sfp_api_laravel_ginastica_cerebro/app/Models/UnitAccountReceivable.php

<?php

namespace App\Models;

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

/**
 * Contas a Receber avulsas da unidade (lançamentos manuais, aluno opcional).
 *
 * @property int $id
 * @property int $unit_id
 * @property int|null $student_id
 * @property int|null $financial_plan_account_id
 * @property string $origin
 * @property string $history
 * @property numeric $value
 * @property numeric $paid_value
 * @property numeric $discount
 * @property numeric $fine
 * @property \Illuminate\Support\Carbon $due_date
 * @property \Illuminate\Support\Carbon|null $payment_date
 * @property string $status
 * @property string|null $obs
 */
class UnitAccountReceivable extends Model
{
    use HasFactory, SoftDeletes;

    public const ORIGIN_MANUAL = 'manual';

    protected $table = 'unit_account_receivables';

    protected $guarded = ['id'];

    protected $casts = [
        'value'        => 'decimal:2',
        'paid_value'   => 'decimal:2',
        'discount'     => 'decimal:2',
        'fine'         => 'decimal:2',
        'due_date'     => 'date',
        'payment_date' => 'date',
        'created_at'   => 'datetime',
        'updated_at'   => 'datetime',
        'deleted_at'   => 'datetime',
    ];

    public function unit(): BelongsTo
    {
        return $this->belongsTo(Unit::class, 'unit_id');
    }

    public function student(): BelongsTo
    {
        return $this->belongsTo(Student::class, 'student_id');
    }

    public function planAccount(): BelongsTo
    {
        return $this->belongsTo(FinancialPlanAccount::class, 'financial_plan_account_id');
    }
}