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Bug 11998: Use Koha::Cache to cache sysprefs

At the moment, the sysprefs are only cache in the thread memory
executing the processus
When using Plack, that means we need to clear the syspref cache on each
page.
To avoid that, we can use Koha::Cache to cache the sysprefs correctly.

A big part of the authorship of this patch goes to Robin Sheat.

Test plan:
1/ Add/Update/Delete local use prefs
2/ Update pref values and confirm that the changes are correctly taken
into account

Signed-off-by: Chris <chrisc@catalyst.net.nz>

Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Tested with plack with syspref cache enabled, there is some time between setting the syspref and applying it, but it takes just one reload of page, it shouldn't be problem, should it?
Signed-off-by: Tomas Cohen Arazi <tomascohen@unc.edu.ar>

Signed-off-by: Jacek Ablewicz <abl@biblos.pk.edu.pl>
Tested with CGI and CGI + memcache; some small issues still remain,
but it would be better to deal with them in separate bug reports
if necessary

Signed-off-by: Brendan Gallagher brendan@bywatersolutions.com
new_12478_elasticsearch
Jonathan Druart 6 years ago
committed by Brendan Gallagher
parent
commit
9820f9dfbd
  1. 89
      C4/Context.pm
  2. 32
      Koha/Config/SysPref.pm
  3. 1
      admin/preferences.pl
  4. 61
      admin/systempreferences.pl
  5. 1
      misc/admin/koha-preferences
  6. 2
      svc/config/systempreferences
  7. 11
      t/db_dependent/Context.t
  8. 15
      t/db_dependent/sysprefs.t

89
C4/Context.pm

@ -100,6 +100,7 @@ BEGIN {
use Encode;
use ZOOM;
use XML::Simple;
use Koha::Cache;
use POSIX ();
use DateTime::TimeZone;
use Module::Load::Conditional qw(can_load);
@ -108,6 +109,7 @@ use Carp;
use C4::Boolean;
use C4::Debug;
use Koha;
use Koha::Config::SysPref;
use Koha::Config::SysPrefs;
=head1 NAME
@ -502,19 +504,18 @@ with this method.
=cut
# FIXME: running this under mod_perl will require a means of
# flushing the caching mechanism.
my %sysprefs;
my $syspref_cache = Koha::Cache->get_instance();
my $use_syspref_cache = 1;
sub preference {
my $self = shift;
my $var = shift; # The system preference to return
if ($use_syspref_cache && exists $sysprefs{lc $var}) {
return $sysprefs{lc $var};
}
$var = lc $var;
my $cached_var = $use_syspref_cache
? $syspref_cache->get_from_cache("syspref_$var")
: undef;
return $cached_var if defined $cached_var;
my $dbh = C4::Context->dbh or return 0;
@ -527,7 +528,7 @@ sub preference {
$value = $syspref ? $syspref->value() : undef;
}
$sysprefs{lc $var} = $value;
$syspref_cache->set_in_cache("syspref_$var", $value) if $use_syspref_cache;
return $value;
}
@ -550,6 +551,8 @@ default behavior.
sub enable_syspref_cache {
my ($self) = @_;
$use_syspref_cache = 1;
# We need to clear the cache to have it up-to-date
$self->clear_syspref_cache();
}
=head2 disable_syspref_cache
@ -578,43 +581,79 @@ will not be seen by this process.
=cut
sub clear_syspref_cache {
%sysprefs = ();
$syspref_cache->flush_all if $use_syspref_cache;
}
=head2 set_preference
C4::Context->set_preference( $variable, $value );
C4::Context->set_preference( $variable, $value, [ $explanation, $type, $options ] );
This updates a preference's value both in the systempreferences table and in
the sysprefs cache.
the sysprefs cache. If the optional parameters are provided, then the query
becomes a create. It won't update the parameters (except value) for an existing
preference.
=cut
sub set_preference {
my $self = shift;
my $var = lc(shift);
my $value = shift;
my ( $self, $variable, $value, $explanation, $type, $options ) = @_;
my $syspref = Koha::Config::SysPrefs->find( $var );
my $type = $syspref ? $syspref->type() : undef;
$variable = lc $variable;
$value = 0 if ( $type && $type eq 'YesNo' && $value eq '' );
my $syspref = Koha::Config::SysPrefs->find($variable);
$type =
$type ? $type
: $syspref ? $syspref->type
: undef;
# force explicit protocol on OPACBaseURL
if ($var eq 'opacbaseurl' && substr($value,0,4) !~ /http/) {
if ( $variable eq 'opacbaseurl' && substr( $value, 0, 4 ) !~ /http/ ) {
$value = 'http://' . $value;
}
if ($syspref) {
$syspref = $syspref->set( { value => $value } )->store();
}
else {
$syspref = Koha::Config::SysPref->new( { variable => $var, value => $value } )->store();
$syspref->set(
{ ( defined $value ? ( value => $value ) : () ),
( $explanation ? ( explanation => $explanation ) : () ),
( $type ? ( type => $type ) : () ),
( $options ? ( options => $options ) : () ),
}
)->store;
} else {
$syspref = Koha::Config::SysPref->new(
{ variable => $variable,
value => $value,
explanation => $explanation || undef,
type => $type,
options => $options || undef,
}
)->store();
}
if ($syspref) {
$sysprefs{$var} = $value;
$syspref_cache->set_in_cache( "syspref_$variable", $value )
if $use_syspref_cache;
return $syspref;
}
=head2 delete_preference
C4::Context->delete_preference( $variable );
This deletes a system preference from the database. Returns a true value on
success. Failure means there was an issue with the database, not that there
was no syspref of the name.
=cut
sub delete_preference {
my ( $self, $var ) = @_;
if ( Koha::Config::SysPrefs->find( $var )->delete ) {
$syspref_cache->clear_from_cache("syspref_$var") if $use_syspref_cache;
return 1;
}
return 0;
}
=head2 Zconn

