Laravel从数据透视表多对多关系中获取数据

我想得到具体笔记的课程。这里，注释id和类id位于透视表中

Note.php

    public function classes()
        {
            return $this->belongsToMany(MyClass::class);
        }

MyClass.php

public function notes()
    {
        return $this->belongsToMany(Note::class);
    }

我正在通过成功保存数据

$note->classes()->attach($request->class);

MyClass迁移

Schema::create('my_classes', function (Blueprint $table) {
            $table->id();
            $table->string('name');
            $table->timestamps();

            $table->boolean('isDeleted')->default(false);
            $table->dateTime('deletedAt')->nullable();
        });

Schema::create('notes', function (Blueprint $table) {
            $table->id();
            $table->string('title');
            $table->string('description')->nullable();
            $table->string('image')->nullable();

            $table->timestamps();

            $table->boolean('isDeleted')->default(false);
            $table->dateTime('deletedAt')->nullable();
        });

Notes迁移

Schema::create('my_classes', function (Blueprint $table) {
            $table->id();
            $table->string('name');
            $table->timestamps();

            $table->boolean('isDeleted')->default(false);
            $table->dateTime('deletedAt')->nullable();
        });

Schema::create('notes', function (Blueprint $table) {
            $table->id();
            $table->string('title');
            $table->string('description')->nullable();
            $table->string('image')->nullable();

            $table->timestamps();

            $table->boolean('isDeleted')->default(false);
            $table->dateTime('deletedAt')->nullable();
        });

我的课堂笔记迁移

Schema::create('my_class_note', function (Blueprint $table) {
            $table->bigIncrements('id');

            $table->foreignId('my_class_id')->constrained();
            $table->foreignId('note_id')->constrained();

            $table->timestamps();
        });

---

需要帮助获取特定笔记的课程。一个注释可以有许多类。

您只需使用relationship属性访问它，如果您定义了一个关系，则总会有

// returns a collection of classes
$classes = Note::find(1)->classes;

在你的控制器里

return view('yourview', ['classes' => $classes]);

在你看来

@foreach($classes as $class)
    <p>{{$class->name}}</p>
@endforeach

---

您可以使用relationship属性简单地访问它，如果您已经定义了关系，则始终会有

// returns a collection of classes
$classes = Note::find(1)->classes;

在你的控制器里

return view('yourview', ['classes' => $classes]);

在你看来

@foreach($classes as $class)
    <p>{{$class->name}}</p>
@endforeach

---

你的问题似乎有点直截了当，如果我误解了，请告诉我：非常感谢。使用foreach$note->classes作为$class{！！$class->name！！}endforeach进入刀片文件如果它解决了问题，请记住接受它作为答案：您的问题似乎有点直截了当，如果我误解了，请告诉我：非常感谢。使用foreach$note->classes作为$class{！！$class->name！！}endforeach进入刀片文件如果它解决了问题，请记住接受它作为答案：