From 7e414fb4a09e6d35fa32d48fdba38a537ffe1d23 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Mon, 31 Aug 2020 22:39:18 +0800
Subject: Post info now contain data etag.

---
 Timeline/Models/Http/Timeline.cs | 7 ++++++-
 Timeline/Models/Timeline.cs      | 4 ++++
 2 files changed, 10 insertions(+), 1 deletion(-)

(limited to 'Timeline/Models')

diff --git a/Timeline/Models/Http/Timeline.cs b/Timeline/Models/Http/Timeline.cs
index 3596af18..a81b33f5 100644
--- a/Timeline/Models/Http/Timeline.cs
+++ b/Timeline/Models/Http/Timeline.cs
@@ -25,6 +25,10 @@ namespace Timeline.Models.Http
         /// If post is of image type. This is the image url.
         /// </summary>
         public string? Url { get; set; }
+        /// <summary>
+        /// If post has data (currently it means it's a image post), this is the data etag.
+        /// </summary>
+        public string? ETag { get; set; }
     }
 
     /// <summary>
@@ -192,7 +196,8 @@ namespace Timeline.Models.Http
                     Url = urlHelper.ActionLink(
                         action: nameof(TimelineController.PostDataGet),
                         controller: nameof(TimelineController)[0..^nameof(Controller).Length],
-                        values: new { Name = source.TimelineName, Id = source.Id })
+                        values: new { Name = source.TimelineName, Id = source.Id }),
+                    ETag = $"\"{imageContent.DataTag}\""
                 };
             }
             else
diff --git a/Timeline/Models/Timeline.cs b/Timeline/Models/Timeline.cs
index 42906053..a5987577 100644
--- a/Timeline/Models/Timeline.cs
+++ b/Timeline/Models/Timeline.cs
@@ -43,6 +43,10 @@ namespace Timeline.Models
         public ImageTimelinePostContent(string dataTag) { DataTag = dataTag; }
 
         public string Type { get; } = TimelinePostContentTypes.Image;
+
+        /// <summary>
+        /// The tag of the data. The tag of the entry in DataManager. Also the etag (not quoted).
+        /// </summary>
         public string DataTag { get; set; }
     }
 
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