Fix sorting of subscriptions with 'latest_only'

This commit is contained in:
Omar Roth 2019-02-18 11:29:57 -06:00
parent 421ad21b40
commit 4933cd46d7

View file

@ -1798,6 +1798,8 @@ get "/feed/subscriptions" do |env|
view_name = "subscriptions_#{sha256(user.email)[0..7]}" view_name = "subscriptions_#{sha256(user.email)[0..7]}"
if preferences.notifications_only && !notifications.empty? if preferences.notifications_only && !notifications.empty?
# Only show notifications
args = arg_array(notifications) args = arg_array(notifications)
notifications = PG_DB.query_all("SELECT * FROM channel_videos WHERE id IN (#{args}) notifications = PG_DB.query_all("SELECT * FROM channel_videos WHERE id IN (#{args})
@ -1819,27 +1821,38 @@ get "/feed/subscriptions" do |env|
else else
if preferences.latest_only if preferences.latest_only
if preferences.unseen_only if preferences.unseen_only
# Show latest video from a channel that a user hasn't watched
# "unseen_only" isn't really correct here, more accurate would be "unwatched_only"
videos = PG_DB.query_all("SELECT DISTINCT ON (ucid) * FROM #{view_name} WHERE \ videos = PG_DB.query_all("SELECT DISTINCT ON (ucid) * FROM #{view_name} WHERE \
NOT id = ANY (VALUES #{user.watched.map { |id| %(('#{id}')) }.join(",")}) \ NOT id = ANY (VALUES #{user.watched.map { |id| %(('#{id}')) }.join(",")}) \
ORDER BY ucid, published #{sort}", as: ChannelVideo) ORDER BY ucid, published #{sort}", as: ChannelVideo)
else else
# Show latest video from each channel
videos = PG_DB.query_all("SELECT DISTINCT ON (ucid) * FROM #{view_name} \ videos = PG_DB.query_all("SELECT DISTINCT ON (ucid) * FROM #{view_name} \
ORDER BY ucid, published #{sort}", as: ChannelVideo) ORDER BY ucid, published", as: ChannelVideo)
end end
videos.sort_by! { |video| video.published }.reverse! videos.sort_by! { |video| video.published }.reverse!
else else
if preferences.unseen_only if preferences.unseen_only
# Only show unwatched
videos = PG_DB.query_all("SELECT * FROM #{view_name} WHERE \ videos = PG_DB.query_all("SELECT * FROM #{view_name} WHERE \
NOT id = ANY (VALUES #{user.watched.map { |id| %(('#{id}')) }.join(",")}) \ NOT id = ANY (VALUES #{user.watched.map { |id| %(('#{id}')) }.join(",")}) \
ORDER BY published #{sort} LIMIT $1 OFFSET $2", limit, offset, as: ChannelVideo) ORDER BY published #{sort} LIMIT $1 OFFSET $2", limit, offset, as: ChannelVideo)
else else
# Sort subscriptions as normal
videos = PG_DB.query_all("SELECT * FROM #{view_name} \ videos = PG_DB.query_all("SELECT * FROM #{view_name} \
ORDER BY published #{sort} LIMIT $1 OFFSET $2", limit, offset, as: ChannelVideo) ORDER BY published #{sort} LIMIT $1 OFFSET $2", limit, offset, as: ChannelVideo)
end end
end end
case preferences.sort case preferences.sort
when "published - reverse"
videos.sort_by! { |video| video.published }
when "alphabetically" when "alphabetically"
videos.sort_by! { |video| video.title } videos.sort_by! { |video| video.title }
when "alphabetically - reverse" when "alphabetically - reverse"
@ -1850,7 +1863,6 @@ get "/feed/subscriptions" do |env|
videos.sort_by! { |video| video.author }.reverse! videos.sort_by! { |video| video.author }.reverse!
end end
# TODO: Add option to disable picking out notifications from regular feed
notifications = PG_DB.query_one("SELECT notifications FROM users WHERE email = $1", user.email, notifications = PG_DB.query_one("SELECT notifications FROM users WHERE email = $1", user.email,
as: Array(String)) as: Array(String))
@ -1862,6 +1874,12 @@ get "/feed/subscriptions" do |env|
videos = videos[0..max_results] videos = videos[0..max_results]
end end
# Clear user's notifications and set updated to the current time.
# "updated" here is used for delivering new notifications, so if
# we know a user has looked at their feed e.g. in the past 10 minutes,
# they've already seen a video posted 20 minutes ago, and don't need
# to be notified.
PG_DB.exec("UPDATE users SET notifications = $1, updated = $2 WHERE email = $3", [] of String, Time.now, PG_DB.exec("UPDATE users SET notifications = $1, updated = $2 WHERE email = $3", [] of String, Time.now,
user.email) user.email)
user.notifications = [] of String user.notifications = [] of String