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';
108 use DateTime::TimeZone;
109 use Module::Load::Conditional qw(can_load);
114 C4::Context - Maintain and manipulate the context of a Koha script
120 use C4::Context("/path/to/koha-conf.xml");
122 $config_value = C4::Context->config("config_variable");
124 $koha_preference = C4::Context->preference("preference");
126 $db_handle = C4::Context->dbh;
128 $Zconn = C4::Context->Zconn;
130 $stopwordhash = C4::Context->stopwords;
134 When a Koha script runs, it makes use of a certain number of things:
135 configuration settings in F</etc/koha/koha-conf.xml>, a connection to the Koha
136 databases, and so forth. These things make up the I<context> in which
139 This module takes care of setting up the context for a script:
140 figuring out which configuration file to load, and loading it, opening
141 a connection to the right database, and so forth.
143 Most scripts will only use one context. They can simply have
149 Other scripts may need to use several contexts. For instance, if a
150 library has two databases, one for a certain collection, and the other
151 for everything else, it might be necessary for a script to use two
152 different contexts to search both databases. Such scripts should use
153 the C<&set_context> and C<&restore_context> functions, below.
155 By default, C4::Context reads the configuration from
156 F</etc/koha/koha-conf.xml>. This may be overridden by setting the C<$KOHA_CONF>
157 environment variable to the pathname of a configuration file to use.
164 # In addition to what is said in the POD above, a Context object is a
165 # reference-to-hash with the following fields:
168 # A reference-to-hash whose keys and values are the
169 # configuration variables and values specified in the config
170 # file (/etc/koha/koha-conf.xml).
172 # A handle to the appropriate database for this context.
174 # Used by &set_dbh and &restore_dbh to hold other database
175 # handles for this context.
177 # A connection object for the Zebra server
179 # Koha's main configuration file koha-conf.xml
180 # is searched for according to this priority list:
182 # 1. Path supplied via use C4::Context '/path/to/koha-conf.xml'
183 # 2. Path supplied in KOHA_CONF environment variable.
184 # 3. Path supplied in INSTALLED_CONFIG_FNAME, as long
185 # as value has changed from its default of
186 # '__KOHA_CONF_DIR__/koha-conf.xml', as happens
187 # when Koha is installed in 'standard' or 'single'
189 # 4. Path supplied in CONFIG_FNAME.
191 # The first entry that refers to a readable file is used.
193 use constant CONFIG_FNAME => "/etc/koha/koha-conf.xml";
194 # Default config file, if none is specified
196 my $INSTALLED_CONFIG_FNAME = '__KOHA_CONF_DIR__/koha-conf.xml';
197 # path to config file set by installer
198 # __KOHA_CONF_DIR__ is set by rewrite-confg.PL
199 # when Koha is installed in 'standard' or 'single'
200 # mode. If Koha was installed in 'dev' mode,
201 # __KOHA_CONF_DIR__ is *not* rewritten; instead
202 # developers should set the KOHA_CONF environment variable
204 $context = undef; # Initially, no context is set
205 @context_stack = (); # Initially, no saved contexts
208 =head2 read_config_file
210 Reads the specified Koha config file.
212 Returns an object containing the configuration variables. The object's
213 structure is a bit complex to the uninitiated ... take a look at the
214 koha-conf.xml file as well as the XML::Simple documentation for details. Or,
215 here are a few examples that may give you what you need:
217 The simple elements nested within the <config> element:
219 my $pass = $koha->{'config'}->{'pass'};
221 The <listen> elements:
223 my $listen = $koha->{'listen'}->{'biblioserver'}->{'content'};
225 The elements nested within the <server> element:
227 my $ccl2rpn = $koha->{'server'}->{'biblioserver'}->{'cql2rpn'};
229 Returns undef in case of error.
233 sub read_config_file { # Pass argument naming config file to read
234 my $koha = XMLin(shift, keyattr => ['id'], forcearray => ['listen', 'server', 'serverinfo'], suppressempty => '');
237 $memcached->set('kohaconf',$koha);
240 return $koha; # Return value: ref-to-hash holding the configuration
245 Returns the value of the $ismemcached variable (0/1)
255 If $ismemcached is true, returns the $memcache variable.
256 Returns undef otherwise
270 my $dbd_driver_name = C4::Context::db_schema2dbi($scheme);
272 This routines translates a database type to part of the name
273 of the appropriate DBD driver to use when establishing a new
274 database connection. It recognizes 'mysql' and 'Pg'; if any
275 other scheme is supplied it defaults to 'mysql'.
