discourse/lib/topic_query_sql.rb

61 lines
2.0 KiB
Ruby

# frozen_string_literal: true
#
# SQL fragments used when querying a list of topics.
#
module TopicQuerySQL
class << self
def lowest_date
"1900-01-01"
end
def order_by_category_sql(dir)
-"CASE WHEN categories.id = #{SiteSetting.uncategorized_category_id.to_i} THEN '' ELSE categories.name END #{dir}"
end
# If you've cleared the pin, use bumped_at, otherwise put it at the top
def order_with_pinned_sql
-"CASE
WHEN (COALESCE(topics.pinned_at, '#{lowest_date}') > COALESCE(tu.cleared_pinned_at, '#{lowest_date}'))
THEN topics.pinned_at + interval '9999 years'
ELSE topics.bumped_at
END DESC"
end
# If you've cleared the pin, use bumped_at, otherwise put it at the top
def order_nocategory_with_pinned_sql
-"CASE
WHEN topics.pinned_globally
AND (COALESCE(topics.pinned_at, '#{lowest_date}') > COALESCE(tu.cleared_pinned_at, '#{lowest_date}'))
THEN topics.pinned_at + interval '9999 years'
ELSE topics.bumped_at
END DESC"
end
def order_basic_bumped
"CASE WHEN (topics.pinned_at IS NOT NULL) THEN 0 ELSE 1 END, topics.bumped_at DESC"
end
def order_nocategory_basic_bumped
"CASE WHEN topics.pinned_globally AND (topics.pinned_at IS NOT NULL) THEN 0 ELSE 1 END, topics.bumped_at DESC"
end
def order_top_for(score)
-"COALESCE(top_topics.#{score}, 0) DESC, topics.bumped_at DESC"
end
def order_top_with_pinned_category_for(score)
# display pinned topics first
-"CASE WHEN (COALESCE(topics.pinned_at, '#{lowest_date}') > COALESCE(tu.cleared_pinned_at, '#{lowest_date}')) THEN 0 ELSE 1 END,
top_topics.#{score} DESC,
topics.bumped_at DESC"
end
def order_top_with_notification_levels(score)
-"COALESCE(topic_users.notification_level, 1) DESC, COALESCE(category_users.notification_level, 1) DESC, COALESCE(top_topics.#{score}, 0) DESC, topics.bumped_at DESC"
end
end
end