When updating cases, update existing case embed in case log channel if possible

backend/src/migrations/1597015567215-AddLogMessageIdToCases.ts

@@ -0,0 +1,21 @@
+import { MigrationInterface, QueryRunner } from "typeorm";
+import { TableColumn } from "typeorm/index";
+
+export class AddLogMessageIdToCases1597015567215 implements MigrationInterface {
+  public async up(queryRunner: QueryRunner): Promise<any> {
+    await queryRunner.addColumn(
+      "cases",
+      new TableColumn({
+        name: "log_message_id",
+        type: "varchar",
+        length: "64",
+        isNullable: true,
+        default: null,
+      }),
+    );
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<any> {
+    await queryRunner.dropColumn("cases", "log_message_id");
+  }
+}