2 # Copyright 2002 Katipo Communications
4 # This file is part of Koha.
6 # Koha is free software; you can redistribute it and/or modify it
7 # under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 3 of the License, or
9 # (at your option) any later version.
11 # Koha is distributed in the hope that it will be useful, but
12 # WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with Koha; if not, see <http://www.gnu.org/licenses>.
21 use vars qw($VERSION $AUTOLOAD $context @context_stack $servers $memcached $ismemcached);
23 if ($ENV{'HTTP_USER_AGENT'}) {
25 # FIXME for future reference, CGI::Carp doc says
26 # "Note that fatalsToBrowser does not work with mod_perl version 2.0 and higher."
27 import CGI::Carp qw(fatalsToBrowser);
31 eval {C4::Context->dbh();};
36 $debug_level = C4::Context->preference("DebugLevel");
39 print q(<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
40 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
41 <html lang="en" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">
42 <head><title>Koha Error</title></head>
45 if ($debug_level eq "2"){
46 # debug 2 , print extra info too.
47 my %versions = get_versions();
49 # a little example table with various version info";
52 <p>The following fatal error has occurred:</p>
53 <pre><code>$msg</code></pre>
55 <tr><th>Apache</th><td> $versions{apacheVersion}</td></tr>
56 <tr><th>Koha</th><td> $versions{kohaVersion}</td></tr>
57 <tr><th>Koha DB</th><td> $versions{kohaDbVersion}</td></tr>
58 <tr><th>MySQL</th><td> $versions{mysqlVersion}</td></tr>
59 <tr><th>OS</th><td> $versions{osVersion}</td></tr>
60 <tr><th>Perl</th><td> $versions{perlVersion}</td></tr>
63 } elsif ($debug_level eq "1"){
66 <p>The following fatal error has occurred:</p>
67 <pre><code>$msg</code></pre>";
69 print "<p>production mode - trapped fatal error</p>";
71 print "</body></html>";
73 #CGI::Carp::set_message(\&handle_errors);
74 ## give a stack backtrace if KOHA_BACKTRACES is set
75 ## can't rely on DebugLevel for this, as we're not yet connected
76 if ($ENV{KOHA_BACKTRACES}) {
77 $main::SIG{__DIE__} = \&CGI::Carp::confess;
79 } # else there is no browser to send fatals to!
81 # Check if there are memcached servers set
82 $servers = $ENV{'MEMCACHED_SERVERS'};
84 # Load required libraries and create the memcached object
85 require Cache::Memcached;
86 $memcached = Cache::Memcached->new({
87 servers => [ $servers ],
89 compress_threshold => 10_000,
91 namespace => $ENV{'MEMCACHED_NAMESPACE'} || 'koha'
93 # Verify memcached available (set a variable and test the output)
94 $ismemcached = $memcached->set('ismemcached','1');
97 $VERSION = '3.07.00.049';
105 use DateTime::TimeZone;
106 use Module::Load::Conditional qw(can_load);
112 use Koha::Config::SysPref;
113 use Koha::Config::SysPrefs;
117 C4::Context - Maintain and manipulate the context of a Koha script
123 use C4::Context("/path/to/koha-conf.xml");
125 $config_value = C4::Context->config("config_variable");
127 $koha_preference = C4::Context->preference("preference");
129 $db_handle = C4::Context->dbh;
131 $Zconn = C4::Context->Zconn;
133 $stopwordhash = C4::Context->stopwords;
137 When a Koha script runs, it makes use of a certain number of things:
138 configuration settings in F</etc/koha/koha-conf.xml>, a connection to the Koha
139 databases, and so forth. These things make up the I<context> in which
142 This module takes care of setting up the context for a script:
143 figuring out which configuration file to load, and loading it, opening
144 a connection to the right database, and so forth.
146 Most scripts will only use one context. They can simply have
152 Other scripts may need to use several contexts. For instance, if a
153 library has two databases, one for a certain collection, and the other
154 for everything else, it might be necessary for a script to use two
155 different contexts to search both databases. Such scripts should use
156 the C<&set_context> and C<&restore_context> functions, below.