280 my $scheme = shift // '';
281 return $scheme eq 'Pg' ? $scheme : 'mysql';
285 # Create the default context ($C4::Context::Context)
286 # the first time the module is called
287 # (a config file can be optionaly passed)
289 # default context allready exists?
293 my ($pkg,$config_file) = @_ ;
294 my $new_ctx = __PACKAGE__->new($config_file);
295 return unless $new_ctx;
297 # if successfully loaded, use it by default
298 $new_ctx->set_context;
304 $context = new C4::Context;
305 $context = new C4::Context("/path/to/koha-conf.xml");
307 Allocates a new context. Initializes the context from the specified
308 file, which defaults to either the file given by the C<$KOHA_CONF>
309 environment variable, or F</etc/koha/koha-conf.xml>.
311 It saves the koha-conf.xml values in the declared memcached server(s)
312 if currently available and uses those values until them expire and
315 C<&new> does not set this context as the new default context; for
316 that, use C<&set_context>.
322 # 2004-08-10 A. Tarallo: Added check if the conf file is not empty
325 my $conf_fname = shift; # Config file to load
328 # check that the specified config file exists and is not empty
329 undef $conf_fname unless
330 (defined $conf_fname && -s $conf_fname);
331 # Figure out a good config file to load if none was specified.
332 if (!defined($conf_fname))
334 # If the $KOHA_CONF environment variable is set, use
335 # that. Otherwise, use the built-in default.
336 if (exists $ENV{"KOHA_CONF"} and $ENV{'KOHA_CONF'} and -s $ENV{"KOHA_CONF"}) {
337 $conf_fname = $ENV{"KOHA_CONF"};
338 } elsif ($INSTALLED_CONFIG_FNAME !~ /__KOHA_CONF_DIR/ and -s $INSTALLED_CONFIG_FNAME) {
339 # NOTE: be careful -- don't change __KOHA_CONF_DIR in the above
340 # regex to anything else -- don't want installer to rewrite it
341 $conf_fname = $INSTALLED_CONFIG_FNAME;
342 } elsif (-s CONFIG_FNAME) {
343 $conf_fname = CONFIG_FNAME;
345 warn "unable to locate Koha configuration file koha-conf.xml";
351 # retreive from memcached
352 $self = $memcached->get('kohaconf');
353 if (not defined $self) {
354 # not in memcached yet
355 $self = read_config_file($conf_fname);
358 # non-memcached env, read from file
359 $self = read_config_file($conf_fname);
362 $self->{"config_file"} = $conf_fname;
363 warn "read_config_file($conf_fname) returned undef" if !defined($self->{"config"});
364 return if !defined($self->{"config"});
366 $self->{"dbh"} = undef; # Database handle
367 $self->{"Zconn"} = undef; # Zebra Connections
368 $self->{"stopwords"} = undef; # stopwords list
369 $self->{"marcfromkohafield"} = undef; # the hash with relations between koha table fields and MARC field/subfield
370 $self->{"userenv"} = undef; # User env
371 $self->{"activeuser"} = undef; # current active user
372 $self->{"shelves"} = undef;
373 $self->{tz} = undef; # local timezone object
376 $self->{db_driver} = db_scheme2dbi($self->config('db_scheme')); # cache database driver
382 $context = new C4::Context;
383 $context->set_context();
385 set_context C4::Context $context;
388 restore_context C4::Context;
390 In some cases, it might be necessary for a script to use multiple
391 contexts. C<&set_context> saves the current context on a stack, then
392 sets the context to C<$context>, which will be used in future
393 operations. To restore the previous context, use C<&restore_context>.
401 my $new_context; # The context to set
403 # Figure out whether this is a class or instance method call.
405 # We're going to make the assumption that control got here
406 # through valid means, i.e., that the caller used an instance
407 # or class method call, and that control got here through the
408 # usual inheritance mechanisms. The caller can, of course,
409 # break this assumption by playing silly buggers, but that's
410 # harder to do than doing it properly, and harder to check
412 if (ref($self) eq "")
414 # Class method. The new context is the next argument.
