闭社主体
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260 lines
8.7 KiB
260 lines
8.7 KiB
# frozen_string_literal: true
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# == Schema Information
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#
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# Table name: accounts
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#
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# id :integer not null, primary key
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# username :string default(""), not null
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# domain :string
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# secret :string default(""), not null
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# private_key :text
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# public_key :text default(""), not null
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# remote_url :string default(""), not null
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# salmon_url :string default(""), not null
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# hub_url :string default(""), not null
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# created_at :datetime not null
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# updated_at :datetime not null
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# note :text default(""), not null
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# display_name :string default(""), not null
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# uri :string default(""), not null
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# url :string
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# avatar_file_name :string
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# avatar_content_type :string
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# avatar_file_size :integer
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# avatar_updated_at :datetime
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# header_file_name :string
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# header_content_type :string
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# header_file_size :integer
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# header_updated_at :datetime
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# avatar_remote_url :string
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# subscription_expires_at :datetime
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# silenced :boolean default(FALSE), not null
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# suspended :boolean default(FALSE), not null
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# locked :boolean default(FALSE), not null
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# header_remote_url :string default(""), not null
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# statuses_count :integer default(0), not null
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# followers_count :integer default(0), not null
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# following_count :integer default(0), not null
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# last_webfingered_at :datetime
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#
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class Account < ApplicationRecord
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MENTION_RE = /(?:^|[^\/[:word:]])@([a-z0-9_]+(?:@[a-z0-9\.\-]+[a-z0-9]+)?)/i
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include AccountAvatar
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include AccountFinderConcern
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include AccountHeader
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include AccountInteractions
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include Attachmentable
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include Remotable
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# Local users
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has_one :user, inverse_of: :account
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validates :username, presence: true
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# Remote user validations
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validates :username, uniqueness: { scope: :domain, case_sensitive: true }, if: -> { !local? && username_changed? }
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# Local user validations
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validates :username, format: { with: /\A[a-z0-9_]+\z/i }, uniqueness: { scope: :domain, case_sensitive: false }, length: { maximum: 30 }, if: -> { local? && username_changed? }
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validates_with UnreservedUsernameValidator, if: -> { local? && username_changed? }
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validates :display_name, length: { maximum: 30 }, if: -> { local? && display_name_changed? }
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validates :note, length: { maximum: 160 }, if: -> { local? && note_changed? }
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# Timelines
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has_many :stream_entries, inverse_of: :account, dependent: :destroy
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has_many :statuses, inverse_of: :account, dependent: :destroy
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has_many :favourites, inverse_of: :account, dependent: :destroy
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has_many :mentions, inverse_of: :account, dependent: :destroy
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has_many :notifications, inverse_of: :account, dependent: :destroy
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# Media
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has_many :media_attachments, dependent: :destroy
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# PuSH subscriptions
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has_many :subscriptions, dependent: :destroy
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# Report relationships
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has_many :reports
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has_many :targeted_reports, class_name: 'Report', foreign_key: :target_account_id
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scope :remote, -> { where.not(domain: nil) }
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scope :local, -> { where(domain: nil) }
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scope :without_followers, -> { where(followers_count: 0) }
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scope :with_followers, -> { where('followers_count > 0') }
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scope :expiring, ->(time) { where(subscription_expires_at: nil).or(where('subscription_expires_at < ?', time)).remote.with_followers }
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scope :partitioned, -> { order('row_number() over (partition by domain)') }
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scope :silenced, -> { where(silenced: true) }
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scope :suspended, -> { where(suspended: true) }
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scope :recent, -> { reorder(id: :desc) }
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scope :alphabetic, -> { order(domain: :asc, username: :asc) }
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scope :by_domain_accounts, -> { group(:domain).select(:domain, 'COUNT(*) AS accounts_count').order('accounts_count desc') }
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scope :matches_username, ->(value) { where(arel_table[:username].matches("#{value}%")) }
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scope :matches_display_name, ->(value) { where(arel_table[:display_name].matches("#{value}%")) }
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delegate :email,
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:current_sign_in_ip,
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:current_sign_in_at,
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:confirmed?,
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:locale,
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to: :user,
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prefix: true,
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allow_nil: true
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delegate :filtered_languages, to: :user, prefix: false, allow_nil: true
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def local?
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domain.nil?
