/// <summary>
/// Adds a post
/// </summary>
/// <param name="post"></param>
/// <returns></returns>
public int AddPost(Post post)
{
using (var db = new BlogDbContext())
{
var postEnt = new PostEntity();
#region common
//postEnt.PostId = post.PostId;
postEnt.NavId = post.Nav.NavId;
postEnt.PostGuidId = post.PostGuidId;
postEnt.PostType = post.PostType;
postEnt.PostStatus = post.PostStatus;
postEnt.UserId = post.UserId;
postEnt.Subject = post.Subject;
postEnt.Body = post.Body;
postEnt.IP = post.IP;
postEnt.DateCreated = post.DateCreated;
postEnt.DateUpdated = post.DateUpdated;
postEnt.ViewCount = post.ViewCount;
#endregion
#region tags
if (post.Tags != null)
{
// Add new labels and association of label/post
foreach (var tag in post.Tags)
{
// find it
var tagEnt = db.TagEntities.FirstOrDefault(t => t.Name.ToLower() == tag.TagName.ToLower() && t.NavId == post.Nav.NavId);
// if tag is new, add the tag; if publish is true, set PostCount to 1 else to 0;
if (tagEnt == null)
{
tagEnt = new TagEntity();
tagEnt.Name = tag.TagName;
tagEnt.Description = tag.Description;
tagEnt.PostCount = post.PostStatus == PostStatus.Published ? 1 : 0;
tagEnt.NavId = post.Nav.NavId;
db.TagEntities.Add(tagEnt);
}
// if tag exists and publish is true, update PostCount to inc 1 else do nothing.
else if (post.PostStatus == PostStatus.Published)
{
tagEnt.PostCount++;
}
// add to tag/post association
postEnt.TagEntities.Add(tagEnt);
}
}
#endregion
#region type specific
if (post.PostType == PostType.Article)
{
Article article = (Article)post;
postEnt.Slug = article.RequireSlugValidationAtDataSource ?
_ValidateSlug(db, post.Nav, article.PostSlug, post.DateCreated) : article.PostSlug;
}
#endregion
#region archive
if (post.PostStatus == PostStatus.Published) // touch archive only if the post is published
{
// try find ent
var archiveEnt = db.ArchiveEntities.FirstOrDefault(a => a.NavId == post.Nav.NavId && a.Year == post.DateCreated.Year);
if (archiveEnt == null) // row not exist, add it
{
archiveEnt = new ArchiveEntity();
archiveEnt.NavId = post.Nav.NavId;
archiveEnt.Year = post.DateCreated.Year;
switch (post.DateCreated.Month)
{
case 1: archiveEnt.M01 = 1; break;
case 2: archiveEnt.M02 = 1; break;
case 3: archiveEnt.M03 = 1; break;
case 4: archiveEnt.M04 = 1; break;
case 5: archiveEnt.M05 = 1; break;
case 6: archiveEnt.M06 = 1; break;
case 7: archiveEnt.M07 = 1; break;
case 8: archiveEnt.M08 = 1; break;
case 9: archiveEnt.M09 = 1; break;
case 10: archiveEnt.M10 = 1; break;
case 11: archiveEnt.M11 = 1; break;
default: archiveEnt.M12 = 1; break;
}
db.ArchiveEntities.Add(archiveEnt);
}
else // otherwise update here
{
switch (post.DateCreated.Month)
{
case 1: archiveEnt.M01++; break;
case 2: archiveEnt.M02++; break;
case 3: archiveEnt.M03++; break;
case 4: archiveEnt.M04++; break;
case 5: archiveEnt.M05++; break;
case 6: archiveEnt.M06++; break;
case 7: archiveEnt.M07++; break;
case 8: archiveEnt.M08++; break;
case 9: archiveEnt.M09++; break;
