Class: TopicLink
- Inherits:
-
ActiveRecord::Base
- Object
- ActiveRecord::Base
- TopicLink
- Defined in:
- app/models/topic_link.rb
Class Method Summary collapse
- .counts_for(guardian, topic, posts) ⇒ Object
- .crawl_link_title(topic_link_id) ⇒ Object
- .duplicate_lookup(topic) ⇒ Object
- .extract_from(post) ⇒ Object
- .max_domain_length ⇒ Object
- .max_url_length ⇒ Object
- .topic_map(guardian, topic_id) ⇒ Object
Instance Method Summary collapse
- #crawl_link_title ⇒ Object
-
#link_to_self ⇒ Object
Make sure a topic can’t link to itself.
Class Method Details
.counts_for(guardian, topic, posts) ⇒ Object
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# File 'app/models/topic_link.rb', line 71 def self.counts_for(guardian, topic, posts) return {} if posts.blank? # Sam: this is not tidy in AR and also happens to be a critical path # for topic view builder = DB.build( "SELECT l.post_id, l.url, l.clicks, COALESCE(t.title, l.title) AS title, l.internal, l.reflection, l.domain FROM topic_links l LEFT JOIN topics t ON t.id = l.link_topic_id LEFT JOIN categories AS c ON c.id = t.category_id /*left_join*/ /*where*/ ORDER BY reflection ASC, clicks DESC", ) builder.where("t.deleted_at IS NULL") builder.where( "COALESCE(t.archetype, 'regular') <> :archetype", archetype: Archetype., ) if guardian.authenticated? builder.left_join( "topic_users AS tu ON (t.id = tu.topic_id AND tu.user_id = #{guardian.user.id.to_i})", ) builder.where( "COALESCE(tu.notification_level,1) > :muted", muted: TopicUser.notification_levels[:muted], ) end # not certain if pluck is right, cause it may interfere with caching builder.where("l.post_id in (:post_ids)", post_ids: posts.map(&:id)) builder.secure_category(guardian.secure_category_ids) result = {} builder.query.each do |l| result[l.post_id] ||= [] result[l.post_id] << { url: l.url, clicks: l.clicks, title: l.title, internal: l.internal, reflection: l.reflection, } end result end |
.crawl_link_title(topic_link_id) ⇒ Object
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# File 'app/models/topic_link.rb', line 159 def self.crawl_link_title(topic_link_id) Jobs.enqueue(:crawl_topic_link, topic_link_id: topic_link_id) end |
.duplicate_lookup(topic) ⇒ Object
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# File 'app/models/topic_link.rb', line 167 def self.duplicate_lookup(topic) results = TopicLink .includes(:post, :user) .joins(:post, :user) .where("posts.id IS NOT NULL AND users.id IS NOT NULL") .where(topic_id: topic.id, reflection: false) .last(200) lookup = {} results.each do |tl| normalized = tl.url.downcase.sub(%r{\Ahttps?://}, "").sub(%r{/\z}, "") lookup[normalized] = { domain: tl.domain, username: tl.user.username_lower, posted_at: tl.post.created_at, post_number: tl.post.post_number, } end lookup end |
.extract_from(post) ⇒ Object
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# File 'app/models/topic_link.rb', line 128 def self.extract_from(post) return if post.blank? || post.whisper? || post.user_id.blank? || post.deleted_at.present? current_urls = [] reflected_ids = [] PrettyText .extract_links(post.cooked) .map do |u| uri = UrlHelper.relaxed_parse(u.url) [u, uri] end .reject { |_, p| p.nil? || "mailto" == p.scheme } .uniq { |_, p| p } .each do |link, parsed| TopicLink.transaction do begin url, reflected_id = self.ensure_entry_for(post, link, parsed) current_urls << url unless url.nil? reflected_ids << reflected_id unless reflected_id.nil? rescue URI::Error # if the URI is invalid, don't store it. rescue ActionController::RoutingError # If we can't find the route, no big deal end end end self.cleanup_entries(post, current_urls, reflected_ids) end |
.max_domain_length ⇒ Object
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# File 'app/models/topic_link.rb', line 6 def self.max_domain_length 100 end |
.max_url_length ⇒ Object
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# File 'app/models/topic_link.rb', line 10 def self.max_url_length 500 end |
.topic_map(guardian, topic_id) ⇒ Object
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# File 'app/models/topic_link.rb', line 37 def self.topic_map(guardian, topic_id) # Sam: complicated reports are really hard in AR builder = DB.build(<<~SQL) SELECT ftl.url, COALESCE(ft.title, ftl.title) AS title, ftl.link_topic_id, ftl.reflection, ftl.internal, ftl.domain, MIN(ftl.user_id) AS user_id, SUM(clicks) AS clicks FROM topic_links AS ftl LEFT JOIN topics AS ft ON ftl.link_topic_id = ft.id LEFT JOIN categories AS c ON c.id = ft.category_id /*where*/ GROUP BY ftl.url, ft.title, ftl.title, ftl.link_topic_id, ftl.reflection, ftl.internal, ftl.domain ORDER BY clicks DESC, count(*) DESC LIMIT 50 SQL builder.where("ftl.topic_id = :topic_id", topic_id: topic_id) builder.where("ft.deleted_at IS NULL") builder.where("ftl.extension IS NULL OR ftl.extension NOT IN ('png','jpg','gif')") builder.where( "COALESCE(ft.archetype, 'regular') <> :archetype", archetype: Archetype., ) builder.where("clicks > 0") builder.secure_category(guardian.secure_category_ids) builder.query end |
Instance Method Details
#crawl_link_title ⇒ Object
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# File 'app/models/topic_link.rb', line 163 def crawl_link_title TopicLink.crawl_link_title(id) end |
#link_to_self ⇒ Object
Make sure a topic can’t link to itself
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# File 'app/models/topic_link.rb', line 33 def link_to_self errors.add(:base, "can't link to the same topic") if (topic_id == link_topic_id) end |