require_dependency 'email' require_dependency 'email_token' require_dependency 'trust_level' require_dependency 'pbkdf2' require_dependency 'discourse' require_dependency 'post_destroyer' require_dependency 'user_name_suggester' require_dependency 'pretty_text' require_dependency 'url_helper' require_dependency 'letter_avatar' require_dependency 'promotion' class User < ActiveRecord::Base include Roleable include HasCustomFields has_many :posts has_many :notifications, dependent: :destroy has_many :topic_users, dependent: :destroy has_many :topics has_many :user_open_ids, dependent: :destroy has_many :user_actions, dependent: :destroy has_many :post_actions, dependent: :destroy has_many :user_badges, -> {where('user_badges.badge_id IN (SELECT id FROM badges where enabled)')}, dependent: :destroy has_many :badges, through: :user_badges has_many :email_logs, dependent: :delete_all has_many :post_timings has_many :topic_allowed_users, dependent: :destroy has_many :topics_allowed, through: :topic_allowed_users, source: :topic has_many :email_tokens, dependent: :destroy has_many :views has_many :user_visits, dependent: :destroy has_many :invites, dependent: :destroy has_many :topic_links, dependent: :destroy has_many :uploads has_many :warnings has_one :user_avatar, dependent: :destroy has_one :facebook_user_info, dependent: :destroy has_one :twitter_user_info, dependent: :destroy has_one :github_user_info, dependent: :destroy has_one :google_user_info, dependent: :destroy has_one :oauth2_user_info, dependent: :destroy has_one :user_stat, dependent: :destroy has_one :user_profile, dependent: :destroy, inverse_of: :user has_one :single_sign_on_record, dependent: :destroy belongs_to :approved_by, class_name: 'User' belongs_to :primary_group, class_name: 'Group' has_many :group_users, dependent: :destroy has_many :groups, through: :group_users has_many :secure_categories, through: :groups, source: :categories has_many :group_managers, dependent: :destroy has_many :managed_groups, through: :group_managers, source: :group has_many :muted_user_records, class_name: 'MutedUser' has_many :muted_users, through: :muted_user_records has_one :user_search_data, dependent: :destroy has_one :api_key, dependent: :destroy belongs_to :uploaded_avatar, class_name: 'Upload' delegate :last_sent_email_address, :to => :email_logs before_validation :strip_downcase_email validates_presence_of :username validate :username_validator validates :email, presence: true, uniqueness: true validates :email, email: true, if: :email_changed? validate :password_validator validates :name, user_full_name: true, if: :name_changed? validates :ip_address, allowed_ip_address: {on: :create, message: :signup_not_allowed} after_initialize :add_trust_level after_initialize :set_default_email_digest after_initialize :set_default_external_links_in_new_tab after_create :create_email_token after_create :create_user_stat after_create :create_user_profile after_create :ensure_in_trust_level_group after_create :automatic_group_membership before_save :update_username_lower before_save :ensure_password_is_hashed after_save :update_tracked_topics after_save :clear_global_notice_if_needed after_save :refresh_avatar after_save :badge_grant after_save :expire_old_email_tokens before_destroy do # These tables don't have primary keys, so destroying them with activerecord is tricky: PostTiming.delete_all(user_id: self.id) TopicViewItem.delete_all(user_id: self.id) end # Whether we need to be sending a system message after creation attr_accessor :send_welcome_message # This is just used to pass some information into the serializer attr_accessor :notification_channel_position # set to true to optimize creation and save for imports attr_accessor :import_mode # excluding fake users like the system user or anonymous users scope :real, -> { where('id > 0').where('NOT EXISTS( SELECT 1 FROM user_custom_fields ucf WHERE ucf.user_id = users.id AND ucf.name = ? AND ucf.value::int > 0 )', 'master_id') } scope :staff, -> { where("admin OR moderator") } # TODO-PERF: There is no indexes on any of these # and NotifyMailingListSubscribers does a select-all-and-loop # may want to create an index on (active, blocked, suspended_till, mailing_list_mode)? scope :blocked, -> { where(blocked: true) } scope :not_blocked, -> { where(blocked: false) } scope :suspended, -> { where('suspended_till IS NOT NULL AND suspended_till > ?', Time.zone.now) } scope :not_suspended, -> { where('suspended_till IS NULL OR suspended_till <= ?', Time.zone.now) } scope :activated, -> { where(active: true) } module NewTopicDuration ALWAYS = -1 LAST_VISIT = -2 end def self.max_password_length 200 end def self.username_length SiteSetting.min_username_length.to_i..SiteSetting.max_username_length.to_i end def custom_groups groups.where(automatic: false, visible: true) end def self.username_available?