// GET: 显示上传物品的表单
// 修改时间: 2019年5月8日 16点03分
public ActionResult UploadThings(int?id)
{
if (id != null)
{
using (SSDBEntities db = new SSDBEntities())
{
//查找id对应的受助请求
Quests q = db.Quests.Where(x => x.Id == id.Value).FirstOrDefault();
//查找受助方
Users qu = db.Users.Where(x => x.UserId == q.ReceiverId).FirstOrDefault();
//新建视图模型
UploadThingsViewModel res = new UploadThingsViewModel();
//给视图模型赋值
res.Quest = q;
res.Receiver = qu;
res.tName = q.Name;
res.tType = q.Type;
return(View(res));
}
}
return(View());
}
public ActionResult UploadThings(UploadThingsViewModel model, int?qId)
{
//获取当前用户的Id
int usrId = (int)HttpContext.Session["usrId"];
int tId = 0;
if (ModelState.IsValid)
{
//新建Things
Things t = new Things();
t.DonatorId = usrId;
t.Name = model.tName;
t.Type = model.tType;
t.Detail = model.tDetail;
t.ReleaseTime = DateTime.Now;
t.Status = qId != null ? "已接受捐赠" : "正在审核中";//如果当前有匹配受助请求，则跳过审核
//文件存储到目录下
foreach (var imgFile in model.Image)
{
if (imgFile != null && imgFile.ContentLength > 0)
{
string extension = Path.GetExtension(imgFile.FileName);
if (extension == ".jpg" || extension == ".png" || extension == ".gif")
{
string phicyPath = PublicFunction.GetPhicyPath();
//创建Upload文件夹，如果有则不创建
Directory.CreateDirectory(phicyPath);
//文件名与路径
var fileName = Path.GetFileName(imgFile.FileName);
var filePath = phicyPath + fileName;
//防止文件重名
while (System.IO.File.Exists(filePath))
{
Random rand = new Random();
fileName = rand.Next().ToString() + "-" + fileName;
filePath = phicyPath + fileName;
}
//存储文件到文件目录
imgFile.SaveAs(filePath);
//计算图片的哈希值
t.ImageHash = MainHash(filePath);
//保存提交的图片URL至数据库
t.ImageUrl = fileName;
}
else
{
ModelState.AddModelError("Image", "请上传正确格式的图片(.jpg .png .gif)");
return(View(model));
}
}
}
//向数据库新建元组，并获取新Things的id
using (SSDBEntities db = new SSDBEntities())
{
db.Things.Add(t);
db.SaveChanges();
tId = t.Id;
}
//如果当前有匹配受助请求，再新建一条匹配元组
//并改变受助请求状态
if (qId != null)
{
//新建ThingsQuests
ThingsQuests tq = new ThingsQuests();
tq.ThingId = tId;
tq.QuestId = qId.Value;
tq.Time = DateTime.Now;
//向数据库新建元组，改变受助请求状态
using (SSDBEntities db = new SSDBEntities())
{
db.ThingsQuests.Add(tq);
Quests q = db.Quests.Where(x => x.Id == qId.Value).FirstOrDefault();
q.Status = "已接受受助";
db.Entry(q).State = EntityState.Modified;
db.SaveChanges();
}
}
//提交成功，跳转至用户主页
return(RedirectToAction("MyThingsList"));
}
//模型报错，返回当前页面
return(RedirectToAction("UploadThings", new { id = qId }));
}
