<?php namespace Illuminate\Validation; use Illuminate\Support\ServiceProvider; // just namespace class ValidationServiceProvider extends ServiceProvider {// a class extends a standard class /** * Indicates if loading of the provider is deferred. * * @var bool */ protected $defer = true;// Indicates if loading of the provider is deferred. /** * Register the service provider. * * @return void */ public function register() { $this->registerPresenceVerifier();// register Presence Verifier $this->registerValidationFactory();// register validation Factory }// Register the service provider. /** * Register the validation factory. * * @return void */ protected function registerValidationFactory() { $this->app->singleton('validator', function ($app) { $validator = new Factory($app['translator'], $app);// get instance of the // The validation presence verifier is responsible for determining the existence // of values in a given data collection, typically a relational database or // other persistent data stores. And it is used to check for uniqueness. if (isset($app['validation.presence'])) {// has it $validator->setPresenceVerifier($app['validation.presence']);//and set it }// if has a other way to get it return $validator;// return it });// set the singleton }// Register the validation factory. /** * Register the database presence verifier. * * @return void */ protected function registerPresenceVerifier() { $this->app->singleton('validation.presence', function ($app) { return new DatabasePresenceVerifier($app['db']); });// like set a singleton }//Register the database presence verifier. /** * Get the services provided by the provider. * * @return array */ public function provides() { return [ 'validator', 'validation.presence', ]; }// get return }
[李景山php]每天laravel-20161001|ValidationServiceProvider.php
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