private static async Task MigrateArticles(Data originalDbContext, IMongoClient targetMongoClient,
ILogger logger)
{
logger.LogCritical("Starting the article collection");
var articleCollection = targetMongoClient.Article();
await originalDbContext.Article.AsNoTracking()
.Include(x => x.Tags)
.ForEachAsync(async(article) =>
{
string articleId = $"{article.CreatedYear.ToString()}-{article.TitleShrinked}";
var targetArticle = await(await articleCollection.FindAsync(x => x.Id == articleId).CAF()).FirstOrDefaultAsync()
.CAF();
if (targetArticle is null)
{
article.Id = articleId;
article.TagsIds = article.Tags.Select(x => x.TagId).ToList();
await articleCollection.InsertOneAsync(article).CAF();
logger.LogCritical("Article with id: {id} was added to MongoDB", articleId);
}
else
{
logger.LogCritical("Article with id: {id} already exists in MongoDB", articleId);
}
}).CAF();
logger.LogCritical("Finished the article collection");
}
public async Task AddOrUpdateTagsPerArticle(ArticlePrimaryKey articlePrimaryKey, IEnumerable <string> titles)
{
var article = await(await _client.Article().FindAsync(x => x.Id == articlePrimaryKey.Id).CAF())
.FirstOrDefaultAsync().CAF();
if (article?.TagsIds?.Count > 0)
{
await UpdateTags(article, titles).CAF();
}
else
{
await AddTags(article, titles).CAF();
}
await _client.Article().FindOneAndReplaceAsync(x => x.Id == articlePrimaryKey.Id, article).CAF();
}
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()));
}