public long AddUser(VoUser user)
{
//Demonstration of creating an AmbientDbContext in transaction mode
using (var dbContextScope = new DbContextScopeFactory().CreateAmbientDbContextInReadonlyMode <BloggerDbContext>())
{
var addedUser = _userOperations.AddUser(user);
dbContextScope.SaveChanges();
dbContextScope.Commit();
return(addedUser.UserId);
}
}
public void AddBlog(VoBlog voBlog)
{
//Demonstration of creating an AmbientDbContext in transaction mode
using (var dbContextScope = new DbContextScopeFactory().CreateAmbientDbContextInTransactionMode <BloggerDbContext>())
{
bool exceptionOccured = false;
var user = _userOperations.GetUser(voBlog.UserId);
try
{
Console.WriteLine("BlogPostCreationFailureCount :" + user.BlogPostCreationFailureCount);
var blog = _blogOperations.AddBlog(voBlog);
var post = _postOperations.AddPost(voBlog.Post);
blog.BlogPost = post;
dbContextScope.SaveChanges();
dbContextScope.Commit();
}
catch (Exception)
{
exceptionOccured = true;
throw;
}
finally
{
if (exceptionOccured)
{
var userOperations = new UserOperations();
using (
var nonAmbientdbContextScope =
new DbContextScopeFactory().CreateNonAmbientDbContextInTransactionMode <BloggerDbContext>())
{
//Setting the user operations dbContext with the dbContext from DbContextScope just created
//else we would be using ambient DbContext.
userOperations.UpdateBlogCreationFailureCount(voBlog.UserId);
var updateduser = userOperations.GetUser(voBlog.UserId);
nonAmbientdbContextScope.RefreshParentCacheWithUpdatedEntities(new List <User> {
updateduser
});
Console.WriteLine("BlogPostCreationFailureCount :" + user.BlogPostCreationFailureCount);
}
}
}
}
}