yuezi-saas/backend/app/Models/Crm/QuestionnaireAnswer.php

<?php

namespace App\Models\Crm;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class QuestionnaireAnswer extends Model
{
    protected $fillable = [
        'questionnaire_template_id', 'customer_id',
        'answers', 'score', 'status',
    ];

    protected function casts(): array
    {
        return [
            'answers' => 'array',
            'score' => 'decimal:2',
            'status' => 'integer',
        ];
    }

    public function template(): BelongsTo
    {
        return $this->belongsTo(QuestionnaireTemplate::class, 'questionnaire_template_id');
    }

    public function customer(): BelongsTo
    {
        return $this->belongsTo(Customer::class);
    }
}