32
Koha/Config/SysPref.pm

@ -23,6 +23,8 @@ use Carp;
use Koha::Database;
use C4::Log;
use base qw(Koha::Object);
=head1 NAME
@ -35,6 +37,36 @@ Koha::Config::SysPref - Koha System Preference Object class
=cut
=head3 store
=cut
sub store {
my ($self) = @_;
my $action = $self->in_storage ? 'MODIFY' : 'ADD';
C4::Log::logaction( 'SYSTEMPREFERENCE', $action, undef, $self->variable . ' | ' . $self->value );
return $self->SUPER::store($self);
}
=head3 delete
=cut
sub delete {
my ($self) = @_;
my $variable = $self->variable;
my $value = $self->value;
my $deleted = $self->SUPER::delete($self);
C4::Log::logaction( 'SYSTEMPREFERENCE', 'DELETE', undef, " $variable | $value" );
return $deleted;
}
=head3 type
=cut

1
admin/preferences.pl

@ -314,7 +314,6 @@ if ( $op eq 'save' ) {
my $value = join( ',', $input->param( $param ) );
C4::Context->set_preference( $pref, $value );
logaction( 'SYSTEMPREFERENCE', 'MODIFY', undef, $pref . " | " . $value );
}
}

61
admin/systempreferences.pl

@ -50,7 +50,6 @@ use C4::Context;
use C4::Koha;
use C4::Languages qw(getTranslatedLanguages);
use C4::ClassSource;
use C4::Log;
use C4::Output;
use YAML::Syck qw( Dump LoadFile );
@ -276,24 +275,8 @@ if ( $op eq 'update_and_reedit' ) {
); # we show only the TMPL_VAR names $op
}
}
my $dbh = C4::Context->dbh;
my $query = "select * from systempreferences where variable=?";
my $sth = $dbh->prepare($query);
$sth->execute( $input->param('variable') );
if ( $sth->rows ) {
unless ( C4::Context->config('demo') ) {
my $sth = $dbh->prepare("update systempreferences set value=?,explanation=?,type=?,options=? where variable=?");
$sth->execute( $value, $input->param('explanation'), $input->param('variable'), $input->param('preftype'), $input->param('prefoptions') );
logaction( 'SYSTEMPREFERENCE', 'MODIFY', undef, $input->param('variable') . " | " . $value );
}
} else {
unless ( C4::Context->config('demo') ) {
my $sth = $dbh->prepare("insert into systempreferences (variable,value,explanation) values (?,?,?,?,?)");
$sth->execute( $input->param('variable'), $input->param('value'), $input->param('explanation'), $input->param('preftype'), $input->param('prefoptions') );
logaction( 'SYSTEMPREFERENCE', 'ADD', undef, $input->param('variable') . " | " . $input->param('value') );
}
}
my $variable = $input->param('variable');
C4::Context->set_preference($variable, $value) unless C4::Context->config('demo');
}
################## ADD_FORM ##################################
@ -322,13 +305,14 @@ if ( $op eq 'add_form' ) {
################## ADD_VALIDATE ##################################
# called by add_form, used to insert/modify data in DB
} elsif ( $op eq 'add_validate' ) {
my $dbh = C4::Context->dbh;
my $sth = $dbh->prepare("select * from systempreferences where variable=?");
