Merge pull request #39 from phi-rakib/29-implement-crud-operations-fo…

…r-products

29 implement crud operations for products

app/Http/Controllers/ProductController.php

@@ -0,0 +1,75 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Http\Requests\StoreProductRequest;
+use App\Models\Price;
+use App\Models\Product;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Gate;
+
+class ProductController extends Controller
+{
+    public function index()
+    {
+        Gate::authorize('viewAny', Product::class);
+
+        return Product::latest()->with(['category', 'brand', 'unitType', 'warehouses', 'creator'])->paginate(20);
+    }
+
+    public function show(Product $product)
+    {
+        Gate::authorize('view', $product);
+
+        return $product->load(['category', 'brand', 'unitType', 'warehouses', 'creator', 'latestPrice', 'prices', 'attributes']);
+    }
+
+    public function store(StoreProductRequest $request)
+    {
+        Gate::authorize('create', Product::class);
+
+        DB::transaction(function () use ($request) {
+            $product = Product::create($request->validated());
+
+            $product->prices()->create(['price' => $request->price]);
+
+            $product->attributes()->attach($request->input('attributes'));
+        });
+
+        return response()->json(['message' => 'Product created successfully'], 201);
+    }
+
+    public function update(StoreProductRequest $request, Product $product)
+    {
+        Gate::authorize('update', $product);
+
+        DB::transaction(function () use ($request, $product) {
+            $product->update($request->validated());
+
+            $product->attributes()->sync($request->input('attributes'));
+
+            $latestPrice = $product->latestPrice;
+
+            if ($latestPrice == null || $latestPrice->price != $request->input('price')) {
+                Price::create([
+                    'product_id' => $product->id,
+                    'price' => $request->input('price'),
+                ]);
+            }
+        });
+
+        return response()->json(['message' => 'Product updated successfully'], 200);
+    }
+
+    public function destroy(Product $product)
+    {
+        Gate::authorize('delete', $product);
+
+        $product->deleted_by = auth()->id();
+        $product->save();
+
+        $product->delete();
+
+        return response()->json(['message' => 'Product deleted successfully'], 204);
+    }
+}

app/Http/Requests/StoreProductRequest.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Support\Facades\Auth;
+
+class StoreProductRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return Auth::check();
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
+     */
+    public function rules(): array
+    {
+        return [
+            'category_id' => 'required|integer|exists:categories,id',
+            'brand_id' => 'required|integer|exists:brands,id',
+            'unit_type_id' => 'required|integer|exists:unit_types,id',
+            'name' => 'required|max:255',
+            'description' => 'nullable',
+            'price' => 'required|numeric',
+            'attributes' => 'array',
+        ];
+    }
+}

app/Models/Brand.php

@@ -31,4 +31,9 @@ public function deleter()
     {
         return $this->belongsTo(User::class, 'deleted_by')->select(['id', 'name']);
     }
+
+    public function products()
+    {
+        return $this->hasMany(Product::class);
+    }
 }

app/Models/Category.php

@@ -28,4 +28,9 @@ public function deleter()
     {
         return $this->belongsTo(User::class, 'deleted_by')->select(['id', 'name']);
     }
+
+    public function products()
+    {
+        return $this->hasMany(Product::class);
+    }
 }

app/Models/Price.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Price extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'price',
+        'product_id',
+    ];
+
+    public function product()
+    {
+        return $this->belongsTo(Product::class);
+    }
+}

app/Models/Product.php

@@ -0,0 +1,71 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Product extends Model
+{
+    use HasFactory, SoftDeletes;
+
+    protected $fillable = [
+        'name',
+        'description',
+        'image',
+        'category_id',
+        'brand_id',
+        'unit_type_id',
+    ];
+
+    public function category()
+    {
+        return $this->belongsTo(Category::class)->select(['id', 'name']);
+    }
+
+    public function brand()
+    {
+        return $this->belongsTo(Brand::class)->select(['id', 'name']);
+    }
+
+    public function unitType()
+    {
+        return $this->belongsTo(UnitType::class)->select(['id', 'name']);
+    }
+
+    public function creator()
+    {
+        return $this->belongsTo(User::class, 'created_by')->select(['id', 'name']);
+    }
+
+    public function updater()
+    {
+        return $this->belongsTo(User::class, 'updated_by')->select(['id', 'name']);
+    }
+
+    public function deleter()
+    {
+        return $this->belongsTo(User::class, 'deleted_by')->select(['id', 'name']);
+    }
+
+    public function warehouses()
+    {
+        return $this->belongsToMany(Warehouse::class)->withPivot(['quantity']);
+    }
+
+    public function prices()
+    {
+        return $this->hasMany(Price::class);
+    }
+
+    public function latestPrice()
+    {
+        return $this->hasOne(Price::class)->latestOfMany();
+    }
+
+    public function attributes()
+    {
+        return $this->belongsToMany(Attribute::class);
+    }
+}

