Feat: Fixed db migration issues from v3.2.0 to 3.3.0

charmcraft.yaml

@@ -12,5 +12,6 @@ bases:
       channel: "20.04"
 parts:
   charm:
+    build-packages: [cargo, rustc, pkg-config, libffi-dev, libssl-dev]
     charm-python-packages: [setuptools, pip]  # https://discourse.charmhub.io/t/install-or-update-python-packages-before-packing-a-charm/5158
     charm-binary-python-packages: [cosl]  # https://github.com/canonical/charmcraft/issues/1269

discourse_rock/patches/db_migrations.patch

@@ -0,0 +1,17 @@
+diff --git a/db/post_migrate/20240212034010_drop_deprecated_columns.rb b/db/post_migrate/20240212034010_drop_deprecated_columns.rb
+index 0899da20..586643ba 100644
+--- a/db/post_migrate/20240212034010_drop_deprecated_columns.rb
++++ b/db/post_migrate/20240212034010_drop_deprecated_columns.rb
+@@ -19,6 +19,13 @@ class DropDeprecatedColumns < ActiveRecord::Migration[7.0]
+   }
+
+   def up
++    execute <<~SQL
++    DROP TRIGGER IF EXISTS invites_user_id_readonly ON invites;
++
++    DROP TRIGGER IF EXISTS invites_redeemed_at_readonly ON invites;
++
++    DROP TRIGGER IF EXISTS user_api_keys_scopes_readonly ON user_api_keys;
++  SQL
+     DROPPED_COLUMNS.each { |table, columns| Migration::ColumnDropper.execute_drop(table, columns) }
+   end

discourse_rock/rockcraft.yaml

@@ -192,6 +192,7 @@ parts:
       - git
     after: [discourse, patches]
     override-stage: |
+      git -C srv/discourse/app apply patches/db_migrations.patch
       git -C srv/discourse/app apply patches/lp1903695.patch
       git -C srv/discourse/app apply patches/discourse-charm.patch
       git -C srv/discourse/app apply patches/sigterm.patch