public async Task <List <PopularTagDto> > GetPopularTags(GetPopularTagsInput input)
{
var postTags = await _postTagRepository.GetListAsync();
var postTagsGrouped = postTags.GroupBy(x => x.PostId)
.OrderByDescending(g => g.Count())
.SelectMany(g => g).Select(t => t.TagId).Distinct().ToList();
var popularTagDtos = new List <PopularTagDto>();
for (var i = 0; i < input.ResultCount && i < postTagsGrouped.Count; i++)
{
var tagId = postTagsGrouped[i];
var count = postTags.Count(t => t.TagId == tagId);
if (count < input.MinimumPostCount)
{
break;
}
var tag = await _tagRepository.GetAsync(tagId);
popularTagDtos.Add(new PopularTagDto
{
Tag = ObjectMapper.Map <Tag, TagDto>(tag),
Count = count
});
}
return(popularTagDtos);
}
public virtual async Task <List <TagDto> > GetPopularTagsAsync(Guid blogId, GetPopularTagsInput input)
{
return(await RequestAsync <List <TagDto> >(nameof(GetPopularTagsAsync), new ClientProxyRequestTypeValue
{
{ typeof(Guid), blogId },
{ typeof(GetPopularTagsInput), input }
}));
}
public async Task <List <TagDto> > GetPopularTags(Guid blogId, GetPopularTagsInput input)
{
var postTags = (await _tagRepository.GetListAsync(blogId)).OrderByDescending(t => t.UsageCount)
.WhereIf(input.MinimumPostCount != null, t => t.UsageCount >= input.MinimumPostCount)
.Take(input.ResultCount).ToList();
return(new List <TagDto>(
ObjectMapper.Map <List <Tag>, List <TagDto> >(postTags)));
}
/// <summary>
/// 获取流行的标签
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public async Task <List <TagListDto> > GetPopularTags(GetPopularTagsInput input)
{
var blogTags = await _tagRepository.GetAllListAsync();
var postTags = blogTags.OrderByDescending(t => t.UsageCount)
.WhereIf(input.MinimumPostCount != null, t => t.UsageCount >= input.MinimumPostCount)
.Take(input.ResultCount).ToList();
var dtos = ObjectMapper.Map <List <TagListDto> >(postTags);
return(dtos);
}
public Task <List <TagDto> > GetPopularTags(Guid blogId, GetPopularTagsInput input)
{
return(_tagAppService.GetPopularTags(blogId, input));
}
