根据输入值，查询类别中是否包含姓名或公司名称。我要return公司名单

Question

根据输入值，查询类别中是否包含姓名或公司名称。我要return公司名单。

控制器中的查询方法中，return $comp;听起来很空。

控制器：

public function query(Request $request)
{
    $search = $request->what;
    $companies = Company::where('deleted_at', null);

    if ($search) {
        $categories = Category::where('deleted_at', null);
        $comp = [];
        foreach ($categories as $category) {
            if (Str::contains(mb_strtolower($category->name), mb_strtolower($search)))
                array_push($comp, $category->company);
        }


        return $comp;
    }
}

类别模型：

public function companies()
{
    return $this->hasMany('App\Company', 'category_id', 'id');
}

公司型号：

public function category()
{
    return $this->belongsTo('App\Category', 'category_id', 'id')->withDefault([
        'name' => '-']);
}

类别迁移：

 Schema::create('categories', function (Blueprint $table) {
        $table->bigIncrements('id');
        $table->unsignedBigInteger('upper_id')->default(0);
        $table->string('name', 100);
        $table->string('slug', 100);
        $table->string('description', 500)->nullable();
        $table->timestamps();
        $table->softDeletes();
    });

公司迁移：

Schema::create('companies', function (Blueprint $table) {
        $table->bigIncrements('id');
        $table->unsignedBigInteger('category_id');
        $table->string('name', 100);
        $table->string('slug', 100);
        $table->timestamps();
        $table->softDeletes();

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

Answer 1

如果你想要公司列表，最好在公司模型中查询。

$companies = Company::with('category')
            ->where('name', 'LIKE',"%{$search}%")
            ->orWhereHas('category', function($query) use($search) {
                $query->where('name','LIKE',"%{$search}%");
            })
            ->get();

它将 return collection 搜索公司名称或类别名称的公司。如果你想在类别模型中查询，你需要使用类似

的东西

$categories = Category::where('name', 'LIKE',"%{$search}%")
                ->orWhereHas('companies', function($query) use($search) {
                    $query->where('name','LIKE',"%{$search}%");
                })
                ->get();

现在您可以推送与每个类别关联的公司并将数组发送到blade。但最好的方法是将类别发送到 blade 并像

一样迭代它们

@foreach($categories as $category)
    @foreach($category->companies as $company)
    {{ $company->name }}
    @endforeach
@endforeach

根据输入值，查询类别中是否包含姓名或公司名称。我要return公司名单

With the input value, query whether the category contains the name or the company name. I want to return the company list

php

laravel

eloquent

laravel-5

laravel-5.8