(username) lower = username.downcase User.where(username_lower: lower).blank? end def effective_locale if SiteSetting.allow_user_locale && self.locale.present? self.locale else SiteSetting.default_locale end end EMAIL = %r{([^@]+)@([^\.]+)} def self.new_from_params(params) user = User.new user.name = params[:name] user.email = params[:email] user.password = params[:password] user.username = params[:username] user end def self.suggest_name(email) return "" unless email name = email.split(/[@\+]/)[0] name = name.gsub(".", " ") name.titleize end def self.find_by_username_or_email(username_or_email) if username_or_email.include?('@') find_by_email(username_or_email) else find_by_username(username_or_email) end end def self.find_by_email(email) find_by(email: Email.downcase(email)) end def self.find_by_username(username) find_by(username_lower: username.downcase) end def enqueue_welcome_message(message_type) return unless SiteSetting.send_welcome_message? Jobs.enqueue(:send_system_message, user_id: id, message_type: message_type) end def change_username(new_username, actor=nil) UsernameChanger.change(self, new_username, actor) end def created_topic_count stat = user_stat || create_user_stat stat.topic_count end alias_method :topic_count, :created_topic_count # tricky, we need our bus to be subscribed from the right spot def sync_notification_channel_position @unread_notifications_by_type = nil self.notification_channel_position = MessageBus.last_id("/notification/#{id}") end def invited_by used_invite = invites.where("redeemed_at is not null").includes(:invited_by).first used_invite.try(:invited_by) end # Approve this user def approve(approved_by, send_mail=true) self.approved = true if approved_by.is_a?(Fixnum) self.approved_by_id = approved_by else self.approved_by = approved_by end self.approved_at = Time.now send_approval_email if save and send_mail end def self.email_hash(email) Digest::MD5.hexdigest(email.strip.downcase) end def email_hash User.email_hash(email) end def reload @unread_notifications = nil @unread_total_notifications = nil @unread_pms = nil super end def unread_private_messages @unread_pms ||= begin # perf critical, much more efficient than AR sql = " SELECT COUNT(*) FROM notifications n LEFT JOIN topics t ON n.topic_id = t.id WHERE t.deleted_at IS NULL AND n.notification_type = :type AND n.user_id = :user_id AND NOT read" User.exec_sql(sql, user_id: id, type: Notification.types[:private_message]) .getvalue(0,0).to_i end end def unread_notifications @unread_notifications ||= begin # perf critical, much more efficient than AR sql = " SELECT COUNT(*) FROM notifications n LEFT JOIN topics t ON n.topic_id = t.id WHERE t.deleted_at IS NULL AND n.notification_type <> :pm AND n.user_id = :user_id AND NOT read AND n.id > :seen_notification_id" User.exec_sql(sql, user_id: id, seen_notification_id: seen_notification_id, pm: Notification.types[:private_message]) .getvalue(0,0).to_i end end def total_unread_notifications @unread_total_notifications ||= notifications.where("read = false").count end def saw_notification_id(notification_id) User.where("id = ? and seen_notification_id < ?", id, notification_id) .update_all ["seen_notification_id = ?", notification_id] # mark all "badge granted" and "invite accepted" notifications read Notification.where('user_id = ? AND NOT read AND notification_type IN (?)', id, [Notification.types[:granted_badge], Notification.types[:invitee_accepted]]) .update_all ["read = ?", true] end def publish_notifications_state MessageBus.publish("/notification/#{id}", {unread_notifications: unread_notifications, unread_private_messages: unread_private_messages, total_unread_notifications: total_unread_notifications}, user_ids: [id] # only publish the notification to this user ) end # A selection of people to autocomplete on @mention def self.mentionable_usernames User.select(:username).order('last_posted_at desc').limit(20) end def password=(password) # special case for passwordless accounts unless password.blank? @raw_password = password self.auth_token = nil end end def password '' # so that validator doesn't complain that a password attribute doesn't exist end # Indicate that this is NOT a passwordless account for the purposes of validation def password_required! @password_required = true end def password_required? !!