Entity for wall post
Inheritance: BaseEntity
        /// <summary>
        /// Creates a new wall post
        /// </summary>
        /// <param name="web">The current web</param>
        /// <param name="newEntity">The new wall post entity</param>
        public void Create(SPWeb web, WallPost newEntity)
        {
            // Use SPWebContext so that the repo can be used by code called from outside a web request context (e.g. Powershell or OWSTimer)
            var list = web.GetList(SPUtility.ConcatUrls(web.ServerRelativeUrl, ListUrls.WallPosts));

            var newListItem = list.AddItem();
            this._binder.FromEntity(newEntity, newListItem);

            newListItem.Update();
        }
        /// <summary>
        /// Creates a new post on the wall
        /// </summary>
        /// <param name="message">Text content of the post</param>
        /// <returns>The new WallPost object, null if something went wrong</returns>
        public WallPost AddPost(string message)
        {
            WallPost newPost = null;
            if (!string.IsNullOrEmpty(message))
            {
                newPost = new WallPost();
                newPost.Title = message.Length >= 255 ? message.Substring(0, 255) : message;
                newPost.Text = message;
                newPost.Author = new UserValue(SPContext.Current.Web.CurrentUser.ID);

                // Auto-tagging
                this.AddTags(message, newPost.Tags);

                this._wallPostRepository.Create(SPContext.Current.Web, newPost);
            }

            return newPost;
        }