下面是一个简单的逆向工程工具实现代码：

<?php

namespace app\controller;

use app\BaseController;
use think\Request;
use think\Facade\Db;

class GeneratorController extends BaseController
{


    static $schema = "shushan";

    public function generator()
    {

        //获取表名
        $tables = Db::query("SELECT TABLE_NAME  as 'name'
        from information_schema.tables 
        WHERE TABLE_SCHEMA = :dataBase", ["dataBase" => GeneratorController::$schema]);

        foreach ($tables as $key => $value) {

            foreach ($value as $item) {

                //获取字段名称和备注
                $COLUMNS = Db::query("select COLUMN_NAME,DATA_TYPE,COLUMN_COMMENT 
            from information_schema.COLUMNS 
            where table_name = :item
            and table_schema = :dataBase", ["item" => $item, "dataBase" => GeneratorController::$schema]);


                $file = fopen("tempFile/" . GeneratorController::snakeToCamel($item) . ".php", "w");

                fwrite($file, "<?php" . PHP_EOL . "namespace app\model;" . PHP_EOL
                    . PHP_EOL . "use think\model;" . PHP_EOL
                    . PHP_EOL . "class " . GeneratorController::snakeToCamel($item) . " extends Model"
                    . PHP_EOL . "{" . PHP_EOL);

                $content = "//设置字段信息" . PHP_EOL .
                    "protected $" . "schema = [" . PHP_EOL;
                fwrite($file, $content);
                //写入字段
                foreach ($COLUMNS as $COLUMN) {
                    $content = "'" . $COLUMN["COLUMN_NAME"] . "'" . "       =>"  .
                        "'" . $COLUMN["DATA_TYPE"] . "'" . "," . "//" . $COLUMN["COLUMN_COMMENT"] . PHP_EOL;
                    fwrite($file, $content);
                }

                $content = PHP_EOL . "];";
                fwrite($file, $content);

                fwrite($file, PHP_EOL . "}");
                fclose($file);
            }
        }

        return $this->success();
    }

    static function snakeToCamel($str, $capitalized = true)
    {
        $result = str_replace('_', '', ucwords($str, '_'));
        if (!$capitalized) {
            $result = lcfirst($result);
        }
        return $result;
    }
}

生成的效果：