/// <summary>
/// 发表评论
/// </summary>
/// <param name="personId">PersonID</param>
/// <param name="blogId">BlogID</param>
/// <param name="content">评论内容</param>
/// <param name="photoContentIds">评论附带图片的ID集合</param>
/// <param name="baseCommentId">被评论的CommentID</param>
/// <returns></returns>
public async Task<CommentDTO> AddCommentAsync(long personId, long blogId, string content, List<long> photoContentIds = null, long? baseCommentId = null)
{
using(KoalaBlogDbContext dbContext = new KoalaBlogDbContext())
{
PersonHandler perHandler = new PersonHandler(dbContext);
AvatarHandler avatarHandler = new AvatarHandler(dbContext);
CommentHandler commentHandler = new CommentHandler(dbContext);
//1. 发表评论并返回Comment Entity对象。
var comment = await commentHandler.AddCommentAsync(personId, blogId, content, photoContentIds, baseCommentId);
//2. 将Entity对象Convert为DTO对象。
var commentDto = comment.ToDTO();
//3. 判断Person对象是否为空，如果为空则获取。
if (commentDto.Person == null)
{
var personEntity = await perHandler.GetByIdAsync(comment.PersonID);
if (personEntity != null)
{
commentDto.Person = personEntity.ToDTO();
//3.1 判断头像Url是否已经获取。
if (string.IsNullOrEmpty(commentDto.Person.AvatarUrl))
{
commentDto.Person.AvatarUrl = await avatarHandler.GetActiveAvatarUrlByPersonId(comment.PersonID);
}
}
}
else
{
//3.2 如果Person对象不为空，判断头像Url是否已经获取。
if (string.IsNullOrEmpty(commentDto.Person.AvatarUrl))
{
commentDto.Person.AvatarUrl = await avatarHandler.GetActiveAvatarUrlByPersonId(comment.PersonID);
}
}
//4. 判断此评论是否评论了其他的评论。
if(comment.NewCommentXComments != null && comment.NewCommentXComments.Count > 0)
{
commentDto.BaseComment = comment.NewCommentXComments.First().BaseComment.ToDTO();
//4.1 判断Person对象是否为空，如果为空则获取，这里暂时不需要获取Avatar。
if (commentDto.BaseComment.Person == null)
{
var personEntity = await perHandler.GetByIdAsync(comment.NewCommentXComments.First().BaseComment.PersonID);
if (personEntity != null)
{
commentDto.BaseComment.Person = personEntity.ToDTO();
}
}
}
return commentDto;
}
}
/// <summary>
/// 根据PersonID获取Person
/// </summary>
/// <param name="personId">PersonID</param>
/// <returns></returns>
public async Task<Person> GetPersonByIdAsync(long personId)
{
using(KoalaBlogDbContext dbContext = new KoalaBlogDbContext())
{
PersonHandler perHandler = new PersonHandler(dbContext);
return await perHandler.GetByIdAsync(personId);
}
}
/// <summary>
/// 获取Blog的评论
/// </summary>
/// <param name="blogId">BlogID</param>
/// <param name="pageIndex"></param>
/// <param name="pageSize"></param>
/// <returns></returns>
public async Task<Tuple<int, List<CommentDTO>>> GetCommentsAsync(long blogId, int pageIndex, int pageSize)
{
using(KoalaBlogDbContext dbContext = new KoalaBlogDbContext())
{
int totalCommentCount = 0;
List<CommentDTO> commentDtoList = null;
PersonHandler perHandler = new PersonHandler(dbContext);
AvatarHandler avatarHandler = new AvatarHandler(dbContext);
CommentHandler commentHandler = new CommentHandler(dbContext);
CommentXContentHandler cxContentHandler = new CommentXContentHandler(dbContext);
CommentXCommentHandler cxCommentHandler = new CommentXCommentHandler(dbContext);
//1. 获取Blog评论列表。
var comments = await commentHandler.GetCommentsAsync(blogId, pageIndex, pageSize);
if (comments.Count > 0)
{
commentDtoList = new List<CommentDTO>();
