2013-02-05 14:16:51 -05:00
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require_dependency 'jobs'
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require_dependency 'pretty_text'
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require_dependency 'rate_limiter'
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require_dependency 'post_revisor'
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require_dependency 'enum'
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require_dependency 'trashable'
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require_dependency 'post_analyzer'
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require_dependency 'validators/post_validator'
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require 'archetype'
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require 'digest/sha1'
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class Post < ActiveRecord::Base
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include RateLimiter::OnCreateRecord
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include Trashable
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versioned if: :raw_changed?
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rate_limit
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belongs_to :user
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belongs_to :topic, counter_cache: :posts_count
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belongs_to :reply_to_user, class_name: "User"
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has_many :post_replies
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has_many :replies, through: :post_replies
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has_many :post_actions
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has_many :topic_links
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has_and_belongs_to_many :upload
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has_one :post_search_data
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validates_with ::Validators::PostValidator
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# We can pass a hash of image sizes when saving to prevent crawling those images
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attr_accessor :image_sizes, :quoted_post_numbers, :no_bump, :invalidate_oneboxes
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SHORT_POST_CHARS = 1200
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scope :by_newest, -> { order('created_at desc, id desc') }
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scope :by_post_number, -> { order('post_number ASC') }
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scope :with_user, -> { includes(:user) }
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scope :public_posts, -> { joins(:topic).where('topics.archetype <> ?', Archetype.private_message) }
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scope :private_posts, -> { joins(:topic).where('topics.archetype = ?', Archetype.private_message) }
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scope :with_topic_subtype, ->(subtype) { joins(:topic).where('topics.subtype = ?', subtype) }
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def self.hidden_reasons
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@hidden_reasons ||= Enum.new(:flag_threshold_reached, :flag_threshold_reached_again, :new_user_spam_threshold_reached)
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end
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def self.types
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@types ||= Enum.new(:regular, :moderator_action)
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end
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2013-06-13 13:41:45 -04:00
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def trash!
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self.topic_links.each(&:destroy)
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super
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end
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def recover!
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super
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update_flagged_posts_count
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TopicLink.extract_from(self)
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end
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2013-03-22 06:18:48 -04:00
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# The key we use in redis to ensure unique posts
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def unique_post_key
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"post-#{user_id}:#{raw_hash}"
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end
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def raw_hash
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return if raw.blank?
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Digest::SHA1.hexdigest(raw.gsub(/\s+/, "").downcase)
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end
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def reset_cooked
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@cooked_document = nil
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self.cooked = nil
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end
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def self.white_listed_image_classes
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@white_listed_image_classes ||= ['avatar', 'favicon', 'thumbnail']
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end
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def post_analyzer
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@post_analyzer = PostAnalyzer.new(raw, topic_id)
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end
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2013-05-30 14:34:44 -04:00
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%w{raw_mentions linked_hosts image_count link_count raw_links}.each do |attr|
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define_method(attr) do
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PostAnalyzer.new(raw, topic_id).send(attr)
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end
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end
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def cook(*args)
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PostAnalyzer.new(raw, topic_id).cook(*args)
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end
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2013-04-05 13:59:00 -04:00
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# Sometimes the post is being edited by someone else, for example, a mod.
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# If that's the case, they should not be bound by the original poster's
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# restrictions, for example on not posting images.
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def acting_user
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@acting_user || user
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end
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def acting_user=(pu)
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@acting_user = pu
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end
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2013-05-10 16:58:23 -04:00
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def total_hosts_usage
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hosts = linked_hosts.clone
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2013-05-24 15:20:58 -04:00
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TopicLink.where(domain: hosts.keys, user_id: acting_user.id)
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.group(:domain, :post_id)
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.count.keys.each do |tuple|
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domain = tuple[0]
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hosts[domain] = (hosts[domain] || 0) + 1
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end
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hosts
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end
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# Prevent new users from posting the same hosts too many times.
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def has_host_spam?
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return false if acting_user.present? && acting_user.has_trust_level?(:basic)
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total_hosts_usage.each do |host, count|
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return true if count >= SiteSetting.newuser_spam_host_threshold
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end
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false
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end
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def archetype
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topic.archetype
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end
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def self.regular_order
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order(:sort_order, :post_number)
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end
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def self.reverse_order
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order('sort_order desc, post_number desc')
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end
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def self.best_of
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where(["(post_number = 1) or (percent_rank <= ?)", SiteSetting.best_of_percent_filter.to_f / 100.0])
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end
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2013-02-05 20:13:41 -05:00
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def update_flagged_posts_count
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PostAction.update_flagged_posts_count
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end
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2013-02-28 13:54:12 -05:00
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def filter_quotes(parent_post = nil)
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return cooked if parent_post.blank?
