📘 Module 5: Product Management (CRUD)

CRUD operations සඳහා අවශ්‍ය Model, Controller, සහ Routes සකස් කරගනිමු.

පළමුව, Product Model එක සාදමු.

php artisan make:model Product

දෙවනුව, Product සඳහා වන Resource Controller එකක් සාදමු.

php artisan make:controller ProductController --resource

අවසාන වශයෙන්, routes/web.php file එකේ routes define කිරීමට Route::resource භාවිතා කරමු.

File: routes/web.php

use App\Http\Controllers\ProductController;
// ... other use statements

// Add this line for product routes
Route::resource('products', ProductController::class)->middleware(['auth', 'verified']);
            

middleware(['auth']) යෙදීමෙන්, login වූ user කෙනෙකුට පමණක් මෙම product pages වලට access කිරීමට හැකි බව අපි තහවුරු කරමු.

දැන් අපි සියලුම products පෙන්වන page එක සහ නව product එකක් එකතු කරන form එක සාදමු.

Controller Logic: app/Http/Controllers/ProductController.php

// Inside ProductController.php
use App\Models\Product; // Import the Product model

public function index()
{
    $products = Product::all(); // Get all products from the database
    return view('products.index', compact('products'));
}

public function create()
{
    return view('products.create');
}
            

---

List Products View: resources/views/products/index.blade.php

@extends('layouts.app')

@section('content')
<div class="container">
    <h1>Products</h1>
    <a href="{{ route('products.create') }}" class="btn btn-primary mb-3">Add New Product</a>

    <table class="table table-bordered">
        <thead>
            <tr>
                <th>ID</th>
                <th>Name</th>
                <th>Price</th>
                <th>Quantity</th>
                <th>Actions</th>
            </tr>
        </thead>
        <tbody>
            @foreach ($products as $product)
            <tr>
                <td>{{ $product->id }}</td>
                <td>{{ $product->name }}</td>
                <td>{{ $product->price }}</td>
                <td>{{ $product->quantity }}</td>
                <td>
                    <!-- Action buttons will go here -->
                </td>
            </tr>
            @endforeach
        </tbody>
    </table>
</div>
@endsection
            

දැන් අපි product එකක් save කිරීමට, update කිරීමට, සහ delete කිරීමට අවශ්‍ය logic සහ views සකස් කරමු.

Controller Logic: ProductController.php

// Inside ProductController.php
use Illuminate\Http\Request; // Import Request class

// ... index() and create() methods ...

public function store(Request $request)
{
    $request->validate([
        'name' => 'required',
        'price' => 'required|numeric',
        'quantity' => 'required|integer',
    ]);

    Product::create($request->all());
    return redirect()->route('products.index');
}

// ... other methods ...

public function update(Request $request, Product $product)
{
    $request->validate([
        'name' => 'required',
        'price' => 'required|numeric',
        'quantity' => 'required|integer',
    ]);

    $product->update($request->all());
    return redirect()->route('products.index');
}

public function destroy(Product $product)
{
    $product->delete();
    return redirect()->route('products.index');
}
            

Mass Assignment: Product::create() වැඩ කිරීමට, app/Models/Product.php model එකේ $fillable property එක define කළ යුතුය.

// Inside Product.php model
protected $fillable = ['name', 'price', 'quantity'];