我是一名初级程序员，我的代码有一些问题。当我在laravel 5.7中使用Ajax调用数据时，有时成功并获得了数据。。但是当我再次尝试刷新时，有时不完整，并且在日志中错误500是我的php。当我再次尝试刷新数据时，成功了。有人可以帮助我吗？谢谢
这是示例错误日志 example error on my log
并再次刷新，日志工作正常 enter image description here
.. 这是我认为的代码
例如其中一个
{{-- GROUP CHAT FRIEND --}}
@auth
load_grup();
//
function load_grup()
{
var gpage = {{ (isset($_GET['gpage'])) ? $_GET['gpage'] : '0' }}
$.ajax({
type : 'GET',
url : "{{ url('json/group_chat?gpage=') }}"+parseInt(gpage),
success : function (data) {
var options = "";
var arsip = "";
for (var i = 0; i < data.length; i++) {
if(data[i].status == '1')
{
status = '<span class="ml-auto badge badge-success">Online</span>';
}
else
{
status = '<span class="ml-auto badge badge-secondary">Offline</span>';
}
options += `
<tr class="`;
if(data[i].count > 0)
{
options += 'bg-secondary';
}
options +=`">
<td> </td>
<td>
<a href="{{url('chat/group')}}/`+data[i].room_id+`" class="font-weight-bold text-dark"> `+ data[i].name +` </a> <span class="badge badge-danger"> `+data[i].count+` </span> <br>
<a href="{{url('chat/group')}}/`+data[i].room_id+`" class="text-dark">
`;
if(data[i].body != null)
{
options += ``+data[i].body+``;
}
options +=`
</a> <br>
`+data[i].time+`
</td>
</tr>
`;
arsip += `
<li class="list-group-item `;
if(data[i].count > 0)
{
arsip += 'bg-secondary';
}
arsip += `">
<div class="row">
<div class="col-md-2">
</div>
<div class="col-md-10">
<span class="font-weight-bold">
<a href="{{url('chat/group')}}/`+data[i].room_id+`" class="text-dark"> `+data[i].name+` </a>
<span class="badge badge-danger">`+data[i].count+`</span>
<div class="row">
<label for="" class="ml-auto mr-3">`+data[i].time+`</label>
</div>
</span>
<article class="article">
<a href="{{url('chat/group')}}/`+data[i].room_id+`" class="text-dark"> `;
if(data[i].body != null)
{
arsip += ``+data[i].body+``;
}
arsip += ` </a>
</article>
</div>
</div>
</li>
`;
}
if(data[0].pagination != 0)
{
$("#group_chat-list").html(options);
$("#arsip-group_chat").html(arsip);
}
// CREATE PAGINATION
var before_page = {{(isset($_GET['gpage']) ? $_GET['gpage'] : '0' )}};
var page_chat = ``;
page_chat+=`<a `;
var be_page = parseInt(before_page);
if(be_page == 0)
{
page_chat +=`href="{{url('chat/group')}}" class="btn btn-link text-secondary" style="cursor:default;"`;
}
else if(be_page > 0)
{
page_chat +=`href="{{url('chat/group')}}`+ (parseInt(before_page-1) == 0 ? '' : `?gpage=`+parseInt(before_page-1)) +`" class="btn btn-link `+(parseInt(before_page-1) == 0 ? 'text-secondary' : '')+`"`;
}
page_chat += `>Sebelumnya</a>
<a `;
var be_page = parseInt(before_page);
if(parseInt(before_page * 5) >= data[0].pagination)
{
page_chat += `class="btn btn-link text-secondary" style="cursor:default;"`;
}
else
{
page_chat += `class="btn btn-link" href="{{url('chat/group')}}?gpage=`+ (parseInt(before_page+1) == 1 ? 2 : parseInt(before_page+1) ) +`"`;
}
page_chat += `>Selanjutnya</a>
`;
if(data[0].pagination >= 5)
{
$("#page_group").html(page_chat);
}
}
});
}
</script>
@endauth
然后是我的控制器
public function group_chat(){
$number = 0;
if(isset($_GET['gpage']))
{
$number = $_GET['gpage']-1;
}
// LIMIT 5
$offset = 5;
// CREATE PAGINATE GROUP
$room_names = User_room::select("users__room.id as id")
->join('users__room_chat_partisipants', 'users__room_chat_partisipants.user_room_id', '=', 'users__room.id')
->leftjoin('users__room_chat', 'users__room_chat.user_room_id', '=','users__room.id')
->leftjoin('users__room_chat_documentation', 'users__room_chat_documentation.user_room_chat_id', '=','users__room_chat.id')
->where('users__room.name', 'not like', '%-%')
->where('users__room_chat_partisipants.user_id', '=', Auth::user()->id)
->orderBy('users__room_chat.id', 'desc')
->groupBy('users__room.id')
->skip($offset * $number)
->take($offset)
->get();
$count_page = User_room::select("users__room.id")
->join('users__room_chat_partisipants', 'users__room_chat_partisipants.user_room_id', '=', 'users__room.id')
->leftjoin('users__room_chat', 'users__room_chat.user_room_id', '=','users__room.id')
->leftjoin('users__room_chat_documentation', 'users__room_chat_documentation.user_room_chat_id', '=','users__room_chat.id')
->where('users__room.name', 'not like', '%-%')
->where('users__room_chat_partisipants.user_id', '=', Auth::user()->id)
->orderBy('users__room_chat.id', 'desc')
->groupBy('users__room.id')
->get();
$x= 0;
foreach($room_names as $field)
{
$room_fix = User_room_chat::select('*')
->where('user_room_id', $field['id'])
->orderBy('users__room_chat.id','desc')
->first();
$room_name[$x]['id_chat'] = $room_fix['id'];
$x++;
}
$room_namex = array();
$k = 0;
rsort($room_name);
foreach($room_name as $chat_id)
{
$room_fix = User_room::select('users__room_chat.body', 'users__room.id as room_id', 'users__room_chat.created_at', 'users__room.name')
->leftjoin('users__room_chat', 'users__room.id', '=', 'users__room_chat.user_room_id')
->where('users__room_chat.id', $chat_id['id_chat'])
->orderBy('users__room_chat.id','desc')
->first();
$chat_notif = User_room_chat::select("id")
->where('user_room_id', $room_fix['room_id'])
->where('user_id', '!=', Auth::user()->id)
->where('open', '=', '0')
->count();
$room_namex[$k]['body'] = $room_fix['body'];
$room_namex[$k]['room_id'] = $room_fix['room_id'];
$room_namex[$k]['time'] = '';
if($room_fix['created_at'] != null)
{
$room_namex[$k]['time'] = $room_fix['created_at']->diffForHumans();
}
$room_namex[$k]['name'] = $room_fix['name'];
$room_namex[$k]['count'] = $chat_notif;
$k++;
}
$room_namex[0]['pagination'] = COUNT($count_page);
return response()->json($room_namex);
}
答案 0 :(得分：0)
您可以调试将其添加到ajax函数中的错误：
error: function(xhr, error){
console.debug(xhr);
console.debug(error);
}
这将准确显示后端发生的情况。希望对您有帮助。