feat: refactor product attributes handling to use product_attribute table and update related models and requests

app/Domains/Catalog/Models/Attribute.php

@@ -9,6 +9,7 @@ use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\Relations\HasManyThrough;
 
 #[Fillable([
     'tenant_codigo',
@@ -53,10 +54,25 @@ class Attribute extends Model
     }
 
     /**
-     * @return HasMany<ProductVariantDefinition, $this>
+     * @return HasMany<ProductAttribute, $this>
      */
-    public function variantDefinitions(): HasMany
+    public function productAttributes(): HasMany
     {
-        return $this->hasMany(ProductVariantDefinition::class, 'attribute_id');
+        return $this->hasMany(ProductAttribute::class, 'attribute_id');
+    }
+
+    /**
+     * @return HasManyThrough<ProductVariantDefinition, ProductAttribute, $this>
+     */
+    public function variantDefinitions(): HasManyThrough
+    {
+        return $this->hasManyThrough(
+            ProductVariantDefinition::class,
+            ProductAttribute::class,
+            'attribute_id',
+            'products_attribute_id',
+            'id',
+            'id'
+        );
     }
 }

app/Domains/Catalog/Models/Product.php

@@ -5,6 +5,7 @@ namespace App\Domains\Catalog\Models;
 use App\Domains\Attachable\Models\Attachment;
 use App\Domains\Catalog\Models\Brand;
 use App\Domains\Catalog\Models\Category;
+use App\Domains\Catalog\Models\ProductAttribute;
 use App\Domains\Tenant\Models\Tenant;
 use Illuminate\Database\Eloquent\Attributes\Fillable;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
@@ -83,6 +84,14 @@ class Product extends Model
         )->withTimestamps();
     }
 
+    /**
+     * @return HasMany<ProductAttribute, $this>
+     */
+    public function productAttributes(): HasMany
+    {
+        return $this->hasMany(ProductAttribute::class, 'product_id');
+    }
+
     /**
      * @return BelongsToMany<Attachment, $this>
      */
@@ -170,20 +179,25 @@ class Product extends Model
     protected function validateVariantDefinitions(array $definitions): void
     {
         foreach ($definitions as $definition) {
-            $attributeId = $definition['attribute_id'] ?? null;
-            if (!$attributeId) {
+            $productAttributeId = $definition['products_attribute_id'] ?? null;
+            if (! $productAttributeId) {
                 continue;
             }
 
-            $attribute = Attribute::find($attributeId);
-            if (!$attribute) {
-                throw new \InvalidArgumentException("Attribute with ID {$attributeId} not found.");
+            $productAttribute = $this->productAttributes()
+                ->with('attribute.options')
+                ->find($productAttributeId);
+
+            $attribute = $productAttribute?->attribute;
+
+            if (! $productAttribute || ! $attribute) {
+                throw new \InvalidArgumentException("Product attribute with ID {$productAttributeId} not found for product {$this->id}.");
             }
 
             if ($attribute->type === \App\Domains\Shared\Enums\FieldType::Select) {
                 $allowedValues = $attribute->options()->pluck('value')->toArray();
                 $val = $definition['value'] ?? null;
-                if ($val !== null && !in_array($val, $allowedValues, true)) {
+                if ($val !== null && ! in_array($val, $allowedValues, true)) {
                     throw new \InvalidArgumentException("The value '{$val}' is not a valid option for the select attribute '{$attribute->nombre}'.");
                 }
             } elseif ($attribute->type === \App\Domains\Shared\Enums\FieldType::Multiselect) {
@@ -202,7 +216,7 @@ class Product extends Model
                         }
                     }
                     foreach ($values as $v) {
-                        if (!in_array($v, $allowedValues, true)) {
+                        if (! in_array($v, $allowedValues, true)) {
                             throw new \InvalidArgumentException("The value '{$v}' is not a valid option for the multiselect attribute '{$attribute->nombre}'.");
                         }
                     }

app/Domains/Catalog/Models/ProductAttribute.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace App\Domains\Catalog\Models;
+
+use Illuminate\Database\Eloquent\Attributes\Fillable;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+#[Fillable([
+    'product_id',
+    'attribute_id',
+])]
+class ProductAttribute extends Model
+{
+    use HasFactory;
+
+    protected $table = 'products_attributes';
+
+    /**
+     * @return BelongsTo<Product, $this>
+     */
+    public function product(): BelongsTo
+    {
+        return $this->belongsTo(Product::class, 'product_id');
+    }
+
+    /**
+     * @return BelongsTo<Attribute, $this>
+     */
+    public function attribute(): BelongsTo
+    {
+        return $this->belongsTo(Attribute::class, 'attribute_id');
+    }
+
+    /**
+     * @return HasMany<ProductVariantDefinition, $this>
+     */
+    public function variantDefinitions(): HasMany
+    {
+        return $this->hasMany(ProductVariantDefinition::class, 'products_attribute_id');
+    }
+}

app/Domains/Catalog/Models/ProductVariantDefinition.php

@@ -9,7 +9,7 @@ use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
 #[Fillable([
     'producto_variante_id',
-    'attribute_id',
+    'products_attribute_id',
     'value',
 ])]
 class ProductVariantDefinition extends Model
@@ -27,10 +27,10 @@ class ProductVariantDefinition extends Model
     }
 
     /**
-     * @return BelongsTo<Attribute, $this>
+     * @return BelongsTo<ProductAttribute, $this>
      */
-    public function attribute(): BelongsTo
+    public function productAttribute(): BelongsTo
     {
-        return $this->belongsTo(Attribute::class, 'attribute_id');
+        return $this->belongsTo(ProductAttribute::class, 'products_attribute_id');
     }
 }