1 files changed, 33 insertions, 0 deletions
diff --git a/BackEnd/Timeline/Services/Exceptions/TimelinePostNotExistException.cs b/BackEnd/Timeline/Services/Exceptions/TimelinePostNotExistException.cs
new file mode 100644
index 00000000..f95dd410
--- /dev/null
+++ b/BackEnd/Timeline/Services/Exceptions/TimelinePostNotExistException.cs
@@ -0,0 +1,33 @@
+using System;
+using System.Globalization;
+
+namespace Timeline.Services.Exceptions
+{
+    [Serializable]
+    public class TimelinePostNotExistException : EntityNotExistException
+    {
+        public TimelinePostNotExistException() : this(null, null, false, null, null) { }
+        [Obsolete("This has no meaning.")]
+        public TimelinePostNotExistException(string? message) : this(message, null) { }
+        [Obsolete("This has no meaning.")]
+        public TimelinePostNotExistException(string? message, Exception? inner) : this(null, null, false, message, inner) { }
+        protected TimelinePostNotExistException(
+          System.Runtime.Serialization.SerializationInfo info,
+          System.Runtime.Serialization.StreamingContext context) : base(info, context) { }
+
+        public TimelinePostNotExistException(string? timelineName, long? id, bool isDelete, string? message = null, Exception? inner = null) : base(EntityNames.TimelinePost, null, MakeMessage(timelineName, id, isDelete).AppendAdditionalMessage(message), inner) { TimelineName = timelineName; Id = id; IsDelete = isDelete; }
+
+        private static string MakeMessage(string? timelineName, long? id, bool isDelete)
+        {
+            return string.Format(CultureInfo.InvariantCulture, isDelete ? Resources.Services.Exceptions.TimelinePostNotExistExceptionDeleted : Resources.Services.Exceptions.TimelinePostNotExistException, timelineName ?? "", id);
+        }
+
+        public string? TimelineName { get; set; }
+        public long? Id { get; set; }
+
+        /// <summary>
+        /// True if the post is deleted. False if the post does not exist at all.
+        /// </summary>
+        public bool IsDelete { get; set; }
+    }
+}