158 By default, C4::Context reads the configuration from
159 F</etc/koha/koha-conf.xml>. This may be overridden by setting the C<$KOHA_CONF>
160 environment variable to the pathname of a configuration file to use.
167 # In addition to what is said in the POD above, a Context object is a
168 # reference-to-hash with the following fields:
171 # A reference-to-hash whose keys and values are the
172 # configuration variables and values specified in the config
173 # file (/etc/koha/koha-conf.xml).
175 # A handle to the appropriate database for this context.
177 # Used by &set_dbh and &restore_dbh to hold other database
178 # handles for this context.
180 # A connection object for the Zebra server
182 # Koha's main configuration file koha-conf.xml
183 # is searched for according to this priority list:
185 # 1. Path supplied via use C4::Context '/path/to/koha-conf.xml'
186 # 2. Path supplied in KOHA_CONF environment variable.
187 # 3. Path supplied in INSTALLED_CONFIG_FNAME, as long
188 # as value has changed from its default of
189 # '__KOHA_CONF_DIR__/koha-conf.xml', as happens
190 # when Koha is installed in 'standard' or 'single'
192 # 4. Path supplied in CONFIG_FNAME.
194 # The first entry that refers to a readable file is used.
196 use constant CONFIG_FNAME => "/etc/koha/koha-conf.xml";
197 # Default config file, if none is specified
199 my $INSTALLED_CONFIG_FNAME = '__KOHA_CONF_DIR__/koha-conf.xml';
200 # path to config file set by installer
201 # __KOHA_CONF_DIR__ is set by rewrite-confg.PL
202 # when Koha is installed in 'standard' or 'single'
203 # mode. If Koha was installed in 'dev' mode,
204 # __KOHA_CONF_DIR__ is *not* rewritten; instead
205 # developers should set the KOHA_CONF environment variable
207 $context = undef; # Initially, no context is set
208 @context_stack = (); # Initially, no saved contexts
211 =head2 read_config_file
213 Reads the specified Koha config file.
215 Returns an object containing the configuration variables. The object's
216 structure is a bit complex to the uninitiated ... take a look at the
217 koha-conf.xml file as well as the XML::Simple documentation for details. Or,
218 here are a few examples that may give you what you need:
220 The simple elements nested within the <config> element:
222 my $pass = $koha->{'config'}->{'pass'};
224 The <listen> elements:
226 my $listen = $koha->{'listen'}->{'biblioserver'}->{'content'};
228 The elements nested within the <server> element:
230 my $ccl2rpn = $koha->{'server'}->{'biblioserver'}->{'cql2rpn'};
232 Returns undef in case of error.
236 sub read_config_file { # Pass argument naming config file to read
237 my $koha = XMLin(shift, keyattr => ['id'], forcearray => ['listen', 'server', 'serverinfo'], suppressempty => '');
240 $memcached->set('kohaconf',$koha);
243 return $koha; # Return value: ref-to-hash holding the configuration
248 Returns the value of the $ismemcached variable (0/1)
258 If $ismemcached is true, returns the $memcache variable.
259 Returns undef otherwise
273 my $dbd_driver_name = C4::Context::db_schema2dbi($scheme);
275 This routines translates a database type to part of the name
276 of the appropriate DBD driver to use when establishing a new
277 database connection. It recognizes 'mysql' and 'Pg'; if any
278 other scheme is supplied it defaults to 'mysql'.
283 my $scheme = shift // '';
284 return $scheme eq 'Pg' ? $scheme : 'mysql';
288 # Create the default context ($C4::Context::Context)
289 # the first time the module is called
290 # (a config file can be optionaly passed)
292 # default context already exists?
