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::SysPrefs;
116 C4::Context - Maintain and manipulate the context of a Koha script
122 use C4::Context("/path/to/koha-conf.xml");
124 $config_value = C4::Context->config("config_variable");
126 $koha_preference = C4::Context->preference("preference");
128 $db_handle = C4::Context->dbh;
130 $Zconn = C4::Context->Zconn;
132 $stopwordhash = C4::Context->stopwords;
136 When a Koha script runs, it makes use of a certain number of things:
137 configuration settings in F</etc/koha/koha-conf.xml>, a connection to the Koha
138 databases, and so forth. These things make up the I<context> in which
141 This module takes care of setting up the context for a script:
142 figuring out which configuration file to load, and loading it, opening
143 a connection to the right database, and so forth.
145 Most scripts will only use one context. They can simply have
151 Other scripts may need to use several contexts. For instance, if a
152 library has two databases, one for a certain collection, and the other
153 for everything else, it might be necessary for a script to use two
154 different contexts to search both databases. Such scripts should use
155 the C<&set_context> and C<&restore_context> functions, below.
157 By default, C4::Context reads the configuration from
158 F</etc/koha/koha-conf.xml>. This may be overridden by setting the C<$KOHA_CONF>
159 environment variable to the pathname of a configuration file to use.
166 # In addition to what is said in the POD above, a Context object is a
167 # reference-to-hash with the following fields:
170 # A reference-to-hash whose keys and values are the
171 # configuration variables and values specified in the config
172 # file (/etc/koha/koha-conf.xml).
174 # A handle to the appropriate database for this context.
176 # Used by &set_dbh and &restore_dbh to hold other database
177 # handles for this context.
179 # A connection object for the Zebra server
181 # Koha's main configuration file koha-conf.xml
182 # is searched for according to this priority list:
184 # 1. Path supplied via use C4::Context '/path/to/koha-conf.xml'
185 # 2. Path supplied in KOHA_CONF environment variable.
186 # 3. Path supplied in INSTALLED_CONFIG_FNAME, as long
187 # as value has changed from its default of
188 # '__KOHA_CONF_DIR__/koha-conf.xml', as happens
189 # when Koha is installed in 'standard' or 'single'
191 # 4. Path supplied in CONFIG_FNAME.
193 # The first entry that refers to a readable file is used.
195 use constant CONFIG_FNAME => "/etc/koha/koha-conf.xml";
196 # Default config file, if none is specified
198 my $INSTALLED_CONFIG_FNAME = '__KOHA_CONF_DIR__/koha-conf.xml';
199 # path to config file set by installer
200 # __KOHA_CONF_DIR__ is set by rewrite-confg.PL
201 # when Koha is installed in 'standard' or 'single'
202 # mode. If Koha was installed in 'dev' mode,
203 # __KOHA_CONF_DIR__ is *not* rewritten; instead
204 # developers should set the KOHA_CONF environment variable
206 $context = undef; # Initially, no context is set
207 @context_stack = (); # Initially, no saved contexts
210 =head2 read_config_file
212 Reads the specified Koha config file.
214 Returns an object containing the configuration variables. The object's
215 structure is a bit complex to the uninitiated ... take a look at the
216 koha-conf.xml file as well as the XML::Simple documentation for details. Or,
217 here are a few examples that may give you what you need:
219 The simple elements nested within the <config> element:
221 my $pass = $koha->{'config'}->{'pass'};
223 The <listen> elements:
225 my $listen = $koha->{'listen'}->{'biblioserver'}->{'content'};
227 The elements nested within the <server> element:
229 my $ccl2rpn = $koha->{'server'}->{'biblioserver'}->{'cql2rpn'};
231 Returns undef in case of error.
235 sub read_config_file { # Pass argument naming config file to read
236 my $koha = XMLin(shift, keyattr => ['id'], forcearray => ['listen', 'server', 'serverinfo'], suppressempty => '');
239 $memcached->set('kohaconf',$koha);
242 return $koha; # Return value: ref-to-hash holding the configuration
247 Returns the value of the $ismemcached variable (0/1)
257 If $ismemcached is true, returns the $memcache variable.
258 Returns undef otherwise
272 my $dbd_driver_name = C4::Context::db_schema2dbi($scheme);
274 This routines translates a database type to part of the name
275 of the appropriate DBD driver to use when establishing a new
276 database connection. It recognizes 'mysql' and 'Pg'; if any
277 other scheme is supplied it defaults to 'mysql'.
