Class: TopicQuery
- Inherits:
-
Object
- Object
- TopicQuery
- Includes:
- PrivateMessageLists
- Defined in:
- lib/topic_query.rb,
lib/topic_query/private_message_lists.rb
Overview
Helps us find topics. Returns a TopicList object containing the topics found.
Defined Under Namespace
Modules: PrivateMessageLists
Constant Summary collapse
- PG_MAX_INT =
2_147_483_647
- DEFAULT_PER_PAGE_COUNT =
30
- SORTABLE_MAPPING =
Maps ‘order` to a columns in `topics`
{ "likes" => "like_count", "op_likes" => "op_likes", "views" => "views", "posts" => "posts_count", "activity" => "bumped_at", "posters" => "participant_count", "category" => "category_id", "created" => "created_at", }
Instance Attribute Summary collapse
-
#guardian ⇒ Object
Returns the value of attribute guardian.
-
#options ⇒ Object
Returns the value of attribute options.
-
#user ⇒ Object
Returns the value of attribute user.
Class Method Summary collapse
- .add_custom_filter(key, &blk) ⇒ Object
- .apply_custom_filters(results, topic_query) ⇒ Object
- .new_filter(list, treat_as_new_topic_start_date: nil, treat_as_new_topic_clause_sql: nil) ⇒ Object
- .public_valid_options ⇒ Object
- .remove_custom_filter(key) ⇒ Object
-
.tracked_filter(list, user_id) ⇒ Object
Any changes here will need to be reflected in ‘lib/topic-list-tracked-filter.js` for the `isTrackedTopic` function on the client side.
- .unread_filter(list, whisperer: false) ⇒ Object
- .valid_options ⇒ Object
- .validate?(option, value) ⇒ Boolean
- .validators ⇒ Object
Instance Method Summary collapse
- #create_list(filter, options = {}, topics = nil) ⇒ Object
- #get_pm_params(topic) ⇒ Object
-
#initialize(user = nil, options = {}) ⇒ TopicQuery
constructor
A new instance of TopicQuery.
- #joined_topic_user(list = nil) ⇒ Object
- #latest_results(options = {}) ⇒ Object
- #list_bookmarks ⇒ Object
- #list_category_topic_ids(category) ⇒ Object
- #list_filter ⇒ Object
- #list_group_topics(group) ⇒ Object
- #list_hot ⇒ Object
-
#list_latest ⇒ Object
The latest view of topics.
- #list_new ⇒ Object
- #list_new_in_category(category) ⇒ Object
- #list_posted ⇒ Object
- #list_read ⇒ Object
- #list_related_for(topic, pm_params: nil) ⇒ Object
-
#list_suggested_for(topic, pm_params: nil, include_random: true) ⇒ Object
Return a list of suggested topics for a topic The include_random param was added so plugins can generate a suggested topics list without the random topics.
- #list_top_for(period) ⇒ Object
- #list_topics_by(user) ⇒ Object
- #list_unread ⇒ Object
- #list_unseen ⇒ Object
- #new_and_unread_results(options = {}) ⇒ Object
- #new_results(options = {}) ⇒ Object
- #prioritize_pinned_topics(topics, options) ⇒ Object
- #unread_results(options = {}) ⇒ Object
- #unseen_results(options = {}) ⇒ Object
Methods included from PrivateMessageLists
#filter_private_message_new, #filter_private_messages_unread, #list_private_messages, #list_private_messages_archive, #list_private_messages_direct_and_groups, #list_private_messages_group, #list_private_messages_group_archive, #list_private_messages_group_new, #list_private_messages_group_unread, #list_private_messages_new, #list_private_messages_sent, #list_private_messages_tag, #list_private_messages_unread, #list_private_messages_warnings, #private_messages_for
Constructor Details
#initialize(user = nil, options = {}) ⇒ TopicQuery
Returns a new instance of TopicQuery.
