Laravel 4.2和AJAX POST - 500内部服务器错误

Question

我对以下问题感到困惑:

我有一个看起来像这样的代码

<form action="{{ URL::route('user-send-message') }}" method="post" id="form-user-send-message">

@if( $user_message_block )
    <input id="msg-id" name="msg-id" type="hidden" value="{{ $user_message_block->id }}">
@else
    <input id="msg-id" name="msg-id" type="hidden" value="0">
@endif

    <input id="getter" name="getter" type="hidden" value="{{ $profile->user->username }}">
    <textarea id="user-message" name="user-message"></textarea>
    <button class="btn btn-success btn-xs pull-right" type="submit" name="btn-send-message">Send</button>
    <div class="clearfix"></div>
{{ Form::token() }}
</form>

<script type="text/javascript">
    jQuery(document).ready(function($){
        $('#form-user-send-message').on('submit', function(){          
           // ajax post method
            $.post(
                $(this).prop('action'),{
                    "_token": $( this ).find( 'input[name=_token]' ).val(),
                    "msg-id": $( '#msg-id' ).val(),
                    "getter": $( '#getter' ).val(),
                    "user-message": $( '#user-message' ).val()
                },
                function(data){
                    $(".message-area").append('<div class="message-user">' + data['who'] + ' said:</div>'
                        +'<div class="message-sent">' + data['when'] + '</div>'
                        +'<div class="message-viewed"><em>' + data['seen'] + '</em></div>'
                        +'<div class="clearfix"></div>'
                        +'<div class="message-text seen-no">' + data['text'] + '</div>');
                    $('.message-area').scrollTop($('.message-area')[0].scrollHeight);
                    $('#user-message').val('');
                },
                'json'
            ); 
            return false;
        }); 
    });
</script>

当我删除这部分代码

@if( $user_message_block )
    <input id="msg-id" name="msg-id" type="hidden" value="{{ $user_message_block->id }}">
@else
    <input id="msg-id" name="msg-id" type="hidden" value="0">
@endif

我用它替换它

<input id="msg-id" name="msg-id" type="hidden" value="{{ $user_message_block->id }}">

一切正常.

有没有关于If-else条件会影响AJAX产生500错误的事情.HTML呈现正确,

有人可能会为我解开这个问题.

谢谢!

这是我的网络错误预览

error: {type:Symfony\Component\Debug\Exception\FatalErrorException,…}
file: "F:\bol\app\controllers\ProfileController.php"
line: 384
message: "Call to a member function count() on a non-object"
type: "Symfony\Component\Debug\Exception\FatalErrorException"

Answer 1

转到调试工具 - >网络 - >单击红色500内部服务器错误,然后使用"预览"(如果在chrome上)编辑OP.