我正在使用多种关系并使用eager loading。我现在拥有三个表格（quizzes，multiple_choice，question_numbers），我想使用multiple_choice表格对question_numbers字段进行排序{ {1}}。我怎样才能做到这一点？请参阅下面的代码：
question_number我尝试了评论部分，但没有发生。
使用dd（）
进行更新使用 $undeleted = function($query){
return $query->where('deleted', 0);
};
$quiz = Quiz::with([
'multiple_choices.question_numbers' => $undeleted
])->find($id);
$quiz_items = collect($quiz->multiple_choices);
//$quiz_items = $quiz_items->sortBy('question_number');
后，结果为：
dd()UPDATE2
Collection {#478 ▼
#items: array:13 [▼
0 => MultipleChoice {#427 ▼
#table: "multiple_choice"
#fillable: array:6 [▶]
#connection: null
#primaryKey: "id"
#perPage: 15
+incrementing: true
+timestamps: true
#attributes: array:9 [▼
"id" => 1
"name" => "My name"
"question" => "the question body"
"created_at" => "2017-06-06 00:00:00"
"updated_at" => "2017-10-07 18:34:36"
]
#original: array:13 [▶]
#relations: array:2 [▶]
#hidden: []
#visible: []
#appends: []
#guarded: array:1 [▶]
#dates: []
#dateFormat: null
#casts: []
#touches: []
#observables: []
#with: []
#morphClass: null
+exists: true
+wasRecentlyCreated: false
}
]
}
更新3
数据库
#relations: array:2 [▼
"pivot" => Pivot {#426 ▶}
"question_numbers" => Collection {#452 ▼
#items: array:1 [▼
0 => Quiz {#449 ▶}
]
}
]
- quizzes，id，name
body - multiple_choice，id，name
question - multiple_choice_quiz，id，multiple_choice_id
quiz_id - question_numbers，id，quiz_id，question_id
question_number表中的question_number字段是我要排序或订购的字段。