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# File 'lib/topic_query.rb', line 141 def initialize(user = nil, = {}) .assert_valid_keys(TopicQuery.) @options = .dup @user = user @guardian = [:guardian] || Guardian.new(@user) end |
Instance Attribute Details
#guardian ⇒ Object
Returns the value of attribute guardian.
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# File 'lib/topic_query.rb', line 118 def guardian @guardian end |
#options ⇒ Object
Returns the value of attribute options.
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# File 'lib/topic_query.rb', line 118 def @options end |
#user ⇒ Object
Returns the value of attribute user.
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# File 'lib/topic_query.rb', line 118 def user @user end |
Class Method Details
.add_custom_filter(key, &blk) ⇒ Object
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# File 'lib/topic_query.rb', line 120 def self.add_custom_filter(key, &blk) @custom_filters ||= {} << key << key @custom_filters[key] = blk end |
.apply_custom_filters(results, topic_query) ⇒ Object
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# File 'lib/topic_query.rb', line 134 def self.apply_custom_filters(results, topic_query) if @custom_filters @custom_filters.each { |key, filter| results = filter.call(results, topic_query) } end results end |
.new_filter(list, treat_as_new_topic_start_date: nil, treat_as_new_topic_clause_sql: nil) ⇒ Object
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# File 'lib/topic_query.rb', line 429 def self.new_filter(list, treat_as_new_topic_start_date: nil, treat_as_new_topic_clause_sql: nil) if treat_as_new_topic_start_date list = list.where("topics.created_at >= :created_at", created_at: treat_as_new_topic_start_date) else list = list.where("topics.created_at >= #{treat_as_new_topic_clause_sql}") end list.where("tu.last_read_post_number IS NULL").where( "COALESCE(tu.notification_level, :tracking) >= :tracking", tracking: TopicUser.notification_levels[:tracking], ) end |
.public_valid_options ⇒ Object
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# File 'lib/topic_query.rb', line 58 def self. # For these to work in Ember, add them to `controllers/discovery/list.js` @public_valid_options ||= %i[ page before bumped_before topic_ids category order ascending min_posts max_posts status filter state search q f subset group_name tags match_all_tags no_subcategories no_tags exclude_tag ] end |
.remove_custom_filter(key) ⇒ Object
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# File 'lib/topic_query.rb', line 127 def self.remove_custom_filter(key) @custom_filters.delete(key) .delete(key) .delete(key) @custom_filters = nil if @custom_filters.length == 0 end |
.tracked_filter(list, user_id) ⇒ Object
Any changes here will need to be reflected in ‘lib/topic-list-tracked-filter.js` for the `isTrackedTopic` function on the client side. The `f=tracked` query param is not heavily used so we do not want to be querying for a topic’s tracked status by default. Instead, the client will handle the filtering when the ‘f=tracked` query params is present.
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# File 'lib/topic_query.rb', line 456 def self.tracked_filter(list, user_id) tracked_category_ids_sql = <<~SQL SELECT cd.category_id FROM category_users cd WHERE cd.user_id = :user_id AND cd.notification_level >= :tracking SQL has_sub_sub_categories = SiteSetting.max_category_nesting == 3 sql = +<<~SQL topics.category_id IN ( SELECT c.id FROM categories c #{has_sub_sub_categories ? "LEFT JOIN categories parent_categories ON parent_categories.id = c.parent_category_id" : ""} WHERE (c.id IN (#{tracked_category_ids_sql})) OR c.parent_category_id IN (#{tracked_category_ids_sql}) #{has_sub_sub_categories ? "OR (parent_categories.id IS NOT NULL AND parent_categories.parent_category_id IN (#{tracked_category_ids_sql}))" : ""} ) SQL sql << <<~SQL if SiteSetting.tagging_enabled OR topics.id IN ( SELECT tt.topic_id FROM topic_tags tt WHERE tt.tag_id IN ( SELECT tu.tag_id FROM tag_users tu WHERE tu.user_id = :user_id AND tu.notification_level >= :tracking ) ) SQL list.where(sql, user_id: user_id, tracking: NotificationLevels.all[:tracking]) end |
