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Diffstat (limited to 'lib/mastodon/maintenance_cli.rb')
| -rw-r--r-- | lib/mastodon/maintenance_cli.rb | 610 |
1 files changed, 610 insertions, 0 deletions
diff --git a/lib/mastodon/maintenance_cli.rb b/lib/mastodon/maintenance_cli.rb new file mode 100644 index 000000000..191a3b03f --- /dev/null +++ b/lib/mastodon/maintenance_cli.rb @@ -0,0 +1,610 @@ +# frozen_string_literal: true + +require 'tty-prompt' +require_relative '../../config/boot' +require_relative '../../config/environment' +require_relative 'cli_helper' + +module Mastodon + class MaintenanceCLI < Thor + include CLIHelper + + def self.exit_on_failure? + true + end + + MIN_SUPPORTED_VERSION = 2019_10_01_213028 + MAX_SUPPORTED_VERSION = 2020_10_17_234926 + + # Stubs to enjoy ActiveRecord queries while not depending on a particular + # version of the code/database + + class Status < ApplicationRecord; end + class StatusPin < ApplicationRecord; end + class Poll < ApplicationRecord; end + class Report < ApplicationRecord; end + class Tombstone < ApplicationRecord; end + class Favourite < ApplicationRecord; end + class Follow < ApplicationRecord; end + class FollowRequest < ApplicationRecord; end + class Block < ApplicationRecord; end + class Mute < ApplicationRecord; end + class AccountIdentityProof < ApplicationRecord; end + class AccountModerationNote < ApplicationRecord; end + class AccountPin < ApplicationRecord; end + class ListAccount < ApplicationRecord; end + class PollVote < ApplicationRecord; end + class Mention < ApplicationRecord; end + class AccountDomainBlock < ApplicationRecord; end + class AnnouncementReaction < ApplicationRecord; end + class FeaturedTag < ApplicationRecord; end + class CustomEmoji < ApplicationRecord; end + class CustomEmojiCategory < ApplicationRecord; end + class Bookmark < ApplicationRecord; end + class WebauthnCredential < ApplicationRecord; end + + class PreviewCard < ApplicationRecord + self.inheritance_column = false + end + + class MediaAttachment < ApplicationRecord + self.inheritance_column = nil + end + + class AccountStat < ApplicationRecord + belongs_to :account, inverse_of: :account_stat + end + + class Account < ApplicationRecord + # Dummy class, to make migration possible across version changes + has_one :user, inverse_of: :account + has_one :account_stat, inverse_of: :account + + scope :local, -> { where(domain: nil) } + + def local? + domain.nil? + end + + def acct + local? ? username : "#{username}@#{domain}" + end + end + + class User < ApplicationRecord + belongs_to :account, inverse_of: :user + end + + desc 'fix-duplicates', 'Fix duplicates in database and rebuild indexes' + long_desc <<~LONG_DESC + Delete or merge duplicate accounts, statuses, emojis, etc. and rebuild indexes. + + This is useful if your database indexes are corrupted because of issues such as https://wiki.postgresql.org/wiki/Locale_data_changes + + Mastodon has to be stopped to run this task, which will take a long time and may be destructive. + LONG_DESC + def fix_duplicates + @prompt = TTY::Prompt.new + + if ActiveRecord::Migrator.current_version < MIN_SUPPORTED_VERSION + @prompt.warn 'Your version of the database schema is too old and is not supported by this script.' + @prompt.warn 'Please update to at least Mastodon 3.0.0 before running this script.' + exit(1) + elsif ActiveRecord::Migrator.current_version > MAX_SUPPORTED_VERSION + @prompt.warn 'Your version of the database schema is more recent than this script, this may cause unexpected errors.' + exit(1) unless @prompt.yes?('Continue anyway?') + end + + @prompt.warn 'This task will take a long time to run and is potentially destructive.' + @prompt.warn 'Please make sure to stop Mastodon and have a backup.' + exit(1) unless @prompt.yes?