@password_required end def has_password? password_hash.present? end def password_validator PasswordValidator.new(attributes: :password).validate_each(self, :password, @raw_password) end def confirm_password?(password) return false unless password_hash && salt self.password_hash == hash_password(password, salt) end def first_day_user? !staff? && trust_level < TrustLevel[2] && created_at >= 24.hours.ago end def new_user? (created_at >= 24.hours.ago || trust_level == TrustLevel[0]) && trust_level < TrustLevel[2] && !staff? end def seen_before? last_seen_at.present? end def create_visit_record!(date, opts={}) user_stat.update_column(:days_visited, user_stat.days_visited + 1) user_visits.create!(visited_at: date, posts_read: opts[:posts_read] || 0, mobile: opts[:mobile] || false) end def visit_record_for(date) user_visits.find_by(visited_at: date) end def update_visit_record!(date) create_visit_record!(date) unless visit_record_for(date) end def update_posts_read!(num_posts, opts={}) now = opts[:at] || Time.zone.now _retry = opts[:retry] || false if user_visit = visit_record_for(now.to_date) user_visit.posts_read += num_posts user_visit.mobile = true if opts[:mobile] user_visit.save user_visit else begin create_visit_record!(now.to_date, posts_read: num_posts, mobile: opts.fetch(:mobile, false)) rescue ActiveRecord::RecordNotUnique if !_retry update_posts_read!(num_posts, now, _retry=true) else raise end end end end def update_ip_address!(new_ip_address) unless ip_address == new_ip_address || new_ip_address.blank? update_column(:ip_address, new_ip_address) end end def update_last_seen!(now=Time.zone.now) now_date = now.to_date # Only update last seen once every minute redis_key = "user:#{id}:#{now_date}" return unless $redis.setnx(redis_key, "1") $redis.expire(redis_key, SiteSetting.active_user_rate_limit_secs) update_previous_visit(now) # using update_column to avoid the AR transaction update_column(:last_seen_at, now) end def self.gravatar_template(email) email_hash = self.email_hash(email) "//www.gravatar.com/avatar/#{email_hash}.png?s={size}&r=pg&d=identicon" end # Don't pass this up to the client - it's meant for server side use # This is used in # - self oneboxes in open graph data # - emails def small_avatar_url avatar_template_url.gsub("{size}", "45") end def avatar_template_url UrlHelper.schemaless UrlHelper.absolute avatar_template end def self.default_template(username) if SiteSetting.default_avatars.present? split_avatars = SiteSetting.default_avatars.split("\n") if split_avatars.present? hash = username.each_char.reduce(0) do |result, char| [((result << 5) - result) + char.ord].pack('L').unpack('l').first end avatar_template = split_avatars[hash.abs % split_avatars.size] end else "#{Discourse.base_uri}/letter_avatar/#{username.downcase}/{size}/#{LetterAvatar.version}.png" end end def self.avatar_template(username,uploaded_avatar_id) return default_template(username) if !uploaded_avatar_id username ||= "" hostname = RailsMultisite::ConnectionManagement.current_hostname UserAvatar.local_avatar_template(hostname, username.downcase, uploaded_avatar_id) end def self.letter_avatar_template(username) "#{Discourse.base_uri}/letter_avatar/#{username.downcase}/{size}/#{LetterAvatar.version}.png" end def avatar_template self.class.avatar_template(username,uploaded_avatar_id) end # The following count methods are somewhat slow - definitely don't use them in a loop. # They might need to be denormalized def like_count UserAction.where(user_id: id, action_type: UserAction::WAS_LIKED).count end def like_given_count UserAction.where(user_id: id, action_type: UserAction::LIKE).count end def post_count stat = user_stat || create_user_stat stat.post_count end def flags_given_count PostAction.where(user_id: id, post_action_type_id: PostActionType.flag_types.values).count end def warnings_received_count warnings.count end def flags_received_count posts.includes(:post_actions).where('post_actions.post_action_type_id' => PostActionType.flag_types.values).count end def private_topics_count topics_allowed.where(archetype: Archetype.private_message).count end def posted_too_much_in_topic?