282 my $scheme = shift // '';
283 return $scheme eq 'Pg' ? $scheme : 'mysql';
287 # Create the default context ($C4::Context::Context)
288 # the first time the module is called
289 # (a config file can be optionaly passed)
291 # default context allready exists?
295 my ($pkg,$config_file) = @_ ;
296 my $new_ctx = __PACKAGE__->new($config_file);
297 return unless $new_ctx;
299 # if successfully loaded, use it by default
300 $new_ctx->set_context;
306 $context = new C4::Context;
307 $context = new C4::Context("/path/to/koha-conf.xml");
309 Allocates a new context. Initializes the context from the specified
310 file, which defaults to either the file given by the C<$KOHA_CONF>
311 environment variable, or F</etc/koha/koha-conf.xml>.
313 It saves the koha-conf.xml values in the declared memcached server(s)
314 if currently available and uses those values until them expire and
317 C<&new> does not set this context as the new default context; for
318 that, use C<&set_context>.
324 # 2004-08-10 A. Tarallo: Added check if the conf file is not empty
327 my $conf_fname = shift; # Config file to load
330 # check that the specified config file exists and is not empty
331 undef $conf_fname unless
332 (defined $conf_fname && -s $conf_fname);
333 # Figure out a good config file to load if none was specified.
334 if (!defined($conf_fname))
336 # If the $KOHA_CONF environment variable is set, use
337 # that. Otherwise, use the built-in default.
338 if (exists $ENV{"KOHA_CONF"} and $ENV{'KOHA_CONF'} and -s $ENV{"KOHA_CONF"}) {
339 $conf_fname = $ENV{"KOHA_CONF"};
340 } elsif ($INSTALLED_CONFIG_FNAME !~ /__KOHA_CONF_DIR/ and -s $INSTALLED_CONFIG_FNAME) {
341 # NOTE: be careful -- don't change __KOHA_CONF_DIR in the above
342 # regex to anything else -- don't want installer to rewrite it
343 $conf_fname = $INSTALLED_CONFIG_FNAME;
344 } elsif (-s CONFIG_FNAME) {
345 $conf_fname = CONFIG_FNAME;
347 warn "unable to locate Koha configuration file koha-conf.xml";
353 # retreive from memcached
354 $self = $memcached->get('kohaconf');
355 if (not defined $self) {
356 # not in memcached yet
357 $self = read_config_file($conf_fname);
360 # non-memcached env, read from file
361 $self = read_config_file($conf_fname);
364 $self->{"config_file"} = $conf_fname;
365 warn "read_config_file($conf_fname) returned undef" if !defined($self->{"config"});
366 return if !defined($self->{"config"});
368 $self->{"dbh"} = undef; # Database handle
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 # FIXME: running this under mod_perl will require a means of
511 # flushing the caching mechanism.
514 my $use_syspref_cache = 1;
518 my $var = shift; # The system preference to return
520 if ($use_syspref_cache && exists $sysprefs{lc $var}) {
521 return $sysprefs{lc $var};
524 my $dbh = C4::Context->dbh or return 0;
527 if ( defined $ENV{"OVERRIDE_SYSPREF_$var"} ) {
528 $value = $ENV{"OVERRIDE_SYSPREF_$var"};
530 my $syspref = Koha::Config::SysPrefs->find( lc $var );
531 $value = $syspref ? $syspref->value() : undef;
534 $sysprefs{lc $var} = $value;
538 sub boolean_preference {
540 my $var = shift; # The system preference to return
541 my $it = preference($self, $var);
542 return defined($it)? C4::Boolean::true_p($it): undef;
545 =head2 enable_syspref_cache
547 C4::Context->enable_syspref_cache();
549 Enable the in-memory syspref cache used by C4::Context. This is the
554 sub enable_syspref_cache {
556 $use_syspref_cache = 1;
559 =head2 disable_syspref_cache
561 C4::Context->disable_syspref_cache();
563 Disable the in-memory syspref cache used by C4::Context. This should be
564 used with Plack and other persistent environments.
568 sub disable_syspref_cache {
570 $use_syspref_cache = 0;
571 $self->clear_syspref_cache();
574 =head2 clear_syspref_cache
576 C4::Context->clear_syspref_cache();
578 cleans the internal cache of sysprefs. Please call this method if
579 you update the systempreferences table. Otherwise, your new changes
580 will not be seen by this process.
584 sub clear_syspref_cache {
588 =head2 set_preference
590 C4::Context->set_preference( $variable, $value );
592 This updates a preference's value both in the systempreferences table and in
602 my $syspref = Koha::Config::SysPrefs->find( $var );
603 my $type = $syspref ? $syspref->type() : undef;
605 $value = 0 if ( $type && $type eq 'YesNo' && $value eq '' );
608 $syspref = $syspref->set( { value => $value } )->store();
611 $syspref = Koha::Config::SysPref->new( { variable => $var, value => $value } )->store();
615 $sysprefs{$var} = $value;
620 # This implements C4::Config->foo, and simply returns
621 # C4::Context->config("foo"), as described in the documentation for
624 # FIXME - Perhaps this should be extended to check &config first, and
625 # then &preference if that fails. OTOH, AUTOLOAD could lead to crappy
626 # code, so it'd probably be best to delete it altogether so as not to
627 # encourage people to use it.
632 $AUTOLOAD =~ s/.*:://; # Chop off the package name,
633 # leaving only the function name.
634 return $self->config($AUTOLOAD);
639 $Zconn = C4::Context->Zconn
641 Returns a connection to the Zebra database
645 C<$server> one of the servers defined in the koha-conf.xml file
647 C<$async> whether this is a asynchronous connection
652 my ($self, $server, $async ) = @_;
653 my $cache_key = join ('::', (map { $_ // '' } ($server, $async )));
654 if ( (!defined($ENV{GATEWAY_INTERFACE})) && defined($context->{"Zconn"}->{$cache_key}) && (0 == $context->{"Zconn"}->{$cache_key}->errcode()) ) {
655 # if we are running the script from the commandline, lets try to use the caching
656 return $context->{"Zconn"}->{$cache_key};
658 $context->{"Zconn"}->{$cache_key}->destroy() if defined($context->{"Zconn"}->{$cache_key}); #destroy old connection before making a new one
659 $context->{"Zconn"}->{$cache_key} = &_new_Zconn( $server, $async );
660 return $context->{"Zconn"}->{$cache_key};
665 $context->{"Zconn"} = &_new_Zconn($server,$async);
667 Internal function. Creates a new database connection from the data given in the current context and returns it.
669 C<$server> one of the servers defined in the koha-conf.xml file
671 C<$async> whether this is a asynchronous connection
673 C<$auth> whether this connection has rw access (1) or just r access (0 or NULL)
678 my ( $server, $async ) = @_;
680 my $tried=0; # first attempt
681 my $Zconn; # connection object
686 $server //= "biblioserver";
688 if ( $server eq 'biblioserver' ) {
689 $index_mode = $context->{'config'}->{'zebra_bib_index_mode'} // 'dom';
690 } elsif ( $server eq 'authorityserver' ) {
691 $index_mode = $context->{'config'}->{'zebra_auth_index_mode'} // 'dom';
694 if ( $index_mode eq 'grs1' ) {
695 $elementSetName = 'F';
696 $syntax = ( $context->preference("marcflavour") eq 'UNIMARC' )
700 } else { # $index_mode eq 'dom'
702 $elementSetName = 'marcxml';
705 my $host = $context->{'listen'}->{$server}->{'content'};
706 my $user = $context->{"serverinfo"}->{$server}->{"user"};
707 my $password = $context->{"serverinfo"}->{$server}->{"password"};
710 my $o = new ZOOM::Options();
711 $o->option(user => $user) if $user && $password;
712 $o->option(password => $password) if $user && $password;
713 $o->option(async => 1) if $async;
714 $o->option(cqlfile=> $context->{"server"}->{$server}->{"cql2rpn"});
715 $o->option(cclfile=> $context->{"serverinfo"}->{$server}->{"ccl2rpn"});
716 $o->option(preferredRecordSyntax => $syntax);
717 $o->option(elementSetName => $elementSetName) if $elementSetName;
718 $o->option(databaseName => $context->{"config"}->{$server}||"biblios");
720 # create a new connection object
721 $Zconn= create ZOOM::Connection($o);
724 $Zconn->connect($host, 0);
726 # check for errors and warn
727 if ($Zconn->errcode() !=0) {
728 warn "something wrong with the connection: ". $Zconn->errmsg();
735 # Internal helper function (not a method!). This creates a new
736 # database connection from the data given in the current context, and
742 ## correct name for db_scheme
743 my $db_driver = $context->{db_driver};
745 my $db_name = $context->config("database");
746 my $db_host = $context->config("hostname");
747 my $db_port = $context->config("port") || '';
748 my $db_user = $context->config("user");
749 my $db_passwd = $context->config("pass");
750 # MJR added or die here, as we can't work without dbh
751 my $dbh = DBIx::Connector->connect(
752 "dbi:$db_driver:dbname=$db_name;host=$db_host;port=$db_port",
753 $db_user, $db_passwd,
755 'RaiseError' => $ENV{DEBUG} ? 1 : 0
759 # Check for the existence of a systempreference table; if we don't have this, we don't
760 # have a valid database and should not set RaiseError in order to allow the installer
761 # to run; installer will not run otherwise since we raise all db errors
764 local $dbh->{PrintError} = 0;
765 local $dbh->{RaiseError} = 1;
766 $dbh->do(qq{SELECT * FROM systempreferences WHERE 1 = 0 });
770 $dbh->{RaiseError} = 0;
773 if ( $db_driver eq 'mysql' ) {
774 $dbh->{mysql_auto_reconnect} = 1;
778 if ( $db_driver eq 'mysql' ) {
779 # Koha 3.0 is utf-8, so force utf8 communication between mySQL and koha, whatever the mysql default config.
780 # this is better than modifying my.cnf (and forcing all communications to be in utf8)
781 $dbh->{'mysql_enable_utf8'}=1; #enable
782 $dbh->do("set NAMES 'utf8'");
783 ($tz) and $dbh->do(qq(SET time_zone = "$tz"));
785 elsif ( $db_driver eq 'Pg' ) {
786 $dbh->do( "set client_encoding = 'UTF8';" );
787 ($tz) and $dbh->do(qq(SET TIME ZONE = "$tz"));
794 $dbh = C4::Context->dbh;
796 Returns a database handle connected to the Koha database for the
797 current context. If no connection has yet been made, this method
798 creates one, and connects to the database.
800 This database handle is cached for future use: if you call
801 C<C4::Context-E<gt>dbh> twice, you will get the same handle both
802 times. If you need a second database handle, use C<&new_dbh> and
803 possibly C<&set_dbh>.
814 unless ( $params->{new} ) {
815 if ( defined($context->{db_driver}) && $context->{db_driver} eq 'mysql' && $context->{"dbh"} ) {
816 return $context->{"dbh"};
817 } elsif ( defined($context->{"dbh"}) && $context->{"dbh"}->ping() ) {
818 return $context->{"dbh"};
822 # No database handle or it died . Create one.
823 $context->{"dbh"} = &_new_dbh();
825 return $context->{"dbh"};
830 $dbh = C4::Context->new_dbh;
832 Creates a new connection to the Koha database for the current context,
833 and returns the database handle (a C<DBI::db> object).
835 The handle is not saved anywhere: this method is strictly a
836 convenience function; the point is that it knows which database to
837 connect to so that the caller doesn't have to know.
851 $my_dbh = C4::Connect->new_dbh;
852 C4::Connect->set_dbh($my_dbh);
854 C4::Connect->restore_dbh;
856 C<&set_dbh> and C<&restore_dbh> work in a manner analogous to
857 C<&set_context> and C<&restore_context>.
859 C<&set_dbh> saves the current database handle on a stack, then sets
860 the current database handle to C<$my_dbh>.
862 C<$my_dbh> is assumed to be a good database handle.
872 # Save the current database handle on the handle stack.
873 # We assume that $new_dbh is all good: if the caller wants to
874 # screw himself by passing an invalid handle, that's fine by
876 push @{$context->{"dbh_stack"}}, $context->{"dbh"};
877 $context->{"dbh"} = $new_dbh;
882 C4::Context->restore_dbh;
884 Restores the database handle saved by an earlier call to
885 C<C4::Context-E<gt>set_dbh>.
894 if ($#{$context->{"dbh_stack"}} < 0)
897 die "DBH stack underflow";
900 # Pop the old database handle and set it.
901 $context->{"dbh"} = pop @{$context->{"dbh_stack"}};
903 # FIXME - If it is determined that restore_context should
904 # return something, then this function should, too.