296 my ($pkg,$config_file) = @_ ;
297 my $new_ctx = __PACKAGE__->new($config_file);
298 return unless $new_ctx;
300 # if successfully loaded, use it by default
301 $new_ctx->set_context;
307 $context = new C4::Context;
308 $context = new C4::Context("/path/to/koha-conf.xml");
310 Allocates a new context. Initializes the context from the specified
311 file, which defaults to either the file given by the C<$KOHA_CONF>
312 environment variable, or F</etc/koha/koha-conf.xml>.
314 It saves the koha-conf.xml values in the declared memcached server(s)
315 if currently available and uses those values until them expire and
318 C<&new> does not set this context as the new default context; for
319 that, use C<&set_context>.
325 # 2004-08-10 A. Tarallo: Added check if the conf file is not empty
328 my $conf_fname = shift; # Config file to load
331 # check that the specified config file exists and is not empty
332 undef $conf_fname unless
333 (defined $conf_fname && -s $conf_fname);
334 # Figure out a good config file to load if none was specified.
335 if (!defined($conf_fname))
337 # If the $KOHA_CONF environment variable is set, use
338 # that. Otherwise, use the built-in default.
339 if (exists $ENV{"KOHA_CONF"} and $ENV{'KOHA_CONF'} and -s $ENV{"KOHA_CONF"}) {
340 $conf_fname = $ENV{"KOHA_CONF"};
341 } elsif ($INSTALLED_CONFIG_FNAME !~ /__KOHA_CONF_DIR/ and -s $INSTALLED_CONFIG_FNAME) {
342 # NOTE: be careful -- don't change __KOHA_CONF_DIR in the above
343 # regex to anything else -- don't want installer to rewrite it
344 $conf_fname = $INSTALLED_CONFIG_FNAME;
345 } elsif (-s CONFIG_FNAME) {
346 $conf_fname = CONFIG_FNAME;
348 warn "unable to locate Koha configuration file koha-conf.xml";
354 # retrieve from memcached
355 $self = $memcached->get('kohaconf');
356 if (not defined $self) {
357 # not in memcached yet
358 $self = read_config_file($conf_fname);
361 # non-memcached env, read from file
362 $self = read_config_file($conf_fname);
365 $self->{"config_file"} = $conf_fname;
366 warn "read_config_file($conf_fname) returned undef" if !defined($self->{"config"});
367 return if !defined($self->{"config"});
369 $self->{"Zconn"} = undef; # Zebra Connections
370 $self->{"stopwords"} = undef; # stopwords list
371 $self->{"marcfromkohafield"} = undef; # the hash with relations between koha table fields and MARC field/subfield
372 $self->{"userenv"} = undef; # User env
373 $self->{"activeuser"} = undef; # current active user
374 $self->{"shelves"} = undef;
375 $self->{tz} = undef; # local timezone object
378 $self->{db_driver} = db_scheme2dbi($self->config('db_scheme')); # cache database driver
384 $context = new C4::Context;
385 $context->set_context();
387 set_context C4::Context $context;
390 restore_context C4::Context;
392 In some cases, it might be necessary for a script to use multiple
393 contexts. C<&set_context> saves the current context on a stack, then
394 sets the context to C<$context>, which will be used in future
395 operations. To restore the previous context, use C<&restore_context>.
403 my $new_context; # The context to set
405 # Figure out whether this is a class or instance method call.
407 # We're going to make the assumption that control got here
408 # through valid means, i.e., that the caller used an instance
409 # or class method call, and that control got here through the
410 # usual inheritance mechanisms. The caller can, of course,
411 # break this assumption by playing silly buggers, but that's
412 # harder to do than doing it properly, and harder to check
414 if (ref($self) eq "")
416 # Class method. The new context is the next argument.
417 $new_context = shift;
419 # Instance method. The new context is $self.
420 $new_context = $self;
423 # Save the old context, if any, on the stack
424 push @context_stack, $context if defined($context);
426 # Set the new context
427 $context = $new_context;
430 =head2 restore_context
434 Restores the context set by C<&set_context>.
443 if ($#context_stack < 0)
446 die "Context stack underflow";
449 # Pop the old context and set it.
450 $context = pop @context_stack;
452 # FIXME - Should this return something, like maybe the context
453 # that was current when this was called?
