private async Task AddTags(Article article, IEnumerable <string> titles, bool setUpdated = false)
{
article.TagsIds ??= new List <string>();
foreach (string title in titles)
{
var tagId = _tagFactory.GetId(title);
var tag = await(await _client.Tag().FindAsync(x => x.Id == tagId).CAF()).FirstOrDefaultAsync().CAF();
if (tag is null)
{
tag = _tagFactory.CreateTag(title);
await _client.Tag().InsertOneAsync(tag).CAF();
}
else if (setUpdated)
{
_tagFactory.UpdateTag(tag);
}
article.TagsIds.Add(tagId);
}
}
public async Task <ArticleViewModel> Get(ArticlePrimaryKey primaryKey, string viewerUserId = null)
{
var article = await(await _client.Article().FindAsync(x => x.Id == primaryKey.Id).CAF())
.FirstOrDefaultAsync().CAF();
if (article is null)
{
return(null);
}
if ((!article.EverPublished || article.ForceFullyUnlisted || article.Draft) && article.AuthorId != viewerUserId)
{
return(null);
}
var author = await(await _client.User().FindAsync(x => x.Id == article.AuthorId).CAF())
.FirstOrDefaultAsync().CAF();
var tags = (await(await _client.Tag().FindAsync(x => article.TagsIds.Contains(x.Id)).CAF()).ToListAsync()
.CAF());
// TODO enable article series to bring articles in same series
return(new ArticleViewModel(article, tags, author.Name, new ArticleSeriesArticles()));
}
private static async Task MigrateTags(Data originalDbContext, IMongoClient targetMongoClient,
ILogger logger)
{
logger.LogCritical("Starting the tag collection");
var tagCollection = targetMongoClient.Tag();
await originalDbContext.Tag.AsNoTracking().ForEachAsync(async(tag) =>
{
var targetTag = await(await tagCollection.FindAsync(x => x.Id == tag.Id).CAF()).FirstOrDefaultAsync()
.CAF();
if (targetTag is null)
{
await tagCollection.InsertOneAsync(tag).CAF();
logger.LogCritical("Tag with id: {id} was added to MongoDB", tag.Id);
}
else
{
logger.LogCritical("Tag with id: {id} already exists in MongoDB", tag.Id);
}
}).CAF();
logger.LogCritical("Finished the tag collection");
}