public async Task AddOrUpdateBlogAsync(BlogEventArgs b)
{
using (var scope = _scopeFactory.CreateScope())
{
var util = scope.ServiceProvider.GetService <ContextlessBlogUtil>();
var tags = b.Tags;
if (tags == null)
{
var tagUtil = scope.ServiceProvider.GetService <TagUtil>();
tags = await tagUtil.GetTagsInBlogAsync(b.Model.BlogID);
}
var result = await _client.IndexAsync(BlogIndexed.FromBlogTag(b.Model, tags.Select(t => t.TagName), util.GetPostCount(b.Model)), i => i.Refresh(Elasticsearch.Net.Refresh.True));
if (!result.IsValid)
{
_logger.LogError(result.DebugInformation);
}
}
}
public async Task <IEnumerable <Blog> > GetRecommendationAsync(Blog blog, IEnumerable <string> tags, int count)
{
if (!IsValid())
{
return(Enumerable.Empty <Blog>());
}
var result = await _client.SearchAsync <BlogIndexed>(
s => s.Query(q => q.Bool(b => b.Should(
bs => bs.MoreLikeThis(mlt =>
mlt.Like(l => l.Document(d => d.Document(BlogIndexed.FromBlogTag(blog, tags, 0)).Id(null)))
.MinTermFrequency(1).Fields(new string[] { "title", "tags" })),
bs => bs.Term("categoryId", blog.CategoryID))
.MustNot(
bs => bs.Ids(i => i.Values(blog.BlogID)),
bs => bs.Term("isApproved", false)))).Size(count),
_httpContext.RequestAborted);
if (result.IsValid)
{
return(result.Documents.Select(d => d.ToBlog()));
}
return(Enumerable.Empty <Blog>());
}
