Add source

lesson-01-measuring-your-database-performance/.editorconfig

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+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+indent_size = 4
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[*.{yml,yaml}]
+indent_size = 2

lesson-01-measuring-your-database-performance/.env.example

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+APP_NAME=Laravel
+APP_ENV=local
+APP_KEY=
+APP_DEBUG=true
+APP_URL=http://localhost
+
+LOG_CHANNEL=stack
+
+DB_CONNECTION=mysql
+DB_HOST=127.0.0.1
+DB_PORT=3306
+DB_DATABASE=laravel
+DB_USERNAME=root
+DB_PASSWORD=
+
+BROADCAST_DRIVER=log
+CACHE_DRIVER=file
+QUEUE_CONNECTION=sync
+SESSION_DRIVER=file
+SESSION_LIFETIME=120
+
+REDIS_HOST=127.0.0.1
+REDIS_PASSWORD=null
+REDIS_PORT=6379
+
+MAIL_MAILER=smtp
+MAIL_HOST=smtp.mailtrap.io
+MAIL_PORT=2525
+MAIL_USERNAME=null
+MAIL_PASSWORD=null
+MAIL_ENCRYPTION=null
+MAIL_FROM_ADDRESS=null
+MAIL_FROM_NAME="${APP_NAME}"
+
+AWS_ACCESS_KEY_ID=
+AWS_SECRET_ACCESS_KEY=
+AWS_DEFAULT_REGION=us-east-1
+AWS_BUCKET=
+
+PUSHER_APP_ID=
+PUSHER_APP_KEY=
+PUSHER_APP_SECRET=
+PUSHER_APP_CLUSTER=mt1
+
+MIX_PUSHER_APP_KEY="${PUSHER_APP_KEY}"
+MIX_PUSHER_APP_CLUSTER="${PUSHER_APP_CLUSTER}"

lesson-01-measuring-your-database-performance/.gitattributes

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+* text=auto
+*.css linguist-vendored
+*.scss linguist-vendored
+*.js linguist-vendored
+CHANGELOG.md export-ignore

lesson-01-measuring-your-database-performance/.gitignore

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+/node_modules
+/public/hot
+/public/storage
+/storage/*.key
+/vendor
+.env
+.env.backup
+.phpunit.result.cache
+Homestead.json
+Homestead.yaml
+npm-debug.log
+yarn-error.log

lesson-01-measuring-your-database-performance/.php_cs.dist

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+<?php
+
+// Reference: http://cs.sensiolabs.org/
+
+return PhpCsFixer\Config::create()
+    ->setUsingCache(false)
+    ->setRiskyAllowed(true)
+    ->setRules([
+        '@PHP70Migration' => true,
+        '@PHP71Migration' => true,
+        '@PSR2' => true,
+        '@Symfony' => true,
+        'array_syntax' => ['syntax' => 'short'],
+        'increment_style' => ['style' => 'post'],
+        'no_multiline_whitespace_before_semicolons' => true,
+        'not_operator_with_successor_space' => true,
+        'ordered_imports' => ['sortAlgorithm' => 'alpha'],
+        'semicolon_after_instruction' => false,
+        'strict_comparison' => true,
+        'yoda_style' => false,
+    ]);

lesson-01-measuring-your-database-performance/.styleci.yml

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+php:
+  preset: laravel
+  disabled:
+    - unused_use
+  finder:
+    not-name:
+      - index.php
+      - server.php
+js:
+  finder:
+    not-name:
+      - webpack.mix.js
+css: true