('Continue?') + + deduplicate_accounts! + deduplicate_users! + deduplicate_account_domain_blocks! + deduplicate_account_identity_proofs! + deduplicate_announcement_reactions! + deduplicate_conversations! + deduplicate_custom_emojis! + deduplicate_custom_emoji_categories! + deduplicate_domain_allows! + deduplicate_domain_blocks! + deduplicate_unavailable_domains! + deduplicate_email_domain_blocks! + deduplicate_media_attachments! + deduplicate_preview_cards! + deduplicate_statuses! + deduplicate_tags! + deduplicate_webauthn_credentials! + + Rails.cache.clear + + @prompt.say 'Finished!' + end + + private + + def deduplicate_accounts! + remove_index_if_exists!(:accounts, 'index_accounts_on_username_and_domain_lower') + + @prompt.say 'Deduplicating accounts… for local accounts, you will be asked to chose which account to keep unchanged.' + + find_duplicate_accounts.each do |row| + accounts = Account.where(id: row['ids'].split(',')).to_a + + if accounts.first.local? + deduplicate_local_accounts!(accounts) + else + deduplicate_remote_accounts!(accounts) + end + end + + @prompt.say 'Restoring index_accounts_on_username_and_domain_lower…' + if ActiveRecord::Migrator.current_version < 20200620164023 + ActiveRecord::Base.connection.add_index :accounts, 'lower (username), lower(domain)', name: 'index_accounts_on_username_and_domain_lower', unique: true + else + ActiveRecord::Base.connection.add_index :accounts, "lower (username), COALESCE(lower(domain), '')", name: 'index_accounts_on_username_and_domain_lower', unique: true + end + end + + def deduplicate_users! + remove_index_if_exists!(:users, 'index_users_on_confirmation_token') + remove_index_if_exists!(:users, 'index_users_on_email') + remove_index_if_exists!(:users, 'index_users_on_remember_token') + remove_index_if_exists!(:users, 'index_users_on_reset_password_token') + + @prompt.say 'Deduplicating user records…' + + # Deduplicating email + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM users GROUP BY email HAVING count(*) > 1").each do |row| + users = User.where(id: row['ids'].split(',')).sort_by(&:updated_at).reverse + ref_user = users.shift + @prompt.warn "Multiple users registered with e-mail address #{ref_user.email}." + @prompt.warn "e-mail will be disabled for the following accounts: #{user.map(&:account).map(&:acct).join(', ')}" + @prompt.warn 'Please reach out to them and set another address with `tootctl account modify` or delete them.' + + i = 0 + users.each do |user| + user.update!(email: "#{i} " + user.email) + end + end + + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM users WHERE confirmation_token IS NOT NULL GROUP BY confirmation_token HAVING count(*) > 1").each do |row| + users = User.where(id: row['ids'].split(',')).sort_by(&:created_at).reverse.drop(1) + @prompt.warn "Unsetting confirmation token for those accounts: #{users.map(&:account).map(&:acct).join(', ')}" + + users.each do |user| + user.update!(confirmation_token: nil) + end + end + + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM users WHERE remember_token IS NOT NULL GROUP BY remember_token HAVING count(*) > 1").each do |row| + users = User.where(id: row['ids'].split(',')).sort_by(&:updated_at).reverse.drop(1) + @prompt.warn "Unsetting remember token for those accounts: #{users.map(&:account).map(&:acct).join(', ')}" + + users.each do |user| + user.update!(remember_token: nil) + end + end + + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM users WHERE reset_password_token IS NOT NULL GROUP BY reset_password_token HAVING count(*) > 1").each do |row| + users = User.where(id: row['ids'].split(',')).sort_by(&:updated_at).reverse.drop(1) + @prompt.warn "Unsetting password reset token for those accounts: #{users.map(&:account).map(&:acct).join(', ')}" + + users.each do |user| + user.update!(reset_password_token: nil) + end + end + + @prompt.say 'Restoring users indexes…' + ActiveRecord::Base.connection.add_index :users, ['confirmation_token'], name: 'index_users_on_confirmation_token', unique: true + ActiveRecord::Base.connection.add_index :users, ['email'], name: 'index_users_on_email', unique: true + ActiveRecord::Base.connection.add_index :users, ['remember_token'], name: 'index_users_on_remember_token', unique: true + ActiveRecord::Base.connection.add_index :users, ['reset_password_token'], name: 'index_users_on_reset_password_token', unique: true + end + + def deduplicate_account_domain_blocks! + remove_index_if_exists!