public IEnumerable<Entry> GetEntries(int blogId)
{
using (_context = _contextFactory.CreateContext())
{
return _context.Entries.Where(e => e.BlogId == blogId).ToList();
}
}
public IList<Blog> GetBlogs()
{
using (_context = _contextFactory.CreateContext())
{
return _context.Blogs.Include(b => b.Entries).ToList();
}
}
public void AddEntry(int blogId, string title, string body)
{
if (String.IsNullOrWhiteSpace(title))
{
throw new ArgumentNullException("title");
}
if (String.IsNullOrWhiteSpace(body))
{
throw new ArgumentNullException("body");
}
using (_context = _contextFactory.CreateContext())
{
Blog blog = _context.Blogs.SingleOrDefault(b => b.BlogId == blogId);
if (blog == null)
{
throw new ObjectDoesNotExistException("blog");
}
Entry entry = new Entry(title, body);
blog.AddEntry(entry);
_context.Entries.Add(entry);
_context.SaveChanges();
}
}
public void RemoveBlog(int blogId)
{
using (_context = _contextFactory.CreateContext())
{
Blog blog = _context.Blogs.SingleOrDefault(b => b.BlogId == blogId);
_context.Blogs.Remove(blog);
_context.SaveChanges();
}
}
public void AddBlog(Blog blog)
{
if (blog == null)
{
throw new ArgumentNullException("blog");
}
using (_context = _contextFactory.CreateContext())
{
_context.Blogs.Add(blog);
_context.SaveChanges();
}
}
public void EditEntry(int entryId, string title, string body)
{
using (_context = _contextFactory.CreateContext())
{
Entry entry = _context.Entries.SingleOrDefault(e => e.EntryId == entryId);
if (entry == null)
{
throw new ObjectDoesNotExistException("entry does not exist with id " + entryId);
}
entry.EditEntry(title, body);
_context.SaveChanges();
}
}
public void RemoveEntry(int blogId, int entryId)
{
using (_context = _contextFactory.CreateContext())
{
Blog blog = _context.Blogs.Include(o => o.Entries).SingleOrDefault(b => b.BlogId == blogId);
if (blog == null)
{
throw new ObjectDoesNotExistException("blog");
}
Entry entry = blog.Entries.SingleOrDefault(e => e.EntryId == entryId);
if (entry == null)
{
throw new ObjectDoesNotExistException("entry");
}
blog.RemoveEntry(entry.EntryId);
_context.Entries.Remove(entry);
_context.SaveChanges();
}
}
public Entry GetEntry(int entryId)
{
using (_context = _contextFactory.CreateContext())
{
Entry entry = _context.Entries.SingleOrDefault(e => e.EntryId == entryId);
return entry;
}
}
