public async Task <ActionResult> Edit(HanEdit model)
{
var hg = _db.HanGroups.Include("blogs").Include("members").SingleOrDefault(m => m.HanGroupID == model.ID);
if (hg == null)
{
return(NotFound());
}
byte[] imgbtye = null;
if (model.HanImage != null)
{
imgbtye = Convert.FromBase64String(model.HanImage);
if (imgbtye.Length > 4194304)
{
ModelState.AddModelError("", "头像必须是图片，且小于4MB。");
}
}
if (ModelState.IsValid)
{
string[] newBlogIDstr = null;
if (model.blogIDs == null)
{
newBlogIDstr = new string[] { };
}
else
{
newBlogIDstr = model.blogIDs.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
}
var newBlogIDs = new List <int>(newBlogIDstr.Length);
foreach (var blogid in newBlogIDstr)
{
int id;
if (int.TryParse(blogid, out id))
{
newBlogIDs.Add(id);
}
}
var actual = _db.Blogs.Where(blog => newBlogIDs.Contains(blog.BlogID)).Select(blog => blog.BlogID).ToList();
if (actual.Count != newBlogIDs.Count)
{
newBlogIDs = newBlogIDs.Intersect(actual).ToList();
}
var blogIDs = hg.blogs.Select(h => h.BlogID);
var Members = hg.members.Select(h => h.Username);
string[] newmembers = null;
if (string.IsNullOrWhiteSpace(model.Members))
{
newmembers = new string[] { }
}
;
else
{
newmembers = model.Members.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
}
var errnames = string.Empty;
var errids = string.Empty;
var adminm = hg.members.Where(hm => hm.GroupLvl == 1).ToList();
var m = new List <HanGroupMember>();
if (imgbtye != null)
{
if (!string.IsNullOrEmpty(hg.Logo))
{
await _uploadUtil.DeleteFileAsync(hg.Logo);
}
hg.Logo = _uploadUtil.GenerateImageName(hg.GroupUri);
await _uploadUtil.saveImageAsync(imgbtye, hg.Logo);
}
hg.Intro = model.Intro;
hg.Title = model.Title;
var existnames = _udb.Users.Where(u => newmembers.Contains(u.UserName)).Select(u => u.UserName).ToList();
foreach (var n in newmembers)
{
var name = n.Trim();
if (existnames.Contains(name))
{
var member = new HanGroupMember();
member.HanGroupID = hg.HanGroupID;
member.Username = name;
member.GroupLvl = 2;
m.Add(member);
}
else
{
errnames += name + ',';
}
}
var comp = new HanGroupMemberComparer();
hg.members = adminm.Union(hg.members.Where(hm => hm.GroupLvl == 2).Intersect(m, comp).Union(m, comp), comp).ToList();
//member = Group1 Union newGroup2
var b = new List <HanGroupBlog>();
foreach (var blogid in newBlogIDs)
{
var blog = new HanGroupBlog();
blog.BlogID = blogid;
blog.HanGroupID = hg.HanGroupID;
b.Add(blog);
}
var comparer = new HanGroupBlogComparer();
hg.blogs = hg.blogs.Intersect(b, comparer).Union(b, comparer).ToList();
_db.SaveChanges();
return(Json(new { success = true }));
}
string error = string.Empty;
foreach (var err in ModelState.Values.SelectMany(v => v.Errors))
{
error += "<li>" + err.ErrorMessage + "</li>";
}
return(Json(new { success = false, err = "<ul>" + error + "</ul>" }));
}