public static IQueryable <Book> SearchBook(SeboDbContext _context, string sortOrder, params string[] keywords)
{
IQueryable <Book> books = (from b in _context.Book select b);
if (keywords.Length > 0)
{
var predicate = PredicateBuilder.False <Book>();
foreach (string keyword in keywords)
{
string temp = keyword;
predicate = predicate.Or(p => p.Title.Contains(temp)).Or(p => p.Description.Contains(temp)).Or(p => p.ISBN.Contains(temp));
}
books = (from b in _context.Book select b).Where(predicate);
}
books = OrderingBooks.Do(books, sortOrder);
return(books);
}
// GET: Books
public async Task <IActionResult> BooksCatalog(string UserName, string sortOrder, string currentSearchString, string SearchString, int StudyAreaFilter, int BookConditionFilter, int?Page)
{
if (currentSearchString != null)
{
string[] m = currentSearchString.Split(".");
currentSearchString = m[0]; // preserves the current filter typed within the search textbox
if (SearchString == null)
{
SearchString = currentSearchString;
}
if (StudyAreaFilter == 0)
{
StudyAreaFilter = Int32.Parse(m[1]); // preserves the select institution option in the dropdownlist
}
if (BookConditionFilter == 0)
{
BookConditionFilter = Int32.Parse(m[2]); // preserves the select Study Area option in the dropdownlist
}
}
//Get the User ID
int UserId = HelperUser.GetUserId(this.User.Identity.Name, _context);
int UserBranchId = HelperUser.GetUserBranchId(this.User.Identity.Name, _context);
// Cheks whether a search string was typed and prepares for search by each word
string[] myString = SearchString != null?SearchString.Trim().Split(" ") : new string[0];
// Get the seach's recordset already sorted
var books = StringSearch.SearchBook(_context, sortOrder, myString).Include(b => b.BookCondition).Include(b => b.StudyArea).Include(b => b.User)
.Where(b => !b.Blocked)
.Where(b => b.Quantity > b.QuantitySold)
.Where(b => b.UserId != UserId)
.Where(b => !b.IsWaitList);
var users = (from u in _context.User select u).Include(u => u.InstitutionBranch);
//Getting the books from the same institution
var books2 = (from b in books
join u in users on b.UserId equals u.UserId
select new
{
b.Blocked,
b.BookCondition,
b.BookConditionId,
b.BookId,
b.CreationDate,
b.Description,
b.Edition,
b.ISBN,
b.IsWaitList,
b.Orders,
b.PhotoFileName,
b.Price,
b.Publisher,
b.Quantity,
b.QuantitySold,
b.StudyArea,
b.StudyAreaId,
b.Title,
b.User,
b.UserId,
b.Visualizations,
u.InstitutionBranchId,
u.InstitutionBranch.InstitutionBranchName
}).Where(b => b.InstitutionBranchId == UserBranchId);
// Applying filters on the table
if (StudyAreaFilter != 0)
{
books2 = books2.Where(b => b.StudyAreaId == StudyAreaFilter);
}
if (BookConditionFilter != 0)
{
books2 = books2.Where(b => b.BookConditionId == BookConditionFilter);
}
//
// Preparing Dropboxes
//
var StudyAreas = (from s in books2 orderby s.StudyArea.StudyAreaName select new { s.StudyAreaId, s.StudyArea.StudyAreaName }).ToList().Distinct();
var BookConditions = (from b in books2 orderby b.BookCondition select new { b.BookConditionId, b.BookCondition.Condition }).ToList().Distinct();
ViewData["StudyAreaFilter"] = new SelectList(StudyAreas, "StudyAreaId", "StudyAreaName");
ViewData["BookConditionFilter"] = new SelectList(BookConditions, "BookConditionId", "Condition");
//////////////////////////////////////
ViewData["CurrentSearchString"] = SearchString + "." + StudyAreaFilter + "." + BookConditionFilter + "." + Page;
ViewData["SearchString"] = SearchString;
//
// Just tracking which ordering column was trigged for setting the actual ordering