.unread_filter(list, whisperer: false) ⇒ Object
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# File 'lib/topic_query.rb', line 443 def self.unread_filter(list, whisperer: false) col_name = whisperer ? "highest_staff_post_number" : "highest_post_number" list.where("tu.last_read_post_number < topics.#{col_name}").where( "COALESCE(tu.notification_level, :regular) >= :tracking", regular: TopicUser.notification_levels[:regular], tracking: TopicUser.notification_levels[:tracking], ) end |
.valid_options ⇒ Object
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# File 'lib/topic_query.rb', line 86 def self. @valid_options ||= + %i[ except_topic_ids limit page per_page visible guardian no_definitions destination_category_id include_all_pms include_pms ] end |
.validate?(option, value) ⇒ Boolean
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# File 'lib/topic_query.rb', line 50 def self.validate?(option, value) if fn = validators[option.to_sym] fn.call(value) else true end end |
.validators ⇒ Object
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# File 'lib/topic_query.rb', line 14 def self.validators @validators ||= begin int = lambda { |x| Integer === x || (String === x && x.match?(/\A-?[0-9]+\z/)) } zero_up_to_max_int = lambda { |x| int.call(x) && x.to_i.between?(0, PG_MAX_INT) } array_or_string = lambda { |x| Array === x || String === x } string = lambda { |x| String === x } true_or_false = lambda { |x| x == true || x == false || x == "true" || x == "false" } { page: zero_up_to_max_int, before: zero_up_to_max_int, bumped_before: zero_up_to_max_int, topic_ids: array_or_string, category: string, order: string, ascending: true_or_false, min_posts: zero_up_to_max_int, max_posts: zero_up_to_max_int, status: string, filter: string, state: string, search: string, q: string, f: string, subset: string, group_name: string, tags: array_or_string, match_all_tags: true_or_false, no_subcategories: true_or_false, no_tags: true_or_false, exclude_tag: string, } end end |
Instance Method Details
#create_list(filter, options = {}, topics = nil) ⇒ Object
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# File 'lib/topic_query.rb', line 519 def create_list(filter, = {}, topics = nil) [:filter] ||= filter topics ||= default_results() topics = yield(topics) if block_given? topics = DiscoursePluginRegistry.apply_modifier(:topic_query_create_list_topics, topics, , self) = .merge(@options) apply_pinning = filter != :private_messages apply_pinning &&= %w[activity default].include?([:order] || "activity") apply_pinning &&= ![:unordered] || [:prioritize_pinned] topics = prioritize_pinned_topics(topics, ) if apply_pinning topics = topics.to_a if [:preload_posters] user_ids = [] topics.each do |ft| user_ids << ft.user_id << ft.last_post_user_id << ft.featured_user_ids << ft.allowed_user_ids end user_lookup = UserLookup.new(user_ids) # memoize for loop so we don't keep looking these up translations = TopicPostersSummary.translations topics.each do |t| t.posters = t.posters_summary(user_lookup: user_lookup, translations: translations) end end topics.each do |t| if filter == :private_messages t.allowed_user_ids = t.allowed_users.map { |u| u.id } t.allowed_group_ids = t.allowed_groups.map { |g| g.id } else t.allowed_user_ids = [] t.allowed_group_ids = [] end end list = TopicList.new(filter, @user, topics, .merge(@options)) list.per_page = [:per_page] || per_page_setting list end |
#get_pm_params(topic) ⇒ Object