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# We only filter quotes when there is exactly 1
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return cooked unless (quote_count == 1)
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parent_raw = parent_post.raw.sub(/\[quote.+\/quote\]/m, '')
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if raw[parent_raw] || (parent_raw.size < SHORT_POST_CHARS)
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return cooked.sub(/\<aside.+\<\/aside\>/m, '')
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end
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cooked
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end
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def username
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user.username
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end
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def external_id
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"#{topic_id}/#{post_number}"
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end
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def quoteless?
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(quote_count == 0) && (reply_to_post_number.present?)
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end
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def reply_notification_target
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return if reply_to_post_number.blank?
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Post.where("topic_id = :topic_id AND post_number = :post_number AND user_id <> :user_id",
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topic_id: topic_id,
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post_number: reply_to_post_number,
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user_id: user_id).first.try(:user)
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end
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2013-04-29 23:25:55 -04:00
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def self.excerpt(cooked, maxlength = nil, options = {})
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maxlength ||= SiteSetting.post_excerpt_maxlength
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PrettyText.excerpt(cooked, maxlength, options)
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end
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# Strip out most of the markup
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2013-04-29 23:25:55 -04:00
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def excerpt(maxlength = nil, options = {})
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Post.excerpt(cooked, maxlength, options)
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end
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# A list of versions including the initial version
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def all_versions
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result = []
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result << { number: 1, display_username: user.username, created_at: created_at }
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versions.order(:number).includes(:user).each do |v|
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if v.user.present?
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result << { number: v.number, display_username: v.user.username, created_at: v.created_at }
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end
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end
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result
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end
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2013-05-25 20:18:04 -04:00
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def is_first_post?
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post_number == 1
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end
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2013-02-07 10:45:24 -05:00
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def is_flagged?
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2013-03-01 07:07:44 -05:00
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post_actions.where(post_action_type_id: PostActionType.flag_types.values, deleted_at: nil).count != 0
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2013-02-06 23:15:48 -05:00
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end
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def unhide!
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self.hidden = false
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self.hidden_reason_id = nil
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self.topic.update_attributes(visible: true)
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save
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2013-02-06 23:15:48 -05:00
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end
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2013-02-05 14:16:51 -05:00
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def url
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Post.url(topic.slug, topic.id, post_number)
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end
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2013-04-24 04:05:35 -04:00
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def self.url(slug, topic_id, post_number)
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"/t/#{slug}/#{topic_id}/#{post_number}"
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2013-04-22 03:45:03 -04:00
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end
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def self.urls(post_ids)
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ids = post_ids.map{|u| u}
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if ids.length > 0
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urls = {}
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Topic.joins(:posts).where('posts.id' => ids).
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select(['posts.id as post_id','post_number', 'topics.slug', 'topics.title', 'topics.id']).
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each do |t|
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urls[t.post_id.to_i] = url(t.slug, t.id, t.post_number)
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end
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urls
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else
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{}
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end
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2013-02-05 14:16:51 -05:00
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end
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2013-02-21 13:20:00 -05:00
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def author_readable
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user.readable_name
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end
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2013-02-28 13:54:12 -05:00
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def revise(updated_by, new_raw, opts = {})
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2013-02-09 10:33:07 -05:00
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PostRevisor.new(self).revise!(updated_by, new_raw, opts)
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end
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2013-02-05 14:16:51 -05:00
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before_create do
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2013-06-09 12:48:44 -04:00
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PostCreator.before_create_tasks(self)
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2013-02-05 14:16:51 -05:00
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end
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# TODO: Move some of this into an asynchronous job?
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2013-03-19 19:51:39 -04:00
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# TODO: Move into PostCreator
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2013-02-05 14:16:51 -05:00
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after_create do
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2013-06-09 12:48:44 -04:00
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PostCreator.after_create_tasks(self)
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2013-02-05 14:16:51 -05:00
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end
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# This calculates the geometric mean of the post timings and stores it along with
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2013-02-07 10:45:24 -05:00
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# each post.
