общий код

app/Models/BankTask.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class BankTask extends Model
+{
+    use HasFactory;
+
+    protected $guarded = [
+        'user_id',
+    ];
+
+    public function user()
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function subject()
+    {
+        return $this->belongsTo(Subject::class);
+    }
+
+    public function theme()
+    {
+        return $this->belongsTo(Theme::class);
+    }
+
+}