public static MvcHtmlString PageLinks(this HtmlHelper html, PagingInfo pagingInfo, Func<int, string> pageUrl)
{
var result = new StringBuilder();
if (pagingInfo.TotalPages <= 1)
return MvcHtmlString.Empty;
for (int i = pagingInfo.CurrentPage; i <= (5 + pagingInfo.CurrentPage); i++)
{
int startIndex = (i < 5) ? 1 : (pagingInfo.CurrentPage - 5) + 2;
int endIndex = (i < 5)
? pagingInfo.TotalPages
: (pagingInfo.CurrentPage + 2) <= pagingInfo.TotalPages
? (pagingInfo.CurrentPage + 2)
: pagingInfo.TotalPages;
bool frontArrows = (i - 5 >= 0);
bool endArrows = (pagingInfo.TotalPages - (i + 2)) > 0;
if (frontArrows)
result.Append("... ");
for (int j = startIndex; j <= endIndex; j++)
{
var tag = new TagBuilder("a");
tag.MergeAttribute("href", pageUrl(j));
tag.InnerHtml = j.ToString(CultureInfo.InvariantCulture);
if (j == pagingInfo.CurrentPage)
{
tag.AddCssClass("selected-page-link");
tag.Attributes.Add("style", "color:blue;");
}
result.Append(tag.ToString());
if (i != pagingInfo.TotalPages)
result.Append(" ");
}
if (endArrows)
result.Append("...");
break;
}
return MvcHtmlString.Create(result.ToString());
}
private List<SnippetDetailsModel> MergeUserAndSnippets(List<SnippetDetailsModel> viewModel,
PagingInfo pagingInfo)
{
var newList = new List<SnippetDetailsModel>();
if (viewModel != null && viewModel.Any())
{
newList.AddRange(from snippetDTO in viewModel
let currentUser =
_managerService.UserDetails(snippetDTO.UserId,
snippetDTO.UserGuid)
select new SnippetDetailsModel
{
SnippetId = snippetDTO.SnippetId,
Name = snippetDTO.Name,
Description = snippetDTO.Description,
SnippetUrl = snippetDTO.SnippetId.ToString(),
PreviewData = snippetDTO.PreviewData,
UserName =
(currentUser != null && currentUser.Id > 0)
? currentUser.LoginName
: MvcApplication.AnonoymousUserName,
UserAvatar =
(currentUser != null && currentUser.Id > 0)
? currentUser.AvatarImage
: null,
UserId =
(currentUser.Id > 0)
? currentUser.Id
: MvcApplication.AnonymousUserId,
UserGuid =
(currentUser.FormsAuthId != Guid.Empty)
? currentUser.FormsAuthId
: MvcApplication.AnonymousUserGuid,
IsPublic = snippetDTO.IsPublic,
PagingInfo = pagingInfo
});
}
return newList;
}
private IEnumerable<SnippetDetailsModel> ConvertDtoCollectionToModelCollection(IEnumerable<SnippetDTO> response,
PagingInfo pagingInfo)
{
var results = new List<SnippetDetailsModel>();
results.AddRange(
from snippetDTO in response
let currentUser =
_managerService.UserDetails(snippetDTO.User_Id,
snippetDTO.User_FormsAuthId)
select new SnippetDetailsModel
{
SnippetId = snippetDTO.Guid,
Name = snippetDTO.Name,
Description = snippetDTO.Description,
SnippetUrl = snippetDTO.Guid.ToString(),
PreviewData = Encoding.UTF8.GetString(snippetDTO.PreviewData),
UserName =
(currentUser != null && currentUser.Id > 0)
? currentUser.LoginName
: MvcApplication.AnonoymousUserName,
UserAvatar =
(currentUser != null && currentUser.Id > 0)
? currentUser.AvatarImage
: new byte[0],
UserId =
(currentUser.Id > 0)
? currentUser.Id
: MvcApplication.AnonymousUserId,
UserGuid =
(currentUser.FormsAuthId != Guid.Empty)
? currentUser.FormsAuthId
: MvcApplication.AnonymousUserGuid,
IsPublic = snippetDTO.IsPublic,
PagingInfo = pagingInfo
});
return results;
}
public ActionResult SearchResults(int page = 1)
{
string searchText = string.Empty;
var searchResults = new List<SnippetDetailsModel>();