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2013-02-05 14:16:51 -05:00
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def self.calculate_avg_time
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2013-02-11 15:47:28 -05:00
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retry_lock_error do
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exec_sql("UPDATE posts
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SET avg_time = (x.gmean / 1000)
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FROM (SELECT post_timings.topic_id,
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post_timings.post_number,
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round(exp(avg(ln(msecs)))) AS gmean
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FROM post_timings
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INNER JOIN posts AS p2
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ON p2.post_number = post_timings.post_number
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AND p2.topic_id = post_timings.topic_id
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AND p2.user_id <> post_timings.user_id
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GROUP BY post_timings.topic_id, post_timings.post_number) AS x
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WHERE x.topic_id = posts.topic_id
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AND x.post_number = posts.post_number")
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end
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2013-02-05 14:16:51 -05:00
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end
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2013-02-07 10:45:24 -05:00
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before_save do
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self.last_editor_id ||= user_id
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2013-02-05 14:16:51 -05:00
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self.cooked = cook(raw, topic_id: topic_id) unless new_record?
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end
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2013-03-18 15:12:31 -04:00
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def advance_draft_sequence
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return if topic.blank? # could be deleted
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DraftSequence.next!(last_editor_id, topic.draft_key)
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end
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2013-05-22 15:45:31 -04:00
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2013-03-18 15:54:08 -04:00
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# Determine what posts are quoted by this post
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2013-02-05 14:16:51 -05:00
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def extract_quoted_post_numbers
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2013-05-22 15:45:31 -04:00
|
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|
temp_collector = []
|
2013-02-05 14:16:51 -05:00
|
|
|
|
|
|
|
# Create relationships for the quotes
|
2013-05-22 15:38:45 -04:00
|
|
|
raw.scan(/\[quote=\"([^"]+)"\]/).each do |quote|
|
|
|
|
args = parse_quote_into_arguments(quote)
|
2013-05-22 15:45:31 -04:00
|
|
|
# If the topic attribute is present, ensure it's the same topic
|
|
|
|
temp_collector << args[:post] unless (args[:topic].present? && topic_id != args[:topic])
|
2013-02-05 14:16:51 -05:00
|
|
|
end
|
2013-02-07 10:45:24 -05:00
|
|
|
|
2013-05-22 15:45:31 -04:00
|
|
|
temp_collector.uniq!
|
|
|
|
self.quoted_post_numbers = temp_collector
|
|
|
|
self.quote_count = temp_collector.size
|
2013-02-05 14:16:51 -05:00
|
|
|
end
|
|
|
|
|
2013-05-23 12:09:06 -04:00
|
|
|
|
2013-03-18 15:54:08 -04:00
|
|
|
def save_reply_relationships
|
2013-05-23 12:09:06 -04:00
|
|
|
add_to_quoted_post_numbers(reply_to_post_number)
|
|
|
|
return if self.quoted_post_numbers.blank?
|
2013-03-18 15:54:08 -04:00
|
|
|
|
|
|
|
# Create a reply relationship between quoted posts and this new post
|
2013-05-23 12:09:06 -04:00
|
|
|
self.quoted_post_numbers.each do |p|
|
|
|
|
post = Post.where(topic_id: topic_id, post_number: p).first
|
|
|
|
create_reply_relationship_with(post)
|
2013-03-18 15:54:08 -04:00
|
|
|
end
|
|
|
|
end
|
|
|
|
|
2013-03-18 13:55:34 -04:00
|
|
|
# Enqueue post processing for this post
|
2013-02-05 14:16:51 -05:00
|
|
|
def trigger_post_process
|
2013-02-28 13:54:12 -05:00
|
|
|
args = { post_id: id }
|
|
|
|
args[:image_sizes] = image_sizes if image_sizes.present?
|
|
|
|
args[:invalidate_oneboxes] = true if invalidate_oneboxes.present?