(:account_domain_blocks, 'index_account_domain_blocks_on_account_id_and_domain') + + @prompt.say 'Removing duplicate account domain blocks…' + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM account_domain_blocks GROUP BY account_id, domain HAVING count(*) > 1").each do |row| + AccountDomainBlock.where(id: row['ids'].split(',').drop(1)).delete_all + end + + @prompt.say 'Restoring account domain blocks indexes…' + ActiveRecord::Base.connection.add_index :account_domain_blocks, ['account_id', 'domain'], name: 'index_account_domain_blocks_on_account_id_and_domain', unique: true + end + + def deduplicate_account_identity_proofs! + remove_index_if_exists!(:account_identity_proofs, 'index_account_proofs_on_account_and_provider_and_username') + + @prompt.say 'Removing duplicate account identity proofs…' + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM account_identity_proofs GROUP BY account_id, provider, provider_username HAVING count(*) > 1").each do |row| + AccountIdentityProof.where(id: row['ids'].split(',')).sort_by(&:id).reverse.drop(1).each(&:destroy) + end + + @prompt.say 'Restoring account identity proofs indexes…' + ActiveRecord::Base.connection.add_index :account_identity_proofs, ['account_id', 'provider', 'provider_username'], name: 'index_account_proofs_on_account_and_provider_and_username', unique: true + end + + def deduplicate_announcement_reactions! + return unless ActiveRecord::Base.connection.table_exists?(:announcement_reactions) + + remove_index_if_exists!(:announcement_reactions, 'index_announcement_reactions_on_account_id_and_announcement_id') + + @prompt.say 'Removing duplicate account identity proofs…' + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM announcement_reactions GROUP BY account_id, announcement_id, name HAVING count(*) > 1").each do |row| + AnnouncementReaction.where(id: row['ids'].split(',')).sort_by(&:id).reverse.drop(1).each(&:destroy) + end + + @prompt.say 'Restoring announcement_reactions indexes…' + ActiveRecord::Base.connection.add_index :announcement_reactions, ['account_id', 'announcement_id', 'name'], name: 'index_announcement_reactions_on_account_id_and_announcement_id', unique: true + end + + def deduplicate_conversations! + remove_index_if_exists!(:conversations, 'index_conversations_on_uri') + + @prompt.say 'Deduplicating conversations…' + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM conversations WHERE uri IS NOT NULL GROUP BY uri HAVING count(*) > 1").each do |row| + conversations = Conversation.where(id: row['ids'].split(',')).sort_by(&:id).reverse + + ref_conversation = conversations.shift + + conversations.each do |other| + merge_conversations!(ref_conversation, other) + other.destroy + end + end + + @prompt.say 'Restoring conversations indexes…' + ActiveRecord::Base.connection.add_index :conversations, ['uri'], name: 'index_conversations_on_uri', unique: true + end + + def deduplicate_custom_emojis! + remove_index_if_exists!(:custom_emojis, 'index_custom_emojis_on_shortcode_and_domain') + + @prompt.say 'Deduplicating custom_emojis…' + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM custom_emojis GROUP BY shortcode, domain HAVING count(*) > 1").each do |row| + emojis = CustomEmoji.where(id: row['ids'].split(',')).sort_by(&:id).reverse + + ref_emoji = emojis.shift + + emojis.each do |other| + merge_custom_emojis!(ref_emoji, other) + other.destroy + end + end + + @prompt.say 'Restoring custom_emojis indexes…' + ActiveRecord::Base.connection.add_index :custom_emojis, ['shortcode', 'domain'], name: 'index_custom_emojis_on_shortcode_and_domain', unique: true + end + + def deduplicate_custom_emoji_categories! + remove_index_if_exists!