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# File 'lib/topic_query.rb', line 154 def get_pm_params(topic) if topic. my_group_ids = topic .topic_allowed_groups .joins( " LEFT JOIN group_users gu ON topic_allowed_groups.group_id = gu.group_id AND gu.user_id = #{@user.id.to_i} ", ) .where("gu.group_id IS NOT NULL") .pluck(:group_id) target_group_ids = topic.topic_allowed_groups.pluck(:group_id) target_users = topic.topic_allowed_users if my_group_ids.present? # strip out users in groups you already belong to target_users = target_users.joins( "LEFT JOIN group_users gu ON gu.user_id = topic_allowed_users.user_id AND #{DB.sql_fragment("gu.group_id IN (?)", my_group_ids)}", ).where("gu.group_id IS NULL") end target_user_ids = target_users.where("NOT topic_allowed_users.user_id = ?", @user.id).pluck(:user_id) { topic: topic, my_group_ids: my_group_ids, target_group_ids: target_group_ids, target_user_ids: target_user_ids, } end end |
#joined_topic_user(list = nil) ⇒ Object
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# File 'lib/topic_query.rb', line 148 def joined_topic_user(list = nil) (list || Topic).joins( "LEFT OUTER JOIN topic_users AS tu ON (topics.id = tu.topic_id AND tu.user_id = #{@user.id.to_i})", ) end |
#latest_results(options = {}) ⇒ Object
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# File 'lib/topic_query.rb', line 568 def latest_results( = {}) result = default_results() result = remove_muted(result, @user, ) result = apply_shared_drafts(result, get_category_id([:category]), ) # plugins can remove topics here: self.class.results_filter_callbacks.each do |filter_callback| result = filter_callback.call(:latest, result, @user, ) end result end |
#list_bookmarks ⇒ Object
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# File 'lib/topic_query.rb', line 355 def list_bookmarks create_list(:bookmarks) { |l| l.where("tu.bookmarked") } end |
#list_category_topic_ids(category) ⇒ Object
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# File 'lib/topic_query.rb', line 410 def list_category_topic_ids(category) query = default_results(category: category.id) pinned_ids = query .where("topics.pinned_at IS NOT NULL AND topics.category_id = ?", category.id) .limit(nil) .order("pinned_at DESC") .pluck(:id) non_pinned_ids = query.where("topics.pinned_at IS NULL OR topics.category_id <> ?", category.id).pluck(:id) (pinned_ids + non_pinned_ids) end |
#list_filter ⇒ Object
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# File 'lib/topic_query.rb', line 302 def list_filter topics_filter = TopicsFilter.new( guardian: @guardian, scope: latest_results(include_muted: false, skip_ordering: true), ) results = topics_filter.filter_from_query_string(@options[:q]) if !topics_filter.topic_notification_levels.include?(NotificationLevels.all[:muted]) results = remove_muted_topics(results, @user) end results = apply_ordering(results) if results.order_values.empty? create_list(:filter, {}, results) end |
#list_group_topics(group) ⇒ Object
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# File 'lib/topic_query.rb', line 396 def list_group_topics(group) list = default_results.where( " topics.user_id IN ( SELECT user_id FROM group_users gu WHERE gu.group_id = ? ) ", group.id.to_i, ) create_list(:group_topics, {}, list) end |
#list_hot ⇒ Object
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# File 'lib/topic_query.rb', line 359 def list_hot create_list(:hot, unordered: true, prioritize_pinned: true) do |topics| topics = remove_muted_topics(topics, user) topics = remove_muted_categories(topics, user, exclude: [:category]) TopicQuery.(topics, user, ) topics.joins("JOIN topic_hot_scores on topics.id = topic_hot_scores.topic_id").order( "topic_hot_scores.score DESC", ) end end |
#list_latest ⇒ Object
The latest view of topics
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# File 'lib/topic_query.rb', line 298 def list_latest create_list(:latest, {}, latest_results) end |
#list_new ⇒ Object
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# File 'lib/topic_query.rb', line 326 def list_new if @user&.new_new_view_enabled? list = case @options[:subset] when "topics" new_results when "replies" unread_results else new_and_unread_results end create_list(:new, { unordered: true }, list) else create_list(:new, { unordered: true }, new_results) end end |
#list_new_in_category(category) ⇒ Object
