public IActionResult Post([FromBody] ProductPaginationParams ProductPaginationParam)
{
ProductPagination Pagi = new ProductPagination();
List <Products> Prod = new List <Products>();
if (String.IsNullOrEmpty(ProductPaginationParam.order))
{
Prod = context.Products.OrderByDescending(s => s.Name).ToList();
if (!String.IsNullOrEmpty(ProductPaginationParam.SearchParam))
{
Prod = context.Products.OrderBy(s => s.Name).ToList().Where(x => x.Name.Contains(ProductPaginationParam.SearchParam)).ToList();
}
else
{
Prod = context.Products.OrderBy(s => s.Name).ToList();
}
}
else if (ProductPaginationParam.order.Equals("Likes"))
{
Prod = context.Products.OrderByDescending(s => s.likes).ToList();
if (!String.IsNullOrEmpty(ProductPaginationParam.SearchParam))
{
Prod = context.Products.OrderBy(s => s.likes).ToList().Where(x => x.Name.Contains(ProductPaginationParam.SearchParam)).ToList();
}
else
{
Prod = context.Products.OrderBy(s => s.likes).ToList();
}
}
Pagi.total = Prod.Count();
Pagi.Products = Prod.Skip((ProductPaginationParam.pageNumber - 1) * ProductPaginationParam.pageSize).Take(ProductPaginationParam.pageSize).ToList();
Pagi.Products.ForEach(x => x.links = "/api/Products/" + x.Id.ToString());
if (Pagi == null)
{
return(NotFound());
}
return(Ok(Pagi));
}
public async Task <ProductPagination> GetPaginatedProductsAsync(int page = 1, string search = null)
{
// Count all products
var totalProducts = await _repository.CountAllProductsAsync(search);
// Calculate how many pages the products will be split into
var totalPages = CalculateTotalPaginationPages(totalProducts, PRODUCTS_PER_PAGE);
// If user tries to view a page past pagination-range or totalProducts is 0, return an empty view
if (totalProducts == 0 || page > totalPages)
{
return(null);
}
// Set default paging to page 1 if user is trying to manipulate the starting point below 1
int currentPage = (page < 1) ? 1 : page;
// Get products from selected page based on page number from query-string
var products = await _repository.GetPaginatedProductsAsync(currentPage, PRODUCTS_PER_PAGE, search);
var maxLinks = (MAX_PAGINATION_LINKS > totalPages) ? totalPages : MAX_PAGINATION_LINKS;
var offset = CalculatePaginationOffset(totalPages, currentPage, maxLinks);
// Instantiate a new Pagination-object
var pagination = new ProductPagination()
{
PaginationData = new PaginationData()
{
PaginationStart = offset, // Start pagination link
PaginationLimit = offset + (maxLinks - 1), // Max number of pagination-links to be displayed
TotalPages = totalPages, // Total amount of pages
CurrentPage = currentPage, // Current page visitor is viewing
TotalProducts = totalProducts // Total amount of products
},
Products = products
};
return(pagination);
}