(:custom_emoji_categories, 'index_custom_emoji_categories_on_name') + + @prompt.say 'Deduplicating custom_emoji_categories…' + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM custom_emoji_categories GROUP BY name HAVING count(*) > 1").each do |row| + categories = CustomEmojiCategory.where(id: row['ids'].split(',')).sort_by(&:id).reverse + + ref_category = categories.shift + + categories.each do |other| + merge_custom_emoji_categories!(ref_category, other) + other.destroy + end + end + + @prompt.say 'Restoring custom_emoji_categories indexes…' + ActiveRecord::Base.connection.add_index :custom_emoji_categories, ['name'], name: 'index_custom_emoji_categories_on_name', unique: true + end + + def deduplicate_domain_allows! + remove_index_if_exists!(:domain_allows, 'index_domain_allows_on_domain') + + @prompt.say 'Deduplicating domain_allows…' + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM domain_allows GROUP BY domain HAVING count(*) > 1").each do |row| + DomainAllow.where(id: row['ids'].split(',')).sort_by(&:id).reverse.drop(1).each(&:destroy) + end + + @prompt.say 'Restoring domain_allows indexes…' + ActiveRecord::Base.connection.add_index :domain_allows, ['domain'], name: 'index_domain_allows_on_domain', unique: true + end + + def deduplicate_domain_blocks! + remove_index_if_exists!(:domain_blocks, 'index_domain_blocks_on_domain') + + @prompt.say 'Deduplicating domain_allows…' + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM domain_blocks GROUP BY domain HAVING count(*) > 1").each do |row| + domain_blocks = DomainBlock.where(id: row['ids'].split(',')).by_severity.reverse.to_a + + reject_media = domain_blocks.any?(&:reject_media?) + reject_reports = domain_blocks.any?(&:reject_reports?) + + reference_block = domain_blocks.shift + + private_comment = domain_blocks.reduce(reference_block.private_comment.presence) { |a, b| a || b.private_comment.presence } + public_comment = domain_blocks.reduce(reference_block.public_comment.presence) { |a, b| a || b.public_comment.presence } + + reference_block.update!(reject_media: reject_media, reject_reports: reject_reports, private_comment: private_comment, public_comment: public_comment) + + domain_blocks.each(&:destroy) + end + + @prompt.say 'Restoring domain_blocks indexes…' + ActiveRecord::Base.connection.add_index :domain_blocks, ['domain'], name: 'index_domain_blocks_on_domain', unique: true + end + + def deduplicate_unavailable_domains! + return unless ActiveRecord::Base.connection.table_exists?(:unavailable_domains) + + remove_index_if_exists!(:unavailable_domains, 'index_unavailable_domains_on_domain') + + @prompt.say 'Deduplicating unavailable_domains…' + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM unavailable_domains GROUP BY domain HAVING count(*) > 1").each do |row| + UnavailableDomain.where(id: row['ids'].split(',')).sort_by(&:id).reverse.drop(1).each(&:destroy) + end + + @prompt.say 'Restoring domain_allows indexes…' + ActiveRecord::Base.connection.add_index :unavailable_domains, ['domain'], name: 'index_unavailable_domains_on_domain', unique: true + end + + def deduplicate_email_domain_blocks! + remove_index_if_exists!(:email_domain_blocks, 'index_email_domain_blocks_on_domain') + + @prompt.say 'Deduplicating email_domain_blocks…' + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM email_domain_blocks GROUP BY domain HAVING count(*) > 1").each do |row| + domain_blocks = EmailDomainBlock.where(id: row['ids'].split(',')).sort_by { |b| b.parent.nil? ? 1 : 0 }.to_a + domain_blocks.drop(1).each(&:destroy) + end + + @prompt.say 'Restoring email_domain_blocks indexes…' + ActiveRecord::Base.connection.add_index :email_domain_blocks, ['domain'], name: 'index_email_domain_blocks_on_domain', unique: true + end + + def deduplicate_media_attachments! + remove_index_if_exists!(:media_attachments, 'index_media_attachments_on_shortcode') + + @prompt.say 'Deduplicating media_attachments…' + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM media_attachments WHERE shortcode IS NOT NULL GROUP BY shortcode HAVING count(*) > 1").each do |row| + MediaAttachment.where(id: row['ids'].split(',').drop(1)).update_all(shortcode: nil) + end + + @prompt.say 'Restoring media_attachments indexes…' + ActiveRecord::Base.connection.add_index :media_attachments, ['shortcode'], name: 'index_media_attachments_on_shortcode', unique: true + end + + def deduplicate_preview_cards! + remove_index_if_exists!