public IActionResult GetPosts([FromQuery] PostsResourceParameter resourceParameter)
{
//List<Post> posts = await _context.Posts.ToListAsync();
//var postEntities = postRepo.Get(10);
var postEntities = postRepo.Get(resourceParameter);
var paginationMetadata = new
{
totalCount = postEntities.TotalCount,
pageSize = postEntities.PageSize,
currentPage = postEntities.CurrentPage,
totalPages = postEntities.TotalPages
};
Response.Headers.Add("X-Pagination", JsonSerializer.Serialize(paginationMetadata));
var postDtos = mapper.Map <IEnumerable <PostDto> >(postEntities).Expand();
var postDtosWithLinks = postDtos.Select(el =>
{
var postDictionary = el as IDictionary <string, object>;
postDictionary.Add("links", CreateLinksForPost((Guid)postDictionary["Id"]));
return(postDictionary);
});
var links = CreateLinksForPosts(resourceParameter, postEntities.HasNext, postEntities.HasPrevious);
return(Ok(new { posts = postDtosWithLinks, links }));
}
private IEnumerable <LinkDto> CreateLinksForPosts(PostsResourceParameter resourceParameter, bool hasNext, bool hasPrevious)
{
var links = new List <LinkDto>();
links.Add(new LinkDto
{
Href = Url.Link("GetPosts", new { resourceParameter }),
Rel = "currentPage",
Method = "GET"
});
if (hasNext)
{
links.Add(new LinkDto
{
Href = Url.Link("GetPosts", new { PageNumber = resourceParameter.PageNumber + 1, resourceParameter.BlogCategory, resourceParameter.PageSize }),
Rel = "nextPage",
Method = "GET"
});
}
if (hasPrevious)
{
links.Add(new LinkDto
{
Href = Url.Link("GetPosts", new { PageNumber = resourceParameter.PageNumber - 1, resourceParameter.BlogCategory, resourceParameter.PageSize }),
Rel = "prevPage",
Method = "GET"
});
}
return(links);
}
public PagedList <Post> Get(PostsResourceParameter resourceParameter)
{
var posts = context.Posts
.OrderByDescending(p => p.CreatedDate)
.Include(p => p.Comments)
.ThenInclude(p => p.User)
.Include(p => p.Images) as IQueryable <Post>;
if (!string.IsNullOrEmpty(resourceParameter.BlogCategory))
{
posts = posts.Where(p => p.BlogCategory == (int)Enum.Parse(typeof(BlogCategory), resourceParameter.BlogCategory, true));
}
return(PagedList <Post> .Create(posts, resourceParameter.PageNumber, resourceParameter.PageSize));
}
public PagedList <Post> Get(PostsResourceParameter resourceParameter)
{
throw new NotImplementedException();
}