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# File 'lib/topic_query.rb', line 423 def list_new_in_category(category) create_list(:new_in_category, unordered: true, category: category.id) do |list| list.by_newest.limit(25) end end |
#list_posted ⇒ Object
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# File 'lib/topic_query.rb', line 351 def list_posted create_list(:posted) { |l| l.where("tu.posted") } end |
#list_read ⇒ Object
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# File 'lib/topic_query.rb', line 320 def list_read create_list(:read, unordered: true) do |topics| topics.where("tu.last_visited_at IS NOT NULL").order("tu.last_visited_at DESC") end end |
#list_related_for(topic, pm_params: nil) ⇒ Object
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# File 'lib/topic_query.rb', line 193 def (topic, pm_params: nil) return if !topic. return if @user.blank? return if !@user.in_any_groups?(SiteSetting.) builder = SuggestedTopicsBuilder.new(topic) pm_params = pm_params || get_pm_params(topic) if pm_params[:my_group_ids].present? builder.add_results( ( pm_params.merge( count: [6, builder.results_left].max, exclude: builder.excluded_topic_ids, ), ), ) else builder.add_results( ( pm_params.merge( count: [6, builder.results_left].max, exclude: builder.excluded_topic_ids, ), ), ) end params = { unordered: true } params[:preload_posters] = true create_list(:suggested, params, builder.results) end |
#list_suggested_for(topic, pm_params: nil, include_random: true) ⇒ Object
Return a list of suggested topics for a topic The include_random param was added so plugins can generate a suggested topics list without the random topics
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# File 'lib/topic_query.rb', line 229 def list_suggested_for(topic, pm_params: nil, include_random: true) # Don't suggest messages unless we have a user, and private messages are # enabled. if topic. && (@user.blank? || !@user.in_any_groups?(SiteSetting.)) return end builder = SuggestedTopicsBuilder.new(topic) pm_params = pm_params || get_pm_params(topic) if DiscoursePluginRegistry.list_suggested_for_providers.any? DiscoursePluginRegistry.list_suggested_for_providers.each do |provider| suggested = provider.call(topic, pm_params, self) builder.add_results(suggested[:result]) if suggested && !suggested[:result].blank? end end # When logged in we start with different results if @user if topic. unless builder.full? builder.add_results((pm_params.merge(count: builder.results_left))) end unless builder.full? builder.add_results((pm_params.merge(count: builder.results_left))) end else if @user.new_new_view_enabled? builder.add_results( new_and_unread_results( topic:, per_page: builder.results_left, max_age: SiteSetting.suggested_topics_unread_max_days_old, ), ) else builder.add_results( unread_results( topic: topic, per_page: builder.results_left, max_age: SiteSetting.suggested_topics_unread_max_days_old, ), :high, ) unless builder.full? builder.add_results(new_results(topic: topic, per_page: builder.category_results_left)) end end end end if !topic. if include_random && !builder.full? builder.add_results( random_suggested(topic, builder.results_left, builder.excluded_topic_ids), ) end end params = { unordered: true } params[:preload_posters] = true if topic. create_list(:suggested, params, builder.results) end |
#list_top_for(period) ⇒ Object
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# File 'lib/topic_query.rb', line 370 def list_top_for(period) score_column = TopTopic.score_column_for_period(period) create_list(:top, unordered: true) do |topics| topics = remove_muted_categories(topics, @user) topics = topics.joins(:top_topic).where("top_topics.#{score_column} > 0") if period == :yearly && @user.try(:trust_level) == TrustLevel[0] topics.order(<<~SQL) CASE WHEN ( COALESCE(topics.pinned_at, '1900-01-01') > COALESCE(tu.cleared_pinned_at, '1900-01-01') ) THEN 0 ELSE 1 END, top_topics.#{score_column} DESC, topics.bumped_at DESC SQL else topics.order(<<~SQL) COALESCE(top_topics.#{score_column}, 0) DESC, topics.bumped_at DESC SQL end end end |
#list_topics_by(user) ⇒ Object