foreach (var comment in comments)
{
CommentDTO commentDto = comment.ToDTO();
//2. 判断Person对象是否为空，如果为空则获取。
if (commentDto.Person == null)
{
var personEntity = await perHandler.GetByIdAsync(comment.PersonID);
if (personEntity != null)
{
commentDto.Person = personEntity.ToDTO();
//2.1 判断头像Url是否已经获取。
if (string.IsNullOrEmpty(commentDto.Person.AvatarUrl))
{
commentDto.Person.AvatarUrl = await avatarHandler.GetActiveAvatarUrlByPersonId(comment.PersonID);
}
}
}
else
{
//2.2 如果Person对象不为空，判断头像Url是否已经获取。
if (string.IsNullOrEmpty(commentDto.Person.AvatarUrl))
{
commentDto.Person.AvatarUrl = await avatarHandler.GetActiveAvatarUrlByPersonId(comment.PersonID);
}
}
//3. 判断Contents集合是否为空，如果为空则获取。
if (commentDto.Contents == null)
{
List<Content> contentList = await cxContentHandler.GetContentsAsync(comment.ID);
if (contentList != null && contentList.Count > 0)
{
commentDto.Contents = new List<ContentDTO>();
foreach (var content in contentList)
{
ContentDTO contentDto = content.ToDTO();
commentDto.Contents.Add(contentDto);
}
}
}
//4. 判断此评论是否评论了其他的评论。
if (commentDto.BaseComment == null)
{
Comment baseComment = await cxCommentHandler.GetBaseCommentByCommentIdAsync(comment.ID);
if (baseComment != null)
{
commentDto.BaseComment = baseComment.ToDTO();
//4.1 判断Person对象是否为空，如果为空则获取，这里暂时不需要获取Avatar。
if (commentDto.BaseComment.Person == null)
{
var personEntity = await perHandler.GetByIdAsync(baseComment.PersonID);
if (personEntity != null)
{
commentDto.BaseComment.Person = personEntity.ToDTO();
}
}
}
}
//5. 获取评论点赞数量Task。
Task<int> likeCountTask = GetCommentLikeCountAsync(comment.ID);
//6. 判断用户是否点赞了此评论Task。
Task<bool> isLikeTask = IsLikeAsync(CurrentThreadIdentityObject.PersonID, comment.ID);
commentDto.IsLike = await isLikeTask;
commentDto.LikeCount = await likeCountTask;
commentDtoList.Add(commentDto);
}
//7. 获取Blog的总评论数量。
totalCommentCount = await GetCommentCountAsync(blogId);
}
return new Tuple<int, List<CommentDTO>>(totalCommentCount, commentDtoList);
}
}
public async Task Test_03_ModifyPersonInfoAsync()
{
using(KoalaBlogDbContext dbContext = new KoalaBlogDbContext())
{
//1. Create a test person obj.
PersonHandler perHandler = new PersonHandler(dbContext);
Person p = new Person()
{
RealName = "testJay",
NickName = "testMayBeJay",
Gender = Gender.Female,
DOB = new DateTime(2015, 8, 23),
RealNameAccessLevel = PersonInfoAccessInfo.MyselfOnly,
SexualTrendAccessLevel = PersonInfoAccessInfo.MyselfOnly,
MaritalStatusAccessLevel = PersonInfoAccessInfo.MyselfOnly,
QQAccessLevel = PersonInfoAccessInfo.MyselfOnly,
DOBAccessLevel = PersonInfoAccessInfo.MyselfOnly,
BloodTypeAccessLevel = PersonInfoAccessInfo.MyselfOnly,
HomePageAccessLevel = PersonInfoAccessInfo.MyselfOnly
};
perHandler.Add(p);
await perHandler.SaveChangesAsync();
Assert.AreNotEqual(p.ID, 0);
//2. Modify person info.
Person beModifiedPerson = await perHandler.GetByIdAsync(p.ID);
beModifiedPerson.RealName = "testGoodMan";
beModifiedPerson.NickName = "testIAMGoodMan";
beModifiedPerson.Gender = Gender.Male;
beModifiedPerson.DOB = new DateTime(2015, 8, 21);
beModifiedPerson.RealNameAccessLevel = PersonInfoAccessInfo.All;
beModifiedPerson.DOBAccessLevel = PersonInfoAccessInfo.FollowerOnly;
await perHandler.ModifyPersonInfoAsync(beModifiedPerson);
//3. Test the modified person.
