public async Task <IActionResult> Get([FromQuery] PlaylistAlbumResourceParameters resourceParameters)
{
var albums = _playlistAlbumRepo.GetAllPagination(resourceParameters);
var mappedAlbums = _mapper.Map <IEnumerable <PlaylistAlbumDto> >(albums);
//construct links to previus+next page
var previousPage = albums.HasPrevious ?
_linkService.CreateResourceUri(resourceParameters, ResourceType.PreviousPage) : null;
var nextPage = albums.HasNext ?
_linkService.CreateResourceUri(resourceParameters, ResourceType.NextPage) : null;
mappedAlbums = mappedAlbums.Select(track =>
{
track = _linkService.CreateLinks(track);
return(track);
});
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 <PlaylistAlbum> GetAllPagination(PlaylistAlbumResourceParameters resourceParams)
{
var collectionBeforePaging = _context.PlaylistAlbums
.Include(t => t.Tracks)
.OrderBy(t => t.UserName)
.AsQueryable();
//filter by userName
if (!string.IsNullOrEmpty(resourceParams.UserName))
{
collectionBeforePaging = collectionBeforePaging
.Where(a => a.UserName == resourceParams.UserName);
}
//filter by type if type exists
if (!string.IsNullOrEmpty(resourceParams.Type))
{
collectionBeforePaging = collectionBeforePaging
.Where(a => a.Type == resourceParams.Type);
}
//filter by name if name =||=
if (!string.IsNullOrEmpty(resourceParams.Name))
{
collectionBeforePaging = collectionBeforePaging
.Where(a => a.Name == resourceParams.Name);
}
//searh if exists
if (!string.IsNullOrEmpty(resourceParams.SearchQuery))
{
collectionBeforePaging = collectionBeforePaging
.Where(a => a.Name.Contains(resourceParams.SearchQuery) ||
a.Type.Contains(resourceParams.SearchQuery));
}
return(PagedList <PlaylistAlbum> .Create(collectionBeforePaging, resourceParams.PageNumber, resourceParams.PageSize));
}
