optimizations

app/Models/CollectionSubmission.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class CollectionSubmission extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'collection_id',
+        'artwork_id',
+        'user_id',
+        'message',
+        'status',
+        'reviewed_by_user_id',
+        'reviewed_at',
+    ];
+
+    protected $casts = [
+        'reviewed_at' => 'datetime',
+    ];
+
+    public function collection(): BelongsTo
+    {
+        return $this->belongsTo(Collection::class);
+    }
+
+    public function artwork(): BelongsTo
+    {
+        return $this->belongsTo(Artwork::class);
+    }
+
+    public function user(): BelongsTo
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function reviewedBy(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'reviewed_by_user_id');
+    }
+}