(:preview_cards, 'index_preview_cards_on_url') + + @prompt.say 'Deduplicating preview_cards…' + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM preview_cards GROUP BY url HAVING count(*) > 1").each do |row| + PreviewCard.where(id: row['ids'].split(',')).sort_by(&:id).reverse.drop(1).each(&:destroy) + end + + @prompt.say 'Restoring preview_cards indexes…' + ActiveRecord::Base.connection.add_index :preview_cards, ['url'], name: 'index_preview_cards_on_url', unique: true + end + + def deduplicate_statuses! + remove_index_if_exists!(:statuses, 'index_statuses_on_uri') + + @prompt.say 'Deduplicating statuses…' + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM statuses WHERE uri IS NOT NULL GROUP BY uri HAVING count(*) > 1").each do |row| + statuses = Status.where(id: row['ids'].split(',')).sort_by(&:id) + ref_status = statuses.shift + statuses.each do |status| + merge_statuses!(ref_status, status) if status.account_id == ref_status.account_id + status.destroy + end + end + + @prompt.say 'Restoring statuses indexes…' + ActiveRecord::Base.connection.add_index :statuses, ['uri'], name: 'index_statuses_on_uri', unique: true + end + + def deduplicate_tags! + remove_index_if_exists!(:tags, 'index_tags_on_name_lower') + + @prompt.say 'Deduplicating tags…' + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM tags GROUP BY lower((name)::text) HAVING count(*) > 1").each do |row| + tags = Tag.where(id: row['ids'].split(',')).sort_by { |t| [t.usable?, t.trendable?, t.listable?].count(false) } + ref_tag = tags.shift + tags.each do |tag| + merge_tags!(ref_tag, tag) + tag.destroy + end + end + + @prompt.say 'Restoring tags indexes…' + ActiveRecord::Base.connection.add_index :tags, 'lower((name)::text)', name: 'index_tags_on_name_lower', unique: true + end + + def deduplicate_webauthn_credentials! + return unless ActiveRecord::Base.connection.table_exists?(:webauthn_credentials) + + remove_index_if_exists!(:webauthn_credentials, 'index_webauthn_credentials_on_external_id') + + @prompt.say 'Deduplicating webauthn_credentials…' + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM webauthn_credentials GROUP BY external_id HAVING count(*) > 1").each do |row| + WebauthnCredential.where(id: row['ids'].split(',')).sort_by(&:id).reverse.drop(1).each(&:destroy) + end + + @prompt.say 'Restoring webauthn_credentials indexes…' + ActiveRecord::Base.connection.add_index :webauthn_credentials, ['external_id'], name: 'index_webauthn_credentials_on_external_id', unique: true + end + + def deduplicate_local_accounts!(accounts) + accounts = accounts.sort_by(&:id).reverse + + @prompt.warn "Multiple local accounts were found for username '#{accounts.first.username}'." + @prompt.warn 'All those accounts are distinct accounts but only the most recently-created one is fully-functionnal.' + + accounts.each_with_index do |account, idx| + @prompt.say '%2d. %s: created at: %s; updated at: %s; last logged in at: %s; statuses: %5d; last status at: %s' % [idx, account.username, account.created_at, account.updated_at, account.user&.last_sign_in_at&.to_s || 'N/A', account.account_stat&.statuses_count || 0, account.account_stat&.last_status_at || 'N/A'] + end + + @prompt.say 'Please chose the one to keep unchanged, other ones will be automatically renamed.' + + ref_id = @prompt.ask('Account to keep unchanged:') do |q| + q.required true + q.default 0 + q.convert :int + end + + accounts.delete_at(ref_id) + + i = 0 + accounts.each do |account| + i += 1 + username = account.username + "_#{i}" + + while Account.local.exists?(username: username) + i += 1 + username = account.username + "_#{i}" + end + + account.update!(username: username) + end + end + + def deduplicate_remote_accounts!