Laravel 高级搜索查询修复

Laravel advanced search query fix

我有一个包含多个输入和 select 个框的搜索表单,我需要帮助来获取查询中的 if 条件,以便每个部分单独且同时工作。

这是我的 blade 代码:

<form action="{{route('advancesearch')}}" method="post">
      {{csrf_field()}}
      <div class="sidebar-title">
        <span>Advanced Search</span>
        <i class="fa fa-caret-down show_sidebar_content" aria-hidden="true"></i>
      </div>
      <!-- ./sidebar-title -->

      <div id="tags-filter-content" class="sidebar-content">
        <div class="filter-tag-group">

          @foreach($options as $option)
          <div class="tag-group">
            <p class="title">
              <span class="filter-title show_filter_content">{{$option->title}} <span class="pull-right"><i class="fa fa-minus"></i></span></span>
            </p>
            <div class="filter-content">
              <div class="checkbox">
              @foreach($option->suboptions as $suboption)
              <label for="suboptions">
                <input name="suboptions[]" type="checkbox" value="{{$suboption->id}}">
                {{ucfirst($suboption->title)}}
              </label>
              @endforeach
            </div>
          </div>
          </div>
          @endforeach
          <!-- ./tag-group -->

          <div class="tag-group">
            <p class="title">
              <span class="filter-title show_filter_content">Brand <span class="pull-right"><i class="fa fa-minus"></i></span></span>
            </p>
            <div class="filter-content">
              <div class="checkbox">
              @foreach($brands as $brand)
              <label for="brands">
                <input name="brands[]" type="checkbox" value="{{$brand->id}}">
                {{$brand->title}}
              </label>
              @endforeach
            </div>
          </div>
          </div>
          <!-- ./tag-group -->

          <div class="tag-group">
            <p class="title">
              <span class="filter-title show_filter_content">Price Range <span class="pull-right"><i class="fa fa-minus"></i></span></span>
            </p>
            <div class="row filter-content">
              <div class="col-md-6">
                <div class="form-group">
                  <label for="min_price" hidden>Min</label>
                  <input type="text" name="min_price" class="form-control" placeholder="Rp Min">
                </div>
              </div>
              <div class="col-md-6">
                <div class="form-group">
                  <label for="max_price" hidden>Max</label>
                  <input type="text" name="max_price" class="form-control" placeholder="Rp Max">
                </div>
              </div>
            </div>
          </div>
          <!-- tag-group -->

          <div class="text-center mt-20">
            <button type="submit" class="btn btn-danger">TERPAKAN</button>
          </div>

        </div><!-- ./filter-tag-group -->
      </div><!-- ./sidebar-content -->
    </form>

这是我的路线:

Route::post('/advanced-search', 'frontend\SearchController@filter')->name('advancesearch');

最后我的函数代码是:

public function advancedsearch(Request $request) {
        $brands = Brand::all(); // uses for other part of the page. (not related to search function)
        $options = Option::all(); // uses for other part of the page. (not related to search function)
        $suboptions = DB::table('product_suboption'); // where my product_id and subopyion_id saves

        //search function
        $products = Product::where(function($query){
            //getting inputs
            $suboptions2 = Input::has('suboptions') ? Input::get('suboptions') : [];
            $min_price = Input::has('min_price') ? Input::get('min_price') : null;
            $max_price = Input::has('max_price') ? Input::get('max_price') : null;
            $brands2 = Input::has('brands') ? Input::get('brands') : [];

            //returning results
            $query->where('price','>=',$min_price)
                    ->where('price','<=',$max_price);
            })->get();

        return view('front.advancesearch', compact('products', 'brands', 'options'));
    }

我的模特关系:

product 型号:

public function options(){
     return $this->belongsToMany(Option::class);
  }
  public function suboptions(){
     return $this->belongsToMany(Suboption::class, 'product_suboption', 'product_id', 'suboption_id');
  }
public function brand(){
     return $this->belongsTo(Brand::class);
  }

Option 型号:

public function suboptions(){
     return $this->hasMany(Suboption::class, 'option_id');
  }

  public function products(){
     return $this->belongsToMany(Product::class);
  }

Suboption 型号:

public function option(){
     return $this->belongsTo(Option::class, 'option_id');
  }

  public function products(){
     return $this->belongsToMany(Product::class);
  }

