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https://github.com/derf/travelynx
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regularly generate statistics in the background
This commit is contained in:
Daniel Friesel
parent
77ecd6d034
commit
a5ab4fa6a8
4 changed files with 109 additions and 26 deletions
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@ -1,4 +1,5 @@
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package Travelynx::Command::maintenance;
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# Copyright (C) 2020 Daniel Friesel
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#
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# SPDX-License-Identifier: MIT
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@ -136,6 +137,22 @@ sub run {
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$tx->commit;
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# Computing stats may take a while, but we've got all time in the
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# world here. This means users won't have to wait when loading their
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# own journey log.
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say 'Generating missing stats ...';
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for
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my $user ( $db->select( 'users', ['id'], { status => 1 } )->hashes->each )
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{
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$tx = $db->begin;
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$self->app->journeys->generate_missing_stats( uid => $user->{id} );
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$self->app->journeys->get_stats(
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uid => $user->{id},
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year => $now->year
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);
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$tx->commit;
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}
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# Add estimated polylines to journeys logged before 2020-01-28
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$tx = $db->begin;
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@ -288,19 +288,6 @@ sub run {
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$self->app->traewelling_api->checkin( %{$candidate},
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trip_id => $trip_id );
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}
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# Computing yearly stats may take a while, but we've got all time in the
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# world here. This means users won't have to wait when loading their
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# own by-year journey log.
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for my $user ( $db->select( 'users', 'id', { status => 1 } )->hashes->each )
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{
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$self->app->journeys->get_stats(
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uid => $user->{id},
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year => $now->year
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);
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}
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# TODO wait until all background jobs have terminated
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}
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1;
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@ -1,4 +1,5 @@
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package Travelynx::Model::JourneyStatsCache;
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# Copyright (C) 2020 Daniel Friesel
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#
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# SPDX-License-Identifier: MIT
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@ -33,8 +34,8 @@ sub add {
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);
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};
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if ( my $err = $@ ) {
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if ( $err =~ m{duplicate key value violates unique constraint} )
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{
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if ( $err =~ m{duplicate key value violates unique constraint} ) {
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# If a user opens the same history page several times in
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# short succession, there is a race condition where several
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# Mojolicious workers execute this helper, notice that there is
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@ -97,4 +98,25 @@ sub invalidate {
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);
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}
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sub get_yyyymm_having_stats {
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my ( $self, %opt ) = @_;
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my $uid = $opt{uid};
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my $db = $opt{db} // $self->{pg}->db;
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my $res = $db->select(
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'journey_stats',
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[ 'year', 'month' ],
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{ user_id => $uid },
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{ order_by => { -asc => [ 'year', 'month' ] } }
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);
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my @ret;
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for my $row ( $res->hashes->each ) {
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if ( $row->{month} != 0 ) {
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push( @ret, [ $row->{year}, $row->{month} ] );
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}
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}
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return @ret;
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}
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1;
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@ -763,6 +763,62 @@ sub get_months_for_year {
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return @ret;
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}
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sub get_yyyymm_having_journeys {
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my ( $self, %opt ) = @_;
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my $uid = $opt{uid};
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my $db = $opt{db} // $self->{pg}->db;
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my $res = $db->select(
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'journeys',
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"distinct to_char(real_departure, 'YYYY.MM') as yearmonth",
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{ user_id => $uid },
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{ order_by => { -asc => 'yearmonth' } }
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);
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my @ret;
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for my $row ( $res->hashes->each ) {
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push( @ret, [ split( qr{[.]}, $row->{yearmonth} ) ] );
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}
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return @ret;
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}
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sub generate_missing_stats {
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my ( $self, %opt ) = @_;
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my $uid = $opt{uid};
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my $db = $opt{db} // $self->{pg}->db;
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my @journey_months = $self->get_yyyymm_having_journeys(
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uid => $uid,
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db => $db
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);
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my @stats_months = $self->stats_cache->get_yyyymm_having_stats(
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uid => $uid,
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$db => $db
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);
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my $stats_index = 0;
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for my $journey_index ( 0 .. $#journey_months ) {
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if ( $stats_index < @stats_months
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and $journey_months[$journey_index][0]
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== $stats_months[$stats_index][0]
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and $journey_months[$journey_index][1]
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== $stats_months[$stats_index][1] )
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{
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$stats_index++;
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}
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else {
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my ( $year, $month ) = @{ $journey_months[$journey_index] };
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$self->get_stats(
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uid => $uid,
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db => $db,
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year => $year,
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month => $month,
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write_only => 1
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);
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}
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}
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}
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sub get_nav_months {
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my ( $self, %opt ) = @_;
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@ -1048,7 +1104,8 @@ sub get_stats {
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# checks out of a train or manually edits/adds a journey.
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if (
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my $stats = $self->stats_cache->get(
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not $opt{write_only}
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and my $stats = $self->stats_cache->get(
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uid => $uid,
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db => $db,
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year => $year,
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