lesson-01-measuring-your-database-performance/README.md

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+# How to
+
+## Vendor differences
+
+In some lessons, the source code is slightly different, depending on the database type (MySQL, Postgres and SQLite). When this happens, you'll see a database driver check in the source code that looks something like this:
+
+```php
+if (config('database.default') === 'pgsql') {
+    // ...
+}
+```
+
+In some cases, it's not possible to create variations for all three database types, and an exception will be thrown instead.
+
+```php
+if (config('database.default') === 'sqlite') {
+    throw new \Exception('This lesson does not support SQLite.');
+}
+```
+
+## Installation
+
+To test this demo application, please follow these instructions.
+
+First, go to the lesson's source code directory.
+
+Next, install the PHP vendor dependencies using [Composer](https://getcomposer.org/):
+
+```sh
+composer install
+```
+
+Next, copy the example configuration. You can do this from the command line, or by simply copying the `.env.example` file and saving it as `.env`.
+
+```sh
+cp .env.example .env
+```
+
+Next, generate an application key by running the `key:generate` Artisan command:
+
+```sh
+php artisan key:generate
+```
+
+Next, you'll need to configure a database. You can use the MySQL, Postgres, or SQLite drivers. To do this, update the `DB_CONNECTION` value in your `.env` file:
+
+```bash
+DB_CONNECTION=mysql  # MySQL
+DB_CONNECTION=pgsql  # Postgres
+DB_CONNECTION=sqlite # SQLite
+```
+
+You will likely also need to edit the other database connection values as needed for your system, such as the database host (`DB_HOST`), database port (`DB_PORT`), database name (`DB_DATABASE`), database user (`DB_USERNAME`) and database password (`DB_PASSWORD`).
+
+If you're using SQLite, you can generate an SQLite database file by running the following command:
+
+```bash
+touch database/database.sqlite
+```
+
+Be sure to see the [database section](https://laravel.com/docs/database) of the Laravel documentation if you're having trouble establishing a database connection.
+
+Once your database connection has been setup, run the database migrations:
+
+```sh
+php artisan migrate
+```
+
+Next, run the database seeder to populate the database with some sample data:
+
+```sh
+php artisan db:seed
+```
+
+Now you're ready to go!
+
+If you're using [Laravel Valet](https://laravel.com/docs/valet), [Laravel Homestead](https://laravel.com/docs/valet), or some other local development environment, view your website there as you normally would. Alternatively, you can also use the built-in PHP server:
+
+```sh
+php artisan serve
+```
+
+This command will output an address where you can then view the site.
+
+Enjoy! 😊

lesson-01-measuring-your-database-performance/app/Company.php

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+<?php
+
+namespace App;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Company extends Model
+{
+    public function users()
+    {
+        return $this->hasMany(User::class);
+    }
+}

lesson-01-measuring-your-database-performance/app/Console/Kernel.php

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+<?php
+
+namespace App\Console;
+
+use Illuminate\Console\Scheduling\Schedule;
+use Illuminate\Foundation\Console\Kernel as ConsoleKernel;
+
+class Kernel extends ConsoleKernel
+{
+    /**
+     * The Artisan commands provided by your application.
+     *
+     * @var array
+     */
+    protected $commands = [
+        //
+    ];
+
+    /**
+     * Define the application's command schedule.
+     *
+     * @param  \Illuminate\Console\Scheduling\Schedule  $schedule
+     * @return void
+     */
+    protected function schedule(Schedule $schedule)
+    {
+        // $schedule->command('inspire')->hourly();
+    }
+
+    /**
+     * Register the commands for the application.
+     *
+     * @return void
+     */
+    protected function commands()
+    {
+        $this->load(__DIR__.'/Commands');
+
+        require base_path('routes/console.php');
+    }
+}

lesson-01-measuring-your-database-performance/app/Exceptions/Handler.php

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+<?php
+
+namespace App\Exceptions;
+
+use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;
+use Throwable;
+
+class Handler extends ExceptionHandler
+{
+    /**
+     * A list of the exception types that are not reported.
+     *
+     * @var array
+     */
+    protected $dontReport = [
+        //
+    ];
+
+    /**
+     * A list of the inputs that are never flashed for validation exceptions.
+     *
+     * @var array
+     */
+    protected $dontFlash = [
+        'password',
+        'password_confirmation',
+    ];
+
+    /**
+     * Report or log an exception.
+     *
+     * @param  \Throwable  $exception
+     * @return void
+     *
+     * @throws \Exception
+     */
+    public function report(Throwable $exception)
+    {
+        parent::report($exception);
+    }
+
+    /**
+     * Render an exception into an HTTP response.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  \Throwable  $exception
+     * @return \Symfony\Component\HttpFoundation\Response
+     *
+     * @throws \Throwable
+     */
+    public function render($request, Throwable $exception)
+    {
+        return parent::render($request, $exception);
+    }
+}

lesson-01-measuring-your-database-performance/app/Http/Controllers/Controller.php

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+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
+use Illuminate\Foundation\Bus\DispatchesJobs;
+use Illuminate\Foundation\Validation\ValidatesRequests;
+use Illuminate\Routing\Controller as BaseController;
+
+class Controller extends BaseController
+{
+    use AuthorizesRequests, DispatchesJobs, ValidatesRequests;
+}

lesson-01-measuring-your-database-performance/app/Http/Controllers/UsersController.php

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+<?php
+
+namespace App\Http\Controllers;
+
+use App\User;
+
+class UsersController extends Controller
+{
+    public function index()
+    {
+        $users = User::query()
+            ->with('company')
+            ->orderBy('name')
+            ->simplePaginate();
+
+        return view('users', ['users' => $users]);
+    }
+}