chore: initial commit of existing codebase

app/Models/ProductionOrder.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class ProductionOrder extends Model
+{
+    use HasFactory;
+
+    protected $fillable = ['order_number', 'product_id', 'quantity_to_produce', 'quantity_produced', 'production_date', 'completion_date', 'status', 'notes', 'created_by'];
+
+    protected $casts = [
+        'production_date' => 'date',
+        'completion_date' => 'date',
+        'quantity_to_produce' => 'decimal:2',
+        'quantity_produced' => 'decimal:2',
+    ];
+
+    public function product()
+    {
+        return $this->belongsTo(Item::class, 'product_id');
+    }
+
+    public function materialIssues()
+    {
+        return $this->hasMany(MaterialIssue::class);
+    }
+
+    public function outputs()
+    {
+        return $this->hasMany(ProductionOutput::class);
+    }
+
+    public function cost()
+    {
+        return $this->hasOne(ProductionCost::class);
+    }
+
+    public function createdBy()
+    {
+        return $this->belongsTo(\App\Models\User::class, 'created_by');
+    }
+}