case 10: archiveEnt.M10++; break;
case 11: archiveEnt.M11++; break;
default: archiveEnt.M12++; break;
}
}
}
#endregion
db.PostEntities.Add(postEnt);
db.SaveChanges();
return postEnt.PostId;
}
}
/// <summary>
///
/// </summary>
/// <param name="post"></param>
public void UpdatePost(Post post)
{
using (var db = new BlogDbContext())
{
// find the post as well as loading tags with it
var postEnt = db.PostEntities.Include(p => p.TagEntities).FirstOrDefault(p => p.PostId == post.PostId);
bool prevIsPublished = postEnt.PostStatus == PostStatus.Published;
bool wasPublished = postEnt.PostStatus == PostStatus.Published;
DateTime oldDateCreated = postEnt.DateCreated;
#region common
postEnt.NavId = post.Nav.NavId;
postEnt.PostGuidId = post.PostGuidId;
postEnt.PostType = post.PostType;
postEnt.UserId = post.UserId;
postEnt.Subject = post.Subject;
postEnt.Body = post.Body;
postEnt.IP = post.IP;
postEnt.DateCreated = post.DateCreated;
postEnt.DateUpdated = post.DateUpdated;
postEnt.ViewCount = post.ViewCount;
postEnt.PostStatus = post.PostStatus;
#endregion
#region tags
if (post.Tags != null)
{
// find all the tags that belong to this post
var existingTags = from t in db.TagEntities
from x in t.PostEntities
where x.PostId == post.PostId
select t;
// for each existing tag check if it's still in the coming tags
foreach (var existingTag in existingTags)
{
Tag tag = post.Tags.FirstOrDefault(t => t.TagName.ToLower() == existingTag.Name.ToLower());
// in coming tags does not have an existing tag anymore
if (tag == null)
{
if (existingTag.PostCount>0) existingTag.PostCount--; // an existing tag could have 0, because it was created with a save draft
postEnt.TagEntities.Remove(existingTag);
}
else // in coming tags still have an existing tag
{
if (prevIsPublished && post.PostStatus==PostStatus.Draft) // if it was pub, but now save as draft
{
existingTag.PostCount--;
}
else if (!prevIsPublished && post.PostStatus == PostStatus.Published) // if it was draft, but now publish it
{
existingTag.PostCount++;
}
post.Tags.Remove(tag); // remove an incoming tag that was also an existing tag
}
}
foreach (var tag in post.Tags)
{
// find it
var tagEnt = db.TagEntities.FirstOrDefault(t => t.Name.ToLower() == tag.TagName.ToLower() && t.NavId == post.Nav.NavId);
// if tag is new, add the tag; if publish is true, set PostCount to 1 else to 0;
if (tagEnt == null)
{
tagEnt = new TagEntity();
tagEnt.Name = tag.TagName;
tagEnt.Description = tag.Description;
tagEnt.PostCount = post.PostStatus == PostStatus.Published ? 1 : 0;
tagEnt.NavId = post.Nav.NavId;
db.TagEntities.Add(tagEnt);
}
// if tag exists and publish is true, update PostCount to inc 1 else do nothing.
else if (post.PostStatus == PostStatus.Published)
{
tagEnt.PostCount++;
}
// add to tag/post association
postEnt.TagEntities.Add(tagEnt);
}
}
#endregion
#region type specific
if (post.PostType == PostType.Article)
{
Article article = (Article)post;
postEnt.Slug = article.RequireSlugValidationAtDataSource ?
