Pages and form validation for Laravel 4
This article mainly introduces Pages and form validation about Laravel 4. It has certain reference value. Now I share it with you. Friends in need can refer to it.
This tutorial is the end of this series. In this article, what we need to do is the detailed management functions of Pages, form validation and in-depth use of namespaces, and a better-use notification component, and arrange a simple big job.
1. Build Pages management function
Run command:
php artisan generate:controller admin/PagesController
Modify PagesController.php content:
<?php
namespace App\Controllers\Admin;
use Page;
use Input, Notification, Redirect, Sentry, Str;
use App\Services\Validators\PageValidator;
class PagesController extends \BaseController {
public function index()
{
return \View::make('admin.pages.index')->with('pages', Page::all());
}
public function show($id)
{
return \View::make('admin.pages.show')->with('page', Page::find($id))->withAuthor(Sentry::findUserById(Page::find($id)->user_id)->name);
}
public function create()
{
return \View::make('admin.pages.create');
}
public function store()
{
$validation = new PageValidator;
if ($validation->passes())
{
$page = new Page;
$page->title = Input::get('title');
$page->body = Input::get('body');
$page->user_id = Sentry::getUser()->id;
$page->save();
Notification::success('新增页面成功！');
return Redirect::route('admin.pages.edit', $page->id);
}
return Redirect::back()->withInput()->withErrors($validation->errors);
}
public function edit($id)
{
return \View::make('admin.pages.edit')->with('page', Page::find($id));
}
public function update($id)
{
$validation = new PageValidator;
if ($validation->passes())
{
$page = Page::find($id);
$page->title = Input::get('title');
$page->body = Input::get('body');
$page->user_id = Sentry::getUser()->id;
$page->save();
Notification::success('更新页面成功！');
return Redirect::route('admin.pages.edit', $page->id);
}
return Redirect::back()->withInput()->withErrors($validation->errors);
}
public function destroy($id)
{
$page = Page::find($id);
$page->delete();
Notification::success('删除成功！');
return Redirect::route('admin.pages.index');
}
}Then, open http://localhost:8000/admin page, log in with the account and password that was seeded before, we will get an error:
Class App\Controllers\Admin\PagesController does not exist
This file obviously already exists, why does Laravel report an error saying it does not exist? ! The reason is in the second tutorial, so I will explain it directly here. Because this class is not in the top-level namespace, and we did not tell Laravel that we have added a new class in the sub-namespace. Let’s tell it now:
composer dump-autoload
OK, refresh, we will get the following error again:
View [admin.pages.index] not found.
At this time, copy the entire pages folder in my view.
refresh. You will get the following error:
Class 'Notification' not found
This is because we have not installed the composer package, edvinaskrucas/notification, please install version 3.0.1 yourself (4 is prepared for Laravel 5), this is the third one Small homework. It must be placed in require. The packages in require-dev are only used during development.
The Notification here is the more useful notification component.
After this is packaged, run:
composer dump-autoload
Then add the following two lines at the appropriate location in config/app.php:
'Krucas\Notification\NotificationServiceProvider'
'Notification' => 'Krucas\Notification\Facades\Notification'
Appropriate location Many people don't understand, which leads to many people making mistakes. The solution is also very simple.
Refresh, if you see the following interface:
Congratulations~ The management page of Pages is completed!
2. Form Validation
Laravel provides a native and very easy-to-use form validation function, but sometimes validation rules need to be reused, so we will use the powerful Namespaces are used to achieve code reuse, and at the same time, it will demonstrate the powerful componentization functions and module decoupling brought by PHP namespaces outside of Laravel. HMVC has fallen behind.
Create a new app/services/validators two-level folder, and add it in composer.json's autoload > classmap at the end:
"app/services"
This is telling composer: Come and add all the following to me Merge all files in files and subfolders into your namespace tree! This allows classes under app/services to declare their own namespace, and files in subfolders can also declare that they belong to the subnamespace. This folder will host our form validation cluster, and of course many other components and modules, allowing for complete decoupling.
After the addition is completed, create a new app/services/validators/Validator.php file:
<?php
namespace App\Services\Validators;
abstract class Validator {
protected $data;
public $errors;
public static $rules;
public function __construct($data = null)
{
$this->data = $data ?: \Input::all();
}
public function passes()
{
$validation = \Validator::make($this->data, static::$rules);
if ($validation->passes()) return true;
$this->errors = $validation->messages();
return false;
}
}Create a new app/services/validators/PageValidator.php file:
<?php
namespace App\Services\Validators;
class PageValidator extends Validator {
public static $rules = array(
'title' => 'required',
'body' => 'required',
);
}Then run :
composer dump-autoload
At this time, you can try all the operations on the entire page! Create, edit, view, delete. At this point, the pages management part is complete!