app/Models/UnitType.php

@@ -29,4 +29,9 @@ public function deleter()
     {
         return $this->belongsTo(User::class, 'deleted_by')->select(['id', 'name']);
     }
+
+    public function products()
+    {
+        return $this->hasMany(Product::class);
+    }
 }

app/Models/Warehouse.php

@@ -31,4 +31,9 @@ public function deleter()
     {
         return $this->belongsTo(User::class, 'deleted_by')->select(['id', 'name']);
     }
+
+    public function products()
+    {
+        return $this->belongsToMany(Product::class)->withPivot(['quantity']);
+    }
 }

app/Observers/ProductObserver.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Observers;
+
+use App\Models\Product;
+
+class ProductObserver
+{
+    public function creating(Product $product)
+    {
+        $product->slug = str($product->name)->slug()->toString();
+        $product->created_by = auth()->id();
+        $product->status = 'active';
+    }
+
+    public function updating(Product $product)
+    {
+        $product->slug = str($product->name)->slug()->toString();
+        $product->updated_by = auth()->id();
+    }
+}

app/Policies/ProductPolicy.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace App\Policies;
+
+use App\Models\Product;
+use App\Models\User;
+
+class ProductPolicy
+{
+    /**
+     * Determine whether the user can view any models.
+     */
+    public function viewAny(User $user): bool
+    {
+        return $user->can('product-list');
+    }
+
+    /**
+     * Determine whether the user can view the model.
+     */
+    public function view(User $user, Product $product): bool
+    {
+        return $user->can('product-list');
+    }
+
+    /**
+     * Determine whether the user can create models.
+     */
+    public function create(User $user): bool
+    {
+        return $user->can('product-create');
+    }
+
+    /**
+     * Determine whether the user can update the model.
+     */
+    public function update(User $user, Product $product): bool
+    {
+        return $user->can('product-edit');
+    }
+
+    /**
+     * Determine whether the user can delete the model.
+     */
+    public function delete(User $user, Product $product): bool
+    {
+        return $user->can('product-delete');
+    }
+
+    /**
+     * Determine whether the user can restore the model.
+     */
+    public function restore(User $user, Product $product): bool
+    {
+        return $user->can('product-restore');
+    }
+
+    /**
+     * Determine whether the user can permanently delete the model.
+     */
+    public function forceDelete(User $user, Product $product): bool
+    {
+        return $user->can('product-force-delete');
+    }
+}

app/Providers/AppServiceProvider.php

@@ -12,6 +12,7 @@
 use App\Models\Expense;
 use App\Models\ExpenseCategory;
 use App\Models\PaymentMethod;
+use App\Models\Product;
 use App\Models\UnitType;
 use App\Models\Warehouse;
 use App\Observers\AccountObserver;
@@ -24,6 +25,7 @@
 use App\Observers\ExpenseCategoryObserver;
 use App\Observers\ExpenseObserver;
 use App\Observers\PaymentMethodObserver;
+use App\Observers\ProductObserver;
 use App\Observers\UnitTypeObserver;
 use App\Observers\WarehouseObserver;
 use Illuminate\Support\ServiceProvider;
@@ -54,6 +56,7 @@ public function boot(): void
         UnitType::observe(UnitTypeObserver::class);
         Attribute::observe(AttributeObserver::class);
         AttributeValue::observe(AttributeValueObserver::class);
+        Product::observe(ProductObserver::class);
         Warehouse::observe(WarehouseObserver::class);
     }
 }

database/factories/PriceFactory.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Database\Factories;
+
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/**
+ * @extends \Illuminate\Database\Eloquent\Factories\Factory<\App\Models\Price>
+ */
+class PriceFactory extends Factory
+{
+    /**
+     * Define the model's default state.
+     *
+     * @return array<string, mixed>
+     */
+    public function definition(): array
+    {
+        return [
+            'price' => fake()->numberBetween(100, 1000),
+        ];
+    }
+}