_ValidateSlug(db, post.Nav, article.PostSlug, post.DateCreated) : article.PostSlug;
}
#endregion
#region archive
// if it was pub or it is now pub, then we have to update archive, because user can update DateCreated or user can pub a draft;
if (wasPublished || post.PostStatus==PostStatus.Published)
{
int oldYear = oldDateCreated.Year;
int oldMonth = oldDateCreated.Month;
if (!wasPublished && post.PostStatus == PostStatus.Published)
{
#region case1: it was draft but now pub -> inc only
var archEnt = db.ArchiveEntities.FirstOrDefault(a => a.NavId == post.Nav.NavId && a.Year == post.DateCreated.Year);
if (archEnt != null) // the row exists, inc
{
switch (post.DateCreated.Month)
{
case 1: archEnt.M01++; break;
case 2: archEnt.M02++; break;
case 3: archEnt.M03++; break;
case 4: archEnt.M04++; break;
case 5: archEnt.M05++; break;
case 6: archEnt.M06++; break;
case 7: archEnt.M07++; break;
case 8: archEnt.M08++; break;
case 9: archEnt.M09++; break;
case 10: archEnt.M10++; break;
case 11: archEnt.M11++; break;
default: archEnt.M12++; break;
}
//db.UpdateObject(archEnt);
}
else // the row didn't exist, add and set to 1
{
archEnt = new ArchiveEntity();
archEnt.NavId = post.Nav.NavId;
archEnt.Year = post.DateCreated.Year;
switch (post.DateCreated.Month)
{
case 1: archEnt.M01 = 1; break;
case 2: archEnt.M02 = 1; break;
case 3: archEnt.M03 = 1; break;
case 4: archEnt.M04 = 1; break;
case 5: archEnt.M05 = 1; break;
case 6: archEnt.M06 = 1; break;
case 7: archEnt.M07 = 1; break;
case 8: archEnt.M08 = 1; break;
case 9: archEnt.M09 = 1; break;
case 10: archEnt.M10 = 1; break;
case 11: archEnt.M11 = 1; break;
default: archEnt.M12 = 1; break;
}
db.ArchiveEntities.Add(archEnt);
}
#endregion
}
else if (wasPublished && post.PostStatus==PostStatus.Draft)
{
#region case2: it was pub but now draft - dec only
var archEnt = db.ArchiveEntities.FirstOrDefault(a => a.NavId == post.Nav.NavId && a.Year == post.DateCreated.Year);
if (archEnt != null) // the row should exist since it was published
{
switch (oldMonth) // dec old month
{
case 1: archEnt.M01--; break;
case 2: archEnt.M02--; break;
case 3: archEnt.M03--; break;
case 4: archEnt.M04--; break;
case 5: archEnt.M05--; break;
case 6: archEnt.M06--; break;
case 7: archEnt.M07--; break;
case 8: archEnt.M08--; break;
case 9: archEnt.M09--; break;
case 10: archEnt.M10--; break;
case 11: archEnt.M11--; break;
default: archEnt.M12--; break;
}
}
#endregion
}
else if (oldYear != post.DateCreated.Year || oldMonth != post.DateCreated.Month)
{
#region case3: it was and still is published but not on the same year and month
var archEntOld = db.ArchiveEntities.FirstOrDefault(a => a.NavId == post.Nav.NavId && a.Year == oldYear);
var archEnt = db.ArchiveEntities.FirstOrDefault(a => a.NavId == post.Nav.NavId && a.Year == post.DateCreated.Year);
// dec old
if (archEntOld != null) // should exist
{
switch (oldMonth) // dec old month
{
case 1: archEntOld.M01--; break;
case 2: archEntOld.M02--; break;
case 3: archEntOld.M03--; break;
case 4: archEntOld.M04--; break;
case 5: archEntOld.M05--; break;
case 6: archEntOld.M06--; break;
case 7: archEntOld.M07--; break;
case 8: archEntOld.M08--; break;
case 9: archEntOld.M09--; break;
case 10: archEntOld.M10--; break;
case 11: archEntOld.M11--; break;
default: archEntOld.M12--; break;
}
}
// inc new
if (archEnt != null)
{
switch (post.DateCreated.Month)
{
case 1: archEnt.M01++; break;
case 2: archEnt.M02++; break;
case 3: archEnt.M03++; break;
case 4: archEnt.M04++; break;
case 5: archEnt.M05++; break;
case 6: archEnt.M06++; break;
case 7: archEnt.M07++; break;
case 8: archEnt.M08++; break;
case 9: archEnt.M09++; break;
case 10: archEnt.M10++; break;
case 11: archEnt.M11++; break;
default: archEnt.M12++; break;
}
}
else
{
archEnt = new ArchiveEntity();
archEnt.NavId = post.Nav.NavId;
archEnt.Year = post.DateCreated.Year;
switch (post.DateCreated.Month)
{
case 1: archEnt.M01 = 1; break;
case 2: archEnt.M02 = 1; break;
case 3: archEnt.M03 = 1; break;
case 4: archEnt.M04 = 1; break;
case 5: archEnt.M05 = 1; break;
case 6: archEnt.M06 = 1; break;
case 7: archEnt.M07 = 1; break;
case 8: archEnt.M08 = 1; break;
case 9: archEnt.M09 = 1; break;
case 10: archEnt.M10 = 1; break;
case 11: archEnt.M11 = 1; break;
default: archEnt.M12 = 1; break;
}
db.ArchiveEntities.Add(archEnt);
}
#endregion
}
}
#endregion
db.SaveChanges();
}
}
// --------------------------------------------------------------------
public int AddPost(Post post)
{
postList.Add(post);
post.PostId = postList.Count + 1; // need to set id or GetPost will fail
foreach (var tag in post.Tags)
{
tagList.Add(tag);
}
return post.PostId;
}
public void UpdatePost(Post post)
{
if (post.PostType == PostType.Article)
{
Article article = (Article)post;
var fan_post = (Article)postList.Find(p => p.PostId == post.PostId);
fan_post.Subject = post.Subject;
fan_post.Body = post.Body;
fan_post.DateCreated = post.DateCreated;
fan_post.IP = post.IP;
fan_post.PostSlug = post.PostSlug;
foreach (var tag in post.Tags)
{
tagList.Add(tag);
}
}
}
/// <summary>
/// Adds a post, returns its id.