//
ViewData["Title"] = OrderingBooks.NewOrder(sortOrder, "Title");
ViewData["StudyArea"] = OrderingBooks.NewOrder(sortOrder, "StudyArea");
ViewData["BookCondition"] = OrderingBooks.NewOrder(sortOrder, "BookCondition");
ViewData["ISBN"] = OrderingBooks.NewOrder(sortOrder, "ISBN");
ViewData["Price"] = OrderingBooks.NewOrder(sortOrder, "Price");
int PageSize = 14;
return(View(await Pagination <Book> .CreateAsync(books.AsNoTracking(), Page ?? 1, PageSize)));
}
public async Task <IActionResult> Index(string UserName, string sortOrder, string currentSearchString, string SearchString, int StudyAreaFilter, int BookConditionFilter, int?Page)
{
if (currentSearchString != null)
{
string[] m = currentSearchString.Split(".");
currentSearchString = m[0]; // preserves the current filter typed within the search textbox
if (SearchString == null)
{
SearchString = currentSearchString;
}
if (StudyAreaFilter == 0)
{
StudyAreaFilter = Int32.Parse(m[1]); // preserves the select institution option in the dropdownlist
}
if (BookConditionFilter == 0)
{
BookConditionFilter = Int32.Parse(m[2]); // preserves the select Study Area option in the dropdownlist
}
}
//Get the User ID
if (String.IsNullOrEmpty(UserName))
{
UserName = this.User.Identity.Name;
}
int UserId = HelperUser.GetUserId(UserName, _context);
// Cheks whether a search string was typed and prepares for search by each word
string[] myString = SearchString != null?SearchString.Trim().Split(" ") : new string[0];
var x = HelperUser.isAdministrator(UserName);
// Get the seach's recordset already sorted applying filtering according to user role
var books = StringSearch.SearchBook(_context, sortOrder, myString).Include(b => b.BookCondition).Include(b => b.StudyArea).Include(b => b.User)
.Where(b => !b.Blocked)
.Where(b => b.Quantity > b.QuantitySold)
.Where(b => !b.IsWaitList)
.Where(b => HelperUser.isAdministrator(UserName) ? b.UserId > 0 : b.UserId == UserId);
//.Where(b => UserId > 0 || UserName != null ? b.UserId == UserId : b.UserId > 0)
// Applying filters on the table
if (StudyAreaFilter != 0)
{
books = books.Where(b => b.StudyAreaId == StudyAreaFilter);
}
if (BookConditionFilter != 0)
{
books = books.Where(b => b.BookConditionId == BookConditionFilter);
}
//
// Preparing Dropboxes
//
var StudyAreas = (from s in books orderby s.StudyArea.StudyAreaName select new { s.StudyAreaId, s.StudyArea.StudyAreaName }).ToList().Distinct();
var BookConditions = (from b in books orderby b.BookCondition select new { b.BookConditionId, b.BookCondition.Condition }).ToList().Distinct();
ViewData["StudyAreaFilter"] = new SelectList(StudyAreas, "StudyAreaId", "StudyAreaName");
ViewData["BookConditionFilter"] = new SelectList(BookConditions, "BookConditionId", "Condition");
//////////////////////////////////////
ViewData["CurrentSearchString"] = SearchString + "." + StudyAreaFilter + "." + BookConditionFilter + "." + Page;
ViewData["SearchString"] = SearchString;
//
// Just tracking which ordering column was trigged for setting the actual ordering
//
ViewData["Title"] = OrderingBooks.NewOrder(sortOrder, "Title");
ViewData["StudyArea"] = OrderingBooks.NewOrder(sortOrder, "StudyArea");
ViewData["BookCondition"] = OrderingBooks.NewOrder(sortOrder, "BookCondition");
ViewData["ISBN"] = OrderingBooks.NewOrder(sortOrder, "ISBN");
ViewData["Price"] = OrderingBooks.NewOrder(sortOrder, "Price");
int PageSize = 14;
return(View(await Pagination <Book> .CreateAsync(books.AsNoTracking(), Page ?? 1, PageSize)));
}
