Question

我想显示我的行，但是我想将它们分为几部分，并按其类型ID进行分组。

Section 1
---------
<item>
<item>

Section 2
---------
<item>

我可以轻松地在刀片视图中进行操作，如下所示...

@foreach($types as $type)
<h1>{{ $type->name }}</h1>
<div class="list">
    <ul>
        @forelse(App\Equipment::where("type_id", $type->id)->get() as $item)
        <li>
            {{ $item->name }}
        </li>
        @empty
        <li>No results found.</li>
        @endforelse
    </ul>
</div>
@endforeach

但是这无效，我需要在控制器中实现查询，因为我需要查询参数。

public function index(Request $request) {
    $item = \DB::table("equipment");

    $appends = [];

    foreach(["type_id", "sockets", "quality_id", "one_hand"] as $field) {
        if($request->has($field)) {
            $appends[$field] = $request->input($field);
            $item->where($field, $request->input($field));
        }
    }

    if($request->has("class")) {
        $appends["class"] = $request->input("class");
        $item->where(["class_id" => $request->input("class")])
            ->orWhere(["class_id2" => $request->input("class")], ["class_id3" => $request->input("class")]);
    }

    if($request->has("name")) {
        $appends["name"] = $request->input("name");
        $item->where("name", "like", "%" . $request->input("name") . "%");
    }

    if($request->has("stats")) {
        $stats = $request->input("stats");
        $appends["stats"] = $stats;
        foreach($stats as $stat) {
            $item->where("stat_1", $stat)
                ->orWhere("stat_2", $stat)
                ->orWhere("stat_3", $stat)
                ->orWhere("stat_4", $stat)
                ->orWhere("stat_5", $stat)
                ->orWhere("stat_6", $stat)
                ->orWhere("stat_7", $stat)
                ->orWhere("stat_8", $stat)
                ->orWhere("stat_9", $stat)
                ->orWhere("stat_10", $stat)
                ->orWhere("stat_11", $stat);
        }
    }

    $item->groupBy("type_id");
    $items = $item->paginate(15);
    $items->appends($appends);

    return view("equipment.index", [
        "items" => $items,
        "types" => Types::all(),
        "stats" => EquipmentStats::all(),
        "classes" => CLasses::all(),
        "qualities" => EquipmentQualities::all()
    ]);
}

如何在我的控制器中实现？

Answer 1

我猜您正在寻找的是types和equipments。因此，请使用紧急加载。

控制器

public function index()
{
    $types = Type::with(['equipments' => $this->searchScope()])->get();

    return view("equipment.index", [
        "types" => $types,
        ... // other things
    ]);
}

protected function searchScope()
{
    return function($query) {

        $request = request();

        $appends = [];

        foreach(["type_id", "sockets", "quality_id", "one_hand"] as $field) {
            if($request->has($field)) {
                $appends[$field] = $request->input($field);
                $query->where($field, $request->input($field));
            }
        }

        if($request->has("class")) {
            $appends["class"] = $request->input("class");
            $query->where(["class_id" => $request->input("class")])
                ->orWhere(["class_id2" => $request->input("class")], ["class_id3" => $request->input("class")]);
        }

        if($request->has("name")) {
            $appends["name"] = $request->input("name");
            $query->where("name", "like", "%" . $request->input("name") . "%");
        }

        if($request->has("stats")) {
            $stats = $request->input("stats");
            $appends["stats"] = $stats;
            foreach($stats as $stat) {
                $query->where("stat_1", $stat)
                    ->orWhere("stat_2", $stat)
                    ->orWhere("stat_3", $stat)
                    ->orWhere("stat_4", $stat)
                    ->orWhere("stat_5", $stat)
                    ->orWhere("stat_6", $stat)
                    ->orWhere("stat_7", $stat)
                    ->orWhere("stat_8", $stat)
                    ->orWhere("stat_9", $stat)
                    ->orWhere("stat_10", $stat)
                    ->orWhere("stat_11", $stat);
            }
        }

        $query->groupBy("type_id");
    };
}

查看

@foreach($types as $type)
<h1>{{ $type->name }}</h1>
<div class="list">
    <ul>
        @forelse($type->equipments as $equipment)
        <li>
            {{ $equipment->name }}
        </li>
        @empty
        <li>No results found.</li>
        @endforelse
    </ul>
</div>
@endforeach

注意

为此，您需要在equipments模型上定义Type关系。

如果您没有。这就是方法。

类型模型

class Type extends Model
{
    public function equipments()
    {
        return $this->hasMany(Equipment:class);
    }
}

Answer 2

使用const asyncFunc = (a) => { return new Promise((resolve) => { setTimeout(() => resolve(a), 1000); }) } const asyncFunc1 = () => asyncFunc(1); const asyncFunc2 = () => asyncFunc(2); async function foo() { const result1 = asyncFunc1(); const result2 = asyncFunc2(); return JSON.stringify({ result1, result2 }); } async function foo2() { return [result1, result2] = await Promise.all([ asyncFunc1(), asyncFunc2(), ]); } (async () =>{ const el = document.createElement('div'); el.appendChild(document.createTextNode(await foo())); el.appendChild(document.createTextNode(await foo2())); document.querySelector('body').appendChild(el); })(); // {"result1":{},"result2":{}} 1,2按groupBy对设备进行分组

type_id

然后您认为

$items = $item->paginate(15);

$itemsCollection = $items->groupBy(function($item) {
    return $item->type_id;
});

$items = new \Illuminate\Pagination\LengthAwarePaginator($itemsCollection, $items->total(), $items->perPage());
$items->appends($appends);

按部分分组

2 个答案: