javascript - 来自 MySQL 的 JSON 提要有效，但不能超过 x 条记录

Question

我正在尝试让 FullCalendar 与我的 MySQL 数据库一起工作。当我将查询限制为 25 条记录时，此方法有效。当我将我的 sql 查询更改为限制为 35 条记录时，Fullcalendar 不会添加任何事件并且基本上会继续加载。

我用 firebug 检查了 JSON 响应是什么，两次都是完整的。

一开始我以为是SQL查询的问题。数据库有 5000 多条记录，但 JSON 响应加载时间不到 200 毫秒。

我正在使用演示 json.html 文件进行测试。将在此处发布函数:

<script type='text/javascript'>
$(document).ready(function() {
    $('#calendar').fullCalendar({
        editable: true,
        events: "json-events.php",
        eventDrop: function(event, delta) {
            alert(event.title + ' was moved ' + delta + ' days\n' +
                '(should probably update your database)');
        },

        loading: function(bool) {
            if (bool) $('#loading').show();
            else $('#loading').hide();
        }
    });
});
</script>

这是我的 json-events.php

<?php
    $conn = mysql_connect("") or die ("Unable to connect to MySQL server.");

    $Exec = mysql_query("select Brand, date_in from planning ORDER BY date_in Desc Limit 35",$conn) or die(mysql_error());
    mysql_close();

    $events = array();

    while($row = mysql_fetch_assoc($Exec)) {
        $eventArray['title'] = $row['Brand'];
        $eventArray['start'] = $row['date_in'];
        $eventsArray['allDay'] = "";
        $events[] = $eventArray;
    }

    header('Content-type: application/json');

    echo json_encode($events);
?>

这是 JSON 响应:

[{"title":"Volkswagen Passat","start":"2011-04-28"},{"title":"Seat Alhambra","start":"2011-04-28"},{"title":"Ford Focus","start":"2011-04-20"},{"title":"BMW 5-Serie","start":"2011-04-20"},{"title":"Ford Mondeo","start":"2011-04-20"},{"title":"Volkswagen Caddy","start":"2011-04-20"},{"title":"Opel Zafira","start":"2011-04-18"},{"title":"Mazda 3","start":"2011-04-14"},{"title":"Opel Vectra","start":"2011-04-14"},{"title":"Peugeot 207","start":"2011-04-14"},{"title":"Volkswagen Golf","start":"2011-04-14"},{"title":"Volvo V90","start":"2011-04-14"},{"title":"Volvo V50","start":"2011-04-14"},{"title":"Volkswagen Polo","start":"2011-04-14"},{"title":"Volkswagen Golf","start":"2011-04-14"},{"title":"Ford Mondeo","start":"2011-04-14"},{"title":"Audi ","start":"2011-04-14"},{"title":"BMW 525i","start":"2011-04-14"},{"title":"Renault Laguna","start":"2011-04-14"},{"title":"Opel Astra","start":"2011-04-14"},{"title":"Seat Alambhra","start":"2011-04-14"},{"title":"Peugeot 307","start":"2011-04-13"},{"title":"Hyundai Atos","start":"2011-04-13"},{"title":"Citroen Xsara Picasso","start":"2011-04-13"},{"title":"Opel Astra","start":"2011-04-13"},{"title":"Volkswagen Golf","start":"2011-04-13"},{"title":"Peugeot 307","start":"2011-04-13"},{"title":"Volkswagen Passat","start":"2011-04-13"},{"title":null,"start":"2011-04-13"},{"title":"Citroen C1","start":"2011-04-13"},{"title":"Toyota Camry","start":"2011-04-13"},{"title":"Toyota Aygo","start":"2011-04-13"},{"title":"Nissan Qashqai","start":"2011-04-13"},{"title":"BMW 3 touring","start":"2011-04-12"},{"title":"Toyota Prius","start":"2011-04-12"}]

我尝试了所有我能想出的办法，我花了 5 个小时来完成这项工作。

有没有人知道如何使这项工作成功？

Answer 1

看起来错误在您的数据库中。

在您的 JSON 提要中，您有一个条目是

{"title":null,"start":"2011-04-13"}

null 可能是阻碍您前进的原因。