From c6904c0d3766a2ea8a81ab025c127169ecb51373 Mon Sep 17 00:00:00 2001 From: ThibG Date: Sun, 21 Jun 2020 12:41:38 +0200 Subject: [PATCH] Fix unique username constraint for local users not being enforced in database (#14099) This should not be an issue in practice because of the Rails-level uniqueness check, but local accounts having a NULL domain means the uniqueness constraint did not apply to them (since no two NULL values are considered equal). --- ...64023_add_fixed_lowercase_index_to_accounts.rb | 15 +++++++++++++++ db/schema.rb | 4 ++-- 2 files changed, 17 insertions(+), 2 deletions(-) create mode 100644 db/migrate/20200620164023_add_fixed_lowercase_index_to_accounts.rb diff --git a/db/migrate/20200620164023_add_fixed_lowercase_index_to_accounts.rb b/db/migrate/20200620164023_add_fixed_lowercase_index_to_accounts.rb new file mode 100644 index 000000000..c5688681f --- /dev/null +++ b/db/migrate/20200620164023_add_fixed_lowercase_index_to_accounts.rb @@ -0,0 +1,15 @@ +class AddFixedLowercaseIndexToAccounts < ActiveRecord::Migration[5.2] + disable_ddl_transaction! + + def up + rename_index :accounts, 'index_accounts_on_username_and_domain_lower', 'old_index_accounts_on_username_and_domain_lower' unless index_name_exists?(:accounts, 'old_index_accounts_on_username_and_domain_lower') + add_index :accounts, "lower (username), COALESCE(lower(domain), '')", name: 'index_accounts_on_username_and_domain_lower', unique: true, algorithm: :concurrently + remove_index :accounts, name: 'old_index_accounts_on_username_and_domain_lower' + end + + def down + add_index :accounts, 'lower (username), lower(domain)', name: 'old_index_accounts_on_username_and_domain_lower', unique: true, algorithm: :concurrently + remove_index :accounts, name: 'index_accounts_on_username_and_domain_lower' + rename_index :accounts, 'old_index_accounts_on_username_and_domain_lower', 'index_accounts_on_username_and_domain_lower' + end +end diff --git a/db/schema.rb b/db/schema.rb index df5d48f44..acc4ffb1a 100644 --- a/db/schema.rb +++ b/db/schema.rb @@ -10,7 +10,7 @@ # # It's strongly recommended that you check this file into your version control system. -ActiveRecord::Schema.define(version: 2020_06_08_113046) do +ActiveRecord::Schema.define(version: 2020_06_20_164023) do # These are extensions that must be enabled in order to support this database enable_extension "plpgsql" @@ -176,7 +176,7 @@ ActiveRecord::Schema.define(version: 2020_06_08_113046) do t.integer "header_storage_schema_version" t.string "devices_url" t.index "(((setweight(to_tsvector('simple'::regconfig, (display_name)::text), 'A'::\"char\") || setweight(to_tsvector('simple'::regconfig, (username)::text), 'B'::\"char\")) || setweight(to_tsvector('simple'::regconfig, (COALESCE(domain, ''::character varying))::text), 'C'::\"char\")))", name: "search_index", using: :gin - t.index "lower((username)::text), lower((domain)::text)", name: "index_accounts_on_username_and_domain_lower", unique: true + t.index "lower((username)::text), COALESCE(lower((domain)::text), ''::text)", name: "index_accounts_on_username_and_domain_lower", unique: true t.index ["moved_to_account_id"], name: "index_accounts_on_moved_to_account_id" t.index ["uri"], name: "index_accounts_on_uri" t.index ["url"], name: "index_accounts_on_url"