415 $new_context = shift;
417 # Instance method. The new context is $self.
418 $new_context = $self;
421 # Save the old context, if any, on the stack
422 push @context_stack, $context if defined($context);
424 # Set the new context
425 $context = $new_context;
428 =head2 restore_context
432 Restores the context set by C<&set_context>.
441 if ($#context_stack < 0)
444 die "Context stack underflow";
447 # Pop the old context and set it.
448 $context = pop @context_stack;
450 # FIXME - Should this return something, like maybe the context
451 # that was current when this was called?
456 $value = C4::Context->config("config_variable");
458 $value = C4::Context->config_variable;
460 Returns the value of a variable specified in the configuration file
461 from which the current context was created.
463 The second form is more compact, but of course may conflict with
464 method names. If there is a configuration variable called "new", then
465 C<C4::Config-E<gt>new> will not return it.
472 return if !defined($context->{$term});
473 # Presumably $self->{$term} might be
474 # undefined if the config file given to &new
475 # didn't exist, and the caller didn't bother
476 # to check the return value.
478 # Return the value of the requested config variable
479 return $context->{$term}->{$var};
483 return _common_config($_[1],'config');
486 return _common_config($_[1],'server');
489 return _common_config($_[1],'serverinfo');
494 $sys_preference = C4::Context->preference('some_variable');
496 Looks up the value of the given system preference in the
497 systempreferences table of the Koha database, and returns it. If the
498 variable is not set or does not exist, undef is returned.
500 In case of an error, this may return 0.
502 Note: It is impossible to tell the difference between system
503 preferences which do not exist, and those whose values are set to NULL
508 # FIXME: running this under mod_perl will require a means of
509 # flushing the caching mechanism.
512 my $use_syspref_cache = 1;
516 my $var = shift; # The system preference to return
518 if ($use_syspref_cache && exists $sysprefs{lc $var}) {
519 return $sysprefs{lc $var};
522 my $dbh = C4::Context->dbh or return 0;
525 if ( defined $ENV{"OVERRIDE_SYSPREF_$var"} ) {
526 $value = $ENV{"OVERRIDE_SYSPREF_$var"};
528 # Look up systempreferences.variable==$var
531 FROM systempreferences
535 $value = $dbh->selectrow_array( $sql, {}, lc $var );
538 $sysprefs{lc $var} = $value;
542 sub boolean_preference {
544 my $var = shift; # The system preference to return
545 my $it = preference($self, $var);
546 return defined($it)? C4::Boolean::true_p($it): undef;
549 =head2 enable_syspref_cache
551 C4::Context->enable_syspref_cache();
553 Enable the in-memory syspref cache used by C4::Context. This is the
558 sub enable_syspref_cache {
560 $use_syspref_cache = 1;
563 =head2 disable_syspref_cache
565 C4::Context->disable_syspref_cache();
567 Disable the in-memory syspref cache used by C4::Context. This should be
568 used with Plack and other persistent environments.
572 sub disable_syspref_cache {
574 $use_syspref_cache = 0;
575 $self->clear_syspref_cache();
578 =head2 clear_syspref_cache
580 C4::Context->clear_syspref_cache();
582 cleans the internal cache of sysprefs. Please call this method if
583 you update the systempreferences table. Otherwise, your new changes
584 will not be seen by this process.
588 sub clear_syspref_cache {
592 =head2 set_preference
594 C4::Context->set_preference( $variable, $value );
596 This updates a preference's value both in the systempreferences table and in
606 my $dbh = C4::Context->dbh or return 0;
608 my $type = $dbh->selectrow_array( "SELECT type FROM systempreferences WHERE variable = ?", {}, $var );
610 $value = 0 if ( $type && $type eq 'YesNo' && $value eq '' );
612 # force explicit protocol on OPACBaseURL
613 if ($var eq 'opacbaseurl' && substr($value,0,4) !~ /http/) {
614 $value = 'http://' . $value;
617 my $sth = $dbh->prepare( "
618 INSERT INTO systempreferences
621 ON DUPLICATE KEY UPDATE value = VALUES(value)
624 if($sth->execute( $var, $value )) {
625 $sysprefs{$var} = $value;
631 # This implements C4::Config->foo, and simply returns
632 # C4::Context->config("foo"), as described in the documentation for
635 # FIXME - Perhaps this should be extended to check &config first, and
636 # then &preference if that fails. OTOH, AUTOLOAD could lead to crappy
637 # code, so it'd probably be best to delete it altogether so as not to
638 # encourage people to use it.
