public async Task <IActionResult> Get([FromQuery] AlbumResourceParameters resourceParameters)
{
var albums = _albumRepo.GetAllPagination(resourceParameters);
var mappedAlbums = _mapper.Map <IEnumerable <AlbumDto> >(albums);
//Construct links to previous+ next page
var previousPage = albums.HasPrevious ?
_albumLinkService.CreateResourceUri(resourceParameters, ResourceType.PreviousPage) : null;
var nextPage = albums.HasNext ?
_albumLinkService.CreateResourceUri(resourceParameters, ResourceType.NextPage) : null;
mappedAlbums = mappedAlbums.Select(album =>
{
album = _albumLinkService.CreateLinks(album);
return(album);
});
var paginationMetadata = new
{
totalCount = albums.TotalCount,
pageSize = albums.PageSize,
currentPage = albums.CurrentPage,
totalPages = albums.TotalPages,
previousPageLink = previousPage,
nextPageLink = nextPage
};
return(Ok(new
{
Values = mappedAlbums,
Links = paginationMetadata
}));
}
public PagedList <Album> GetAllPagination(AlbumResourceParameters resourceParams)
{
var collectionBeforPaging = _context.Albums
.Include(t => t.Tracks)
.OrderBy(t => t.Name)
.AsQueryable();
//filter by type if type exists
if (!string.IsNullOrEmpty(resourceParams.Type))
{
collectionBeforPaging = collectionBeforPaging
.Where(a => a.Type == resourceParams.Type);
}
//filter by name if name =||=
if (!string.IsNullOrEmpty(resourceParams.Name))
{
collectionBeforPaging = collectionBeforPaging
.Where(a => a.Name == resourceParams.Name);
}
//searh if exists
if (!string.IsNullOrEmpty(resourceParams.SearchQuery))
{
collectionBeforPaging = collectionBeforPaging
.Where(a => a.Name.Contains(resourceParams.SearchQuery) ||
a.Type.Contains(resourceParams.SearchQuery));
}
return(PagedList <Album> .Create(collectionBeforPaging, resourceParams.PageNumber, resourceParams.PageSize));
}