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# File 'lib/topic_query.rb', line 391 def list_topics_by(user) @options[:filtered_to_user] = user.id create_list(:user_topics) { |topics| topics.where(user_id: user.id) } end |
#list_unread ⇒ Object
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# File 'lib/topic_query.rb', line 343 def list_unread create_list(:unread, { unordered: true }, unread_results) end |
#list_unseen ⇒ Object
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# File 'lib/topic_query.rb', line 347 def list_unseen create_list(:unseen, { unordered: true }, unseen_results) end |
#new_and_unread_results(options = {}) ⇒ Object
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# File 'lib/topic_query.rb', line 629 def new_and_unread_results( = {}) base = default_results(.reverse_merge(unordered: true)) new_results = TopicQuery.new_filter( base, treat_as_new_topic_start_date: @user.user_option.treat_as_new_topic_start_date, ) new_results = remove_muted(new_results, @user, ) new_results = remove_dismissed(new_results, @user) unread_results = apply_max_age_limit(TopicQuery.unread_filter(base, whisperer: @user&.whisperer?), ) base.joins_values.concat(new_results.joins_values, unread_results.joins_values) base.joins_values.uniq! results = base.merge(new_results.or(unread_results)) results = results.order("CASE WHEN topics.user_id = tu.user_id THEN 1 ELSE 2 END") suggested_ordering(results, ) end |
#new_results(options = {}) ⇒ Object
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# File 'lib/topic_query.rb', line 611 def new_results( = {}) # TODO does this make sense or should it be ordered on created_at # it is ordering on bumped_at now result = TopicQuery.new_filter( default_results(.reverse_merge(unordered: true)), treat_as_new_topic_start_date: @user.user_option.treat_as_new_topic_start_date, ) result = remove_muted(result, @user, ) result = remove_dismissed(result, @user) self.class.results_filter_callbacks.each do |filter_callback| result = filter_callback.call(:new, result, @user, ) end suggested_ordering(result, ) end |
#prioritize_pinned_topics(topics, options) ⇒ Object
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# File 'lib/topic_query.rb', line 489 def prioritize_pinned_topics(topics, ) pinned_clause = if [:category_id] +"topics.category_id = #{[:category_id].to_i} AND" else +"pinned_globally AND " end pinned_clause << " pinned_at IS NOT NULL " if @user pinned_clause << " AND (topics.pinned_at > tu.cleared_pinned_at OR tu.cleared_pinned_at IS NULL)" end unpinned_topics = topics.where("NOT ( #{pinned_clause} )") pinned_topics = topics.dup.offset(nil).where(pinned_clause).reorder(pinned_at: :desc) per_page = [:per_page] || per_page_setting limit = per_page unless [:limit] == false page = [:page].to_i if page == 0 (pinned_topics + unpinned_topics)[0...limit] if limit else offset = (page * per_page) - pinned_topics.length offset = 0 if offset <= 0 unpinned_topics.offset(offset).to_a end end |
#unread_results(options = {}) ⇒ Object
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# File 'lib/topic_query.rb', line 595 def unread_results( = {}) result = TopicQuery.unread_filter( default_results(.reverse_merge(unordered: true)), whisperer: @user&.whisperer?, ).order("CASE WHEN topics.user_id = tu.user_id THEN 1 ELSE 2 END") result = apply_max_age_limit(result, ) self.class.results_filter_callbacks.each do |filter_callback| result = filter_callback.call(:unread, result, @user, ) end suggested_ordering(result, ) end |
#unseen_results(options = {}) ⇒ Object
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# File 'lib/topic_query.rb', line 581 def unseen_results( = {}) result = default_results() result = unseen_filter(result, @user.first_seen_at, @user.whisperer?) if @user result = remove_muted(result, @user, ) result = apply_shared_drafts(result, get_category_id([:category]), ) # plugins can remove topics here: self.class.results_filter_callbacks.each do |filter_callback| result = filter_callback.call(:latest, result, @user, ) end result end |