(topic_id) # Does not apply to staff, non-new members or your own topics return false if staff? || (trust_level != TrustLevel[0]) || Topic.where(id: topic_id, user_id: id).exists? last_action_in_topic = UserAction.last_action_in_topic(id, topic_id) since_reply = Post.where(user_id: id, topic_id: topic_id) since_reply = since_reply.where('id > ?', last_action_in_topic) if last_action_in_topic (since_reply.count >= SiteSetting.newuser_max_replies_per_topic) end def delete_all_posts!(guardian) raise Discourse::InvalidAccess unless guardian.can_delete_all_posts? self QueuedPost.where(user_id: id).delete_all posts.order("post_number desc").each do |p| PostDestroyer.new(guardian.user, p).destroy end end def suspended? suspended_till && suspended_till > DateTime.now end def suspend_record UserHistory.for(self, :suspend_user).order('id DESC').first end def suspend_reason suspend_record.try(:details) if suspended? end # Use this helper to determine if the user has a particular trust level. # Takes into account admin, etc. def has_trust_level?(level) raise "Invalid trust level #{level}" unless TrustLevel.valid?(level) admin? || moderator? || TrustLevel.compare(trust_level, level) end # a touch faster than automatic def admin? admin end def guardian Guardian.new(self) end def username_format_validator UsernameValidator.perform_validation(self, 'username') end def email_confirmed? email_tokens.where(email: email, confirmed: true).present? || email_tokens.empty? end def activate email_token = self.email_tokens.active.first if email_token EmailToken.confirm(email_token.token) else self.active = true save end end def deactivate self.active = false save end def change_trust_level!(level, opts=nil) Promotion.new(self).change_trust_level!(level, opts) end def treat_as_new_topic_start_date duration = new_topic_duration_minutes || SiteSetting.new_topic_duration_minutes [case duration when User::NewTopicDuration::ALWAYS created_at when User::NewTopicDuration::LAST_VISIT previous_visit_at || user_stat.new_since else duration.minutes.ago end, user_stat.new_since].max end def readable_name return "#{name} (#{username})" if name.present? && name != username username end def badge_count user_badges.select('distinct badge_id').count end def featured_user_badges user_badges .joins(:badge) .order("CASE WHEN badges.id = (SELECT MAX(ub2.badge_id) FROM user_badges ub2 WHERE ub2.badge_id IN (#{Badge.trust_level_badge_ids.join(",")}) AND ub2.user_id = #{self.id}) THEN 1 ELSE 0 END DESC") .order('badges.badge_type_id ASC, badges.grant_count ASC') .includes(:user, :granted_by, badge: :badge_type) .where("user_badges.id in (select min(u2.id) from user_badges u2 where u2.user_id = ? group by u2.badge_id)", id) .limit(3) end def self.count_by_signup_date(start_date, end_date) where('created_at >= ? and created_at <= ?', start_date, end_date).group('date(created_at)').order('date(created_at)').count end def secure_category_ids cats = self.admin? ? Category.where(read_restricted: true) : secure_categories.references(:categories) cats.pluck('categories.id').sort end def topic_create_allowed_category_ids Category.topic_create_allowed(self.id).select(:id) end # Flag all posts from a user as spam def flag_linked_posts_as_spam admin = Discourse.system_user topic_links.includes(:post).each do |tl| begin PostAction.act(admin, tl.post, PostActionType.types[:spam], message: I18n.t('flag_reason.spam_hosts')) rescue PostAction::AlreadyActed # If the user has already acted, just ignore it end end end def has_uploaded_avatar uploaded_avatar.present? end def generate_api_key(created_by) if api_key.present? api_key.regenerate!(created_by) api_key else ApiKey.create(user: self, key: SecureRandom.hex(32), created_by: created_by) end end def revoke_api_key ApiKey.where(user_id: self.id).delete_all end def find_email last_sent_email_address || email end def tl3_requirements @lq ||= TrustLevel3Requirements.new(self) end def on_tl3_grace_period? UserHistory.for(self, :auto_trust_level_change) .where('created_at >= ?', SiteSetting.tl3_promotion_min_duration.to_i.days.ago) .where(previous_value: TrustLevel[2].to_s) .where(new_value: TrustLevel[3].to_s) .exists? end def should_be_redirected_to_top redirected_to_top_reason.present? end def redirected_to_top_reason # redirect is enabled return unless SiteSetting.redirect_users_to_top_page # top