From 41210c20cd6fef83530adbdaf5fb97e9f929ab6c Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sat, 13 Jun 2020 23:50:09 +0800
Subject: feat(back): Add database migration to add unique id for timeline.

---
 .../20200613135613_AddTimelineUniqueId.cs          | 39 ++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 Timeline/Migrations/20200613135613_AddTimelineUniqueId.cs

(limited to 'Timeline/Migrations/20200613135613_AddTimelineUniqueId.cs')

diff --git a/Timeline/Migrations/20200613135613_AddTimelineUniqueId.cs b/Timeline/Migrations/20200613135613_AddTimelineUniqueId.cs
new file mode 100644
index 00000000..fdca85b2
--- /dev/null
+++ b/Timeline/Migrations/20200613135613_AddTimelineUniqueId.cs
@@ -0,0 +1,39 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+namespace Timeline.Migrations
+{
+    public partial class AddTimelineUniqueId : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.Sql(
+@"
+ALTER TABLE timelines RENAME TO timelines_backup;
+
+CREATE TABLE timelines (
+    id INTEGER NOT NULL CONSTRAINT PK_timelines PRIMARY KEY AUTOINCREMENT,
+	unique_id TEXT NOT NULL DEFAULT (timeline_create_guid()),
+    name TEXT NULL,
+    description TEXT NULL,
+    owner INTEGER NOT NULL,
+    visibility INTEGER NOT NULL,
+    create_time TEXT NOT NULL, current_post_local_id INTEGER NOT NULL DEFAULT 0,
+    CONSTRAINT FK_timelines_users_owner FOREIGN KEY (owner) REFERENCES users (id) ON DELETE CASCADE
+);
+
+INSERT INTO timelines (id, name, description, owner, visibility, create_time)
+	SELECT id, name, description, owner, visibility, create_time FROM timelines_backup;
+
+DROP TABLE timelines_backup;
+"
+            );
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "unique_id",
+                table: "timelines");
+        }
+    }
+}
-- 
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