I have a laravel project with a one to one relationship. But I have a problem, I can't delete the data. The code looks perfectly normal and no errors appear, but it can't delete the data

this is my table structure

Teacher table

• id
• name
• username
• nip

Kelas table

• nama_kelas
• username
• teacher_id

Migration kelas table :

<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

class CreateKelasTable extends Migration
{
    public function up()
    {
        Schema::create('kelas', function (Blueprint $table) {
            $table->id();
            $table->string('nama_kelas');
            $table->string('username')->unique();
            $table->foreignId('teacher_id')->constrained()->cascadeOnDelete();
            $table->timestamps();
        });
    }
}

Migration teacher table :

<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

class CreateTeachersTable extends Migration
{
    public function up()
    {
        Schema::create('teachers', function (Blueprint $table) {
            $table->id();
            $table->string('name');
            $table->string('username')->unique();
            $table->bigInteger('nip')->unique()->nullable();
            $table->timestamps();
        });
    }
}

Teacher Model :

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Teacher extends Model
{
    use HasFactory;

    protected $guarded = ['id'];

    public function kelas()
    {
        return $this->hasOne(Kelas::class);
    }

    public function getRouteKeyName()
    {
        return 'username';
    }
}

Kelas Model :

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Kelas extends Model
{
    use HasFactory;

    protected $guarded = ['id'];

    public function teacher()
    {
        return $this->belongsTo(Teacher::class);
    }

    public function getRouteKeyName()
    {
        return 'username';
    }
}

Kelas Delete Controller :

public function destroy(Kelas $kelas)
{
    $kelas->delete();

    return redirect('/kelas');
}

Button Delete :

<form action="{{ route('kelas.destroy', $k->username) }}" method="POST" >
    @method('DELETE')
    @csrf
    <button onclick="return confirm('Are you sure you want to delete this post?')">
        Delete
    </button>
</form>

CodePudding user response：

can you try

Kelas::destroy($kelas->id);

CodePudding user response：

Delete Button:

<form action="{{ route('kelas.destroy', $k->id) }}" method="POST" >

Kelas Delete Controller :

public function destroy($kelas)
    {
        Kelas::destroy($kelas);

        return redirect('/kelas');
    }