laravel中的多个查询搜索

Question

我尝试在多个输入上获取搜索结果，并且如果用户没有为某些输入设置任何值，则使语句获取或忽略任何输入。

逻辑

用户将：

1. 选择category
2. 选择Subcategory
的category
3. 从Specification中选择brand或both或products 子类

到目前为止我所做的是从上面的逻辑中获取所有信息， 我需要的是从该数据中搜索的功能 。

码

Form

<form action="{{route('finderfunction')}}" class="mt-20">
                {{csrf_field()}}
                <div class="col-md-3">
                    <label for="category_id">category</label>
                    <select name="category_id" class="form-control">
                        <option value="">Select Category</option>
                        @foreach($categories as $category)
                            <option value="{{$category->id}}">{{$category->title}}</option>
                        @endforeach
                    </select>
                </div><!-- end col-md-3 -->
                <div class="col-md-3">
                    <label for="subcategory_id">subcategory</label>
                    <select name="subcategory_id" class="form-control">
                        <option value="">Select Subcategory</option>
                    </select>
                </div><!-- end col-md-3 -->
                <div class="col-md-3">
                    <label for="specification_id">specifications</label>
                    <select name="specification_id" class="form-control">
                        <option value="">Select Specification</option>
                    </select>
                </div><!-- end col-md-3 -->
                <div class="col-md-3">
                    <label for="brand_id">brands</label>
                    <select name="brand_id" class="form-control">
                        <option value="">Select Brand</option>
                    </select>
                </div><!-- end col-md-3 -->
                <div class="row">
                    <div class="col-md-3 col-md-offset-9">
                        <button style="margin: 20px;" class="pull-right btn btn-info" type="submit">Find</button>
                    </div>
                </div>
              </form>

JavaScript

<!-- get subcategories -->
<script type="text/javascript">
  $(document).ready(function() {
    $('select[name="category_id"]').on('change', function() {
      var categoryID = $(this).val();
      if(categoryID) {
      $.ajax({
        url: '{{ url('getSubCategories') }}/'+encodeURI(categoryID),
        type: "GET",
        dataType: "json",
        success:function(data) {
        $('select[name="subcategory_id"]').empty().append("<option value='' selected>Select</option>");
        $.each(data, function(key, value) {
            $('select[name="subcategory_id"]').append('<option value="'+ value['id'] +'">'+ value['title'] +'</option>');
            });
        }
      });
      }else{
        $('select[name="subcategory_id"]').empty().append("<option value='' selected>Select</option>");
      }
    });
  });
</script>
<!-- get specifications -->
<script type="text/javascript">
  $(document).ready(function() {
    $('select[name="subcategory_id"]').on('change', function() {
      var subcategoryID = $(this).val();
      if(subcategoryID) {
      $.ajax({
        url: '{{ url('getspecifications') }}/'+encodeURI(subcategoryID),
        type: "GET",
        dataType: "json",
        success:function(data) {
            $('select[name="specification_id"]').empty().append("<option value='' selected>Select</option>");
            $.each(data, function(key, value) {
                  $('select[name="specification_id"]').append(
                        "<option class='form-control' value='"+ value['id'] +"'>"+ value['title'] +"</option>");
            });
        }
      });
      }else{
        $('select[name="specification_id"]').empty().append("<option value='' selected>Select</option>");
      }
    });
  });
</script>
<!-- get brands -->
<script type="text/javascript">
  $(document).ready(function() {
    $('select[name="subcategory_id"]').on('change', function() {
      var subcategoryID = $(this).val();
      if(subcategoryID) {
      $.ajax({
        url: '{{ url('getbrands') }}/'+encodeURI(subcategoryID),
        type: "GET",
        dataType: "json",
        success:function(data) {
        $('select[name="brand_id"]').empty().append("<option value='' selected>Select</option>");
        $.each(data, function(key, value) {
            $('select[name="brand_id"]').append('<option class="form-control" value="'+ value['id'] +'">'+ value['title'] +'</option>');
            });
        }
      });
      }else{
        $('select[name="brand_id"]').empty().append("<option value='' selected>Select</option>");
      }
    });
  });
</script>

截图：



Search function

很遗憾，我在此数据中没有任何搜索功能，that's why I asked here 需要帮助才能实现

public function finderfunction(Request $request) {
        //
}

route

Route::any('/finder', 'frontend\SearchController@finderfunction')->name('finderfunction');

Answer 1

$post = $request->all(); //Initialize the request
$test = DB::table('products')
->where('subcategory_id','=',$post['subcategory_id']);

if(isset($post['specification_id']) && !(isset($post['brand_id'])))
{
$test= $test->where('subspecification_id','=',$post['specification_id']);
}
elseif(!(isset($post['specification_id'])) && isset($post['brand_id']))
{
$test= $test->where('brand_id','=',$post['brand_id']);
}
else
{
$test= $test->where('subspecification_id','=',$post['specification_id'])
->where('brand_id','=',$post['brand_id']);
}

$test = $test->get();

Answer 2

试试这个

return DB::table('products')
        ->where(function($query) use ($request){
          if($request->has('category')){
                        $query->where('category','=',$request->category);
                    }
                    if($request->has('subcategory')){
                        $query->where('subcategory','=',$request->subcategory);
                    }
                 })
                 ->where(function($query) use($request){
                    if($request->has('specifications') && $request->has('brands')){
                        $query->where('specifications','=',$request->specifications)->where('brands','=',$request->brands); // comes specifications and brand
                    }
                    if($request->has('specifications')){
                        $query->orWhere('specifications','=',$request->specifications);
                    }
                    if($request->has('brands')){
                        $query->orWhere('brands','=',$request->brands);
                    }
                 })->get();