public async Task <IList <ArticleSeries> > GetSeries(string userId, ArticleSeriesType articleSeriesType)
{
Expression <Func <ArticleSeries, bool> > filter = (x) => articleSeriesType == ArticleSeriesType.Finished
? x.Finished
: articleSeriesType == ArticleSeriesType.Unfinished
? !x.Finished
: x.Finished || !x.Finished;
return(await(await _client.ArticleSeries().FindAsync(filter).CAF()).ToListAsync());
}
private static async Task MigrateArticleSeries(Data originalDbContext, IMongoClient targetMongoClient,
ILogger logger)
{
logger.LogCritical("Starting the article series collection");
var articleSeriesCollection = targetMongoClient.ArticleSeries();
await originalDbContext.ArticleSeries.AsNoTracking()
.Include(x => x.Articles)
.ForEachAsync(async(articleSeries) =>
{
var targetArticleSeries = await(await articleSeriesCollection.FindAsync(x => x.SeriesId == articleSeries.Id.ToString()).CAF()).FirstOrDefaultAsync()
.CAF();
if (targetArticleSeries is null)
{
articleSeries.SeriesId = articleSeries.Id.ToString();
articleSeries.ArticlesIds = articleSeries.Articles.Select(x => $"{x.CreatedYear.ToString()}-{x.TitleShrinked}").ToList();
await articleSeriesCollection.InsertOneAsync(articleSeries).CAF();
logger.LogCritical("Article Series with id: {id} was added to MongoDB", articleSeries.Id);
}
else
{
logger.LogCritical("Article Series with id: {id} already exists in MongoDB", articleSeries.Id);
}
}).CAF();
logger.LogCritical("Finished the article series collection");
}