909 $queryparser = C4::Context->queryparser
911 Returns a handle to an initialized Koha::QueryParser::Driver::PQF object.
917 unless (defined $context->{"queryparser"}) {
918 $context->{"queryparser"} = &_new_queryparser();
922 defined( $context->{"queryparser"} )
923 ? $context->{"queryparser"}->new
927 =head2 _new_queryparser
929 Internal helper function to create a new QueryParser object. QueryParser
930 is loaded dynamically so as to keep the lack of the QueryParser library from
931 getting in anyone's way.
935 sub _new_queryparser {
937 'OpenILS::QueryParser' => undef,
938 'Koha::QueryParser::Driver::PQF' => undef
940 if ( can_load( 'modules' => $qpmodules ) ) {
941 my $QParser = Koha::QueryParser::Driver::PQF->new();
942 my $config_file = $context->config('queryparser_config');
943 $config_file ||= '/etc/koha/searchengine/queryparser.yaml';
944 if ( $QParser->load_config($config_file) ) {
945 # Set 'keyword' as the default search class
946 $QParser->default_search_class('keyword');
947 # TODO: allow indexes to be configured in the database
954 =head2 marcfromkohafield
956 $dbh = C4::Context->marcfromkohafield;
958 Returns a hash with marcfromkohafield.
960 This hash is cached for future use: if you call
961 C<C4::Context-E<gt>marcfromkohafield> twice, you will get the same hash without real DB access
966 sub marcfromkohafield
970 # If the hash already exists, return it.
971 return $context->{"marcfromkohafield"} if defined($context->{"marcfromkohafield"});
973 # No hash. Create one.
974 $context->{"marcfromkohafield"} = &_new_marcfromkohafield();
976 return $context->{"marcfromkohafield"};
979 # _new_marcfromkohafield
980 # Internal helper function (not a method!). This creates a new
981 # hash with stopwords
982 sub _new_marcfromkohafield
984 my $dbh = C4::Context->dbh;
985 my $marcfromkohafield;
986 my $sth = $dbh->prepare("select frameworkcode,kohafield,tagfield,tagsubfield from marc_subfield_structure where kohafield > ''");
988 while (my ($frameworkcode,$kohafield,$tagfield,$tagsubfield) = $sth->fetchrow) {
990 $marcfromkohafield->{$frameworkcode}->{$kohafield} = [$tagfield,$tagsubfield];
992 return $marcfromkohafield;
997 $dbh = C4::Context->stopwords;
999 Returns a hash with stopwords.
1001 This hash is cached for future use: if you call
1002 C<C4::Context-E<gt>stopwords> twice, you will get the same hash without real DB access
1011 # If the hash already exists, return it.
1012 return $context->{"stopwords"} if defined($context->{"stopwords"});
1014 # No hash. Create one.
1015 $context->{"stopwords"} = &_new_stopwords();
1017 return $context->{"stopwords"};
1021 # Internal helper function (not a method!). This creates a new
1022 # hash with stopwords
1025 my $dbh = C4::Context->dbh;
1027 my $sth = $dbh->prepare("select word from stopwords");
1029 while (my $stopword = $sth->fetchrow_array) {
1030 $stopwordlist->{$stopword} = uc($stopword);
1032 $stopwordlist->{A} = "A" unless $stopwordlist;
1033 return $stopwordlist;
1038 C4::Context->userenv;
1040 Retrieves a hash for user environment variables.
1042 This hash shall be cached for future use: if you call
1043 C<C4::Context-E<gt>userenv> twice, you will get the same hash without real DB access
1049 my $var = $context->{"activeuser"};
1050 if (defined $var and defined $context->{"userenv"}->{$var}) {
1051 return $context->{"userenv"}->{$var};
1059 C4::Context->set_userenv($usernum, $userid, $usercnum,
1060 $userfirstname, $usersurname,
1061 $userbranch, $branchname, $userflags,
1062 $emailaddress, $branchprinter, $persona);