if (Session["SearchTerm"] != null && !string.IsNullOrEmpty(Session["SearchTerm"].ToString()))
{
searchText = Session["SearchTerm"].ToString();
}
if (TempData["SearchResults"] != null)
{
searchResults = ((List<SnippetDetailsModel>) TempData["SearchResults"]);
}
var viewModel = new List<SnippetDetailsModel>();
var pagingInfo = new PagingInfo
{
ItemsPerPage = MAX_SNIPPETS_PER_PAGE,
CurrentPage = page,
TotalItems = searchResults != null ? searchResults.Count() : 0
};
if (searchResults != null)
{
viewModel = ((List<SnippetDetailsModel>) TempData["SearchResults"]);
if (viewModel != null && viewModel.Any())
{
viewModel = MergeUserAndSnippets(viewModel, pagingInfo);
}
else
{
TempData["Message"] = "No results found";
}
}
else
{
if (!string.IsNullOrEmpty(searchText))
viewModel = (List<SnippetDetailsModel>) ConvertDtoCollectionToModelCollection(
_managerService.FindSnippetsPaged((searchText == string.Empty) ? string.Empty : searchText,
pagingInfo.ItemsPerPage, page), pagingInfo);
}
TempData["SearchTerm"] = searchText;
return View(viewModel);
}
public ActionResult PerformSearch(string searchText, int page = 1)
{
if (string.IsNullOrEmpty(searchText))
return RedirectToAction("SearchResults", new {results = new List<SnippetDetailsModel>()});
var results = new List<SnippetDetailsModel>();
var pagingInfo = new PagingInfo {CurrentPage = page, ItemsPerPage = MAX_SNIPPETS_PER_PAGE};
try
{
// Get search results
SnippetDTO[] response = _managerService.FindSnippetsPaged(searchText ?? string.Empty,
MAX_SNIPPETS_PER_PAGE, page);
pagingInfo.TotalItems = _managerService.FindSnippets(searchText).Count();
if (response.Any())
{
results = ConvertDtoCollectionToModelCollection(response, pagingInfo).ToList();
}
}
catch (Exception ex)
{
Logger.LogError("PerformSearch exception", ex);
TempData["Error"] = "Unknow error occurred.";
return RedirectToAction("All");
}
TempData["SearchResults"] = results;
Session["SearchTerm"] = (string.IsNullOrEmpty(searchText) ? string.Empty : searchText);
return RedirectToAction("SearchResults", new {results = results.ToArray()});
}
public ActionResult Index(int page = 1)
{
var viewModel = new List<SnippetDetailsModel>();
var pagingInfo = new PagingInfo {CurrentPage = page};
UserDTO user = GetCurrentUserData(); //User.Identity as CustomIdentity;
try
{
int currentCount = _managerService.GetTotalSnippetCount(false);
pagingInfo.TotalItems = currentCount;
if (user != null)
{
IEnumerable<SnippetDTO> snippetList =
_managerService.GetAllPublicSnippets(MAX_SNIPPETS_PER_PAGE, page).OrderByDescending(
d => d.LastModified);
if (snippetList.Any())
{
viewModel.AddRange(
from snippetDTO in snippetList
let snippetsOwner =
_managerService.UserDetails(snippetDTO.User_Id,
snippetDTO.User_FormsAuthId)
select new SnippetDetailsModel
{
Name = snippetDTO.Name,
Description = snippetDTO.Description,
SnippetUrl = snippetDTO.Guid.ToString(),
PreviewData =
Encoding.UTF8.GetString(snippetDTO.PreviewData),
UserName = snippetsOwner.LoginName,
UserAvatar = snippetsOwner.AvatarImage,
UserId = snippetsOwner.Id,
UserGuid = snippetsOwner.FormsAuthId,
IsPublic = snippetDTO.IsPublic,
PagingInfo = pagingInfo
});
}
}
}
catch (Exception ex)
{
ModelState.AddModelError("IndexError", ex);
ViewBag.Message = ex.Message;
return View(viewModel);
}
return View(viewModel);
}
