/// <summary>
/// 根据PersonID获取Content集合。
/// </summary>
/// <param name="personId">PersonID</param>
/// <param name="pageIndex"></param>
/// <param name="pageSize"></param>
/// <returns></returns>
public async Task<Tuple<bool, List<Content>>> GetContentsByPersonIdAsync(long personId, int pageIndex = 1, int pageSize = int.MaxValue)
{
BlogHandler blogHandler = new BlogHandler(_dbContext);
bool isLoadedAll = true;
List<Content> contentList = null;
//1. 获取Blog集合。
var blogs = await blogHandler.GetBlogsByPersonId(personId, pageIndex, pageSize);
if(blogs.Count > 0)
{
isLoadedAll = false;
//2. 获取Blog集合的ID集合。
List<long> blogIds = blogs.Select(x => x.ID).ToList();
//3. 获取包含BlogID集合的BlogXContent Entities。
List<BlogXContent> bxcList = await Entities.Include(x => x.Content).Where(x => blogIds.Contains(x.BlogID)).ToListAsync();
if (bxcList != null && bxcList.Count > 0)
{
contentList = new List<Content>();
foreach (var bxc in bxcList)
{
contentList.Add(bxc.Content);
}
}
}
return new Tuple<bool,List<Content>>(isLoadedAll, contentList);
}
/// <summary>
/// 获取用户自己的Blog
/// </summary>
/// <param name="personId">PersonID</param>
/// <param name="pageIndex">页索引</param>
/// <param name="pageSize">页大小</param>
/// <returns></returns>
public async Task<List<BlogDTO>> GetOwnBlogs(long personId, int pageIndex, int pageSize)
{
using (KoalaBlogDbContext dbContext = new KoalaBlogDbContext())
{
List<BlogDTO> blogDtoList = null;
BlogHandler blogHandler = new BlogHandler(dbContext);
//1. 获取用户的Blogs集合。
var blogs = await blogHandler.GetBlogsByPersonId(personId, pageIndex, pageSize);
if(blogs.Count > 0)
{
PersonHandler perHandler = new PersonHandler(dbContext);
CommentHandler commentHandler = new CommentHandler(dbContext);
BlogXBlogHandler bxbHandler = new BlogXBlogHandler(dbContext);
EntityLikeHandler likeHandler = new EntityLikeHandler(dbContext);
BlogXContentHandler bxcHandler = new BlogXContentHandler(dbContext);
blogDtoList = new List<BlogDTO>();
foreach (var blog in blogs)
{
BlogDTO blogDto = blog.ToDTO();
//2. 判断Person对象是否为空，如果为空则获取。
if (blogDto.Person == null)
{
var personEntity = await perHandler.GetByIdAsync(blog.PersonID);
if (personEntity != null)
{
blogDto.Person = personEntity.ToDTO();
}
}
//3. 判断Contents集合是否为空，如果为空则获取。
if (blogDto.Contents == null)
{
List<Content> contentList = await bxcHandler.GetContentsAsync(blogDto.ID);
if (contentList != null && contentList.Count > 0)
{
blogDto.Contents = new List<ContentDTO>();
foreach (var content in contentList)
{
ContentDTO contentDto = content.ToDTO();
blogDto.Contents.Add(contentDto);
}
}
}
//4. 判断此Blog是否转发了其他Blog。
if (blogDto.BaseBlog == null)
{
Blog baseBlog = await bxbHandler.GetBaseBlogByBlogIdAsync(blogDto.ID);
if (baseBlog != null)
{
blogDto.BaseBlog = baseBlog.ToDTO();
//4.1 判断转发的Blog的Person对象是否为空，如果为空则获取。不需要获取头像。
if (blogDto.BaseBlog.Person == null)
{
var personEntity = await perHandler.GetByIdAsync(baseBlog.PersonID);
if (personEntity != null)
{
blogDto.BaseBlog.Person = personEntity.ToDTO();
}
}
//4.2 判断转发的Blog是否有发Contents。
if (blogDto.BaseBlog.Contents == null)
{
List<Content> contentList = await bxcHandler.GetContentsAsync(blogDto.BaseBlog.ID);
if (contentList != null && contentList.Count > 0)
{
blogDto.BaseBlog.Contents = new List<ContentDTO>();
foreach (var content in contentList)
{
ContentDTO contentDto = content.ToDTO();
blogDto.BaseBlog.Contents.Add(contentDto);
}
}
}
//4.3 获取转发的Blog的转发数量。
blogDto.BaseBlog.RepostCount = await bxbHandler.GetRepostCountAsync(blogDto.BaseBlog.ID);
//4.4 获取转发的Blog的评论数量。
blogDto.BaseBlog.CommentCount = await commentHandler.GetCommentCountAsync(blogDto.BaseBlog.ID);
//4.5 获取转发的Blog的点赞数量
blogDto.BaseBlog.LikeCount = await likeHandler.GetBlogLikeCountAsync(blogDto.BaseBlog.ID);
//4.6 获取转发的Blog是否已经点赞。
blogDto.BaseBlog.IsLike = await likeHandler.IsLikeAsync(personId, blogDto.BaseBlog.ID, typeof(Blog));
}
}
//5. 获取评论数量。
blogDto.CommentCount = await commentHandler.GetCommentCountAsync(blog.ID);
//6. 获取转发数量。
blogDto.RepostCount = await bxbHandler.GetRepostCountAsync(blog.ID);
//7. 获取点赞数量和用户是否已经点赞。
Tuple<int, bool> likeObj = await GetLikeObjectAsync(personId, blog.ID);
blogDto.IsLike = likeObj.Item2;
blogDto.LikeCount = likeObj.Item1;
blogDtoList.Add(blogDto);
}
}
return blogDtoList;
}
}