updated models

app/Models/Company.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Company extends Model
+{
+    use SoftDeletes;
+
+    protected $fillable = [
+        'name',
+    ];
+
+    public function plants(): HasMany
+    {
+        return $this->hasMany(Plant::class);
+    }
+}