public async Task <ActionResult <IEnumerable <patient> > > GetPatients([FromQuery] paginationFilter filter, string?Name, int?fileNo, string?phoneNo)
{
var route = Request.Path.Value;
var pageFilter = new paginationFilter(filter.pageNumber, filter.pageSize);
IQueryable <patient> query = _context.patients;
if (!string.IsNullOrEmpty(Name))
{
query = _context.patients.Where(x => x.name == Name);
}
if (!string.IsNullOrEmpty(phoneNo))
{
query = _context.patients.Where(x => x.phoneNumber == phoneNo);
}
if (fileNo != null)
{
query = _context.patients.Where(x => x.fileNo == fileNo);
}
var patients = await query
.Skip((pageFilter.pageNumber - 1) *pageFilter.pageSize)
.Take(pageFilter.pageSize)
.ToListAsync();
var totalRecords = await _context.patients.CountAsync();
var pageResponse = paginationHelper.CreatePagedReponse <patient>(patients, pageFilter, totalRecords, _uriService, route);
return(Ok(pageResponse));
}
public Uri GetPageUri(paginationFilter filter, string route)
{
var _endPointUri = new Uri(string.Concat(_baseUri, route));
var modifiedUri = QueryHelpers.AddQueryString(_endPointUri.ToString(), "pageNumber", filter.pageNumber.ToString());
modifiedUri = QueryHelpers.AddQueryString(modifiedUri, "pageSize", filter.pageSize.ToString());
return(new Uri(modifiedUri));
}
public static PagedResponse <List <T> > CreatePagedReponse <T>(List <T> pagedData, paginationFilter validFilter, int totalRecords, IUriService uriService, string route)
{
var respose = new PagedResponse <List <T> >(pagedData, validFilter.pageNumber, validFilter.pageSize);
var totalPages = (double)totalRecords / (double)validFilter.pageSize;
int roundedTotalPages = Convert.ToInt32(Math.Ceiling(totalPages));
respose.NextPage =
validFilter.pageNumber >= 1 && validFilter.pageNumber < roundedTotalPages
? uriService.GetPageUri(new paginationFilter(validFilter.pageNumber + 1, validFilter.pageSize), route)
: null;
respose.PreviousPage =
validFilter.pageNumber - 1 >= 1 && validFilter.pageNumber <= roundedTotalPages
? uriService.GetPageUri(new paginationFilter(validFilter.pageNumber - 1, validFilter.pageSize), route)
: null;
respose.FirstPage = uriService.GetPageUri(new paginationFilter(1, validFilter.pageSize), route);
respose.LastPage = uriService.GetPageUri(new paginationFilter(roundedTotalPages, validFilter.pageSize), route);
respose.TotalPages = roundedTotalPages;
respose.TotalRecords = totalRecords;
return(respose);
}