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end
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def acct
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local? ? username : "#{username}@#{domain}"
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end
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def local_username_and_domain
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"#{username}@#{Rails.configuration.x.local_domain}"
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end
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def to_webfinger_s
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"acct:#{local_username_and_domain}"
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end
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def subscribed?
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subscription_expires_at.present?
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end
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def followers_domains
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followers.reorder(nil).pluck('distinct accounts.domain')
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end
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def keypair
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OpenSSL::PKey::RSA.new(private_key || public_key)
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end
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def subscription(webhook_url)
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OStatus2::Subscription.new(remote_url, secret: secret, lease_seconds: 86_400 * 30, webhook: webhook_url, hub: hub_url)
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end
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def save_with_optional_media!
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save!
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rescue ActiveRecord::RecordInvalid
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self.avatar = nil
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self.header = nil
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self[:avatar_remote_url] = ''
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self[:header_remote_url] = ''
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save!
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end
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def object_type
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:person
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end
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def to_param
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username
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end
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def excluded_from_timeline_account_ids
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Rails.cache.fetch("exclude_account_ids_for:#{id}") { blocking.pluck(:target_account_id) + blocked_by.pluck(:account_id) + muting.pluck(:target_account_id) }
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end
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def excluded_from_timeline_domains
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Rails.cache.fetch("exclude_domains_for:#{id}") { domain_blocks.pluck(:domain) }
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end
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class << self
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def triadic_closures(account, limit: 5, offset: 0)
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sql = <<-SQL.squish
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WITH first_degree AS (
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SELECT target_account_id
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FROM follows
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WHERE account_id = :account_id
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)
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SELECT accounts.*
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FROM follows
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INNER JOIN accounts ON follows.target_account_id = accounts.id
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WHERE
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account_id IN (SELECT * FROM first_degree)
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AND target_account_id NOT IN (SELECT * FROM first_degree)
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AND target_account_id NOT IN (:excluded_account_ids)
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GROUP BY target_account_id, accounts.id
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ORDER BY count(account_id) DESC
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OFFSET :offset
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LIMIT :limit
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SQL
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excluded_account_ids = account.excluded_from_timeline_account_ids + [account.id]
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find_by_sql(
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[sql, { account_id: account.id, excluded_account_ids: excluded_account_ids, limit: limit, offset: offset }]
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)
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end
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def search_for(terms, limit = 10)
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textsearch, query = generate_query_for_search(terms)
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sql = <<-SQL.squish
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SELECT
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accounts.*,
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ts_rank_cd(#{textsearch}, #{query}, 32) AS rank
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FROM accounts
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WHERE #{query} @@ #{textsearch}
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ORDER BY rank DESC
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LIMIT ?
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SQL
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find_by_sql([sql, limit])
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end
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def advanced_search_for(terms, account, limit = 10)
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textsearch, query = generate_query_for_search(terms)
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sql = <<-SQL.squish
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SELECT
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accounts.*,
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(count(f.id) + 1) * ts_rank_cd(#{textsearch}, #{query}, 32) AS rank
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FROM accounts
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LEFT OUTER JOIN follows AS f ON (accounts.id = f.account_id AND f.target_account_id = ?) OR (accounts.id = f.target_account_id AND f.account_id = ?)
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WHERE #{query} @@ #{textsearch}
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GROUP BY accounts.id
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ORDER BY rank DESC
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LIMIT ?
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SQL
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find_by_sql([sql, account.id, account.id, limit])
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end
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private
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def generate_query_for_search(terms)
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terms = Arel.sql(connection.quote(terms.gsub(/['?\\:]/, ' ')))
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textsearch = "(setweight(to_tsvector('simple', accounts.display_name), 'A') || setweight(to_tsvector('simple', accounts.username), 'B') || setweight(to_tsvector('simple', coalesce(accounts.domain, '')), 'C'))"
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query = "to_tsquery('simple', ''' ' || #{terms} || ' ''' || ':*')"
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[textsearch, query]
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end
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def follow_mapping(query, field)
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query.pluck(field).each_with_object({}) { |id, mapping| mapping[id] = true }
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end
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end
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before_create :generate_keys
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before_validation :normalize_domain
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private
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def generate_keys
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return unless local?
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keypair = OpenSSL::PKey::RSA.new(Rails.env.test? ? 1024 : 2048)
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self.private_key = keypair.to_pem
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self.public_key = keypair.public_key.to_pem
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end
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def normalize_domain
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return if local?
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self.domain = TagManager.instance.normalize_domain(domain)
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end
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end
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