hometown/app/models/tag.rb
Eugen Rochko 74081433d0
Change trending hashtags to be affected be reblogs (#16164)
If a status with a hashtag becomes very popular, it stands to
reason that the hashtag should have a chance at trending

Fix no stats being recorded for hashtags that are not allowed
to trend, and stop ignoring bots

Remove references to hashtags in profile directory from the code
and the admin UI
2021-05-07 14:33:43 +02:00

153 lines
4.3 KiB
Ruby

# frozen_string_literal: true
# == Schema Information
#
# Table name: tags
#
# id :bigint(8) not null, primary key
# name :string default(""), not null
# created_at :datetime not null
# updated_at :datetime not null
# usable :boolean
# trendable :boolean
# listable :boolean
# reviewed_at :datetime
# requested_review_at :datetime
# last_status_at :datetime
# max_score :float
# max_score_at :datetime
#
class Tag < ApplicationRecord
has_and_belongs_to_many :statuses
has_and_belongs_to_many :accounts
has_many :featured_tags, dependent: :destroy, inverse_of: :tag
HASHTAG_SEPARATORS = "_\u00B7\u200c"
HASHTAG_NAME_RE = "([[:word:]_][[:word:]#{HASHTAG_SEPARATORS}]*[[:alpha:]#{HASHTAG_SEPARATORS}][[:word:]#{HASHTAG_SEPARATORS}]*[[:word:]_])|([[:word:]_]*[[:alpha:]][[:word:]_]*)"
HASHTAG_RE = /(?:^|[^\/\)\w])#(#{HASHTAG_NAME_RE})/i
validates :name, presence: true, format: { with: /\A(#{HASHTAG_NAME_RE})\z/i }
validate :validate_name_change, if: -> { !new_record? && name_changed? }
scope :reviewed, -> { where.not(reviewed_at: nil) }
scope :unreviewed, -> { where(reviewed_at: nil) }
scope :pending_review, -> { unreviewed.where.not(requested_review_at: nil) }
scope :usable, -> { where(usable: [true, nil]) }
scope :listable, -> { where(listable: [true, nil]) }
scope :trendable, -> { Setting.trendable_by_default ? where(trendable: [true, nil]) : where(trendable: true) }
scope :recently_used, ->(account) { joins(:statuses).where(statuses: { id: account.statuses.select(:id).limit(1000) }).group(:id).order(Arel.sql('count(*) desc')) }
scope :matches_name, ->(term) { where(arel_table[:name].lower.matches(arel_table.lower("#{sanitize_sql_like(Tag.normalize(term))}%"), nil, true)) } # Search with case-sensitive to use B-tree index
update_index('tags#tag', :self)
def to_param
name
end
def usable
boolean_with_default('usable', true)
end
alias usable? usable
def listable
boolean_with_default('listable', true)
end
alias listable? listable
def trendable
boolean_with_default('trendable', Setting.trendable_by_default)
end
alias trendable? trendable
def requires_review?
reviewed_at.nil?
end
def reviewed?
reviewed_at.present?
end
def requested_review?
requested_review_at.present?
end
def use!(account, status: nil, at_time: Time.now.utc)
TrendingTags.record_use!(self, account, status: status, at_time: at_time)
end
def trending?
TrendingTags.trending?(self)
end
def history
days = []
7.times do |i|
day = i.days.ago.beginning_of_day.to_i
days << {
day: day.to_s,
uses: Redis.current.get("activity:tags:#{id}:#{day}") || '0',
accounts: Redis.current.pfcount("activity:tags:#{id}:#{day}:accounts").to_s,
}
end
days
end
class << self
def find_or_create_by_names(name_or_names)
Array(name_or_names).map(&method(:normalize)).uniq { |str| str.mb_chars.downcase.to_s }.map do |normalized_name|
tag = matching_name(normalized_name).first || create(name: normalized_name)
yield tag if block_given?
tag
end
end
def search_for(term, limit = 5, offset = 0, options = {})
stripped_term = term.strip
query = Tag.listable.matches_name(stripped_term)
query = query.merge(matching_name(stripped_term).or(where.not(reviewed_at: nil))) if options[:exclude_unreviewed]
query.order(Arel.sql('length(name) ASC, name ASC'))
.limit(limit)
.offset(offset)
end
def find_normalized(name)
matching_name(name).first
end
def find_normalized!(name)
find_normalized(name) || raise(ActiveRecord::RecordNotFound)
end
def matching_name(name_or_names)
names = Array(name_or_names).map { |name| arel_table.lower(normalize(name)) }
if names.size == 1
where(arel_table[:name].lower.eq(names.first))
else
where(arel_table[:name].lower.in(names))
end
end
def normalize(str)
str.gsub(/\A#/, '')
end
end
private
def validate_name_change
errors.add(:name, I18n.t('tags.does_not_match_previous_name')) unless name_was.mb_chars.casecmp(name.mb_chars).zero?
end
end