Question

我试图在Laravel 4.2中为特色/非特色产品制作功能，但我收到错误

调用未定义的方法Illuminate \ Database \ Query \ Builder :: save（）

这是我的控制器功能

public function featuredProduct() {

    $product_featured_id = Input::get('featured');

    $product = Product::where('product_id', $product_featured_id);

    Product::where('featured', 1)->update(['featured' => 0]); // make all other products featured -> 0

    $product->featured = 1;
    $product->save();
    return Redirect::to('/admin/products')->with('message', 'Product marked as featured!');
}

这是视图中的表单

{{ Form::open(['url' => '/admin/products/feature', 'method' => 'post']) }}

    <div class="form-group">
        <select class="form-control" name="featured">
            <option value="0">Remove from Featured</option>
                @foreach($products as $featured)

                    <option value="{{ $featured->product_id }}" {{ $featured->featured == 1 ? "selected" : ""}}>{{ $featured->title }}</option>
                @endforeach
        </select>
    </div>
    <button type="submit" class="btn btn-primary">Make Product Featured</button>
{{ Form::close() }}

在包含产品的表格中，我的列为特色产品保存1，而非特色产品保存0。

我在这里错过了什么？

更新

public function featuredProduct() {

    $product_featured_id = Input::get('featured');

    if($product_featured_id == 0)
    {
        Product::where('featured', 1)->update(['featured' => 0]); // make all other products featured -> 0
    }
    else 
    {
        $product = Product::where('product_id', $product_featured_id)->first();
        Product::where('featured', 1)->update(['featured' => 0]); // make all other products featured -> 0

        $product->featured = 1;
        $product->save();
    }

    return Redirect::to('/admin/products')->with('message', 'Product marked as featured!');
}

Answer 1

添加->first()方法调用：

$product = Product::where('product_id', $product_featured_id)->first();

在这种情况下，您将获得一个对象而不是Query Builder的实例。

使产品成为特色/没有Laravel特色

1 个答案: