public BlogChangingEventArgs OnBlogChanging(UpdatingBlogModel beforeUpdate, UpdatingBlogModel afterUpdate)
{
var args = new BlogChangingEventArgs(beforeUpdate, afterUpdate);
if (BlogChanging != null)
{
BlogChanging(args);
}
return args;
}
/// <summary>
/// Saves the blog post.
/// </summary>
/// <param name="request">The request.</param>
/// <param name="childContentOptionValues">The child content option values.</param>
/// <param name="principal">The principal.</param>
/// <param name="errorMessages">The error messages.</param>
/// <returns>
/// Saved blog post entity
/// </returns>
/// <exception cref="System.ComponentModel.DataAnnotations.ValidationException"></exception>
/// <exception cref="SecurityException">Forbidden: Access is denied.</exception>
public BlogPost SaveBlogPost(BlogPostViewModel request, IList<ContentOptionValuesViewModel> childContentOptionValues, IPrincipal principal, out string[] errorMessages)
{
errorMessages = new string[0];
string[] roles;
if (request.DesirableStatus == ContentStatus.Published)
{
accessControlService.DemandAccess(principal, RootModuleConstants.UserRoles.PublishContent);
roles = new[] { RootModuleConstants.UserRoles.PublishContent };
}
else
{
accessControlService.DemandAccess(principal, RootModuleConstants.UserRoles.EditContent);
roles = new[] { RootModuleConstants.UserRoles.EditContent };
}
var isNew = request.Id.HasDefaultValue();
var userCanEdit = securityService.IsAuthorized(RootModuleConstants.UserRoles.EditContent);
ValidateData(isNew, request);
BlogPost blogPost;
BlogPostContent content;
PageContent pageContent;
GetBlogPostAndContentEntities(request, principal, roles, ref isNew, out content, out pageContent, out blogPost);
var beforeChange = new UpdatingBlogModel(blogPost);
// Master page / layout
Layout layout;
Page masterPage;
Region region;
LoadDefaultLayoutAndRegion(out layout, out masterPage, out region);
if (masterPage != null)
{
var level = accessControlService.GetAccessLevel(masterPage, principal);
if (level < AccessLevel.Read)
{
var message = BlogGlobalization.SaveBlogPost_FailedToSave_InaccessibleMasterPage;
const string logMessage = "Failed to save blog post. Selected master page for page layout is inaccessible.";
throw new ValidationException(() => message, logMessage);
}
}
if (pageContent.Region == null)
{
pageContent.Region = region;
}
// Load master pages for updating page's master path and page's children master path
IList<Guid> newMasterIds;
IList<Guid> oldMasterIds;
IList<Guid> childrenPageIds;
IList<MasterPage> existingChildrenMasterPages;
PrepareForUpdateChildrenMasterPages(isNew, blogPost, request, out newMasterIds, out oldMasterIds, out childrenPageIds, out existingChildrenMasterPages);
// TODO: TEST AND TRY TO FIX IT: TRANSACTION HERE IS REQUIRED!
// UnitOfWork.BeginTransaction(); // NOTE: this causes concurrent data exception.
Redirect redirectCreated = null;
if (!isNew && userCanEdit && !string.Equals(blogPost.PageUrl, request.BlogUrl) && !string.IsNullOrWhiteSpace(request.BlogUrl))
{
request.BlogUrl = urlService.FixUrl(request.BlogUrl);
pageService.ValidatePageUrl(request.BlogUrl, request.Id);
if (request.RedirectFromOldUrl)
{
var redirect = redirectService.CreateRedirectEntity(blogPost.PageUrl, request.BlogUrl);
if (redirect != null)
{
repository.Save(redirect);
redirectCreated = redirect;
}
}
blogPost.PageUrl = urlService.FixUrl(request.BlogUrl);
}
// Push to change modified data each time.
blogPost.ModifiedOn = DateTime.Now;
if (userCanEdit)
{
blogPost.Title = request.Title;
blogPost.Description = request.IntroText;
blogPost.Author = request.AuthorId.HasValue ? repository.AsProxy<Author>(request.AuthorId.Value) : null;
blogPost.Category = request.CategoryId.HasValue ? repository.AsProxy<Category>(request.CategoryId.Value) : null;
blogPost.Image = (request.Image != null && request.Image.ImageId.HasValue) ? repository.AsProxy<MediaImage>(request.Image.ImageId.Value) : null;
if (isNew || request.DesirableStatus == ContentStatus.Published)
{
blogPost.ActivationDate = request.LiveFromDate;
blogPost.ExpirationDate = TimeHelper.FormatEndDate(request.LiveToDate);
}
}
if (isNew)
{
if (!string.IsNullOrWhiteSpace(request.BlogUrl))
{
blogPost.PageUrl = urlService.FixUrl(request.BlogUrl);
pageService.ValidatePageUrl(blogPost.PageUrl);
}
else
{
blogPost.PageUrl = CreateBlogPermalink(request.Title, null, blogPost.Category != null ? (Guid?)blogPost.Category.Id : null);
}
blogPost.MetaTitle = request.MetaTitle ?? request.Title;
if (masterPage != null)
{
blogPost.MasterPage = masterPage;
masterPageService.SetPageMasterPages(blogPost, masterPage.Id);
}
else
{
blogPost.Layout = layout;
}
UpdateStatus(blogPost, request.DesirableStatus);
AddDefaultAccessRules(blogPost, principal, masterPage);
}
else if (request.DesirableStatus == ContentStatus.Published
|| blogPost.Status == PageStatus.Preview)
{
// Update only if publishing or current status is preview.
// Else do not change, because it may change from published to draft status
UpdateStatus(blogPost, request.DesirableStatus);
}
// Create content.
var newContent = new BlogPostContent
{
Id = content != null ? content.Id : Guid.Empty,
Name = request.Title,
Html = request.Content ?? string.Empty,
EditInSourceMode = request.EditInSourceMode,
ActivationDate = request.LiveFromDate,
ExpirationDate = TimeHelper.FormatEndDate(request.LiveToDate)
};
// Preserve content if user is not authorized to change it.
if (!userCanEdit)
{
if (content == null)
{
throw new SecurityException("Forbidden: Access is denied."); // User has no rights to create new content.
}
var contentToPublish = (BlogPostContent)(content.History != null
? content.History.FirstOrDefault(c => c.Status == ContentStatus.Draft) ?? content
: content);
newContent.Name = contentToPublish.Name;
newContent.Html = contentToPublish.Html;
}
content = SaveContentWithStatusUpdate(isNew, newContent, request, principal);
pageContent.Content = content;
optionService.SaveChildContentOptions(content, childContentOptionValues, request.DesirableStatus);
blogPost.PageUrlHash = blogPost.PageUrl.UrlHash();
blogPost.UseCanonicalUrl = request.UseCanonicalUrl;
MapExtraProperties(isNew, blogPost, content, pageContent, request, principal);
// Notify about page properties changing.
var cancelEventArgs = Events.BlogEvents.Instance.OnBlogChanging(beforeChange, new UpdatingBlogModel(blogPost));
if (cancelEventArgs.Cancel)
{
errorMessages = cancelEventArgs.CancellationErrorMessages.ToArray();
return null;
}
repository.Save(blogPost);
repository.Save(content);
repository.Save(pageContent);
masterPageService.UpdateChildrenMasterPages(existingChildrenMasterPages, oldMasterIds, newMasterIds, childrenPageIds);
pageContent.Content = content;
blogPost.PageContents = new [] {pageContent};
IList<Tag> newTags = null;
if (userCanEdit)
{
newTags = SaveTags(blogPost, request);
}
// Commit
unitOfWork.Commit();
// Notify about new created tags.
Events.RootEvents.Instance.OnTagCreated(newTags);
// Notify about new or updated blog post.
if (isNew)
{
Events.BlogEvents.Instance.OnBlogCreated(blogPost);
}
else
{
Events.BlogEvents.Instance.OnBlogUpdated(blogPost);
}
// Notify about redirect creation.
if (redirectCreated != null)
{
Events.PageEvents.Instance.OnRedirectCreated(redirectCreated);
}
return blogPost;
}
/// <summary>
/// Initializes a new instance of the <see cref="BlogChangingEventArgs" /> class.
/// </summary>
/// <param name="beforeUpdate">The old page.</param>
/// <param name="afterUpdate">The new page.</param>
public BlogChangingEventArgs(UpdatingBlogModel beforeUpdate, UpdatingBlogModel afterUpdate)
{
BeforeUpdate = beforeUpdate;
AfterUpdate = afterUpdate;
CancellationErrorMessages = new List<string>();
}