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mastodon/app/models/tag.rb
Eugen Rochko 9bd23dc4e5
Track trending tags (#7638)
* Track trending tags

- Half-life of 1 day
- Historical usage in daily buckets (last 7 days stored)
- GET /api/v1/trends

Fix #271

* Add trends to web UI

* Don't render compose form on search route, adjust search results header

* Disqualify tag from trends if it's in disallowed hashtags setting

* Count distinct accounts using tag, ignore silenced accounts
2018-05-27 21:45:30 +02:00

47 lines
1.1 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
#
class Tag < ApplicationRecord
has_and_belongs_to_many :statuses
HASHTAG_NAME_RE = '[[:word:]_]*[[:alpha:]_·][[:word:]_]*'
HASHTAG_RE = /(?:^|[^\/\)\w])#(#{HASHTAG_NAME_RE})/i
validates :name, presence: true, uniqueness: true, format: { with: /\A#{HASHTAG_NAME_RE}\z/i }
def to_param
name
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 search_for(term, limit = 5)
pattern = sanitize_sql_like(term.strip) + '%'
Tag.where('lower(name) like lower(?)', pattern).order(:name).limit(limit)
end
end
end