643 $AUTOLOAD =~ s/.*:://; # Chop off the package name,
644 # leaving only the function name.
645 return $self->config($AUTOLOAD);
650 $Zconn = C4::Context->Zconn
652 Returns a connection to the Zebra database
656 C<$server> one of the servers defined in the koha-conf.xml file
658 C<$async> whether this is a asynchronous connection
663 my ($self, $server, $async ) = @_;
664 my $cache_key = join ('::', (map { $_ // '' } ($server, $async )));
665 if ( (!defined($ENV{GATEWAY_INTERFACE})) && defined($context->{"Zconn"}->{$cache_key}) && (0 == $context->{"Zconn"}->{$cache_key}->errcode()) ) {
666 # if we are running the script from the commandline, lets try to use the caching
667 return $context->{"Zconn"}->{$cache_key};
669 $context->{"Zconn"}->{$cache_key}->destroy() if defined($context->{"Zconn"}->{$cache_key}); #destroy old connection before making a new one
670 $context->{"Zconn"}->{$cache_key} = &_new_Zconn( $server, $async );
671 return $context->{"Zconn"}->{$cache_key};
676 $context->{"Zconn"} = &_new_Zconn($server,$async);
678 Internal function. Creates a new database connection from the data given in the current context and returns it.
680 C<$server> one of the servers defined in the koha-conf.xml file
682 C<$async> whether this is a asynchronous connection
684 C<$auth> whether this connection has rw access (1) or just r access (0 or NULL)
689 my ( $server, $async ) = @_;
691 my $tried=0; # first attempt
692 my $Zconn; # connection object
697 $server //= "biblioserver";
699 if ( $server eq 'biblioserver' ) {
700 $index_mode = $context->{'config'}->{'zebra_bib_index_mode'} // 'dom';
701 } elsif ( $server eq 'authorityserver' ) {
702 $index_mode = $context->{'config'}->{'zebra_auth_index_mode'} // 'dom';
705 if ( $index_mode eq 'grs1' ) {
706 $elementSetName = 'F';
707 $syntax = ( $context->preference("marcflavour") eq 'UNIMARC' )
711 } else { # $index_mode eq 'dom'
713 $elementSetName = 'marcxml';
716 my $host = $context->{'listen'}->{$server}->{'content'};
717 my $user = $context->{"serverinfo"}->{$server}->{"user"};
718 my $password = $context->{"serverinfo"}->{$server}->{"password"};
721 my $o = new ZOOM::Options();
722 $o->option(user => $user) if $user && $password;
723 $o->option(password => $password) if $user && $password;
724 $o->option(async => 1) if $async;
725 $o->option(cqlfile=> $context->{"server"}->{$server}->{"cql2rpn"});
726 $o->option(cclfile=> $context->{"serverinfo"}->{$server}->{"ccl2rpn"});
727 $o->option(preferredRecordSyntax => $syntax);
728 $o->option(elementSetName => $elementSetName) if $elementSetName;
729 $o->option(databaseName => $context->{"config"}->{$server}||"biblios");
731 # create a new connection object
732 $Zconn= create ZOOM::Connection($o);
735 $Zconn->connect($host, 0);
737 # check for errors and warn
738 if ($Zconn->errcode() !=0) {
739 warn "something wrong with the connection: ". $Zconn->errmsg();
746 # Internal helper function (not a method!). This creates a new
747 # database connection from the data given in the current context, and
753 ## correct name for db_scheme
754 my $db_driver = $context->{db_driver};
756 my $db_name = $context->config("database");
757 my $db_host = $context->config("hostname");
758 my $db_port = $context->config("port") || '';
759 my $db_user = $context->config("user");
760 my $db_passwd = $context->config("pass");
761 # MJR added or die here, as we can't work without dbh
762 my $dbh = DBIx::Connector->connect(
763 "dbi:$db_driver:dbname=$db_name;host=$db_host;port=$db_port",
764 $db_user, $db_passwd,
766 'RaiseError' => $ENV{DEBUG} ? 1 : 0
770 # Check for the existence of a systempreference table; if we don't have this, we don't
771 # have a valid database and should not set RaiseError in order to allow the installer
772 # to run; installer will not run otherwise since we raise all db errors
775 local $dbh->{PrintError} = 0;
776 local $dbh->{RaiseError} = 1;
777 $dbh->do(qq{SELECT * FROM systempreferences WHERE 1 = 0 });
781 $dbh->{RaiseError} = 0;
784 if ( $db_driver eq 'mysql' ) {
785 $dbh->{mysql_auto_reconnect} = 1;
789 if ( $db_driver eq 'mysql' ) {
790 # Koha 3.0 is utf-8, so force utf8 communication between mySQL and koha, whatever the mysql default config.
791 # this is better than modifying my.cnf (and forcing all communications to be in utf8)
792 $dbh->{'mysql_enable_utf8'}=1; #enable
793 $dbh->do("set NAMES 'utf8'");
794 ($tz) and $dbh->do(qq(SET time_zone = "$tz"));
796 elsif ( $db_driver eq 'Pg' ) {
797 $dbh->do( "set client_encoding = 'UTF8';" );
798 ($tz) and $dbh->do(qq(SET TIME ZONE = "$tz"));
805 $dbh = C4::Context->dbh;
807 Returns a database handle connected to the Koha database for the
808 current context. If no connection has yet been made, this method
809 creates one, and connects to the database.
811 This database handle is cached for future use: if you call
812 C<C4::Context-E<gt>dbh> twice, you will get the same handle both
813 times. If you need a second database handle, use C<&new_dbh> and
814 possibly C<&set_dbh>.
825 unless ( $params->{new} ) {
826 if ( defined($context->{db_driver}) && $context->{db_driver} eq 'mysql' && $context->{"dbh"} ) {
827 return $context->{"dbh"};
828 } elsif ( defined($context->{"dbh"}) && $context->{"dbh"}->ping() ) {
829 return $context->{"dbh"};
833 # No database handle or it died . Create one.
834 $context->{"dbh"} = &_new_dbh();
836 return $context->{"dbh"};
841 $dbh = C4::Context->new_dbh;
843 Creates a new connection to the Koha database for the current context,
844 and returns the database handle (a C<DBI::db> object).
846 The handle is not saved anywhere: this method is strictly a
847 convenience function; the point is that it knows which database to
848 connect to so that the caller doesn't have to know.
862 $my_dbh = C4::Connect->new_dbh;
863 C4::Connect->set_dbh($my_dbh);
865 C4::Connect->restore_dbh;
867 C<&set_dbh> and C<&restore_dbh> work in a manner analogous to
868 C<&set_context> and C<&restore_context>.
870 C<&set_dbh> saves the current database handle on a stack, then sets
871 the current database handle to C<$my_dbh>.
873 C<$my_dbh> is assumed to be a good database handle.
883 # Save the current database handle on the handle stack.
884 # We assume that $new_dbh is all good: if the caller wants to
885 # screw himself by passing an invalid handle, that's fine by
887 push @{$context->{"dbh_stack"}}, $context->{"dbh"};
888 $context->{"dbh"} = $new_dbh;
893 C4::Context->restore_dbh;
895 Restores the database handle saved by an earlier call to
896 C<C4::Context-E<gt>set_dbh>.
905 if ($#{$context->{"dbh_stack"}} < 0)
908 die "DBH stack underflow";
911 # Pop the old database handle and set it.
912 $context->{"dbh"} = pop @{$context->{"dbh_stack"}};
914 # FIXME - If it is determined that restore_context should
915 # return something, then this function should, too.
920 $queryparser = C4::Context->queryparser
922 Returns a handle to an initialized Koha::QueryParser::Driver::PQF object.
928 unless (defined $context->{"queryparser"}) {
929 $context->{"queryparser"} = &_new_queryparser();
933 defined( $context->{"queryparser"} )
934 ? $context->{"queryparser"}->new
938 =head2 _new_queryparser
940 Internal helper function to create a new QueryParser object. QueryParser
941 is loaded dynamically so as to keep the lack of the QueryParser library from
942 getting in anyone's way.
