Php Laravel集合-结果顺序

以下

控制器：

public function treatmentsList()
    {
        $treatments = Treatment::with('category')->where('status', 1)->orderBy('medical_name')->get();
        $groups = $treatments->groupBy('category.name');
        return view('pages.treatments.list', compact( 'groups'));
    }

视图：

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如何获得按字母顺序列出的治疗方法和类别？

您可以通过为急切加载查询添加查询约束来获得：

Treatment::with(['category' => function ($query) { 
    $query->orderBy('name');
}])
->where('status', 1)
->orderBy('medical_name')
->get();

嗨

我不确定这是不是你的意思。。。但它不起作用。。。我仍然没有按字母顺序列出类别

public function treatmentsList()
{
    $treatments = Treatment::with(['category' => function ($query) {
        $query->orderBy('name');
    }])
        ->where('status', 1)
        ->orderBy('medical_name')
        ->get();
    $groups = $treatments->groupBy('category.name');
    return view('pages.treatments.listA', compact( 'groups'));
}

你是对的，我错了。我认为答案是join查询：

public function treatmentsList()
{
    $treatments = Treatment::with('category')
        ->select('treatment.*')
        ->join('category', 'category.id', '=', 'treatment.category_id')
        ->where('treatment.status', 1)
        ->orderBy('category.name')
        ->orderBy('treatment.medical_name')
        ->get();
    $groups = $treatments->groupBy('category.name');
    return view('pages.treatments.listA', compact( 'groups'));
}

---

检查上面示例中的表和字段的名称。这应该行得通。

在groupBy函数调用之后，您是否尝试了一个

->orderBy（'category.name'）

？在groupBy函数调用之后添加

->orderBy（'category.name'）

：方法orderBy不存在。非常感谢您。。。我刚刚调整了表名，一切正常。

public function treatmentsList()
{
    $treatments = Treatment::with(['category' => function ($query) {
        $query->orderBy('name');
    }])
        ->where('status', 1)
        ->orderBy('medical_name')
        ->get();
    $groups = $treatments->groupBy('category.name');
    return view('pages.treatments.listA', compact( 'groups'));
}

public function treatmentsList()
{
    $treatments = Treatment::with('category')
        ->select('treatment.*')
        ->join('category', 'category.id', '=', 'treatment.category_id')
        ->where('treatment.status', 1)
        ->orderBy('category.name')
        ->orderBy('treatment.medical_name')
        ->get();
    $groups = $treatments->groupBy('category.name');
    return view('pages.treatments.listA', compact( 'groups'));
}