Person modifiedPerson = await perHandler.GetByIdAsync(p.ID);
Assert.IsNotNull(modifiedPerson);
Assert.AreEqual(modifiedPerson.RealName, "testGoodMan");
Assert.AreEqual(modifiedPerson.NickName, "testIAMGoodMan");
Assert.AreEqual(modifiedPerson.Gender, Gender.Male);
Assert.AreEqual(modifiedPerson.RealNameAccessLevel, PersonInfoAccessInfo.All);
Assert.AreEqual(modifiedPerson.DOBAccessLevel, PersonInfoAccessInfo.FollowerOnly);
Assert.AreEqual(modifiedPerson.HomePageAccessLevel, PersonInfoAccessInfo.MyselfOnly);
}
}
public async Task Test_02_ModifyPersonNickNameAsync()
{
using(KoalaBlogDbContext dbContext = new KoalaBlogDbContext())
{
//1. Create a test person obj.
PersonHandler perHandler = new PersonHandler(dbContext);
Person p = new Person()
{
RealName = "testMike",
NickName = "testIAMMike",
Gender = Gender.Male,
DOB = new DateTime(2015, 7, 15),
RealNameAccessLevel = PersonInfoAccessInfo.MyselfOnly,
SexualTrendAccessLevel = PersonInfoAccessInfo.MyselfOnly,
MaritalStatusAccessLevel = PersonInfoAccessInfo.MyselfOnly,
QQAccessLevel = PersonInfoAccessInfo.MyselfOnly,
DOBAccessLevel = PersonInfoAccessInfo.MyselfOnly,
BloodTypeAccessLevel = PersonInfoAccessInfo.MyselfOnly,
HomePageAccessLevel = PersonInfoAccessInfo.MyselfOnly
};
perHandler.Add(p);
await perHandler.SaveChangesAsync();
Assert.AreNotEqual(p.ID, 0);
//2. Modify the person nick name and test it.
bool isSucceed = await perHandler.ModifyPersonNickNameAsync(p.ID, "testIAMShy");
Assert.IsTrue(isSucceed);
//2.1 Get the person by id
Person modifiedPerson = await perHandler.GetByIdAsync(p.ID);
Assert.IsNotNull(modifiedPerson);
Assert.AreEqual(modifiedPerson.NickName, "testIAMShy");
Assert.AreEqual(modifiedPerson.RealName, "testMike");
Assert.AreEqual(modifiedPerson.Gender, Gender.Male);
Assert.AreEqual(modifiedPerson.DOB, new DateTime(2015, 7, 15));
Assert.AreEqual(modifiedPerson.RealNameAccessLevel, PersonInfoAccessInfo.MyselfOnly);
//3. Give the error parameter and test it.
bool isChecked = false;
try
{
isSucceed = await perHandler.ModifyPersonNickNameAsync(0, "testSorryShy");
}
catch (Exception ex)
{
isChecked = true;
Assert.AreEqual(ex.GetType(), typeof(AssertException));
Assert.AreEqual(ex.Message, "personId must be greater than zero");
}
Assert.IsTrue(isChecked);
isChecked = false;
try
{
isSucceed = await perHandler.ModifyPersonNickNameAsync(0, "");
}
catch (Exception ex)
{
isChecked = true;
Assert.AreEqual(ex.GetType(), typeof(AssertException));
AssertException assertException = ex as AssertException;
Assert.IsNotNull(assertException.ExceptionMessageList);
Assert.AreEqual(assertException.ExceptionMessageList.Count, 2);
Assert.AreEqual(assertException.ExceptionMessageList[0], "personId must be greater than zero");
Assert.AreEqual(assertException.ExceptionMessageList[1], "nickName can't be empty");
}
Assert.IsTrue(isChecked);
isChecked = false;
try
{
isSucceed = await perHandler.ModifyPersonNickNameAsync(99999999, "testIAMShy");
}
catch (Exception ex)
{
isChecked = true;
Assert.AreEqual(ex.GetType(), typeof(AssertException));
Assert.AreEqual(ex.Message, "This person doesn't exist");
}
Assert.IsTrue(isChecked);
}
}
/// <summary>
/// 添加一条评论
/// </summary>