458 $value = C4::Context->config("config_variable");
460 $value = C4::Context->config_variable;
462 Returns the value of a variable specified in the configuration file
463 from which the current context was created.
465 The second form is more compact, but of course may conflict with
466 method names. If there is a configuration variable called "new", then
467 C<C4::Config-E<gt>new> will not return it.
474 return if !defined($context->{$term});
475 # Presumably $self->{$term} might be
476 # undefined if the config file given to &new
477 # didn't exist, and the caller didn't bother
478 # to check the return value.
480 # Return the value of the requested config variable
481 return $context->{$term}->{$var};
485 return _common_config($_[1],'config');
488 return _common_config($_[1],'server');
491 return _common_config($_[1],'serverinfo');
496 $sys_preference = C4::Context->preference('some_variable');
498 Looks up the value of the given system preference in the
499 systempreferences table of the Koha database, and returns it. If the
500 variable is not set or does not exist, undef is returned.
502 In case of an error, this may return 0.
504 Note: It is impossible to tell the difference between system
505 preferences which do not exist, and those whose values are set to NULL
510 my $syspref_cache = Koha::Cache->get_instance();
511 my %syspref_L1_cache;
512 my $use_syspref_cache = 1;
515 my $var = shift; # The system preference to return
519 return $ENV{"OVERRIDE_SYSPREF_$var"}
520 if defined $ENV{"OVERRIDE_SYSPREF_$var"};
522 # Return the value if the var has already been accessed
523 if ($use_syspref_cache && exists $syspref_L1_cache{$var}) {
524 return $syspref_L1_cache{$var};
527 my $cached_var = $use_syspref_cache
528 ? $syspref_cache->get_from_cache("syspref_$var")
530 return $cached_var if defined $cached_var;
533 eval { $syspref = Koha::Config::SysPrefs->find( lc $var ) };
534 my $value = $syspref ? $syspref->value() : undef;
536 if ( $use_syspref_cache ) {
537 $syspref_cache->set_in_cache("syspref_$var", $value);
538 $syspref_L1_cache{$var} = $value;
543 sub boolean_preference {
545 my $var = shift; # The system preference to return
546 my $it = preference($self, $var);
547 return defined($it)? C4::Boolean::true_p($it): undef;
550 =head2 enable_syspref_cache
552 C4::Context->enable_syspref_cache();
554 Enable the in-memory syspref cache used by C4::Context. This is the
559 sub enable_syspref_cache {
561 $use_syspref_cache = 1;
562 # We need to clear the cache to have it up-to-date
563 $self->clear_syspref_cache();
566 =head2 disable_syspref_cache
568 C4::Context->disable_syspref_cache();
570 Disable the in-memory syspref cache used by C4::Context. This should be
571 used with Plack and other persistent environments.
575 sub disable_syspref_cache {
577 $use_syspref_cache = 0;
578 $self->clear_syspref_cache();
581 =head2 clear_syspref_cache
583 C4::Context->clear_syspref_cache();
585 cleans the internal cache of sysprefs. Please call this method if
586 you update the systempreferences table. Otherwise, your new changes
587 will not be seen by this process.
591 sub clear_syspref_cache {
592 return unless $use_syspref_cache;
593 $syspref_cache->flush_all;
594 clear_syspref_L1_cache()
597 sub clear_syspref_L1_cache {
598 %syspref_L1_cache = ();
601 =head2 set_preference
603 C4::Context->set_preference( $variable, $value, [ $explanation, $type, $options ] );
605 This updates a preference's value both in the systempreferences table and in
606 the sysprefs cache. If the optional parameters are provided, then the query
607 becomes a create. It won't update the parameters (except value) for an existing
613 my ( $self, $variable, $value, $explanation, $type, $options ) = @_;
615 $variable = lc $variable;
617 my $syspref = Koha::Config::SysPrefs->find($variable);
620 : $syspref ? $syspref->type
623 $value = 0 if ( $type && $type eq 'YesNo' && $value eq '' );
625 # force explicit protocol on OPACBaseURL
626 if ( $variable eq 'opacbaseurl' && substr( $value, 0, 4 ) !~ /http/ ) {
627 $value = 'http://' . $value;
632 { ( defined $value ? ( value => $value ) : () ),
633 ( $explanation ? ( explanation => $explanation ) : () ),
634 ( $type ? ( type => $type ) : () ),
635 ( $options ? ( options => $options ) : () ),
639 $syspref = Koha::Config::SysPref->new(
640 { variable => $variable,
642 explanation => $explanation || undef,
644 options => $options || undef,
649 if ( $use_syspref_cache ) {
650 $syspref_cache->set_in_cache( "syspref_$variable", $value );
651 $syspref_L1_cache{$variable} = $value;
657 =head2 delete_preference
659 C4::Context->delete_preference( $variable );
661 This deletes a system preference from the database. Returns a true value on
662 success. Failure means there was an issue with the database, not that there
663 was no syspref of the name.
667 sub delete_preference {
668 my ( $self, $var ) = @_;
670 if ( Koha::Config::SysPrefs->find( $var )->delete ) {
671 if ( $use_syspref_cache ) {
672 $syspref_cache->clear_from_cache("syspref_$var");
673 delete $syspref_L1_cache{$var};
683 $Zconn = C4::Context->Zconn
685 Returns a connection to the Zebra database
689 C<$server> one of the servers defined in the koha-conf.xml file
691 C<$async> whether this is a asynchronous connection
696 my ($self, $server, $async ) = @_;
697 my $cache_key = join ('::', (map { $_ // '' } ($server, $async )));
698 if ( (!defined($ENV{GATEWAY_INTERFACE})) && defined($context->{"Zconn"}->{$cache_key}) && (0 == $context->{"Zconn"}->{$cache_key}->errcode()) ) {
699 # if we are running the script from the commandline, lets try to use the caching
700 return $context->{"Zconn"}->{$cache_key};
702 $context->{"Zconn"}->{$cache_key}->destroy() if defined($context->{"Zconn"}->{$cache_key}); #destroy old connection before making a new one
703 $context->{"Zconn"}->{$cache_key} = &_new_Zconn( $server, $async );
704 return $context->{"Zconn"}->{$cache_key};
709 $context->{"Zconn"} = &_new_Zconn($server,$async);
711 Internal function. Creates a new database connection from the data given in the current context and returns it.
713 C<$server> one of the servers defined in the koha-conf.xml file
715 C<$async> whether this is a asynchronous connection
717 C<$auth> whether this connection has rw access (1) or just r access (0 or NULL)
722 my ( $server, $async ) = @_;
724 my $tried=0; # first attempt
725 my $Zconn; # connection object
730 $server //= "biblioserver";
732 if ( $server eq 'biblioserver' ) {
733 $index_mode = $context->{'config'}->{'zebra_bib_index_mode'} // 'dom';
734 } elsif ( $server eq 'authorityserver' ) {
735 $index_mode = $context->{'config'}->{'zebra_auth_index_mode'} // 'dom';
738 if ( $index_mode eq 'grs1' ) {
739 $elementSetName = 'F';
740 $syntax = ( $context->preference("marcflavour") eq 'UNIMARC' )
744 } else { # $index_mode eq 'dom'
746 $elementSetName = 'marcxml';
749 my $host = $context->{'listen'}->{$server}->{'content'};
750 my $user = $context->{"serverinfo"}->{$server}->{"user"};
751 my $password = $context->{"serverinfo"}->{$server}->{"password"};
754 my $o = new ZOOM::Options();
755 $o->option(user => $user) if $user && $password;
756 $o->option(password => $password) if $user && $password;
757 $o->option(async => 1) if $async;
758 $o->option(cqlfile=> $context->{"server"}->{$server}->{"cql2rpn"});
759 $o->option(cclfile=> $context->{"serverinfo"}->{$server}->{"ccl2rpn"});
760 $o->option(preferredRecordSyntax => $syntax);
761 $o->option(elementSetName => $elementSetName) if $elementSetName;
762 $o->option(databaseName => $context->{"config"}->{$server}||"biblios");
764 # create a new connection object
765 $Zconn= create ZOOM::Connection($o);
768 $Zconn->connect($host, 0);
770 # check for errors and warn
771 if ($Zconn->errcode() !=0) {
772 warn "something wrong with the connection: ". $Zconn->errmsg();
779 # Internal helper function (not a method!). This creates a new
780 # database connection from the data given in the current context, and
785 Koha::Database->schema({ new => 1 })->storage->dbh;
790 $dbh = C4::Context->dbh;
792 Returns a database handle connected to the Koha database for the
793 current context. If no connection has yet been made, this method
794 creates one, and connects to the database.
796 This database handle is cached for future use: if you call
797 C<C4::Context-E<gt>dbh> twice, you will get the same handle both
798 times. If you need a second database handle, use C<&new_dbh> and
799 possibly C<&set_dbh>.
810 unless ( $params->{new} ) {
811 return Koha::Database->schema->storage->dbh;
814 return Koha::Database->schema({ new => 1 })->storage->dbh;
819 $dbh = C4::Context->new_dbh;
821 Creates a new connection to the Koha database for the current context,
822 and returns the database handle (a C<DBI::db> object).
824 The handle is not saved anywhere: this method is strictly a
825 convenience function; the point is that it knows which database to
826 connect to so that the caller doesn't have to know.
835 return &dbh({ new => 1 });
840 $my_dbh = C4::Connect->new_dbh;
841 C4::Connect->set_dbh($my_dbh);
843 C4::Connect->restore_dbh;
845 C<&set_dbh> and C<&restore_dbh> work in a manner analogous to
846 C<&set_context> and C<&restore_context>.
848 C<&set_dbh> saves the current database handle on a stack, then sets
849 the current database handle to C<$my_dbh>.
851 C<$my_dbh> is assumed to be a good database handle.
861 # Save the current database handle on the handle stack.
862 # We assume that $new_dbh is all good: if the caller wants to
863 # screw himself by passing an invalid handle, that's fine by
865 push @{$context->{"dbh_stack"}}, $context->{"dbh"};
866 $context->{"dbh"} = $new_dbh;
871 C4::Context->restore_dbh;
873 Restores the database handle saved by an earlier call to
874 C<C4::Context-E<gt>set_dbh>.
883 if ($#{$context->{"dbh_stack"}} < 0)
886 die "DBH stack underflow";
889 # Pop the old database handle and set it.
890 $context->{"dbh"} = pop @{$context->{"dbh_stack"}};
892 # FIXME - If it is determined that restore_context should
893 # return something, then this function should, too.
898 $queryparser = C4::Context->queryparser
900 Returns a handle to an initialized Koha::QueryParser::Driver::PQF object.
906 unless (defined $context->{"queryparser"}) {
907 $context->{"queryparser"} = &_new_queryparser();
911 defined( $context->{"queryparser"} )
912 ? $context->{"queryparser"}->new
916 =head2 _new_queryparser
918 Internal helper function to create a new QueryParser object. QueryParser
919 is loaded dynamically so as to keep the lack of the QueryParser library from
920 getting in anyone's way.
924 sub _new_queryparser {
926 'OpenILS::QueryParser' => undef,
927 'Koha::QueryParser::Driver::PQF' => undef
929 if ( can_load( 'modules' => $qpmodules ) ) {
930 my $QParser = Koha::QueryParser::Driver::PQF->new();
931 my $config_file = $context->config('queryparser_config');
932 $config_file ||= '/etc/koha/searchengine/queryparser.yaml';
933 if ( $QParser->load_config($config_file) ) {
934 # Set 'keyword' as the default search class
935 $QParser->default_search_class('keyword');
936 # TODO: allow indexes to be configured in the database
943 =head2 marcfromkohafield
945 $dbh = C4::Context->marcfromkohafield;
947 Returns a hash with marcfromkohafield.
949 This hash is cached for future use: if you call
950 C<C4::Context-E<gt>marcfromkohafield> twice, you will get the same hash without real DB access
955 sub marcfromkohafield
959 # If the hash already exists, return it.
