first commit

app/Models/PurchaseOrderItem.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class PurchaseOrderItem extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'purchase_order_id',
+        'product_id',
+        'quantity',
+        'unit_price',
+        'subtotal',
+        'received_quantity',
+    ];
+
+    protected $casts = [
+        'quantity' => 'decimal:2',
+        'unit_price' => 'decimal:2',
+        'subtotal' => 'decimal:2',
+        'received_quantity' => 'decimal:2',
+    ];
+
+    protected $appends = [
+        'productName',
+        'unit',
+        'productId',
+        'unitPrice',
+    ];
+
+    public function getProductIdAttribute(): string
+    {
+        return (string) $this->attributes['product_id'];
+    }
+
+    public function getUnitPriceAttribute(): float
+    {
+        return (float) $this->attributes['unit_price'];
+    }
+
+    public function getProductNameAttribute(): string
+    {
+        return $this->product ? $this->product->name : '';
+    }
+
+    public function getUnitAttribute(): string
+    {
+        return $this->product ? $this->product->base_unit : '';
+    }
+
+    public function purchaseOrder(): BelongsTo
+    {
+        return $this->belongsTo(PurchaseOrder::class);
+    }
+
+    public function product(): BelongsTo
+    {
+        return $this->belongsTo(Product::class);
+    }
+}