/// <param name="personId">评论者ID</param>
/// <param name="blogId">评论的BlogID</param>
/// <param name="content">评论内容</param>
/// <param name="photoContentIds">评论的附件ID(仅限图片)</param>
/// <param name="baseCommentId">被评论的CommentID</param>
/// <returns></returns>
public async Task<Comment> AddCommentAsync(long personId, long blogId, string content, List<long> photoContentIds = null, long? baseCommentId = null)
{
BlogHandler blogHandler = new BlogHandler(_dbContext);
GroupHandler groupHandler = new GroupHandler(_dbContext);
PersonHandler perHandler = new PersonHandler(_dbContext);
//1. 检查要评论的Blog是否存在。
Blog beCommentBlog = await blogHandler.GetByIdAsync(blogId);
//2. 如果为空或者被逻辑删除，则Exception。
if (beCommentBlog == null || beCommentBlog.IsDeleted)
{
throw new DisplayableException("要评论的Blog不存在或者已经被删除");
}
//2.1 自己评论自己的Blog永远可以，所以只需要判断不同的PersonID。
if(beCommentBlog.PersonID != personId)
{
//3. 检查当前用户是否被该评论Blog的用户加入了黑名单，如果是则不能进行评论。
Group beCommentBlogPersonBlackList = await groupHandler.Include(x => x.GroupMembers).SingleOrDefaultAsync(x => x.PersonID == beCommentBlog.PersonID && x.Type == GroupType.BlackList);
if (beCommentBlogPersonBlackList != null && beCommentBlogPersonBlackList.GroupMembers.Count > 0)
{
bool isBlocked = beCommentBlogPersonBlackList.GroupMembers.Select(x => x.PersonID).Contains(personId);
if (isBlocked)
{
throw new DisplayableException("由于用户设置，你无法回复评论。");
}
}
//4. 检查评论Blog的用户消息设置，是否允许评论。
Person beCommentBlogPerson = await perHandler.GetByIdAsync(beCommentBlog.PersonID);
if (beCommentBlogPerson != null)
{
//4.1 如果评论只允许关注的人评论，则判断Blog的用户的是否关注了当前用户。
if (beCommentBlogPerson.AllowablePersonForComment == AllowablePersonForComment.FollowerOnly)
{
//4.2 判断关注的人集合是否已经加载。
if (!_dbContext.Entry(beCommentBlogPerson).Collection(x => x.MyFollowingPersons).IsLoaded)
{
_dbContext.Entry(beCommentBlogPerson).Collection(x => x.MyFollowingPersons).Load();
}
bool isFollow = beCommentBlogPerson.MyFollowingPersons.Select(x => x.FollowingID).Contains(personId);
if (!isFollow)
{
throw new DisplayableException("由于用户设置，你无法回复评论。");
}
}
//4.3 如果评论只允许粉丝评论，则判断当前用户是否关注了该Blog用户。
else if (beCommentBlogPerson.AllowablePersonForComment == AllowablePersonForComment.FansOnly)
{
//4.4 判断粉丝集合是否已经加载。
if (!_dbContext.Entry(beCommentBlogPerson).Collection(x => x.MyFans).IsLoaded)
{
_dbContext.Entry(beCommentBlogPerson).Collection(x => x.MyFans).Load();
}
bool isFans = beCommentBlogPerson.MyFans.Select(x => x.FollowerID).Contains(personId);
if (!isFans)
{
throw new DisplayableException("由于用户设置，你无法回复评论。");
}
}
}
//5. 检查评论Blog的用户消息设置，是否允许评论附带图片。
if(photoContentIds != null && photoContentIds.Count > 0)
{
if(!beCommentBlogPerson.AllowCommentAttachContent)
{
throw new DisplayableException("由于用户设置，你回复评论无法添加图片。");
}
}
}
using(var dbTransaction = _dbContext.Database.BeginTransaction())
{
try
{
//6. 建立Comment对象并保存。
Comment comment = new Comment()
{
PersonID = personId,
BlogID = blogId,
Content = content
};
this.Add(comment);
await SaveChangesAsync();
//7. 判断是否有图片，有则建立与Comment的关联。
if (photoContentIds != null && photoContentIds.Count > 0)
{
if(photoContentIds.Count > 6)
{
throw new DisplayableException("评论最多附件6张图片");
}
ContentHandler contentHandler = new ContentHandler(_dbContext);
//7.1 判断附件是否为图片。
