Hello there, How can filtering data of nested and many relations tables on this example

Models

Category

• has many nested categories with parent_id
• has many seeds
• has many feeds

Seed

• has many feeds
• belongs to one category

Feeds

• belongs to one category
• belongs to one seed

I'm using datatables JS with filtering form, this give me requists of many things like this

"item_id" => ""
"updated_date_from" => ""
"updated_date_to" => ""
"title" => ""
"childes_no_from" => ""
"childes_no_to" => ""
"seeds_no_from" => ""
"seeds_no_to" => ""
"feeds_no_from" => ""
"feeds_no_to" => ""
"status" => ""

I'm allready filtering the data ( just categories database table ) but not the related data on feeds and seeds

Here is my method

public function ajax(Request $request){
    $categories = new Category();
    if (Input::has('action')){
        $action = Input::get('action');
        if ($action == 'filter'){
            if(Input::has('item_id')){
                $categories =  $categories->where('id', '=', Input::get('item_id'));
            }
            if(Input::has('updated_date_from')){
                $categories =  $categories->where('updated_at', '>', Carbon::createFromFormat('d/m/Y',Input::get('updated_date_from')));
            }
            if(Input::has('updated_date_to')){
                $categories =  $categories->where('updated_at', '<', Carbon::createFromFormat('d/m/Y',Input::get('updated_date_to')));
            }
            if(Input::has('title')){
                $categories =  $categories->where('title', 'LIKE', '%'.Input::get('title').'%');
            }
            if(Input::has('status')){
                $categories =  $categories->where('status', '=', Input::get('status'));
            }

            // childes_no_from
            // childes_no_to
            // seeds_no_from
            // seeds_no_to
            // feeds_no_from
            // feeds_no_to
        }
    }
    $categories = $categories->orderBy($this->columns_list[$_REQUEST['order'][0]['column']], $_REQUEST['order'][0]['dir'])
        ->limit($_REQUEST['length'])->offset($_REQUEST['start'])
        ->get();
    $categories_count = Category::all()->count();
    $sEcho = intval($_REQUEST['draw']);
    $records = array();
    $records["data"] = array();
    foreach ($categories as $category) {
        $records["data"][] = array(
            '<label class="mt-checkbox mt-checkbox-single mt-checkbox-outline"><input name="id[]" type="checkbox" class="checkboxes" value="'.$category['id'].'"/><span></span></label>',
            $category['id'],
            isset($category['updated_at']) ? $category->updated_at->diffForHumans() : $category->created_at->diffForHumans() ,
            ($category->parent['title'] ) ? $category->parent['title'].' - '.$category['title'] :  $category['title'],
            $category->children()->count(),
            $category->seeds()->count(),
            $category->feeds()->count(),
            '<span class="label label-sm label-'.key($this->status_list[$category['status']]).'">'.
            current($this->status_list[$category['status']]).
            '</span>',
            '<a href="'.route('categories.show',['id'=>$category['id']]).'" class="btn btn-sm btn-outline btn-success "><i class="fa fa-search"></i> Show</a>'
            .'<a href="'.route('categories.edit',['id'=>$category['id']]).'" class="btn btn-sm btn-outline btn-warning "><i class="fa fa-pencil-square-o"></i> Edit</a>'
            .'<a href="'.route('categories.destroy',['id'=>$category['id']]).'" class="btn btn-sm btn-outline btn-danger "><i class="fa fa-times"></i> Delete</a>'

        ); // row data
    }
    $records["draw"] = $sEcho;
    $records["recordsTotal"] = $categories_count;
    if(isset($_REQUEST['action']) && $_REQUEST['action'] == 'filter') {
        $records["recordsFiltered"] = $categories->count();
    }else{
        $records["recordsFiltered"] = $categories_count;
    }
    return json_encode($records);
}