Big job: At present, the Pages management part has been completed, but the Articles management part still has nothing. Try to imitate the code of Pages and complete a management system like Pages. Tip: Include controller, view and form validation. Once you have completed the Articles management part, you will really get started with Laravel!
The above is the entire content of this article. I hope it will be helpful to everyone's study. For more related content, please pay attention to the PHP Chinese website!
Related recommendations:
Use Laravel to generate Gravatar avatar address
How to solve the problem of Laravel's throttle middleware failure
How to use the mb_detect_encoding function in PHP
##
The above is the detailed content of Pages and form validation for Laravel 4. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1657
14
1415
52
1309
25
1257
29
1230
24
Laravel Eloquent ORM in Bangla partial model search)
Apr 08, 2025 pm 02:06 PM
LaravelEloquent Model Retrieval: Easily obtaining database data EloquentORM provides a concise and easy-to-understand way to operate the database. This article will introduce various Eloquent model search techniques in detail to help you obtain data from the database efficiently. 1. Get all records. Use the all() method to get all records in the database table: useApp\Models\Post;$posts=Post::all(); This will return a collection. You can access data using foreach loop or other collection methods: foreach($postsas$post){echo$post->
Laravel Introduction Example
Apr 18, 2025 pm 12:45 PM
Laravel is a PHP framework for easy building of web applications. It provides a range of powerful features including: Installation: Install the Laravel CLI globally with Composer and create applications in the project directory. Routing: Define the relationship between the URL and the handler in routes/web.php. View: Create a view in resources/views to render the application's interface. Database Integration: Provides out-of-the-box integration with databases such as MySQL and uses migration to create and modify tables. Model and Controller: The model represents the database entity and the controller processes HTTP requests.
Solve caching issues in Craft CMS: Using wiejeben/craft-laravel-mix plug-in
Apr 18, 2025 am 09:24 AM
When developing websites using CraftCMS, you often encounter resource file caching problems, especially when you frequently update CSS and JavaScript files, old versions of files may still be cached by the browser, causing users to not see the latest changes in time. This problem not only affects the user experience, but also increases the difficulty of development and debugging. Recently, I encountered similar troubles in my project, and after some exploration, I found the plugin wiejeben/craft-laravel-mix, which perfectly solved my caching problem.
Laravel user login function
Apr 18, 2025 pm 12:48 PM
Laravel provides a comprehensive Auth framework for implementing user login functions, including: Defining user models (Eloquent model), creating login forms (Blade template engine), writing login controllers (inheriting Auth\LoginController), verifying login requests (Auth::attempt) Redirecting after login is successful (redirect) considering security factors: hash passwords, anti-CSRF protection, rate limiting and security headers. In addition, the Auth framework also provides functions such as resetting passwords, registering and verifying emails. For details, please refer to the Laravel documentation: https://laravel.com/doc
Laravel framework installation method
Apr 18, 2025 pm 12:54 PM
Article summary: This article provides detailed step-by-step instructions to guide readers on how to easily install the Laravel framework. Laravel is a powerful PHP framework that speeds up the development process of web applications. This tutorial covers the installation process from system requirements to configuring databases and setting up routing. By following these steps, readers can quickly and efficiently lay a solid foundation for their Laravel project.
Laravel's geospatial: Optimization of interactive maps and large amounts of data
Apr 08, 2025 pm 12:24 PM
Efficiently process 7 million records and create interactive maps with geospatial technology. This article explores how to efficiently process over 7 million records using Laravel and MySQL and convert them into interactive map visualizations. Initial challenge project requirements: Extract valuable insights using 7 million records in MySQL database. Many people first consider programming languages, but ignore the database itself: Can it meet the needs? Is data migration or structural adjustment required? Can MySQL withstand such a large data load? Preliminary analysis: Key filters and properties need to be identified. After analysis, it was found that only a few attributes were related to the solution. We verified the feasibility of the filter and set some restrictions to optimize the search. Map search based on city
Laravel and the Backend: Powering Web Application Logic
Apr 11, 2025 am 11:29 AM
How does Laravel play a role in backend logic? It simplifies and enhances backend development through routing systems, EloquentORM, authentication and authorization, event and listeners, and performance optimization. 1. The routing system allows the definition of URL structure and request processing logic. 2.EloquentORM simplifies database interaction. 3. The authentication and authorization system is convenient for user management. 4. The event and listener implement loosely coupled code structure. 5. Performance optimization improves application efficiency through caching and queueing.
How to learn Laravel How to learn Laravel for free
Apr 18, 2025 pm 12:51 PM
Want to learn the Laravel framework, but suffer from no resources or economic pressure? This article provides you with free learning of Laravel, teaching you how to use resources such as online platforms, documents and community forums to lay a solid foundation for your PHP development journey from getting started to master.