List<Content> photoContents = await contentHandler.Fetch(x => photoContentIds.Contains(x.ID)).ToListAsync();
if(!photoContents.Any(x => x.Type == ContentType.Photo))
{
throw new DisplayableException("评论只能附件图片");
}
//7.2 建立Comment与Content的关联。
CommentXContentHandler cxcHandler = new CommentXContentHandler(_dbContext);
foreach (var photoContentId in photoContentIds)
{
CommentXContent cxc = new CommentXContent()
{
CommentID = comment.ID,
ContentID = photoContentId
};
cxcHandler.Add(cxc);
}
await SaveChangesAsync();
}
//8. 判断当前评论是否评论Blog里的其他评论，如果是则建立关联。
if(baseCommentId != null)
{
//8.1 判断被评论ID是否存在。
Comment baseComment = await GetByIdAsync(baseCommentId);
if(baseComment == null)
{
throw new DisplayableException("此评论不存在或者已经被删除");
}
//8.2 判断被评论的BlogID是否与当前评论的BlogID一致。
if(baseComment.BlogID != blogId)
{
throw new DisplayableException("此评论的BlogID与被评论的BlogID不一致");
}
//8.3 建立关联。
CommentXCommentHandler cxcHandler = new CommentXCommentHandler(_dbContext);
CommentXComment cxc = new CommentXComment()
{
BaseCommentID = (long)baseCommentId,
NewCommentID = comment.ID
};
cxcHandler.Add(cxc);
await SaveChangesAsync();
}
dbTransaction.Commit();
return comment;
}
catch (Exception)
{
dbTransaction.Rollback();
throw;
}
}
}
/// <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;
}
}
/// <summary>
/// 发布一篇Blog
/// </summary>
/// <param name="personId">PersonID</param>
/// <param name="content">Blog的内容</param>
/// <param name="attachContents">Blog的附件</param>
/// <param name="accessInfo">Blog的访问控制</param>
/// <param name="groupId">当Blog的访问控制为群可见则需要指定GroupID</param>
/// <param name="forwardBlogId">转发的BlogID</param>
/// <returns></returns>
public async Task<BlogDTO> CreateBlogAsync(long personId, string content, BlogInfoAccessInfo accessInfo, long? groupId = null, List<long> attachContentIds = null, long? forwardBlogId = null)
{
using(KoalaBlogDbContext dbContext = new KoalaBlogDbContext())
{
BlogHandler blogHandler = new BlogHandler(dbContext);
PersonHandler perHandler = new PersonHandler(dbContext);
AvatarHandler avatarHandler = new AvatarHandler(dbContext);
//1. 发布Blog并返回Blog Entity对象。
var blog = await blogHandler.CreateBlogAsync(personId, content, accessInfo, groupId, attachContentIds, forwardBlogId);
//2. 将Entity对象Convert为DTO对象。
var result = blog.ToDTO();
//3. 判断Person对象是否为空，如果为空则获取。
if(result.Person == null)
{
var personEntity = await perHandler.GetByIdAsync(blog.PersonID);
if (personEntity != null)
{
result.Person = personEntity.ToDTO();
//3.1 判断头像Url是否已经获取。
if (string.IsNullOrEmpty(result.Person.AvatarUrl))
{
result.Person.AvatarUrl = await avatarHandler.GetActiveAvatarUrlByPersonId(result.Person.ID);
}
}
}
else
{
//3.2 如果Person对象不为空，判断头像Url是否已经获取。
if (string.IsNullOrEmpty(result.Person.AvatarUrl))
{
result.Person.AvatarUrl = await avatarHandler.GetActiveAvatarUrlByPersonId(result.Person.ID);
}
}
//4. 判断是否转发了Blog，转发了则获取转发Blog的信息。
if(blog.NewBlogXBlogs != null && blog.NewBlogXBlogs.Count > 0)
{
var baseBlogXblog = blog.NewBlogXBlogs.SingleOrDefault(x => x.IsBase);
if(baseBlogXblog != null)
{
CommentHandler commentHandler = new CommentHandler(dbContext);
BlogXBlogHandler bxbHandler = new BlogXBlogHandler(dbContext);
