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How to convert from Laravel to Ruby on Rails

If you are proficient in Laravel and looking to transition your project to Ruby on Rails, it can seem like a daunting task initially. However, understanding the key differences and similarities between these frameworks can make the process smoother. Here, we will guide you through the essential steps and considerations for converting a Laravel application to Ruby on Rails.

Understanding the Key Differences Between Laravel and Ruby on Rails

Before diving into the technical conversion steps, it’s essential to understand the foundational differences:

Language: Laravel is PHP-based, while Ruby on Rails (RoR) is Ruby-based.
Convention Over Configuration: Both follow this principle, but Rails enforces conventions more strictly.
Routing: Routing syntax and conventions differ significantly.
Directory Structure: Laravel and Rails follow different directory structures and naming conventions.

Setting Up Your Rails Environment

Firstly, you need to set up your Rails environment. Ensure you have Ruby and Rails installed.

# Install Ruby using a version manager like RVM or rbenv
\curl -sSL https://get.rvm.io | bash -s stable --ruby

# Install Rails
gem install rails

Scaffold a New Rails Application

Create a new Rails application much like you would start a new Laravel project.

rails new MyRailsApp
cd MyRailsApp

Converting the Directory Structure

Let’s map out how Laravel’s directory structure translates to Rails. Here's a simple table showing the equivalence:

Laravel	Rails
app/	app/
app/Http/	app/controllers/
app/Models/	app/models/
app/Views/	app/views/
routes/web.php	config/routes.rb
config/	config/
database/migrations	db/migrate/
resources/views	app/views/
public/	public/

Migrating Models

Models in Laravel reside in app/Models and extend Illuminate\Database\Eloquent\Model. In Rails, models go in app/models and extend ActiveRecord::Base.

Laravel Model Example:

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Post extends Model
{
    protected $fillable = ['title', 'content'];
}

Rails Model Equivalent:

class Post < ActiveRecord::Base
  validates :title, presence: true
  validates :content, presence: true
end

Migrating Routes

Laravel routes are defined in routes/web.php using methods like Route::get. Rails routes are defined in config/routes.rb.

Laravel Routes Example:

Route::get('posts', [PostController::class, 'index']);
Route::post('posts', [PostController::class, 'store']);

Rails Route Equivalent:

Rails.application.routes.draw do
  resources :posts, only: [:index, :create]
end

Migrating Controllers

In Laravel, controllers are stored in app/Http/Controllers. In Rails, they go in app/controllers.

Laravel Controller Example:

<?php

namespace App\Http\Controllers;

use App\Models\Post;

class PostController extends Controller
{
    public function index()
    {
        return view('posts.index', ['posts' => Post::all()]);
    }
    
    public function store(Request $request)
    {
        Post::create($request->all());
        return redirect()->route('posts.index');
    }
}

Rails Controller Equivalent:

class PostsController < ApplicationController
  def index
    @posts = Post.all
  end
  
  def create
    Post.create(post_params)
    redirect_to posts_path
  end
  
  private

  def post_params
    params.require(:post).permit(:title, :content)
  end
end

Migrating Views

Laravel views are Blade templating files located in resources/views. Rails views use ERB or other templating languages and are located in app/views.

Laravel Blade View Example:

@foreach ($posts as $post)
    <h2>{{ $post->title }}</h2>
    <p>{{ $post->content }}</p>
@endforeach

Rails ERB View Equivalent:

<% @posts.each do |post| %>
  <h2><%= post.title %></h2>
  <p><%= post.content %></p>
<% end %>

Handling Migrations

Laravel migrations are located in database/migrations. Rails migrations go in db/migrate.

Laravel Migration Example:

Schema::create('posts', function (Blueprint $table) {
    $table->id();
    $table->string('title');
    $table->text('content');
    $table->timestamps();
});

Rails Migration Equivalent:

class CreatePosts < ActiveRecord::Migration[6.1]
  def change
    create_table :posts do |t|
      t.string :title
      t.text :content

      t.timestamps
    end
  end
end

Conclusion

Transitioning from Laravel to Ruby on Rails requires understanding both systems' core philosophies and components. While this guide provides a foundation, your specific project needs may require more detailed adjustments. By focusing on individual aspects like models, controllers, views, and routing, you can incrementally convert your Laravel application to Ruby on Rails efficiently.

Free Laravel to Ruby on Rails Code Converter: As you embark on this transition, having a solid understanding and a step-by-step approach will be invaluable. Consider automating parts of the conversion process to save time and reduce the potential for errors.

Frequently Asked Questions

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