<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Letter extends Model
{
    protected $fillable = [
        'title',
        'publication_date',
        'open_until',
        'letter_type',
        'document_id',
        'user_id'
    ];

    protected $attributes = [
        'letter_type' => ['existingContracts', 'newContracts'],
    ];

    public function document()
    {
        return $this->belongsTo(Document::class);
    }

    public function user()
    {
        return $this->belongsTo(User::class);
    }

    public function company()
    {
        return $this->belongsTo(Company::class);
    }
}