132 lines
4.7 KiB
Ruby
132 lines
4.7 KiB
Ruby
class CategoryList
|
|
include ActiveModel::Serialization
|
|
|
|
attr_accessor :categories,
|
|
:topic_users,
|
|
:uncategorized,
|
|
:draft,
|
|
:draft_key,
|
|
:draft_sequence
|
|
|
|
def initialize(guardian=nil)
|
|
@guardian = guardian || Guardian.new
|
|
|
|
find_relevant_topics
|
|
find_categories
|
|
|
|
prune_empty
|
|
add_uncategorized
|
|
find_user_data
|
|
end
|
|
|
|
private
|
|
|
|
# Retrieve a list of all the topics we'll need
|
|
def find_relevant_topics
|
|
@topics_by_category_id = {}
|
|
category_featured_topics = CategoryFeaturedTopic.select([:category_id, :topic_id]).order(:rank)
|
|
@topics_by_id = {}
|
|
|
|
@all_topics = Topic.where(id: category_featured_topics.map(&:topic_id))
|
|
@all_topics.each do |t|
|
|
@topics_by_id[t.id] = t
|
|
end
|
|
|
|
category_featured_topics.each do |cft|
|
|
@topics_by_category_id[cft.category_id] ||= []
|
|
@topics_by_category_id[cft.category_id] << cft.topic_id
|
|
end
|
|
end
|
|
|
|
# Find a list of all categories to associate the topics with
|
|
def find_categories
|
|
@categories = Category
|
|
.includes(:featured_users)
|
|
.secured(@guardian)
|
|
.order('COALESCE(categories.topics_week, 0) DESC')
|
|
.order('COALESCE(categories.topics_month, 0) DESC')
|
|
.order('COALESCE(categories.topics_year, 0) DESC')
|
|
|
|
@categories = @categories.to_a
|
|
@categories.each do |c|
|
|
topics_in_cat = @topics_by_category_id[c.id]
|
|
if topics_in_cat.present?
|
|
c.displayable_topics = []
|
|
topics_in_cat.each do |topic_id|
|
|
topic = @topics_by_id[topic_id]
|
|
if topic.present?
|
|
topic.category = c
|
|
c.displayable_topics << topic
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
# Add the uncategorized "magic" category
|
|
def add_uncategorized
|
|
# Support for uncategorized topics
|
|
uncategorized_topics = Topic
|
|
.listable_topics
|
|
.visible
|
|
.where(category_id: nil)
|
|
.topic_list_order
|
|
.limit(SiteSetting.category_featured_topics)
|
|
if uncategorized_topics.present?
|
|
|
|
totals = Topic.exec_sql("SELECT SUM(CASE WHEN created_at >= (CURRENT_TIMESTAMP - INTERVAL '1 WEEK') THEN 1 ELSE 0 END) as topics_week,
|
|
SUM(CASE WHEN created_at >= (CURRENT_TIMESTAMP - INTERVAL '1 MONTH') THEN 1 ELSE 0 END) as topics_month,
|
|
SUM(CASE WHEN created_at >= (CURRENT_TIMESTAMP - INTERVAL '1 YEAR') THEN 1 ELSE 0 END) as topics_year,
|
|
COUNT(*) AS topic_count
|
|
FROM topics
|
|
WHERE topics.visible
|
|
AND topics.deleted_at IS NULL
|
|
AND topics.category_id IS NULL
|
|
AND topics.archetype <> '#{Archetype.private_message}'").first
|
|
|
|
|
|
uncategorized = Category.new({name: SiteSetting.uncategorized_name,
|
|
slug: Slug.for(SiteSetting.uncategorized_name),
|
|
color: SiteSetting.uncategorized_color,
|
|
text_color: SiteSetting.uncategorized_text_color,
|
|
featured_topics: uncategorized_topics}.merge(totals))
|
|
|
|
# Find the appropriate place to insert it:
|
|
insert_at = nil
|
|
@categories.each_with_index do |c, idx|
|
|
if (uncategorized.topics_week || 0) > (c.topics_week || 0)
|
|
insert_at = idx
|
|
break
|
|
end
|
|
end
|
|
|
|
@categories.insert(insert_at || @categories.size, uncategorized)
|
|
end
|
|
|
|
if uncategorized.present?
|
|
@all_topics ||= []
|
|
uncategorized.displayable_topics = uncategorized_topics
|
|
@all_topics << uncategorized_topics
|
|
@all_topics.flatten!
|
|
end
|
|
end
|
|
|
|
# Remove any empty topics unless we can create them (so we can see the controls)
|
|
def prune_empty
|
|
unless @guardian.can_create?(Category)
|
|
# Remove categories with no featured topics unless we have the ability to edit one
|
|
@categories.delete_if { |c| c.displayable_topics.blank? && c.description.nil? }
|
|
end
|
|
end
|
|
|
|
# Get forum topic user records if appropriate
|
|
def find_user_data
|
|
if @guardian.current_user && @all_topics.present?
|
|
topic_lookup = TopicUser.lookup_for(@guardian.current_user, @all_topics)
|
|
|
|
# Attach some data for serialization to each topic
|
|
@all_topics.each { |ft| ft.user_data = topic_lookup[ft.id] }
|
|
end
|
|
end
|
|
end
|