/// </summary>
/// <param name="post"></param>
/// <returns></returns>
private static int _AddPost(Post post)
{
int postId = Provider.AddPost(post);
// ---------------------------------------------------------------- Cache
// Remove from cache
SiteCache.Remove(BlogHelper.GetCacheKey_Posts(post.Nav.Slug, QueryBy.Index)); // index page
SiteCache.Remove(BlogHelper.GetCacheKey_Tags(post.Nav.Slug)); // tag list
SiteCache.Remove(BlogHelper.GetCacheKey_Timeline(post.Nav.Slug)); // archive list
return postId;
}
/// <summary>
///
/// </summary>
/// <param name="post"></param>
/// <param name="previousPostSlug"></param>
/// <remarks>
/// </remarks>
public static void UpdatePost(Post post, string previousPostSlug)
{
Provider.UpdatePost(post);
// ---------------------------------------------------------------- Cache
// Remove from cache
SiteCache.Remove(BlogHelper.GetCacheKey_Post(post.Nav.Slug, post.PostId)); // post
SiteCache.Remove(BlogHelper.GetCacheKey_Posts(post.Nav.Slug, QueryBy.Index)); // index page
SiteCache.Remove(BlogHelper.GetCacheKey_Tags(post.Nav.Slug)); // tag list
SiteCache.Remove(BlogHelper.GetCacheKey_Timeline(post.Nav.Slug)); // archive list
}
/// <summary>
/// This is called when a visitor visits a blog post, it increases the view count for post view, daily veiw and total view.
/// </summary>
/// <remarks>
/// - There is a complex caching mechanism enforced here to update the count, it uses sliding right now
/// - This method decides if to inc the count, owner will NOT inc any count.
/// </remarks>
/// <seealso cref="http://msdn.microsoft.com/en-us/library/system.web.caching.cacheitemremovedcallback.aspx"/>
public static void IncViewCount(Post post)
{
if (!SiteContext.Current.IsAnonymous || post == null) return; // inc only for visitors
string ip = SiteContext.Current.IP;
// to debug this logic, set the TimeSpan to only a few seconds, so you don't have to wait long for it to hit break point
TimeSpan slidingExpiration = post.DateCreated.IsWithinXDays(14) ? new TimeSpan(0, 1, 0) : new TimeSpan(0, 0, 30); // need to update these value after testing
//TimeSpan slidingExpiration = new TimeSpan(0, 0, 5); // need to update these value after testing
#region inc post view
string postViewKey = BlogHelper.GetCacheKey_PostViewCount(post.Nav.Slug, post.PostId, post.DateCreated);
List<string> ipList_PostView = SiteCache.Get(postViewKey) as List<string>;
if (ipList_PostView == null) // list not in cache, create it, add the ip and put it to cache
{
ipList_PostView = new List<string>();
ipList_PostView.Add(ip);
SiteCache.Slide(postViewKey, ipList_PostView, slidingExpiration, _UpdatePostViewCountCallback);
}
else // list in cache, update it
{
// if not in list then add it
if (!ipList_PostView.Contains(ip))
{
ipList_PostView.Add(ip);
}
// when you use Remove it'll trigger the callback
if (ipList_PostView.Count >= 100)
{
HttpRuntime.Cache.Remove(postViewKey);
}
}
#endregion
}