|
2013-02-07 10:45:24 -05:00
|
|
|
Jobs.enqueue(:process_post, args)
|
2013-02-05 14:16:51 -05:00
|
|
|
end
|
2013-03-07 11:07:59 -05:00
|
|
|
|
2013-04-16 16:56:18 -04:00
|
|
|
def self.public_posts_count_per_day(since_days_ago=30)
|
|
|
|
public_posts.where('posts.created_at > ?', since_days_ago.days.ago).group('date(posts.created_at)').order('date(posts.created_at)').count
|
2013-04-03 13:25:52 -04:00
|
|
|
end
|
|
|
|
|
2013-04-16 16:56:18 -04:00
|
|
|
def self.private_messages_count_per_day(since_days_ago, topic_subtype)
|
|
|
|
private_posts.with_topic_subtype(topic_subtype).where('posts.created_at > ?', since_days_ago.days.ago).group('date(posts.created_at)').order('date(posts.created_at)').count
|
2013-03-07 11:07:59 -05:00
|
|
|
end
|
2013-05-17 12:15:21 -04:00
|
|
|
|
|
|
|
private
|
|
|
|
|
|
|
|
|
2013-05-22 15:45:31 -04:00
|
|
|
|
2013-05-22 15:38:45 -04:00
|
|
|
def parse_quote_into_arguments(quote)
|
|
|
|
return {} unless quote.present?
|
|
|
|
args = {}
|
|
|
|
quote.first.scan(/([a-z]+)\:(\d+)/).each do |arg|
|
|
|
|
args[arg[0].to_sym] = arg[1].to_i
|
|
|
|
end
|
|
|
|
args
|
|
|
|
end
|
2013-05-22 15:45:31 -04:00
|
|
|
|
2013-05-23 12:07:45 -04:00
|
|
|
def add_to_quoted_post_numbers(num)
|
|
|
|
return unless num.present?
|
|
|
|
self.quoted_post_numbers ||= []
|
|
|
|
self.quoted_post_numbers << num
|
|
|
|
end
|
2013-05-23 12:08:24 -04:00
|
|
|
|
|
|
|
def create_reply_relationship_with(post)
|
|
|
|
return if post.nil?
|
|
|
|
post_reply = post.post_replies.new(reply_id: id)
|
|
|
|
if post_reply.save
|
|
|
|
Post.update_all ['reply_count = reply_count + 1'], id: post.id
|
|
|
|
end
|
|
|
|
end
|
2013-02-05 14:16:51 -05:00
|
|
|
end
|
2013-05-23 22:48:32 -04:00
|
|
|
|
|
|
|
# == Schema Information
|
|
|
|
#
|
|
|
|
# Table name: posts
|
|
|
|
#
|
|
|
|
# id :integer not null, primary key
|
|
|
|
# user_id :integer not null
|
|
|
|
# topic_id :integer not null
|
|
|
|
# post_number :integer not null
|
|
|
|
# raw :text not null
|
|
|
|
# cooked :text not null
|
|
|
|
# created_at :datetime not null
|
|
|
|
# updated_at :datetime not null
|
|
|
|
# reply_to_post_number :integer
|
|
|
|
# cached_version :integer default(1), not null
|
|
|
|
# reply_count :integer default(0), not null
|
|
|
|
# quote_count :integer default(0), not null
|
|
|
|
# deleted_at :datetime
|
|
|
|
# off_topic_count :integer default(0), not null
|
|
|
|
# like_count :integer default(0), not null
|
|
|
|
# incoming_link_count :integer default(0), not null
|
|
|
|
# bookmark_count :integer default(0), not null
|
|
|
|
# avg_time :integer
|
|
|
|
# score :float
|
|
|
|
# reads :integer default(0), not null
|
|
|
|
# post_type :integer default(1), not null
|
|
|
|
# vote_count :integer default(0), not null
|
|
|
|
# sort_order :integer
|
|
|
|
# last_editor_id :integer
|
|
|
|
# hidden :boolean default(FALSE), not null
|
|
|
|
# hidden_reason_id :integer
|
|
|
|
# notify_moderators_count :integer default(0), not null
|
|
|
|
# spam_count :integer default(0), not null
|
|
|
|
# illegal_count :integer default(0), not null
|
|
|
|
# inappropriate_count :integer default(0), not null
|
|
|
|
# last_version_at :datetime not null
|
|
|
|
# user_deleted :boolean default(FALSE), not null
|
|
|
|
# reply_to_user_id :integer
|
|
|
|
# percent_rank :float default(1.0)
|
|
|
|
# notify_user_count :integer default(0), not null
|
|
|
|
#
|
|
|
|
# Indexes
|
|
|
|
#
|
|
|
|
# idx_posts_user_id_deleted_at (user_id)
|
|
|
|
# index_posts_on_reply_to_post_number (reply_to_post_number)
|
|
|
|
# index_posts_on_topic_id_and_post_number (topic_id,post_number) UNIQUE
|
|
|
|
#
|
|
|
|
|