illuminate/database 使用 二
上一篇文章写怎么单独使用illuminate/database，这回讲下怎么整合到项目里使用。为此特意看了下laravel对其使用。本篇文章，参照laravel的使用，简单实现。
一 原理
laravel 里使用illuminate/config。
illuminate/config composer 地址：illuminate/config - Packagist
illuminate/config github 地址:GitHub - illuminate/config: [READ ONLY] Subtree split of the Illuminate Config component (see laravel/framework)
根据 illuminate/config 源码显示 illuminate/config/Repository.php 仅继承Illuminate\Contracts\Config\Repository，没有其他操作。
所以编写Myconfig.php相同代码，没有加入 illuminate/config。也可以直接执行命令添加。
composer require illuminate/config:版本通过查看laravel源码，发现先加入容器，再重写容器中绑定的对象。
之所以不能直接绑定操作后的对象，因为bind()、bindIf()等相关方法中，被绑定的数据不能传对象，而instance()没有此限制，所以能传设置参数后的对象。
数据库管理对象构造传入容器对象，会自动获取config对应参数。之后可以直接查询。
例子里对于设置容器后，处理配置文件的流程与laravel不同。laravel中更复杂也更完善。
二 代码
目录结构
- test.php
- config/database.php
- Myconfig.php
//test.php
require_once './vendor/autoload.php';
require_once './Myconfig.php';
use Illuminate\Container\Container;
use Illuminate\Database\Capsule\Manager as DbManager;
use Illuminate\Events\Dispatcher;
class Loader
{
private $container;
public function __construct(Container $container)
{
$this->container = $container;
$this->makes();
}
private function get_makes_list()
{
$list = [
'config' => Myconfig::class,
];
return $list;
}
private function makes()
{
$list = $this->get_makes_list();
foreach ($list as $key => $value) {
$this->container->bindIf($key, $value);
}
}
public function get_path_list($name)
{
$list = [
'config' => "./config",
];
return $list[$name] ? $list[$name] : false;
}
}
class App
{
private $container;
private $loader;
public function __construct()
{
$this->container = new Container();
$this->loader = new Loader($this->container);
$this->init();
}
public function init()
{
$this->init_config();
$this->init_db();
}
private function init_config()
{
$config_list = [];
$config_path = $this->loader->get_path_list('config');
if ($files_list = opendir($config_path)) {
while (($file = readdir($files_list)) != false) {
if (!preg_match('/(.*).php/', $file, $matches)) {
continue;
}
$data = include $config_path . "/" . $file;
if (!is_array($data)) {
continue;
}
$file_name = $matches[1];
foreach ($data as $key => $value) {
$list_key = $file_name . "." . $key;
$config_list[$list_key] = $value;
}
}
}
if (!empty($config_list)) {
$myconfig = new Myconfig($config_list);
$this->container->instance('config', $myconfig);
}
}
private function init_db()
{
$dbm = new DbManager($this->container);
$dbm->setEventDispatcher(new Dispatcher(new Container));
$dbm->setAsGlobal(); //设置静态全局可用
$dbm->bootEloquent();
}
}
function test()
{
new App();
$info = DbManager::table('userinfo')->where('id', '=', 2)->get();
var_dump($info);
}
test();
//./config/database.php
return [
'migrations' => '', //数据迁移
//PDO文档 https://www.php.net/manual/zh/pdo.constants.php
'fetch' => PDO::FETCH_OBJ,
'default' => 'master',
'connections' => [
'master' => [
'driver' => 'mysql',
'host' => 'localhost',
'database' => 'test',
'username' => 'root',
'password' => 'qwe110110',
'charset' => 'utf8',
'collation' => 'utf8_general_ci',
'prefix' => '',
],
'test' => [
"driver" => "mysql",
"host" => "127.0.0.1",
"database" => "brook3_master",
"username" => "root",
"password" => "root",
'charset' => 'utf8mb4',
'collation' => 'utf8mb4_unicode_ci',
'prefix' => '',
],
],
];
//./Myconfig.php
use Illuminate\Contracts\Config\Repository as ConfigContract;
use Illuminate\Support\Arr;
class Myconfig implements ConfigContract, ArrayAccess
{
/**
* All of the configuration items.
*
* @var array
*/
protected $items = [];
/**
* Create a new configuration repository.
*
* @param array $items
* @return void
*/
public function __construct(array $items = [])
{
$this->items = $items;
}
/**
* Determine if the given configuration value exists.
*
* @param string $key
* @return bool
*/
public function has($key)
{
return Arr::has($this->items, $key);
}
/**
* Get the specified configuration value.
*
* @param array|string $key
* @param mixed $default
* @return mixed
*/
public function get($key, $default = null)
{
if (is_array($key)) {
return $this->getMany($key);
}
return Arr::get($this->items, $key, $default);
}
/**
* Get many configuration values.
*
* @param array $keys
* @return array
*/
public function getMany($keys)
{
$config = [];
foreach ($keys as $key => $default) {
if (is_numeric($key)) {
[$key, $default] = [$default, null];
}
$config[$key] = Arr::get($this->items, $key, $default);
}
return $config;
}
/**
* Set a given configuration value.
*
* @param array|string $key
* @param mixed $value
* @return void
*/
public function set($key, $value = null)
{
$keys = is_array($key) ? $key : [$key => $value];
foreach ($keys as $key => $value) {
Arr::set($this->items, $key, $value);
}
}
/**
* Prepend a value onto an array configuration value.
*
* @param string $key
* @param mixed $value
* @return void
*/
public function prepend($key, $value)
{
$array = $this->get($key, []);
array_unshift($array, $value);
$this->set($key, $array);
}
/**
* Push a value onto an array configuration value.
*
* @param string $key
* @param mixed $value
* @return void
*/
public function push($key, $value)
{
$array = $this->get($key, []);
$array[] = $value;
$this->set($key, $array);
}
/**
* Get all of the configuration items for the application.
*
* @return array
*/
public function all()
{
return $this->items;
}
/**
* Determine if the given configuration option exists.
*
* @param string $key
* @return bool
*/
#[\ReturnTypeWillChange]
public function offsetExists($key)
{
return $this->has($key);
}
/**
* Get a configuration option.
*
* @param string $key
* @return mixed
*/
#[\ReturnTypeWillChange]
public function offsetGet($key)
{
return $this->get($key);
}
/**
* Set a configuration option.
*
* @param string $key
* @param mixed $value
* @return void
*/
#[\ReturnTypeWillChange]
public function offsetSet($key, $value)
{
$this->set($key, $value);
}
/**
* Unset a configuration option.
*
* @param string $key
* @return void
*/
#[\ReturnTypeWillChange]
public function offsetUnset($key)
{
$this->set($key, null);
}
}