Koha/C4/Reports/Guided.pm
Paul Hoffman 79e15278f7
Bug 23624: Count rows in report without (potentially) consuming all memory
C4::Reports::Guided::nb_rows (called by get_prepped_report in reports/guided_reports.pl) uses DBI::fetchall_arrayref to retrieve all rows at once; counts them; and then discards the rows and returns the count.  This has the potential, if the number of rows is very large, to exhaust all available memory.

(Other code in guided_reports.pl has the same potential effect, but because the solution to that is much less straightforward it will be addressed in a separate bug report.)

This patch uses the second ($max_rows) parameter to DBI::fetchall_arrayref to retrieve a smaller number (1,000) of rows at a time, looping until all results have been retrieved.  This will only use as much memory as the maximum amount used by a single call to DBI::fetchall_arrayref.

Test Plan:
1) Create a report the will generate a huge number of results
2) Run the report, watch your memory usage spike
3) Apply this patch
4) Restart all the things!
5) Run the report again, note your memory usage is much lower

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Liz Rea <wizzyrea@gmail.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
2019-09-30 15:48:48 +01:00

1074 lines
33 KiB
Perl

package C4::Reports::Guided;
# Copyright 2007 Liblime Ltd
#
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Koha is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Koha; if not, see <http://www.gnu.org/licenses>.
use Modern::Perl;
use CGI qw ( -utf8 );
use Carp;
use JSON qw( from_json );
use vars qw(@ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
use C4::Context;
use C4::Templates qw/themelanguage/;
use C4::Koha;
use Koha::DateUtils;
use Koha::Patrons;
use Koha::Reports;
use C4::Output;
use C4::Debug;
use C4::Log;
use Koha::Notice::Templates;
use C4::Letters;
use Koha::AuthorisedValues;
use Koha::Patron::Categories;
use Koha::SharedContent;
BEGIN {
require Exporter;
@ISA = qw(Exporter);
@EXPORT = qw(
get_report_types get_report_areas get_report_groups get_columns build_query get_criteria
save_report get_saved_reports execute_query
get_column_type get_distinct_values save_dictionary get_from_dictionary
delete_definition delete_report format_results get_sql
nb_rows update_sql
GetReservedAuthorisedValues
GetParametersFromSQL
IsAuthorisedValueValid
ValidateSQLParameters
nb_rows update_sql
);
}
=head1 NAME
C4::Reports::Guided - Module for generating guided reports
=head1 SYNOPSIS
use C4::Reports::Guided;
=head1 DESCRIPTION
=cut
=head1 METHODS
=head2 get_report_areas
This will return a list of all the available report areas
=cut
sub get_area_name_sql_snippet {
my @REPORT_AREA = (
[CIRC => "Circulation"],
[CAT => "Catalogue"],
[PAT => "Patrons"],
[ACQ => "Acquisition"],
[ACC => "Accounts"],
[SER => "Serials"],
);
return "CASE report_area " .
join (" ", map "WHEN '$_->[0]' THEN '$_->[1]'", @REPORT_AREA) .
" END AS areaname";
}
sub get_report_areas {
my $report_areas = [ 'CIRC', 'CAT', 'PAT', 'ACQ', 'ACC', 'SER' ];
return $report_areas;
}
sub get_table_areas {
return (
CIRC => [ 'borrowers', 'statistics', 'items', 'biblioitems' ],
CAT => [ 'items', 'biblioitems', 'biblio' ],
PAT => ['borrowers'],
ACQ => [ 'aqorders', 'biblio', 'items' ],
ACC => [ 'borrowers', 'accountlines' ],
SER => [ 'serial', 'serialitems', 'subscription', 'subscriptionhistory', 'subscriptionroutinglist', 'biblioitems', 'biblio', 'aqbooksellers' ],
);
}
=head2 get_report_types
This will return a list of all the available report types
=cut
sub get_report_types {
my $dbh = C4::Context->dbh();
# FIXME these should be in the database perhaps
my @reports = ( 'Tabular', 'Summary', 'Matrix' );
my @reports2;
for ( my $i = 0 ; $i < 3 ; $i++ ) {
my %hashrep;
$hashrep{id} = $i + 1;
$hashrep{name} = $reports[$i];
