我有一个具有以下布局的SQL Server
Table ( id int title varchar(40), start Date(), end Date(), allDay bool, username varchar(40) );
我已经从该博客中获取了以下代码,以便根据我希望使用的数据创建JSON对象,但是他的数据存储方式有所不同。如何创建从数据库中提取的同一对象?
我猜我需要使该文件为.cshtml文件而不是.js文件,并使用此文件:
@{ var db = Database.Open("events"); var selectQueryString = "SELECT * FROM events"; } @foreach(var row in db.Query(selectQueryString)){ }
但是,如何修改此代码以产生相同的JSON对象?
这是博客中的相关代码,我的尝试如下:
public JsonResult GetEvents(double start, double end) { var userName = Session["UserName"] as string; if(string.IsNullOrEmpty(userName)) { return null; } var fromDate = ConvertFromUnixTimestamp(start); var toDate = ConvertFromUnixTimestamp(end); var rep = Resolver.Resolve<IEventRepository>(); var events = rep.ListEventsForUser(userName,fromDate,toDate); var eventList = from e in events select new { id = e.Id, title = e.Title, start = e.FromDate.ToString("s"), end = e.ToDate.ToString("s"), allDay = false }; var rows = eventList.ToArray(); return Json(rows,JsonRequestBehavior.AllowGet); }
编辑:
我现在正在为GetEvents命令使用以下.cshtml代码,但无法使用。有人有什么想法吗?
@{ var origin = new DateTime(1970, 1, 1, 0, 0, 0, 0); var fromDate = origin.AddSeconds((Request["start"])); var toDate = origin.AddSeconds(Request["end"]); var db = Database.Open("events"); var result = db.Query("SELECT * FROM events"); var data = result.Select(x => new { id = x.id, title = x.title, start = x.start.ToString("s"), end = x.end.ToString("s"), allDay = false }).ToArray(); Json.Write(data, Response.Output); Response.ContentType = "application/json"; }
WebMatrix WebPages中没有控制器和动作。您需要编写一个单独的.cshtml页面,该页面将查询数据库并将JSON提供给响应:
.cshtml
@{ var db = Database.Open("events"); var result = db.Query("SELECT * FROM events"); var data = result.Select(x => new { id = x.id, title = x.title, start = x.start.ToString("s"), end = x.end.ToString("s"), allDay = false }).ToArray(); Json.Write(data, Response.Output); Response.ContentType = "application/json"; }
然后在另一个要显示日历的页面中,可以对其进行配置:
$(document).ready(function() { $('#calendar').fullCalendar({ theme: true, header: { left: '', center: '', right: '' }, defaultView: 'agendaDay', editable: false, events: '/events.cshtml' }); });
更新:这是一个如何使用参数化查询的示例:
@{ var origin = new DateTime(1970, 1, 1, 0, 0, 0, 0); var fromDate = origin.AddSeconds(int.Parse(Request["start"])); var toDate = origin.AddSeconds(int.Parse(Request["end"])); var db = Database.Open("events"); var sql = "SELECT * FROM events WHERE start >= @0 AND end <= @1"; var result = db.Query(sql, fromDate, toDate); var data = result.Select(x => new { id = x.id, title = x.title, start = x.start.ToString("s"), end = x.end.ToString("s"), allDay = false }).ToArray(); Json.Write(data, Response.Output); Response.ContentType = "application/json"; }
现在您可以像这样查询页面: /events.cshtml?start=5&end=10
/events.cshtml?start=5&end=10