946 sub _new_queryparser {
948 'OpenILS::QueryParser' => undef,
949 'Koha::QueryParser::Driver::PQF' => undef
951 if ( can_load( 'modules' => $qpmodules ) ) {
952 my $QParser = Koha::QueryParser::Driver::PQF->new();
953 my $config_file = $context->config('queryparser_config');
954 $config_file ||= '/etc/koha/searchengine/queryparser.yaml';
955 if ( $QParser->load_config($config_file) ) {
956 # Set 'keyword' as the default search class
957 $QParser->default_search_class('keyword');
958 # TODO: allow indexes to be configured in the database
965 =head2 marcfromkohafield
967 $dbh = C4::Context->marcfromkohafield;
969 Returns a hash with marcfromkohafield.
971 This hash is cached for future use: if you call
972 C<C4::Context-E<gt>marcfromkohafield> twice, you will get the same hash without real DB access
977 sub marcfromkohafield
981 # If the hash already exists, return it.
982 return $context->{"marcfromkohafield"} if defined($context->{"marcfromkohafield"});
984 # No hash. Create one.
985 $context->{"marcfromkohafield"} = &_new_marcfromkohafield();
987 return $context->{"marcfromkohafield"};
990 # _new_marcfromkohafield
991 # Internal helper function (not a method!). This creates a new
992 # hash with stopwords
993 sub _new_marcfromkohafield
995 my $dbh = C4::Context->dbh;
996 my $marcfromkohafield;
997 my $sth = $dbh->prepare("select frameworkcode,kohafield,tagfield,tagsubfield from marc_subfield_structure where kohafield > ''");
999 while (my ($frameworkcode,$kohafield,$tagfield,$tagsubfield) = $sth->fetchrow) {
1001 $marcfromkohafield->{$frameworkcode}->{$kohafield} = [$tagfield,$tagsubfield];
1003 return $marcfromkohafield;
1008 $dbh = C4::Context->stopwords;
1010 Returns a hash with stopwords.
1012 This hash is cached for future use: if you call
1013 C<C4::Context-E<gt>stopwords> twice, you will get the same hash without real DB access
1022 # If the hash already exists, return it.
1023 return $context->{"stopwords"} if defined($context->{"stopwords"});
1025 # No hash. Create one.
1026 $context->{"stopwords"} = &_new_stopwords();
1028 return $context->{"stopwords"};
1032 # Internal helper function (not a method!). This creates a new
1033 # hash with stopwords
1036 my $dbh = C4::Context->dbh;
1038 my $sth = $dbh->prepare("select word from stopwords");
1040 while (my $stopword = $sth->fetchrow_array) {
1041 $stopwordlist->{$stopword} = uc($stopword);
1043 $stopwordlist->{A} = "A" unless $stopwordlist;
1044 return $stopwordlist;
1049 C4::Context->userenv;
1051 Retrieves a hash for user environment variables.
1053 This hash shall be cached for future use: if you call
1054 C<C4::Context-E<gt>userenv> twice, you will get the same hash without real DB access
1060 my $var = $context->{"activeuser"};
1061 if (defined $var and defined $context->{"userenv"}->{$var}) {
1062 return $context->{"userenv"}->{$var};
1070 C4::Context->set_userenv($usernum, $userid, $usercnum,
1071 $userfirstname, $usersurname,
1072 $userbranch, $branchname, $userflags,
1073 $emailaddress, $branchprinter, $persona);