960 return $context->{"marcfromkohafield"} if defined($context->{"marcfromkohafield"});
962 # No hash. Create one.
963 $context->{"marcfromkohafield"} = &_new_marcfromkohafield();
965 return $context->{"marcfromkohafield"};
968 # _new_marcfromkohafield
969 # Internal helper function (not a method!). This creates a new
970 # hash with stopwords
971 sub _new_marcfromkohafield
973 my $dbh = C4::Context->dbh;
974 my $marcfromkohafield;
975 my $sth = $dbh->prepare("select frameworkcode,kohafield,tagfield,tagsubfield from marc_subfield_structure where kohafield > ''");
977 while (my ($frameworkcode,$kohafield,$tagfield,$tagsubfield) = $sth->fetchrow) {
979 $marcfromkohafield->{$frameworkcode}->{$kohafield} = [$tagfield,$tagsubfield];
981 return $marcfromkohafield;
986 $dbh = C4::Context->stopwords;
988 Returns a hash with stopwords.
990 This hash is cached for future use: if you call
991 C<C4::Context-E<gt>stopwords> twice, you will get the same hash without real DB access
1000 # If the hash already exists, return it.
1001 return $context->{"stopwords"} if defined($context->{"stopwords"});
1003 # No hash. Create one.
1004 $context->{"stopwords"} = &_new_stopwords();
1006 return $context->{"stopwords"};
1010 # Internal helper function (not a method!). This creates a new
1011 # hash with stopwords
1014 my $dbh = C4::Context->dbh;
1016 my $sth = $dbh->prepare("select word from stopwords");
1018 while (my $stopword = $sth->fetchrow_array) {
1019 $stopwordlist->{$stopword} = uc($stopword);
1021 $stopwordlist->{A} = "A" unless $stopwordlist;
1022 return $stopwordlist;
1027 C4::Context->userenv;
1029 Retrieves a hash for user environment variables.
1031 This hash shall be cached for future use: if you call
1032 C<C4::Context-E<gt>userenv> twice, you will get the same hash without real DB access
1038 my $var = $context->{"activeuser"};
1039 if (defined $var and defined $context->{"userenv"}->{$var}) {
1040 return $context->{"userenv"}->{$var};
1048 C4::Context->set_userenv($usernum, $userid, $usercnum,
1049 $userfirstname, $usersurname,
1050 $userbranch, $branchname, $userflags,
1051 $emailaddress, $branchprinter, $persona);
1053 Establish a hash of user environment variables.
1055 set_userenv is called in Auth.pm
1062 my ($usernum, $userid, $usercnum, $userfirstname, $usersurname, $userbranch, $branchname, $userflags, $emailaddress, $branchprinter, $persona, $shibboleth)=
1063 map { Encode::is_utf8( $_ ) ? $_ : Encode::decode('UTF-8', $_) } # CGI::Session doesn't handle utf-8, so we decode it here
1065 my $var=$context->{"activeuser"} || '';
1067 "number" => $usernum,
1069 "cardnumber" => $usercnum,
1070 "firstname" => $userfirstname,
1071 "surname" => $usersurname,
1072 #possibly a law problem
1073 "branch" => $userbranch,
1074 "branchname" => $branchname,
1075 "flags" => $userflags,
1076 "emailaddress" => $emailaddress,
1077 "branchprinter" => $branchprinter,
1078 "persona" => $persona,
1079 "shibboleth" => $shibboleth,
1081 $context->{userenv}->{$var} = $cell;
1085 sub set_shelves_userenv {
1086 my ($type, $shelves) = @_ or return;
1087 my $activeuser = $context->{activeuser} or return;
1088 $context->{userenv}->{$activeuser}->{barshelves} = $shelves if $type eq 'bar';
1089 $context->{userenv}->{$activeuser}->{pubshelves} = $shelves if $type eq 'pub';
1090 $context->{userenv}->{$activeuser}->{totshelves} = $shelves if $type eq 'tot';
1093 sub get_shelves_userenv {
1095 unless ($active = $context->{userenv}->{$context->{activeuser}}) {
1096 $debug and warn "get_shelves_userenv cannot retrieve context->{userenv}->{context->{activeuser}}";
1099 my $totshelves = $active->{totshelves} or undef;
1100 my $pubshelves = $active->{pubshelves} or undef;
1101 my $barshelves = $active->{barshelves} or undef;
1102 return ($totshelves, $pubshelves, $barshelves);
