protected override void OnModelCreating(ModelBuilder modelBuilder)
{
var homePage = new ArticleDAO
{
Id = 1,
Topic = "Home Page",
Slug = "home-page",
Content = "This is the default home page. Please change me!",
Published = Instant.FromDateTimeUtc(new DateTime(2018, 6, 19, 14, 31, 2, 265, DateTimeKind.Utc)),
AuthorId = Guid.Empty
};
var homePageHistory = ArticleHistoryDAO.FromArticle(homePage);
homePageHistory.Id = 1;
homePageHistory.Article = null;
modelBuilder.Entity <ArticleDAO>(entity =>
{
entity.HasIndex(a => a.Slug).IsUnique();
entity.HasData(homePage);
});
modelBuilder.Entity <ArticleHistoryDAO>(entity =>
{
entity.HasData(homePageHistory);
});
modelBuilder.Entity <SlugHistoryDAO>(entity =>
{
entity.HasIndex(a => new { a.OldSlug, a.AddedDateTime });
});
}
public async Task <Article> CreateArticleAndHistory(Article article)
{
var efArticle = ArticleDAO.FromDomain(article);
Context.Articles.Add(efArticle);
Context.ArticleHistories.Add(ArticleHistoryDAO.FromArticle(efArticle));
await Context.SaveChangesAsync();
return(efArticle.ToDomain());
}
public async Task Update(Article article)
{
var efArticle = ArticleDAO.FromDomain(article);
Context.Attach(efArticle).State = EntityState.Modified;
Context.ArticleHistories.Add(ArticleHistoryDAO.FromArticle(efArticle));
try
{
await Context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!await Exists(article.Id))
{
throw new ArticleNotFoundException();
}
else
{
throw;
}
}
}