public static IQueryable <T> ApplyPaging <T>(this IQueryable <T> efQuery,
IPaginateable pagination)
{
return(efQuery
.Skip((pagination.PageNumber - 1) * pagination.PageSize)
.Take(pagination.PageSize));
}
public Uri GetUri(string requestRoute, IPaginateable paginationData = null)
{
var uri = new Uri(_baseUri + requestRoute);
if (paginationData == null)
{
return(uri);
}
return(new Uri(uri.ToString()
.AppendQueryString(PageNumber, paginationData.PageNumber.ToString())
.AppendQueryString(PageSize, paginationData.PageSize.ToString())));
}
public PaginationQuery(IPaginateable pagination)
{
PageNumber =
pagination?.PageNumber < 1 ? _defaultPageNumber
: pagination.PageNumber;
PageSize =
pagination.PageSize <1 ? _defaultPageSize
: pagination.PageSize> _maxPageSize ? _maxPageSize
: pagination.PageSize;
IsApplied =
!(pagination.PageSize < 1 && pagination.PageNumber < 1);
}
public PaginationQuery(IPaginateable pagination, PaginationSettings settings)
{
PageNumber =
pagination?.PageNumber < 1 ? _defaultPageNumber
: pagination.PageNumber;
PageSize =
pagination.PageSize <1 ? settings.DefaultPageSize
: pagination.PageSize> settings.MaxPageSize ? settings.MaxPageSize
: pagination.PageSize;
IsApplied =
!(pagination.PageSize < 1 && pagination.PageNumber < 1);
}
public static PagedResponse <T> CreatePaginatedResponse <T>(
IUriService uriService,
IPaginateable pagination,
List <T> response, string requestRoute,
int?total)
{
var nextPage = pagination.PageNumber >= 1
? uriService.GetUri(requestRoute,
new PaginationQuery
{
PageNumber = pagination.PageNumber + 1,
PageSize = pagination.PageSize
}).ToString()
: null;
var previousPage = pagination.PageNumber - 1 >= 1
? uriService.GetUri(requestRoute,
new PaginationQuery
{
PageNumber = pagination.PageNumber - 1,
PageSize = pagination.PageSize
}).ToString()
: null;
return(new PagedResponse <T>
{
Data = response,
PageNumber = pagination.PageNumber >= 1 ? pagination.PageNumber
: (int?)null,
PageSize = pagination.PageSize > response.Count ? response.Count
: pagination.PageSize >= 1 ? pagination.PageSize
: (int?)null,
NextPage = total > pagination.PageSize ? nextPage
: null,
PreviousPage = previousPage,
Total = total
});
}
public static string AppendPaginationQuery(this string query, IPaginateable pagination)
{
return(pagination == null ? query : $"{query}?pageNumber={pagination.PageNumber}&pageSize={pagination.PageSize}");
}
public static IQueryable <TEntity> ApplyPaging <TEntity>(this IQueryable <TEntity> efQuery,
IPaginateable pagination)
=> efQuery
.Skip((pagination.PageNumber - 1) * pagination.PageSize)
.Take(pagination.PageSize);