(accounts) + accounts = accounts.sort_by(&:updated_at).reverse + + reference_account = accounts.shift + + accounts.each do |other_account| + if other_account.public_key == reference_account.public_key + # The accounts definitely point to the same resource, so + # it's safe to re-attribute content and relationships + merge_accounts!(reference_account, other_account) + end + + other_account.destroy + end + end + + def merge_accounts!(main_account, duplicate_account) + # Since it's the same remote resource, the remote resource likely + # already believes we are following/blocking, so it's safe to + # re-attribute the relationships too. However, during the presence + # of the index bug users could have *also* followed the reference + # account already, therefore mass update will not work and we need + # to check for (and skip past) uniqueness errors + owned_classes = [ + Status, StatusPin, MediaAttachment, Poll, Report, Tombstone, Favourite, + Follow, FollowRequest, Block, Mute, AccountIdentityProof, + AccountModerationNote, AccountPin, AccountStat, ListAccount, + PollVote, Mention + ] + owned_classes.each do |klass| + klass.where(account_id: duplicate_account.id).find_each do |record| + begin + record.update_attribute(:account_id, main_account.id) + rescue ActiveRecord::RecordNotUnique + next + end + end + end + + target_classes = [Follow, FollowRequest, Block, Mute, AccountModerationNote, AccountPin] + target_classes.each do |klass| + klass.where(target_account_id: duplicate_account.id).find_each do |record| + begin + record.update_attribute(:target_account_id, main_account.id) + rescue ActiveRecord::RecordNotUnique + next + end + end + end + end + + def merge_conversations!(main_conv, duplicate_conv) + owned_classes = [ConversationMute, AccountConversation] + owned_classes.each do |klass| + klass.where(conversation_id: duplicate_conv.id).find_each do |record| + begin + record.update_attribute(:account_id, main_conv.id) + rescue ActiveRecord::RecordNotUnique + next + end + end + end + end + + def merge_custom_emojis!(main_emoji, duplicate_emoji) + owned_classes = [AnnouncementReaction] + owned_classes.each do |klass| + klass.where(custom_emoji_id: duplicate_emoji.id).update_all(custom_emoji_id: main_emoji.id) + end + end + + def merge_custom_emoji_categories!(main_category, duplicate_category) + owned_classes = [CustomEmoji] + owned_classes.each do |klass| + klass.where(category_id: duplicate_category.id).update_all(category_id: main_category.id) + end + end + + def merge_statuses!(main_status, duplicate_status) + owned_classes = [Favourite, Mention, Poll] + owned_classes << Bookmark if ActiveRecord::Base.connection.table_exists?(:bookmarks) + owned_classes.each do |klass| + klass.where(status_id: duplicate_status.id).find_each do |record| + begin + record.update_attribute(:status_id, main_status.id) + rescue ActiveRecord::RecordNotUnique + next + end + end + end + + StatusPin.where(account_id: main_status.account_id, status_id: duplicate_status.id).find_each do |record| + begin + record.update_attribute(:status_id, main_status.id) + rescue ActiveRecord::RecordNotUnique + next + end + end + + Status.where(in_reply_to_id: duplicate_status.id).find_each do |record| + begin + record.update_attribute(:in_reply_to_id, main_status.id) + rescue ActiveRecord::RecordNotUnique + next + end + end + + Status.where(reblog_of_id: duplicate_status.id).find_each do |record| + begin + record.update_attribute(:reblog_of_id, main_status.id) + rescue ActiveRecord::RecordNotUnique + next + end + end + end + + def merge_tags!(main_tag, duplicate_tag) + [FeaturedTag].each do |klass| + klass.where(tag_id: duplicate_tag.id).find_each do |record| + begin + record.update_attribute(:tag_id, main_tag.id) + rescue ActiveRecord::RecordNotUnique + next + end + end + end + end + + def find_duplicate_accounts + ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM accounts GROUP BY lower(username), COALESCE(lower(domain), '') HAVING count(*) > 1") + end + + def remove_index_if_exists!(table, name) + ActiveRecord::Base.connection.remove_index(table, name: name) + rescue ArgumentError + nil + rescue ActiveRecord::StatementInvalid + nil + end + end +end |