From 28beebce824b84b166b25a64031b8c59cdcbac32 Mon Sep 17 00:00:00 2001
From: Daniel Bachler <daniel@danielbachler.de>
Date: Wed, 29 Nov 2023 21:14:56 +0100
Subject: [PATCH] :hammer: fix posts_links FK constraint, add reusable block
 tombstones

---
 ...1658-FixPostLinksForeingKeyDeleteClause.ts | 22 +++++++++++++++++++
 db/syncPostsToGrapher.ts                      |  5 ++++-
 2 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 db/migration/1701280181658-FixPostLinksForeingKeyDeleteClause.ts

diff --git a/db/migration/1701280181658-FixPostLinksForeingKeyDeleteClause.ts b/db/migration/1701280181658-FixPostLinksForeingKeyDeleteClause.ts
new file mode 100644
index 00000000000..59785a8dd72
--- /dev/null
+++ b/db/migration/1701280181658-FixPostLinksForeingKeyDeleteClause.ts
@@ -0,0 +1,22 @@
+import { MigrationInterface, QueryRunner } from "typeorm"
+
+export class FixPostLinksForeingKeyDeleteClause1701280181658
+    implements MigrationInterface
+{
+    public async up(queryRunner: QueryRunner): Promise<void> {
+        await queryRunner.query(`
+            ALTER TABLE posts_links
+            DROP FOREIGN KEY posts_links_ibfk_1;
+        `)
+        await queryRunner.query(`
+            ALTER TABLE posts_links
+            ADD CONSTRAINT posts_links_ibfk_1
+            FOREIGN KEY (sourceId)
+            REFERENCES posts(id)
+            ON UPDATE CASCADE
+            ON DELETE CASCADE;
+        `)
+    }
+
+    public async down(queryRunner: QueryRunner): Promise<void> {}
+}
diff --git a/db/syncPostsToGrapher.ts b/db/syncPostsToGrapher.ts
index 7c8ad2c4b7c..41858cbed75 100644
--- a/db/syncPostsToGrapher.ts
+++ b/db/syncPostsToGrapher.ts
@@ -53,7 +53,10 @@ function buildReplacerFunction(
         matches: Record<string, string>
     ) => {
         const block = blocks[matches["id"].toString()]
-        return block ? block.post_content : ""
+        return block
+            ? `<!-- wp-block-tombstone ${matches["id"]} -->` +
+                  block.post_content
+            : ""
     }
 }