1107 C4::Context->_new_userenv($session); # FIXME: This calling style is wrong for what looks like an _internal function
1109 Builds a hash for user environment variables.
1111 This hash shall be cached for future use: if you call
1112 C<C4::Context-E<gt>userenv> twice, you will get the same hash without real DB access
1114 _new_userenv is called in Auth.pm
1121 shift; # Useless except it compensates for bad calling style
1122 my ($sessionID)= @_;
1123 $context->{"activeuser"}=$sessionID;
1126 =head2 _unset_userenv
1128 C4::Context->_unset_userenv;
1130 Destroys the hash for activeuser user environment variables.
1138 my ($sessionID)= @_;
1139 undef $context->{"activeuser"} if ($context->{"activeuser"} eq $sessionID);
1145 C4::Context->get_versions
1147 Gets various version info, for core Koha packages, Currently called from carp handle_errors() sub, to send to browser if 'DebugLevel' syspref is set to '2'.
1153 # A little example sub to show more debugging info for CGI::Carp
1156 $versions{kohaVersion} = Koha::version();
1157 $versions{kohaDbVersion} = C4::Context->preference('version');
1158 $versions{osVersion} = join(" ", POSIX::uname());
1159 $versions{perlVersion} = $];
1161 no warnings qw(exec); # suppress warnings if unable to find a program in $PATH
1162 $versions{mysqlVersion} = `mysql -V`;
1163 $versions{apacheVersion} = (`apache2ctl -v`)[0];
1164 $versions{apacheVersion} = `httpd -v` unless $versions{apacheVersion} ;
1165 $versions{apacheVersion} = `httpd2 -v` unless $versions{apacheVersion} ;
1166 $versions{apacheVersion} = `apache2 -v` unless $versions{apacheVersion} ;
1167 $versions{apacheVersion} = `/usr/sbin/apache2 -v` unless $versions{apacheVersion} ;
1177 Returns a DateTime::TimeZone object for the system timezone
1183 if (!defined $context->{tz}) {
1184 $context->{tz} = DateTime::TimeZone->new(name => 'local');
1186 return $context->{tz};
1190 =head2 IsSuperLibrarian
1192 C4::Context->IsSuperLibrarian();
1196 sub IsSuperLibrarian {
1197 my $userenv = C4::Context->userenv;
1199 unless ( $userenv and exists $userenv->{flags} ) {
1200 # If we reach this without a user environment,
1201 # assume that we're running from a command-line script,
1202 # and act as a superlibrarian.
1203 carp("C4::Context->userenv not defined!");
1207 return ($userenv->{flags}//0) % 2;
1212 Sets the current interface for later retrieval in any Perl module
1214 C4::Context->interface('opac');
1215 C4::Context->interface('intranet');
1216 my $interface = C4::Context->interface;
1221 my ($class, $interface) = @_;
1223 if (defined $interface) {
1224 $interface = lc $interface;
1225 if ($interface eq 'opac' || $interface eq 'intranet') {
1226 $context->{interface} = $interface;
1228 warn "invalid interface : '$interface'";
1232 return $context->{interface} // 'opac';
1242 Specifies the configuration file to read.
1250 Andrew Arensburger <arensb at ooblick dot com>
1252 Joshua Ferraro <jmf at liblime dot com>