EntityLikeHandler likeHandler = new EntityLikeHandler(dbContext);
BlogXContentHandler bxcHandler = new BlogXContentHandler(dbContext);
result.BaseBlog = baseBlogXblog.BaseBlog.ToDTO();
//4.1 判断转发了Blog的Person对象是否为空，如果空则获取。
if(result.BaseBlog.Person == null)
{
var personEntity = await perHandler.GetByIdAsync(baseBlogXblog.BaseBlog.PersonID);
if (personEntity != null)
{
result.BaseBlog.Person = personEntity.ToDTO();
}
}
//4.2 判断转发了Blog的是否有图片等等。
List<Content> contentList = await bxcHandler.GetContentsAsync(result.BaseBlog.ID);
if(contentList != null && contentList.Count > 0)
{
result.BaseBlog.Contents = new List<ContentDTO>();
foreach (var contentObj in contentList)
{
ContentDTO contentDto = contentObj.ToDTO();
result.BaseBlog.Contents.Add(contentDto);
}
}
//4.3 获取转发的Blog的转发数量。
result.BaseBlog.RepostCount = await bxbHandler.GetRepostCountAsync(result.BaseBlog.ID);
//4.4 获取转发的Blog的评论数量。
result.BaseBlog.CommentCount = await commentHandler.GetCommentCountAsync(result.BaseBlog.ID);
//4.5 获取转发的Blog的点赞数量
result.BaseBlog.LikeCount = await likeHandler.GetBlogLikeCountAsync(result.BaseBlog.ID);
//4.6 获取转发的Blog是否已经点赞。
result.BaseBlog.IsLike = await likeHandler.IsLikeAsync(personId, result.BaseBlog.ID, typeof(Blog));
}
}
return result;
}
}
/// <summary>
/// 获取用户关注的人Blog
/// </summary>
/// <param name="personId">PersonID</param>
/// <param name="groupId">GroupID</param>
/// <param name="pageIndex">页码</param>
/// <param name="pageSize">数量/页</param>
/// <returns></returns>
public async Task<List<BlogDTO>> GetBlogsAsync(long personId, long? groupId, int pageIndex, int pageSize)
{
using(KoalaBlogDbContext dbContext = new KoalaBlogDbContext())
{
List<BlogDTO> blogDtoList = null;
BlogHandler blogHandler = new BlogHandler(dbContext);
//1. 获取正在关注的人Blog集合。
var blogs = await blogHandler.GetBlogsAsync(personId, groupId, pageIndex, pageSize);
if (blogs.Count > 0)
{
PersonHandler perHandler = new PersonHandler(dbContext);
AvatarHandler avatarHandler = new AvatarHandler(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();
//3.1 判断头像Url是否已经获取。
if (string.IsNullOrEmpty(blogDto.Person.AvatarUrl))
{
blogDto.Person.AvatarUrl = await avatarHandler.GetActiveAvatarUrlByPersonId(blogDto.Person.ID);
}
}
}
else
{
//2.2 如果Person对象不为空，判断头像Url是否已经获取。
if (string.IsNullOrEmpty(blogDto.Person.AvatarUrl))
{
blogDto.Person.AvatarUrl = await avatarHandler.GetActiveAvatarUrlByPersonId(blogDto.Person.ID);
}
}
//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. 获取用户是否收藏了Blog的Task。
Task<bool> isFavoriteTask = IsFavoriteAsync(personId, blog.ID);
//6. 获取评论数量的Task。
CommentManager commentManager = new CommentManager();
Task<int> commentCountTask = commentManager.GetCommentCountAsync(blog.ID);
//7. 获取转发数量的Task。
Task<int> repostCountTask = GetRepostCountAsync(blog.ID);
//8. 获取点赞数量和用户是否已经点赞的Task。
Task<Tuple<int, bool>> likeObjTask = GetLikeObjectAsync(personId, blog.ID);
blogDto.IsFavorite = await isFavoriteTask;
blogDto.CommentCount = await commentCountTask;
blogDto.RepostCount = await repostCountTask;
//9. 获取点赞数量和用户是否点赞的对象Tuple，赋值。
Tuple<int, bool> likeObj = await likeObjTask;
blogDto.IsLike = likeObj.Item2;
blogDto.LikeCount = likeObj.Item1;
blogDtoList.Add(blogDto);
}
}
return blogDtoList;
}
}