$sth->execute( $input->param('variable') );
# to handle multiple values
my $value;
my $variable = $input->param('variable');
my $expl = $input->param('explanation');
my $type = $input->param('preftype');
my $options = $input->param('prefoptions');
# handle multiple value strings (separated by ',')
my $params = $input->Vars;
if ( defined $params->{'value'} ) {
@ -345,49 +329,30 @@ if ( $op eq 'add_form' ) {
}
}
if ( $input->param('preftype') eq 'Upload' ) {
if ( $type eq 'Upload' ) {
my $lgtfh = $input->upload('value');
$value = join '', <$lgtfh>;
$value = encode_base64($value);
}
if ( $sth->rows ) {
unless ( C4::Context->config('demo') ) {
my $sth = $dbh->prepare("update systempreferences set value=?,explanation=?,type=?,options=? where variable=?");
$sth->execute( $value, $input->param('explanation'), $input->param('preftype'), $input->param('prefoptions'), $input->param('variable') );
logaction( 'SYSTEMPREFERENCE', 'MODIFY', undef, $input->param('variable') . " | " . $value );
}
} else {
unless ( C4::Context->config('demo') ) {
my $sth = $dbh->prepare("insert into systempreferences (variable,value,explanation,type,options) values (?,?,?,?,?)");
$sth->execute( $input->param('variable'), $value, $input->param('explanation'), $input->param('preftype'), $input->param('prefoptions') );
logaction( 'SYSTEMPREFERENCE', 'ADD', undef, $input->param('variable') . " | " . $value );
}
}
C4::Context->set_preference( $variable, $value, $expl, $type, $options )
unless C4::Context->config('demo');
print $input->redirect("/cgi-bin/koha/admin/systempreferences.pl?tab=");
exit;
################## DELETE_CONFIRM ##################################
# called by default form, used to confirm deletion of data in DB
} elsif ( $op eq 'delete_confirm' ) {
my $dbh = C4::Context->dbh;
my $sth = $dbh->prepare("select variable,value,explanation,type,options from systempreferences where variable=?");
$sth->execute($searchfield);
my $data = $sth->fetchrow_hashref;
my $value = C4::Context->preference($searchfield);
$template->param(
searchfield => $searchfield,
Tvalue => $data->{'value'},
Tvalue => $value,
);
# END $OP eq DELETE_CONFIRM
################## DELETE_CONFIRMED ##################################
# called by delete_confirm, used to effectively confirm deletion of data in DB
} elsif ( $op eq 'delete_confirmed' ) {
my $dbh = C4::Context->dbh;
my $sth = $dbh->prepare("delete from systempreferences where variable=?");
$sth->execute($searchfield);
my $logstring = $searchfield . " | " . $Tvalue;
logaction( 'SYSTEMPREFERENCE', 'DELETE', undef, $logstring );
C4::Context->delete_preference($searchfield);
# END $OP eq DELETE_CONFIRMED
################## DEFAULT ##################################
} else { # DEFAULT

