tuttogare/cmds/app/Models/Tenant/Conservazione/Conservazione.php

<?php

namespace App\Models\Tenant\Conservazione;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class Conservazione extends Model
{
    use HasFactory;

    /**
    * The connection name for the model.
    *
    * @var string|null
    */
   protected $connection = "mysql-tenant";

   /**
    * The table associated with the model.
    *
    * @var string
    */
   protected $table = "b_conservazione";

   /**
    * The attributes that are mass assignable.
    *
    * @var string[]
    */
    protected $fillable = [
        'modulo',
        'tipologia',
        'codice_elemento',
        'codice_ente'
    ];

   /**
    * The primary key for the model.
    *
    * @var string
    */
   protected $primaryKey = 'codice';

   /**
    * The name of the "created at" column.
    *
    * @var string|null
    */
   const CREATED_AT = 'timestamp_creazione';

   /**
    * The name of the "updated at" column.
    *
    * @var string|null
    */
   const UPDATED_AT = 'timestamp';

   /**
    * Get all of the files for the Conservazione
    *
    * @return \Illuminate\Database\Eloquent\Relations\HasMany
    */
   public function items(): HasMany
   {
       return $this->hasMany(\App\Models\Tenant\Conservazione\File::class, 'codice_conservazione', 'codice');
   }

   /**
    * Get the object that owns the Conservazione
    *
    * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
    */
   public function object(): ?BelongsTo
   {
        switch($this->modulo) {

            case 'gare':
                return $this->belongsTo(\App\Models\Tenant\Gare\Gara::class, 'codice_elemento', 'codice');

            default:
                return null;

        }
   }

}