must be in the top_menu return unless SiteSetting.top_menu =~ /top/i # there should be enough topics return unless SiteSetting.has_enough_topics_to_redirect_to_top if !seen_before? || (trust_level == 0 && !redirected_to_top_yet?) update_last_redirected_to_top! return I18n.t('redirected_to_top_reasons.new_user') elsif last_seen_at < 1.month.ago update_last_redirected_to_top! return I18n.t('redirected_to_top_reasons.not_seen_in_a_month') end # no reason nil end def redirected_to_top_yet? last_redirected_to_top_at.present? end def update_last_redirected_to_top! key = "user:#{id}:update_last_redirected_to_top" delay = SiteSetting.active_user_rate_limit_secs # only update last_redirected_to_top_at once every minute return unless $redis.setnx(key, "1") $redis.expire(key, delay) # delay the update Jobs.enqueue_in(delay / 2, :update_top_redirection, user_id: self.id, redirected_at: Time.zone.now) end def refresh_avatar return if @import_mode avatar = user_avatar || create_user_avatar if SiteSetting.automatically_download_gravatars? && !avatar.last_gravatar_download_attempt Jobs.enqueue(:update_gravatar, user_id: self.id, avatar_id: avatar.id) end # mark all the user's quoted posts as "needing a rebake" Post.rebake_all_quoted_posts(self.id) if self.uploaded_avatar_id_changed? end def first_post_created_at user_stat.try(:first_post_created_at) end def associated_accounts result = [] result << "Twitter(#{twitter_user_info.screen_name})" if twitter_user_info result << "Facebook(#{facebook_user_info.username})" if facebook_user_info result << "Google(#{google_user_info.email})" if google_user_info result << "Github(#{github_user_info.screen_name})" if github_user_info user_open_ids.each do |oid| result << "OpenID #{oid.url[0..20]}...(#{oid.email})" end result.empty? ? I18n.t("user.no_accounts_associated") : result.join(", ") end def user_fields return @user_fields if @user_fields user_field_ids = UserField.pluck(:id) if user_field_ids.present? @user_fields = {} user_field_ids.each do |fid| @user_fields[fid.to_s] = custom_fields["user_field_#{fid}"] end end @user_fields end def title=(val) write_attribute(:title, val) if !new_record? && user_profile user_profile.update_column(:badge_granted_title, false) end end def number_of_deleted_posts Post.with_deleted .where(user_id: self.id) .where.not(deleted_at: nil) .count end def number_of_flagged_posts Post.with_deleted .where(user_id: self.id) .where(id: PostAction.where(post_action_type_id: PostActionType.notify_flag_type_ids) .where(disagreed_at: nil) .select(:post_id)) .count end def number_of_flags_given PostAction.where(user_id: self.id) .where(disagreed_at: nil) .where(post_action_type_id: PostActionType.notify_flag_type_ids) .count end def number_of_warnings self.warnings.count end def number_of_suspensions UserHistory.for(self, :suspend_user).count end def create_user_profile UserProfile.create(user_id: id) end def anonymous? SiteSetting.allow_anonymous_posting && trust_level >= 1 && custom_fields["master_id"].to_i > 0 end protected def badge_grant BadgeGranter.queue_badge_grant(Badge::Trigger::UserChange, user: self) end def expire_old_email_tokens if password_hash_changed? && !id_changed? email_tokens.where('not expired').update_all(expired: true) end end def update_tracked_topics return unless auto_track_topics_after_msecs_changed? TrackedTopicsUpdater.new(id, auto_track_topics_after_msecs).call end def clear_global_notice_if_needed if admin && SiteSetting.has_login_hint SiteSetting.has_login_hint = false SiteSetting.global_notice = "" end end def ensure_in_trust_level_group Group.user_trust_level_change!(id, trust_level) end def automatic_group_membership Group.where(automatic: false) .where("LENGTH(COALESCE(automatic_membership_email_domains, '')) > 0") .each do |group| domains = group.automatic_membership_email_domains.gsub('.', '\.') if self.email =~ Regexp.new("@(#{domains})$", true) group.add(self) rescue ActiveRecord::RecordNotUnique end end end def create_user_stat stat = UserStat.new(new_since: Time.now) stat.user_id = id stat.save! end def create_email_token email_tokens.create(email: email) end def ensure_password_is_hashed if @raw_password self.salt = SecureRandom.hex(16) self.password_hash = hash_password(@raw_password, salt) end end def hash_password(password, salt) raise "password is too long" if password.size > User.max_password_length