试图获取非对象的属性-Laravel，无法显示我的外键数据

如何解决试图获取非对象的属性-Laravel，无法显示我的外键数据

请帮助，我正在尝试显示数据库中的数据，但是显示的是表的“ id”（id Kelas）。我想在“ Kelas”表的“ Murids”表中显示“ kelas”和“ jurusan_kelas”。该表具有一对多关系。

这是错误Trying to get property 'jurusan_kelas' of non-object (View: D:\new xampp\htdocs\sekolah\resources\views\murid\indexMurid.blade.php) http://sekolah.test/murid

这是我的“肮脏”模型

 protected $fillable = [
        'nis','nama_murid','kelas','gender','tanggal_lahir','alamat','nomor_telp',];
    public function kelas(){
       return $this->belongsTo(Kelas::class,'id');
    }

这是我的“凯拉斯”模型

protected $fillable = [
        'kelas','jurusan_kelas','wali_kelas',];

    public function murids(){
        return $this->hasMany(Murid::class,'id');
    }

这是“肮脏”的迁移

public function up()
    {
        Schema::create('murids',function (Blueprint $table) {
            $table->id();
            $table->bigInteger('nis')->unique();
            $table->string('nama_murid');
            $table->string('gender');
            $table->date('tanggal_lahir');
            $table->string('alamat');
            $table->bigInteger('nomor_telp');
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('murids');
    }

这是“龙骨”的迁移

public function up()
    {
        Schema::create('kelas',function (Blueprint $table) {
            $table->id();
            $table->string('kelas');
            $table->string('jurusan_kelas');
            $table->string('wali_kelas')->unique();
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('kelas');
    }

这是将“ kelas”添加到多表迁移中

    public function up()
    {
        Schema::table('murids',function (Blueprint $table) {
            //
            $table->unsignedBigInteger('kelas')->index()->after('nama_murid');

            $table->foreign('kelas')->references('id')->on('kelas')->onDelete('cascade');
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::table('murids',function (Blueprint $table) {
            //
            $table->dropColumn('kelas');
        });
    }

这是我的“ index.blade”

 @foreach ($murids as $murid)
                            <tr>
                                <td>{{ $murid->nis }} </a></td>
                                <td>{{ $murid->nama_murid }}</td>
                                <td>{{ $murid->kelas->jurusan_kelas}}</td>
                                <td>{{ $murid->gender }}</td>
                                <td>{{ $murid->tanggal_lahir }} </a></td>
                                <td>{{ $murid->alamat }}</td>
                                <td>{{ $murid->nomor_telp }}</td>
                                    <td>
                                    <form action="{{ route('murid.destroy',$murid) }}" method="post">
                                        @csrf
                                        <input type="hidden" name="_method" value="DELETE">
                                        <button type="submit" class="btn btn-danger">Delete</button>
                                    </form>
                                </td>
                                <td>
                                    <form action="{{ route('murid.edit',$murid) }}">
                                        @csrf
                                        {{-- <input type="hidden" name="_method" value="EDIT"> --}}
                                        <button type="submit" class="btn btn-info">Edit</button>
                                    </form>
                                </td>
                                
                            </tr>
                        @endforeach

this is my table to display the data from the database

this is the data that i want to show on the red circle

我的问题是显示另一个表中的另一个数据，我想获取的数据不是表（fk）的“ id”