1075 Establish a hash of user environment variables.
1077 set_userenv is called in Auth.pm
1084 my ($usernum, $userid, $usercnum, $userfirstname, $usersurname, $userbranch, $branchname, $userflags, $emailaddress, $branchprinter, $persona, $shibboleth)=
1085 map { Encode::is_utf8( $_ ) ? $_ : Encode::decode('UTF-8', $_) } # CGI::Session doesn't handle utf-8, so we decode it here
1087 my $var=$context->{"activeuser"} || '';
1089 "number" => $usernum,
1091 "cardnumber" => $usercnum,
1092 "firstname" => $userfirstname,
1093 "surname" => $usersurname,
1094 #possibly a law problem
1095 "branch" => $userbranch,
1096 "branchname" => $branchname,
1097 "flags" => $userflags,
1098 "emailaddress" => $emailaddress,
1099 "branchprinter" => $branchprinter,
1100 "persona" => $persona,
1101 "shibboleth" => $shibboleth,
1103 $context->{userenv}->{$var} = $cell;
1107 sub set_shelves_userenv {
1108 my ($type, $shelves) = @_ or return;
1109 my $activeuser = $context->{activeuser} or return;
1110 $context->{userenv}->{$activeuser}->{barshelves} = $shelves if $type eq 'bar';
1111 $context->{userenv}->{$activeuser}->{pubshelves} = $shelves if $type eq 'pub';
1112 $context->{userenv}->{$activeuser}->{totshelves} = $shelves if $type eq 'tot';
1115 sub get_shelves_userenv {
1117 unless ($active = $context->{userenv}->{$context->{activeuser}}) {
1118 $debug and warn "get_shelves_userenv cannot retrieve context->{userenv}->{context->{activeuser}}";
1121 my $totshelves = $active->{totshelves} or undef;
1122 my $pubshelves = $active->{pubshelves} or undef;
1123 my $barshelves = $active->{barshelves} or undef;
1124 return ($totshelves, $pubshelves, $barshelves);
1129 C4::Context->_new_userenv($session); # FIXME: This calling style is wrong for what looks like an _internal function
1131 Builds a hash for user environment variables.
1133 This hash shall be cached for future use: if you call
1134 C<C4::Context-E<gt>userenv> twice, you will get the same hash without real DB access
1136 _new_userenv is called in Auth.pm
1143 shift; # Useless except it compensates for bad calling style
1144 my ($sessionID)= @_;
1145 $context->{"activeuser"}=$sessionID;
1148 =head2 _unset_userenv
1150 C4::Context->_unset_userenv;
1152 Destroys the hash for activeuser user environment variables.
1160 my ($sessionID)= @_;
1161 undef $context->{"activeuser"} if ($context->{"activeuser"} eq $sessionID);
1167 C4::Context->get_versions
1169 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'.
1175 # A little example sub to show more debugging info for CGI::Carp
1178 $versions{kohaVersion} = Koha::version();
1179 $versions{kohaDbVersion} = C4::Context->preference('version');
1180 $versions{osVersion} = join(" ", POSIX::uname());
1181 $versions{perlVersion} = $];
1183 no warnings qw(exec); # suppress warnings if unable to find a program in $PATH
1184 $versions{mysqlVersion} = `mysql -V`;
1185 $versions{apacheVersion} = `httpd -v`;
1186 $versions{apacheVersion} = `httpd2 -v` unless $versions{apacheVersion} ;
1187 $versions{apacheVersion} = `apache2 -v` unless $versions{apacheVersion} ;
1188 $versions{apacheVersion} = `/usr/sbin/apache2 -v` unless $versions{apacheVersion} ;
1198 Returns a DateTime::TimeZone object for the system timezone
1204 if (!defined $context->{tz}) {
1205 $context->{tz} = DateTime::TimeZone->new(name => 'local');
1207 return $context->{tz};
1211 =head2 IsSuperLibrarian
1213 C4::Context->IsSuperlibrarian();
1217 sub IsSuperLibrarian {
1218 my $userenv = C4::Context->userenv;
1220 unless ( $userenv and exists $userenv->{flags} ) {
1221 # If we reach this without a user environment,
1222 # assume that we're running from a command-line script,
1223 # and act as a superlibrarian.
1224 carp("C4::Context->userenv not defined!");
1228 return ($userenv->{flags}//0) % 2;
1233 Sets the current interface for later retrieval in any Perl module
1235 C4::Context->interface('opac');
1236 C4::Context->interface('intranet');
1237 my $interface = C4::Context->interface;
1242 my ($class, $interface) = @_;
1244 if (defined $interface) {
1245 $interface = lc $interface;
1246 if ($interface eq 'opac' || $interface eq 'intranet') {
1247 $context->{interface} = $interface;
1249 warn "invalid interface : '$interface'";
1253 return $context->{interface} // 'opac';
1263 Specifies the configuration file to read.
1271 Andrew Arensburger <arensb at ooblick dot com>
1273 Joshua Ferraro <jmf at liblime dot com>