I have a Like Status button that sends data using AJAX to the controller.
When I click the button, the button changes from "like" to "dislike" and all the classes and form action get changed as well.
The problem is, if I like the status, I see the changes reflected, but if I decided to dislike it without reloading the page, I get this error
GET http://localhost/socialnet/public/likestatusCount/undefined 500 (Internal Server Error)
If I reload the page and click dislike, my vote gets removed from the database and the button changes back to "like"
It works if I reload the page.
If I remove the get() request to retrieves the likes count, nothing happens and console.log() returns an empty row, I don't see any data being returned.
I opened laravel.log and I saw this error
local.ERROR: exception 'ErrorException' with message 'Trying to get property of non-object' in C:\xampp\htdocs\socialnet\app\Http\Controllers\FeedController.php:140
which is this line in getlikesCounter() method
return Response::json(['count' => StatusLikes::where('status_id', $status->id)->count()]);
I am using Laravel 5.2
The form in the view
@if(\App\StatusLikes::where(['status_id' => $status->id, 'user_id' => Auth::user()->id])->first())
{!! Form::open(['action' => 'FeedController@dislikeStatus', 'id' => 'dislike_form', 'class' => 'dislikeform']) !!}
<button type="submit" class="btn btn-danger btn-xs dislike" data-user="" data-status="" id="dislike-status">
<i class="fa fa-thumbs-down"></i> <span class="dislike-button-text">Dislike</span> <span class="dislike-button-counter">()</span>
</button>
{!! Form::close() !!}
@else
{!! Form::open(['action' => 'FeedController@likeStatus', 'id' => 'like_form', 'class' => 'likeform']) !!}
<button type="submit" class="btn btn-info btn-xs like" data-user="" data-status="" id="like-status">
<i class="fa fa-thumbs-up"></i> <span class="like-button-text">Like</span> <span class="like-button-counter">()</span>
</button>
{!! Form::close() !!}
@endif
The methods in the controller for like, dislike, and get likes count
public function likeStatus() {
if (Input::has('like_status')) {
$status = Input::get('like_status');
$selectedStatus = Status::find($status);
$selectedStatus->likes()->create([
'user_id' => Auth::user()->id,
'status_id' => $status
]);
$response = [
'status' => 'success',
'msg' => 'You have liked this status',
];
return Response::json($response);
//return redirect(route('feed'));
}
}
public function dislikeStatus() {
if (Input::has('dislike_status')) {
$status = Input::get('dislike_status');
$selectedStatus = Status::find($status);
$selectedStatus->likes()->where('user_id', Auth::user()->id)->delete([
'status_id' => $status
]);
$response = array(
'status' => 'success',
'msg' => 'You have disliked this status',
);
return Response::json($response);
//return redirect(route('feed'));
}
}
public function getlikesCounter($id) {
$status = Status::find($id);
return Response::json(['count' => StatusLikes::where('status_id', $status->id)->count()]);
}
The javascript form likeform and dislikeform
$('.likeform').submit(function(e) {
e.preventDefault();
var submitBtn = $(this).find('.like');
var form = $(this).find('.likeform')
var likeText = $(this).find('span.like-button-text');
var likeCounter = $(this).find('span.like-button-counter');
var status_id = submitBtn.data('status');
var user_id = submitBtn.data('user');
var token = $('input[name=_token]').val();
$.ajaxSetup({
headers: {
'X-CSRF-TOKEN': token
}
});
$.ajax({
url: 'http://localhost/socialnet/public/likeStatus',
method: 'POST',
cache: false,
data: { like_status: status_id, user_id: user_id, _token: token },
success: function(data) {
submitBtn.removeClass('btn-info').addClass('btn-danger');
submitBtn.find($(".fa")).removeClass('fa-thumbs-up').addClass('fa-thumbs-down');
submitBtn.closest("form").removeClass('likeform').addClass('dislikeform').attr('id', 'dislike_form').attr('action', 'http://localhost/socialnet/public/dislikeStatus');
submitBtn.closest("form").find("input[name=like_status]").attr('name', 'dislike_status');
submitBtn.removeClass('like').addClass('dislike');
submitBtn.find($(".like-button-text")).removeClass('like-button-text').addClass('dislike-button-text');
submitBtn.find($(".like-button-counter")).removeClass('like-button-counter').addClass('dislike-button-counter');
likeText.text('Dislike');
$.get("http://localhost/socialnet/public/likestatusCount/" + status_id, function(data) {
likeCounter.text('(' + data.count + ')');
});
console.log(data);
},
error: function() {
console.log('error');
}
});
});
$('.dislikeform').submit(function(e) {
e.preventDefault();
var submitBtn = $(this).find('.dislike');
var form = $(this).find('.dislikeform')
var likeText = $(this).find('span.dislike-button-text');
var likeCounter = $(this).find('span.dislike-button-counter');
var status_id = submitBtn.data('status');
var user_id = submitBtn.data('user');
var token = $('input[name=_token]').val();
$.ajaxSetup({
headers: {
'X-CSRF-TOKEN': token
}
});
$.ajax({
url: 'http://localhost/socialnet/public/dislikeStatus',
method: 'POST',
cache: false,
data: { dislike_status: status_id, user_id: user_id, _token: token },
success: function(data) {
submitBtn.removeClass('btn-danger').addClass('btn-info');
submitBtn.find($(".fa")).removeClass('fa-thumbs-down').addClass('fa-thumbs-up');
submitBtn.closest("form").removeClass('dislikeform').addClass('likeform').attr('id', 'like_form').attr('action', 'http://localhost/socialnet/public/likeStatus');
submitBtn.closest("form").find("input[name=dislike_status]").attr('name', 'like_status');
submitBtn.removeClass('dislike').addClass('like');
submitBtn.find($(".dislike-button-text")).removeClass('dislike-button-text').addClass('like-button-text');
submitBtn.find($(".dislike-button-counter")).removeClass('dislike-button-counter').addClass('like-button-counter');
likeText.text('Like');
$.get("http://localhost/socialnet/public/likestatusCount/" + status_id, function(data) {
likeCounter.text('(' + data.count + ')');
});
console.log(data);
},
error: function() {
console.log('error');
}
});
});
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