laravel 中的多查询搜索

Question

我尝试获取多个输入的搜索结果，并在用户没有为某些输入设置任何值的情况下生成语句以获取或忽略任何输入。

逻辑

用户将：

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

代码

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

很遗憾我没有任何搜索功能，that's why I asked here 需要帮助

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

route

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

Answer 1

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();

Answer 2

$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();