Brand 型号:

public function products(){
     return $this->hasMany(Product::class);
}

注意

我的 brands 搜索来自产品 table,其中每个产品都有 brand_id 列。

但是

我的 suboptions 来自名为 product_suboption 的第 3 个 table(如您在我的模型代码中所见),我在其中保存了 product_idsuboption_id

这只是提供一个想法。您可以为查询使用多个 ->where() 和预加载 ->with()。 看看下面这个查询:

$products = Product::where('price', '>=', $min_price) // you get the max and min price 
        ->where('id', '<=', $max_price)->select('id')
        ->with([
            "brand" => function ($query) {
                $query->whereIn('id', $brand_ids); // [1, 2, 3,...]
            },
            "specifications" => function ($query) {
                $query->where('some_column', '=', 'possible-value'); // single condition
            },
            "specifications.subspecifications" => function ($query) {
                $query->where([
                    'some_column' => 'possible-value',
                    'another_column' => 'possible-value'
                ]); // you can also pass arrays of condition
            }
        ])->get(); // This will return the products with the price set by the user
                   // Since we're just using ->with(), this will also return those products
                   // that doesn't match the other criteria specifications) so we 
                   // still need to filter it.

最后,您可以过滤符合specifications的产品, - 带有空 specificationsproduct 表示此产品不符合标准,因此我们必须将其从 collection.

中删除
$filtered =  $products->filter(function ($product, $key) {
    return count($product->brand) > 0 && count($product->specifications) > 0;
    // add your other boolean conditions here
});

dd($filtered->toArray()); // your filtered products to return

您可以使用 laravel orWhereorWhereHas 分别并同时获得结果,假设您没有 select min_pricemax_price 但您已经 select 编辑了 brand 那么所有具有此品牌名称的产品都应该是 return,您的查询将如下所示

$products = Product::orWhere('price','>=',$min_price)
->orWhere('price','<=',$max_price)
->orWhereHas('brand',function($query){
    $query->whereIn('id', $brand_ids);
})
->orWhereHas('suboptions',function($query){
    $query->whereIn('id', $suboptions_ids);
})
->orWhereHas('subspecifications',function($query){
    $query->whereIn('id', $subspecifications_ids);
})->get(); 

$products 如果满足上述查询中所述的任何条件,将有产品集合。

希望对您有所帮助。

这是我的做法。请注意使用 when 来简化可选的 where 条件(也不需要设置变量),以及用于约束 whereHaswith 的闭包(如果你想预先加载关系)。

$products = Product::query()
    ->when($request->min_price, function ($query, $min_price) {
        return $query->where('price', '>=', $min_price);
    })
    ->when($request->max_price, function ($query, $max_price) {
        return $query->where('price', '<=', $max_price);
    })
    ->when($request->suboptions, function ($query, $suboptions) {
        $suboptionsConstraint = function ($q) use ($suboptions) {
            return $q->whereIn('id', $suboptions);
        };
        return $query->whereHas('suboptions', $suboptionsContraint)
            ->with(['suboptions' => $suboptionsContraint]);
    })
    ->when($request->brands, function ($query, $brands) {
        $brandsConstraint = function ($q) use ($brands) {
            return $q->whereIn('id', $brands);
        };
        return $query->whereHas('brands', $brandsConstraint)
            ->with(['brands' => $brandsConstraint]);
    });

我建议采用不同的方法。

在您的控制器上,将其更改为:

public function advancedsearch(Request $request) {

$suboptions2 = request->suboptions ? request->suboptions : null;
$min_price = request->min_price ? request->min_price : null;
$max_price = request->max_price ? request->max_price : null;
$brands2 = request->brands ? request->brands : null;

$query = Product::select('field_1', 'field_2', 'field_3')
->join('brands as b', 'b.id', '=', 'products.brand_id')
...(others joins);

// here we do the search query
if($suboptions2){
    $query->where('suboptions_field', '=', $suboptions);
}

if($min_price && $max_price){
    $query->where(function($q2) {
                $q2->where('price', '>=', $min_price)
                    ->where('price', '<=', $max_price)
            });

}

if($brands2){
    $query->where('products.brand_id', '=', $brands2);
}

// others queries

// finish it with this
$query->get();

return view('front.advancesearch', compact('products', 'brands', 'options'));

