public IActionResult Browse(int?categoryId, string?searchInput)
{
List <Book> bookList = null;
Category selectedCategory = null;
if (categoryId == null)
{
bookList = _dbContext.Books.ToList();
}
else
{
bookList = _dbContext.Books
.Where(x => x.BookCategories.Any(c => c.CategoryId == categoryId)).ToList();
selectedCategory = _dbContext.Categories.Find(categoryId);
}
if (!IsNullOrEmpty(searchInput))
{
bookList = bookList.Where(x => x.Title.ToUpper().Contains(searchInput.ToUpper()) || x.Author.ToUpper().Contains(searchInput.ToUpper())).ToList();
}
var browseBooksViewModel = new BrowseBooksViewModel()
{
Categories = _dbContext.Categories.OrderBy(c => c.CategoryName).ToList(),
BooksToDisplay = bookList,
SelectedCategory = selectedCategory,
SearchInput = searchInput
};
return(View(browseBooksViewModel));
}
public IActionResult BrowseBooks(BrowseBooksViewModel model)
{
if (!model.PagesRangeSelected)
{
model.PagesMin = null;
model.PagesMax = null;
}
if (model.Category == null)
{
var firstCategory = _manage.GetAllCategories().FirstOrDefault();
if (firstCategory != default(Category))
{
model.Category = firstCategory.Name;
}
}
model.Books = _manage.GetBooks(model.Title, model.ISBN, model.Author, model.PagesMin,
model.PagesMax, model.Publisher, model.Category);
model.Categories = _manage.GetAllCategories();
var elementsCount = 0;
if (!(model.Books is null))
{
elementsCount = model.Books.Count();
}
var allPagesCount = elementsCount / model.ElementsOnPage;
var elementsToTake = model.ElementsOnPage;
if (elementsCount % model.ElementsOnPage != 0)
{
allPagesCount++;
}
if (model.Page < 1)
{
model.Page = 1;
}
if (model.Page > allPagesCount)
{
model.Page = model.AllPagesCount;
}
model.AllPagesCount = allPagesCount;
if (model.Page.Equals(model.AllPagesCount))
{
elementsToTake = elementsCount - ((model.AllPagesCount - 1) * model.ElementsOnPage);
}
if (elementsCount > 0)
{
model.Books = model.Books.Skip((model.Page - 1) * model.ElementsOnPage).Take(elementsToTake);
model.AnyElements = true;
}
else
{
model.AnyElements = false;
}
if (elementsCount <= model.ElementsOnPage)
{
model.MoreThanOnePage = false;
}
return(View(model));
}