Pbkdf2.hash_password(password, salt, Rails.configuration.pbkdf2_iterations, Rails.configuration.pbkdf2_algorithm) end def add_trust_level # there is a possibility we did not load trust level column, skip it return unless has_attribute? :trust_level self.trust_level ||= SiteSetting.default_trust_level end def update_username_lower self.username_lower = username.downcase end def strip_downcase_email if self.email self.email = self.email.strip self.email = self.email.downcase end end def username_validator username_format_validator || begin lower = username.downcase existing = User.find_by(username_lower: lower) if username_changed? && existing && existing.id != self.id errors.add(:username, I18n.t(:'user.username.unique')) end end end def send_approval_email if SiteSetting.must_approve_users Jobs.enqueue(:user_email, type: :signup_after_approval, user_id: id, email_token: email_tokens.first.token ) end end def set_default_email_digest if has_attribute?(:email_digests) && self.email_digests.nil? if SiteSetting.default_digest_email_frequency.blank? self.email_digests = false else self.email_digests = true self.digest_after_days ||= SiteSetting.default_digest_email_frequency.to_i if has_attribute?(:digest_after_days) end end end def set_default_external_links_in_new_tab if has_attribute?(:external_links_in_new_tab) && self.external_links_in_new_tab.nil? self.external_links_in_new_tab = !SiteSetting.default_external_links_in_new_tab.blank? end end # Delete unactivated accounts (without verified email) that are over a week old def self.purge_unactivated to_destroy = User.where(active: false) .joins('INNER JOIN user_stats AS us ON us.user_id = users.id') .where("created_at < ?", SiteSetting.purge_unactivated_users_grace_period_days.days.ago) .where('NOT admin AND NOT moderator') .limit(100) destroyer = UserDestroyer.new(Discourse.system_user) to_destroy.each do |u| begin destroyer.destroy(u, context: I18n.t(:purge_reason)) rescue Discourse::InvalidAccess, UserDestroyer::PostsExistError # if for some reason the user can't be deleted, continue on to the next one end end end private def previous_visit_at_update_required?(timestamp) seen_before? && (last_seen_at < (timestamp - SiteSetting.previous_visit_timeout_hours.hours)) end def update_previous_visit(timestamp) update_visit_record!(timestamp.to_date) if previous_visit_at_update_required?(timestamp) update_column(:previous_visit_at, last_seen_at) end end end # == Schema Information # # Table name: users # # id :integer not null, primary key # username :string(60) not null # created_at :datetime not null # updated_at :datetime not null # name :string(255) # seen_notification_id :integer default(0), not null # last_posted_at :datetime # email :string(256) not null # password_hash :string(64) # salt :string(32) # active :boolean default(FALSE), not null # username_lower :string(60) not null # auth_token :string(32) # last_seen_at :datetime # admin :boolean default(FALSE), not null # last_emailed_at :datetime # email_digests :boolean not null # trust_level :integer not null # email_private_messages :boolean default(TRUE) # email_direct :boolean default(TRUE), not null # approved :boolean default(FALSE), not null # approved_by_id :integer # approved_at :datetime # digest_after_days :integer # previous_visit_at :datetime # suspended_at :datetime # suspended_till :datetime # date_of_birth :date # auto_track_topics_after_msecs :integer # views :integer default(0), not null # flag_level :integer default(0), not null # ip_address :inet # new_topic_duration_minutes :integer # external_links_in_new_tab :boolean not null # enable_quoting :boolean default(TRUE), not null # moderator :boolean default(FALSE) # blocked :boolean default(FALSE) # dynamic_favicon :boolean default(FALSE), not null # title :string(255) # uploaded_avatar_id :integer # email_always :boolean default(FALSE), not null # mailing_list_mode :boolean default(FALSE), not null # locale :string(10) # primary_group_id :integer # registration_ip_address :inet # last_redirected_to_top_at :datetime # disable_jump_reply :boolean default(FALSE), not null # edit_history_public :boolean default(FALSE), not null # trust_level_locked :boolean default(FALSE), not null # # Indexes # # index_users_on_auth_token (auth_token) # index_users_on_last_posted_at (last_posted_at) # index_users_on_last_seen_at (last_seen_at) # index_users_on_username (username) UNIQUE # index_users_on_username_lower (username_lower) UNIQUE #