我发现这样做非常有用,因为它可以非常容易地实现额外的查询。

我建议你使用每个分隔符,它可以帮助你轻松地操作代码

作为您的典型条件,您的 sub_option 来自第三个 table 使用最后一个关系船。

 if(count($request['suboptions'])) {

         $product->whereHas('options',function($options) use ($request) {

                   $options->whereHas('suboptions',function($suboption)use($request) {

                         $suboption->whereIn('id',$request['suboptions']);
                  });
         }); 
 }

对于最低价最高价,我假设你的产品价格table

   if(! empty($request['min_price'])) {

          $product->where('price','>=',$request['min_price']);
    }

 if(! empty($request['max_price'])) {

          $product->where('price','<=',$request['max_price']);
    }

如您所说的品牌 brand_id 产品中的列 table 然后

   if(count($request['brands'])) {

          $product->whereIn('brand_id',$request['brands']);
    } 

这是我使用 laravel eloquent 进行多输入搜索的方法:

$input = Input::all(); //group all the inputs into single array
$product = Product::with('options','suboptions','brand');

//looping through your input to filter your product result
foreach ($input as $key => $value)
{
    if ($value!='') {
       if ($key == "max_price")
            $product = $product->where('price','<=', $value);
       elseif ($key == "min_price")
            $product = $product->where('price','>=', $value);
       elseif ($key == "brands")
            $product = $product->whereIn('brand_id', $value); //assuming that your Input::get('brands') is in array format
       elseif ($key == "suboptions")
            $product = $product->whereIn('suboption_id', $value);
    }
}
$product = $product->get();

如果没有提交输入,上面的方法将 return 所有产品,如果可用,将根据输入过滤结果,最重要的是,在输入之前通过验证清理输入也是一个好习惯继续查询

已解决

经过数周的代码尝试,我终于为自己得出了正确的结果(在我的例子中,它对其他人来说是这样工作的,也许与其他建议的答案一起工作)

public function advancedsearch(Request $request) {
    $options = Option::all();
    $brands = Brand::all();
    $brandss = Input::has('brands') ? Input::get('brands') : [];
    $suboption = Input::has('suboptions') ? (int)Input::get('suboptions') : [];
    $min_price = Input::has('min_price') ? (int)Input::get('min_price') : null;
    $max_price = Input::has('max_price') ? (int)Input::get('max_price') : null;

    //codes
    if(count($request['suboptions'])){
      $products = DB::table('products')
      ->join('product_suboption', function ($join) {
        $suboption = Input::has('suboptions') ? Input::get('suboptions') : [];
            $join->on('products.id', '=', 'product_suboption.product_id')
                 ->where('product_suboption.suboption_id', '=', $suboption);
        })
      ->paginate(12);
    }

    elseif(count($request['brands'])){
      $products = DB::table('products')
      ->whereIn('products.brand_id', $brandss)
      ->paginate(12);
    }

    elseif(count($request['min_price']) && count($request['max_price'])){
      $products = DB::table('products')
      ->whereBetween('price', [$min_price, $max_price])
      ->paginate(12);
    }


    return view('front.advancesearch', compact('products', 'brands', 'options'));
    }

NOTE: most of my pricing issues solved with (int) as you see in my codes (int)Input::get('min_price') and (int)Input::get('max_price').

特别感谢 Ravindra Bhandericount($request[''] 建议。

使用 treats 进行动态搜索非常简单,我们可以将其用于所有模型我尽可能地动态化

这是任何模型都可以使用的特征

此函数将删除项目中的代码重复

public function scopeSearch($query, $keyword, $columns = [], $relativeTables = [])
{
    if (empty($columns)) {
        $columns = array_except(
            Schema::getColumnListing($this->table), $this->guarded
        );
    }   

    $query->where(function ($query) use ($keyword, $columns) {
        foreach ($columns as $key => $column) {
            $clause = $key == 0 ? 'where' : 'orWhere';
            $query->$clause($column, "LIKE", "%$keyword%");

            if (!empty($relativeTables)) {
                $this->filterByRelationship($query, $keyword, $relativeTables);
            }
        }
    });

    return $query;
}

也过滤关系

private function filterByRelationship($query, $keyword, $relativeTables)
{
    foreach ($relativeTables as $relationship => $relativeColumns) {
        $query->orWhereHas($relationship, function($relationQuery) use ($keyword, $relativeColumns) {
            foreach ($relativeColumns as $key => $column) {
                $clause = $key == 0 ? 'where' : 'orWhere';
                $relationQuery->$clause($column, "LIKE", "%$keyword%");
            }
        });
    }

    return $query;
}