Fix null values being included in some indexes (#17711)

* Fix null values being included in some indexes

* Update lib/mastodon/migration_helpers.rb

Co-authored-by: Claire <claire.github-309c@sitedethib.com>

* Add documentation link to corruption error message

Co-authored-by: Claire <claire.github-309c@sitedethib.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/db/migrate/20200620164023_add_fixed_lowercase_index_to_accounts.rb b/db/migrate/20200620164023_add_fixed_lowercase_index_to_accounts.rb
index 366bf9aa7..652ce9752 100644
--- a/db/migrate/20200620164023_add_fixed_lowercase_index_to_accounts.rb
+++ b/db/migrate/20200620164023_add_fixed_lowercase_index_to_accounts.rb
@@ -16,7 +16,7 @@ class AddFixedLowercaseIndexToAccounts < ActiveRecord::Migration[5.2]
       add_index :accounts, "lower (username), COALESCE(lower(domain), '')", name: 'index_accounts_on_username_and_domain_lower', unique: true, algorithm: :concurrently
     rescue ActiveRecord::RecordNotUnique
       remove_index :accounts, name: 'index_accounts_on_username_and_domain_lower'
-      raise CorruptionError
+      raise CorruptionError.new('index_accounts_on_username_and_domain_lower')
     end
 
     remove_index :accounts, name: 'old_index_accounts_on_username_and_domain_lower' if index_name_exists?(:accounts, 'old_index_accounts_on_username_and_domain_lower')
diff --git a/db/migrate/20210421121431_add_case_insensitive_btree_index_to_tags.rb b/db/migrate/20210421121431_add_case_insensitive_btree_index_to_tags.rb
index e492c9e86..b3ee11d09 100644
--- a/db/migrate/20210421121431_add_case_insensitive_btree_index_to_tags.rb
+++ b/db/migrate/20210421121431_add_case_insensitive_btree_index_to_tags.rb
@@ -10,7 +10,7 @@ class AddCaseInsensitiveBtreeIndexToTags < ActiveRecord::Migration[5.2]
       safety_assured { execute 'CREATE UNIQUE INDEX CONCURRENTLY index_tags_on_name_lower_btree ON tags (lower(name) text_pattern_ops)' }
     rescue ActiveRecord::StatementInvalid => e
       remove_index :tags, name: 'index_tags_on_name_lower_btree'
-      raise CorruptionError if e.is_a?(ActiveRecord::RecordNotUnique)
+      raise CorruptionError.new('index_tags_on_name_lower_btree') if e.is_a?(ActiveRecord::RecordNotUnique)
       raise e
     end