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Php 创建集合后删除Laravel查询结果&;翻页虫?_Php_Database_Laravel_Collections_Eloquent - Fatal编程技术网

Php 创建集合后删除Laravel查询结果&;翻页虫?

Php 创建集合后删除Laravel查询结果&;翻页虫?,php,database,laravel,collections,eloquent,Php,Database,Laravel,Collections,Eloquent,这个查询可以工作并返回我想要的结果,但一旦转换为集合或尝试“分页”,它将返回一个空结果。我尝试了对一个简单的DB::table('users')->paginate(5)[0]进行分页,但效果很好,所以我猜它不是来自分页本身 代码 $photographers_available = Photographer::where('is_photographer', '=', '1') ->where(function($q)use($city_id)

这个查询可以工作并返回我想要的结果,但一旦转换为集合或尝试“分页”,它将返回一个空结果。我尝试了对一个简单的
DB::table('users')->paginate(5)[0]
进行分页,但效果很好,所以我猜它不是来自分页本身

代码

$photographers_available =  Photographer::where('is_photographer', '=', '1')
          ->where(function($q)use($city_id)
              {
            $q->whereHas('studioAddress', function($q)use($city_id)
         {
              $q->where('city_id', '=', $city_id);
         })
         ->orWhereHas('user', function($q)use($city_id)  // TK could reduce to 'user.address' I think
             { 
                $q->whereHas('address', function($q)use($city_id) 
              {
                 $q->where('city_id', '=', $city_id);
              });
             });
        })
          ->whereHas('stypesPhotographer', function($q)use($stype)
          {
        $q->where('shooting_type_id', '=', $stype);
          }) 
          ->whereHas('availabilities', function ($q) use ($selected_date_time)
              {
        $q->where('unavailable_start_date', '<', $selected_date_time)
          ->where('unavailable_end_date', '>', $selected_date_time);
        }, '=', 0)
          ->whereHas('bookings', function($q)use($selected_date_time)
              {
            $q->where('booking_date', '=', $selected_date_time);
        }, '=', 0)
          ->join('stypes_4_photographer', function($join)use($stype)
          {
            $join->on('photographer_id', '=', 'photographers.id')
               ->where('shooting_type_id', '=', $stype);
          });
 $photobla = $photographers_available->first();
 echo '<pre>';print_r($photobla);
 // RETURNS RESULTS CORRECTLY
 $photoTEST = $photographers_available->get();
 echo '<pre>';print_r($photoTEST);die();
 // RETURNS $photoTEST as NULL.....
 // WHY has $photographers_available BEEN EMPTIED?????
因此,您可以看到,
$photophers\u可用
刚在
->first()之后清空。最重要的是,即使在初始查询中直接使用paginate,它也无法工作

我建议你这样做(不要先打电话):

或者
return
这个东西,而不是
echo whataver
,因为这不是方法。在控制器中输出类似的内容会中断应用程序流



回答您遇到的问题,如评论中所述:将laravel/framework恢复到以前的版本(在本地/dev服务器中)

Hi@jarek,我不确定我是否在关注您的问题。如果我做dd($摄影师可用->获取());是的,它会起作用的。我对第一个和第二个进行了排序和输出,以测试和发现问题。但是dd($Pictures_available->paginate(5)[0])返回未定义的偏移量:0您在那里有很多连接,这可能会破坏
Paginator
功能,因为它有时与连接有关。谢谢,这很奇怪,因为在我昨天运行composer更新之前,它正在工作。。。。我能做些什么来修复它呢?在你的
composer.json中使用
require:{Laravel/framework:“4.2.YOUR\u VER”…
恢复以前的Laravel版本问题是我部署了应用程序,所以服务器运行的是最新版本,不能让他返回…有办法解决吗?:0
// $photobla result
Photographer Object
(
    [fillable:protected] => Array
        (
            [0] => id
            [1] => is_photographer
            [2] => service_description
            [3] => radius_around_city_available
            [4] => tax_nbr
            [5] => user_id
            [6] => average_score
        )

    [table:protected] => photographers
    [touches:protected] => Array
        (
            [0] => stypesPhotographer
        )

    [connection:protected] => 
    [primaryKey:protected] => id
    [perPage:protected] => 15
    [incrementing] => 1
    [timestamps] => 1
    [attributes:protected] => Array
        (
            [id] => 677
            [is_photographer] => 1
[ETC>>>>>>>>]
         )
    [original:protected] => Array
        (
            [id] => 677
            [is_photographer] => 1
[ETC>>>>>>>>]
 )

    [relations:protected] => Array
        (
        )

    [hidden:protected] => Array
        (
        )

    [visible:protected] => Array
        (
        )

    [appends:protected] => Array
        (
        )

    [guarded:protected] => Array
        (
            [0] => *
        )

    [dates:protected] => Array
        (
        )

    [observables:protected] => Array
        (
        )

    [with:protected] => Array
        (
        )

    [morphClass:protected] => 
    [exists] => 1
)

// THE $photoTEST result:
Illuminate\Database\Eloquent\Collection Object
(
    [items:protected] => Array
        (
        )

)
$photographers_available; // it is a query, consider other name

$photographers_available->first(); 
// set limit 1 on the query and return it's result

$photographers_available->get(); 
// returns the query result (remember limit 1 above..)

$photographers_available->paginate(); 
// return the query result paginated (ignoring limit 1 above)
dd($photographers_available->get());