1
misc/admin/koha-preferences

@ -82,7 +82,6 @@ sub _set_preference {
_debug( "Setting $preference to $value" );
C4::Context->set_preference( $preference, $value );
logaction( 'SYSTEMPREFERENCE', 'MODIFY', undef, $preference . " | " . $value );
}
sub GetPreferences {

2
svc/config/systempreferences

@ -64,7 +64,6 @@ sub set_preference {
unless ( C4::Context->config('demo') ) {
my $value = join( ',', $query->param( 'value' ) );
C4::Context->set_preference( $preference, $value );
logaction( 'SYSTEMPREFERENCE', 'MODIFY', undef, $preference . " | " . $value );
}
C4::Service->return_success( $response );
@ -98,7 +97,6 @@ sub set_preferences {
my $value = join( ',', $query->param( $param ) );
C4::Context->set_preference( $pref, $value );
logaction( 'SYSTEMPREFERENCE', 'MODIFY', undef, $pref . " | " . $value );
}
}

11
t/db_dependent/Context.t

@ -24,7 +24,6 @@ BEGIN {
ok($dbh = C4::Context->dbh(), 'Getting dbh from C4::Context');
$dbh->begin_work;
C4::Context->disable_syspref_cache();
C4::Context->set_preference('OPACBaseURL','junk');
C4::Context->clear_syspref_cache();
my $OPACBaseURL = C4::Context->preference('OPACBaseURL');
@ -99,9 +98,17 @@ $trace_read = q{};
C4::Context->enable_syspref_cache();
is(C4::Context->preference("SillyPreference"), 'thing3', "Retrieved syspref (value='thing3') successfully from cache");
is( $trace_read, q{}, 'Did not retrieve syspref from database');
isnt( $trace_read, q{}, 'The pref should be retrieved from the database if the cache has been enabled');
$trace_read = q{};
# FIXME This was added by Robin and does not pass anymore
# I don't understand why we should expect thing1 while thing3 is in the cache and in the DB
#$dbh->{mock_clear_history} = 1;
## This gives us the value that was cached on the first call, when the cache was active.
#is(C4::Context->preference("SillyPreference"), 'thing1', "Retrieved syspref (value='thing1') successfully from cache");
#$history = $dbh->{mock_all_history};
#is(scalar(@{$history}), 0, 'Did not retrieve syspref from database');
$silly_preference->set( { value => 'thing4' } )->store();
C4::Context->clear_syspref_cache();
is(C4::Context->preference("SillyPreference"), 'thing4', "Retrieved syspref (value='thing4') successfully after clearing cache");

15
t/db_dependent/sysprefs.t

@ -19,7 +19,7 @@
# along with Koha; if not, see <http://www.gnu.org/licenses>.
use Modern::Perl;
use Test::More tests => 5;
use Test::More tests => 8;
use C4::Context;
# Start transaction
@ -48,3 +48,16 @@ is( C4::Context->preference('IDoNotExist'), undef, 'Get a non-existent system pr
C4::Context->set_preference( 'IDoNotExist', 'NonExistent' );
is( C4::Context->preference('IDoNotExist'), 'NonExistent', 'Test creation of non-existent system preference' );
C4::Context->set_preference('testpreference', 'abc');
C4::Context->delete_preference('testpreference');
is(C4::Context->preference('testpreference'), undef, 'deleting preferences');
C4::Context->set_preference('testpreference', 'def');
# Delete from the database, it should still be in cache
$dbh->do("DELETE FROM systempreferences WHERE variable='testpreference'");
is(C4::Context->preference('testpreference'), 'def', 'caching preferences');
C4::Context->clear_syspref_cache();
is(C4::Context->preference('testpreference'), undef, 'clearing preference cache');
$dbh->rollback;

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