1064 Establish a hash of user environment variables.
1066 set_userenv is called in Auth.pm
1073 my ($usernum, $userid, $usercnum, $userfirstname, $usersurname, $userbranch, $branchname, $userflags, $emailaddress, $branchprinter, $persona, $shibboleth)=
1074 map { Encode::is_utf8( $_ ) ? $_ : Encode::decode('UTF-8', $_) } # CGI::Session doesn't handle utf-8, so we decode it here
1076 my $var=$context->{"activeuser"} || '';
1078 "number" => $usernum,
1080 "cardnumber" => $usercnum,
1081 "firstname" => $userfirstname,
1082 "surname" => $usersurname,
1083 #possibly a law problem
1084 "branch" => $userbranch,
1085 "branchname" => $branchname,
1086 "flags" => $userflags,
1087 "emailaddress" => $emailaddress,
1088 "branchprinter" => $branchprinter,
1089 "persona" => $persona,
1090 "shibboleth" => $shibboleth,
1092 $context->{userenv}->{$var} = $cell;
1096 sub set_shelves_userenv {
1097 my ($type, $shelves) = @_ or return;
1098 my $activeuser = $context->{activeuser} or return;
1099 $context->{userenv}->{$activeuser}->{barshelves} = $shelves if $type eq 'bar';
1100 $context->{userenv}->{$activeuser}->{pubshelves} = $shelves if $type eq 'pub';
1101 $context->{userenv}->{$activeuser}->{totshelves} = $shelves if $type eq 'tot';
1104 sub get_shelves_userenv {
1106 unless ($active = $context->{userenv}->{$context->{activeuser}}) {
1107 $debug and warn "get_shelves_userenv cannot retrieve context->{userenv}->{context->{activeuser}}";
1110 my $totshelves = $active->{totshelves} or undef;
1111 my $pubshelves = $active->{pubshelves} or undef;
1112 my $barshelves = $active->{barshelves} or undef;
1113 return ($totshelves, $pubshelves, $barshelves);
1118 C4::Context->_new_userenv($session); # FIXME: This calling style is wrong for what looks like an _internal function
1120 Builds a hash for user environment variables.
1122 This hash shall be cached for future use: if you call
1123 C<C4::Context-E<gt>userenv> twice, you will get the same hash without real DB access
1125 _new_userenv is called in Auth.pm
1132 shift; # Useless except it compensates for bad calling style
1133 my ($sessionID)= @_;
1134 $context->{"activeuser"}=$sessionID;
1137 =head2 _unset_userenv
1139 C4::Context->_unset_userenv;
1141 Destroys the hash for activeuser user environment variables.
1149 my ($sessionID)= @_;
1150 undef $context->{"activeuser"} if ($context->{"activeuser"} eq $sessionID);
1156 C4::Context->get_versions
1158 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'.
1164 # A little example sub to show more debugging info for CGI::Carp
1167 $versions{kohaVersion} = Koha::version();
1168 $versions{kohaDbVersion} = C4::Context->preference('version');
1169 $versions{osVersion} = join(" ", POSIX::uname());
1170 $versions{perlVersion} = $];
1172 no warnings qw(exec); # suppress warnings if unable to find a program in $PATH
1173 $versions{mysqlVersion} = `mysql -V`;
1174 $versions{apacheVersion} = `httpd -v`;
1175 $versions{apacheVersion} = `httpd2 -v` unless $versions{apacheVersion} ;
1176 $versions{apacheVersion} = `apache2 -v` unless $versions{apacheVersion} ;
1177 $versions{apacheVersion} = `/usr/sbin/apache2 -v` unless $versions{apacheVersion} ;
1187 Returns a DateTime::TimeZone object for the system timezone
1193 if (!defined $context->{tz}) {
1194 $context->{tz} = DateTime::TimeZone->new(name => 'local');
1196 return $context->{tz};
1200 =head2 IsSuperLibrarian
1202 C4::Context->IsSuperlibrarian();
1206 sub IsSuperLibrarian {
1207 my $userenv = C4::Context->userenv;
1209 unless ( $userenv and exists $userenv->{flags} ) {
1210 # If we reach this without a user environment,
1211 # assume that we're running from a command-line script,
1212 # and act as a superlibrarian.
1213 carp("C4::Context->userenv not defined!");
1217 return ($userenv->{flags}//0) % 2;
1222 Sets the current interface for later retrieval in any Perl module
1224 C4::Context->interface('opac');
1225 C4::Context->interface('intranet');
1226 my $interface = C4::Context->interface;
1231 my ($class, $interface) = @_;
1233 if (defined $interface) {
1234 $interface = lc $interface;
1235 if ($interface eq 'opac' || $interface eq 'intranet') {
1236 $context->{interface} = $interface;
1238 warn "invalid interface : '$interface'";
1242 return $context->{interface} // 'opac';
1252 Specifies the configuration file to read.
1260 Andrew Arensburger <arensb at ooblick dot com>
1262 Joshua Ferraro <jmf at liblime dot com>