partial update create mutations

app/Models/MutationDetail.php

@@ -0,0 +1,98 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class MutationDetail extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'mutation_id',
+        'product_id',
+        'quantity_requested',
+        'quantity_approved',
+        'notes'
+    ];
+
+    protected $casts = [
+        'quantity_requested' => 'decimal:2',
+        'quantity_approved' => 'decimal:2'
+    ];
+
+    public function mutation()
+    {
+        return $this->belongsTo(Mutation::class);
+    }
+
+    public function product()
+    {
+        return $this->belongsTo(Product::class);
+    }
+
+    // Helper methods
+    public function getQuantityDifferenceAttribute()
+    {
+        return $this->quantity_approved - $this->quantity_requested;
+    }
+
+    public function isFullyApproved()
+    {
+        return $this->quantity_approved == $this->quantity_requested;
+    }
+
+    public function isPartiallyApproved()
+    {
+        return $this->quantity_approved > 0 && $this->quantity_approved < $this->quantity_requested;
+    }
+
+    public function isRejected()
+    {
+        return $this->quantity_approved == 0;
+    }
+
+    public function getApprovalStatusAttribute()
+    {
+        if ($this->isFullyApproved()) {
+            return 'Disetujui Penuh';
+        } elseif ($this->isPartiallyApproved()) {
+            return 'Disetujui Sebagian';
+        } elseif ($this->isRejected()) {
+            return 'Ditolak';
+        } else {
+            return 'Menunggu';
+        }
+    }
+
+    public function getApprovalStatusColorAttribute()
+    {
+        if ($this->isFullyApproved()) {
+            return 'success';
+        } elseif ($this->isPartiallyApproved()) {
+            return 'warning';
+        } elseif ($this->isRejected()) {
+            return 'danger';
+        } else {
+            return 'info';
+        }
+    }
+
+    // Scope untuk filter berdasarkan status approval
+    public function scopeFullyApproved($query)
+    {
+        return $query->whereColumn('quantity_approved', '=', 'quantity_requested');
+    }
+
+    public function scopePartiallyApproved($query)
+    {
+        return $query->where('quantity_approved', '>', 0)
+                    ->whereColumn('quantity_approved', '<', 'quantity_requested');
+    }
+
+    public function scopeRejected($query)
+    {
+        return $query->where('quantity_approved', '=', 0);
+    }
+}