苗条3和嫩枝 - 从数据库查询

问题描述：

我与苗条3框架和嫩枝模板引擎的工作，我要建一个小型的CMS，允许用户（除其他外）编辑导航菜单。现在，菜单元素基本上都是我存储在名为“categories”的MySQL表中的所有类别，问题是我不知道如何辨别苗条（因为我正在使用它）执行一个查询传递给树枝容器，因为我已经知道，如果我想在所有视图中提供菜单数组，我必须在全局注入它，我只是不知道其中要声明该函数。我见过类似的问题，唯一的答案是如何注入变量，而不是写入函数的位置。我应该只是把它写在dependencies.php里面，并且加上：

use App\Model\Category;

还是有另一种方式？我想编写一个函数，所有的类并将其存储在一个变量，我可以传递给容器全球

routes.php文件

$app->get('/', 'HomeController:index')->setName('homepage'); 
$app->get('brands', 'MainController:index')->setName('all_brands'); 
$app->get('/{category}', 'MainController:single_category'); 
$app->get('/{category}/{brand}', 'MainController:single_showbrand');

dependencies.php

<?php 
// DIC configuration 

$container = $app->getContainer(); 

// view renderer 
$container['renderer'] = function ($c) { 
    $settings = $c->get('settings')['renderer']; 
    return new Slim\Views\PhpRenderer($settings['template_path']); 
}; 

// monolog 
$container['logger'] = function ($c) { 
    $settings = $c->get('settings')['logger']; 
    $logger = new Monolog\Logger($settings['name']); 
    $logger->pushProcessor(new Monolog\Processor\UidProcessor()); 
    $logger->pushHandler(new Monolog\Handler\StreamHandler($settings['path'], $settings['level'])); 
    return $logger; 
}; 

// Twig 
$container['view'] = function ($c) { 
    $view = new \Slim\Views\Twig('templates'); 

    // Instantiate and add Slim specific extension 
    $basePath = rtrim(str_ireplace('index.php', '', $c['request']->getUri()->getBasePath()), '/'); 
    $view->addExtension(new Slim\Views\TwigExtension($c['router'], $basePath)); 
    $view->getEnvironment()->addGlobal('currentUrl',$c->get('request')->getUri()); 

    return $view; 
}; 

// Controllers 
// -- HomeController.php 

$container['HomeController'] = function ($container) { 
return new \App\Controllers\HomeController($container); 
}; 

// -- MainController.php 
$container['MainController'] = function ($container) { 
return new \App\Controllers\MainController($container); 
}; 

// Eloquent Database Injection 

$capsule = new \Illuminate\Database\Capsule\Manager; 
$capsule->addConnection($container['settings']['db']); 
$capsule->setAsGlobal(); 
$capsule->bootEloquent(); 

$container['db'] = function ($container) use ($capsule) { 
    return $capsule; 
}; 

// Validator 

$container['validator'] = function ($container) { 
return new App\Validation\Validator; 

};

文件夹结构

- application 
- Controllers 
    - HomeController.php 
    - MainController.php 
- Models 
    - User.php 
    - Category.php 
    - Brand.php 
- Validation 
- assets 
    - css 
    - js 
    - ... 
- logs 
- node_modules 
    - ... 
    - ... 
- public 
    - index.php 
- src 
    - dependencies.php 
    - middleware.php 
    - routes.php 
    - settings.php 
- templates

显示文件夹树，然后选择路线请。 –

@MattiaDinosaur后编辑 – K3nzie

如果你想伤害数组变量全球范围内，你可以伤害它。 –

答

让我们假设你有一个名为getNestedCategories方法在App\Model\Category这是负责从数据库检索类别。我会叫它设置树枝一个全局变量，如果要设置其他的全局变量currentUrl，这意味着在dependencies.php，是这样的：

// Twig 
$container['view'] = function ($c) { 
    $view = new \Slim\Views\Twig('templates'); 

    // Instantiate and add Slim specific extension 
    $basePath = rtrim(str_ireplace('index.php', '', $c['request']->getUri()->getBasePath()), '/'); 
    $view->addExtension(new Slim\Views\TwigExtension($c['router'], $basePath)); 
    $view->getEnvironment()->addGlobal('currentUrl',$c->get('request')->getUri()); 
    // Add categories 
    $view->getEnfironment()->addGlobal('categories',(new \App\Model\Category)->getNestedCategories()); 

    return $view; 
};

苗条3和嫩枝 - 从数据库查询

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