增加 optimize:schema 命令 用于生成 数据表字段信息缓存

library/think/console/command/optimize/Schema.php

@@ -0,0 +1,53 @@
+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2016 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: yunwuxin <448901948@qq.com>
+// +----------------------------------------------------------------------
+namespace think\console\command\optimize;
+
+use think\console\Command;
+use think\console\Input;
+use think\console\input\Option;
+use think\console\Output;
+use think\Db;
+
+class Schema extends Command
+{
+    /** @var  Output */
+    protected $output;
+
+    protected function configure()
+    {
+        $this->setName('optimize:schema')
+            ->addOption('table', null, Option::VALUE_REQUIRED, 'Build table schema cache .')
+            ->setDescription('Build database schema cache.');
+    }
+
+    protected function execute(Input $input, Output $output)
+    {
+        if ($input->hasOption('table')) {
+            $tables[] = $input->getOption('table');
+        } else {
+            $tables = Db::getTables();
+        }
+
+        if (!is_dir(RUNTIME_PATH . 'schema')) {
+            @mkdir(RUNTIME_PATH . 'schema', 0755, true);
+        }
+
+        foreach ($tables as $table) {
+            $content = '<?php ' . PHP_EOL . 'return ';
+            $info    = Db::getFields($table);
+            $content .= var_export($info, true) . ';';
+            file_put_contents(RUNTIME_PATH . 'schema' . DS . $table . EXT, $content);
+        }
+
+        $output->writeln('<info>Succeed!</info>');
+    }
+
+}