push @reports2, \%hashrep;
}
return ( \@reports2 );
}
=head2 get_report_groups
This will return a list of all the available report areas with groups
=cut
sub get_report_groups {
my $dbh = C4::Context->dbh();
my $groups = GetAuthorisedValues('REPORT_GROUP');
my $subgroups = GetAuthorisedValues('REPORT_SUBGROUP');
my %groups_with_subgroups = map { $_->{authorised_value} => {
name => $_->{lib},
groups => {}
} } @$groups;
foreach (@$subgroups) {
my $sg = $_->{authorised_value};
my $g = $_->{lib_opac}
or warn( qq{REPORT_SUBGROUP "$sg" without REPORT_GROUP (lib_opac)} ),
next;
my $g_sg = $groups_with_subgroups{$g}
or warn( qq{REPORT_SUBGROUP "$sg" with invalid REPORT_GROUP "$g"} ),
next;
$g_sg->{subgroups}{$sg} = $_->{lib};
}
return \%groups_with_subgroups
}
=head2 get_all_tables
This will return a list of all tables in the database
=cut
sub get_all_tables {
my $dbh = C4::Context->dbh();
my $query = "SHOW TABLES";
my $sth = $dbh->prepare($query);
$sth->execute();
my @tables;
while ( my $data = $sth->fetchrow_arrayref() ) {
push @tables, $data->[0];
}
$sth->finish();
return ( \@tables );
}
=head2 get_columns($area)
This will return a list of all columns for a report area
=cut
sub get_columns {
# this calls the internal function _get_columns
my ( $area, $cgi ) = @_;
my %table_areas = get_table_areas;
my $tables = $table_areas{$area}
or die qq{Unsuported report area "$area"};
my @allcolumns;
my $first = 1;
foreach my $table (@$tables) {
my @columns = _get_columns($table,$cgi, $first);
$first = 0;
push @allcolumns, @columns;
}
return ( \@allcolumns );
}
sub _get_columns {
my ($tablename,$cgi, $first) = @_;
my $dbh = C4::Context->dbh();
my $sth = $dbh->prepare("show columns from $tablename");
$sth->execute();
my @columns;
my $column_defs = _get_column_defs($cgi);
my %tablehash;
$tablehash{'table'}=$tablename;
$tablehash{'__first__'} = $first;
push @columns, \%tablehash;
while ( my $data = $sth->fetchrow_arrayref() ) {
my %temphash;
$temphash{'name'} = "$tablename.$data->[0]";
$temphash{'description'} = $column_defs->{"$tablename.$data->[0]"};
push @columns, \%temphash;
}
$sth->finish();
return (@columns);
}
=head2 build_query($columns,$criteria,$orderby,$area)
This will build the sql needed to return the results asked for,
$columns is expected to be of the format tablename.columnname.
This is what get_columns returns.
=cut
sub build_query {
my ( $columns, $criteria, $orderby, $area, $totals, $definition ) = @_;
my %keys = (
CIRC => [ 'statistics.borrowernumber=borrowers.borrowernumber',
'items.itemnumber = statistics.itemnumber',
'biblioitems.biblioitemnumber = items.biblioitemnumber' ],
CAT => [ 'items.biblioitemnumber=biblioitems.biblioitemnumber',
'biblioitems.biblionumber=biblio.biblionumber' ],
PAT => [],
ACQ => [ 'aqorders.biblionumber=biblio.biblionumber',
'biblio.biblionumber=items.biblionumber' ],
ACC => ['borrowers.borrowernumber=accountlines.borrowernumber'],
SER => [ 'serial.serialid=serialitems.serialid', 'serial.subscriptionid=subscription.subscriptionid', 'serial.subscriptionid=subscriptionhistory.subscriptionid', 'serial.subscriptionid=subscriptionroutinglist.subscriptionid', 'biblioitems.biblionumber=serial.biblionumber', 'biblio.biblionumber=biblioitems.biblionumber', 'subscription.aqbooksellerid=aqbooksellers.id'],
);
### $orderby
my $keys = $keys{$area};
my %table_areas = get_table_areas;
my $tables = $table_areas{$area};
my $sql =
_build_query( $tables, $columns, $criteria, $keys, $orderby, $totals, $definition );
return ($sql);
}
sub _build_query {
my ( $tables, $columns, $criteria, $keys, $orderby, $totals, $definition) = @_;
### $orderby
# $keys is an array of joining constraints
my $dbh = C4::Context->dbh();
my $joinedtables = join( ',', @$tables );
my $joinedcolumns = join( ',', @$columns );
my $query =
"SELECT $totals $joinedcolumns FROM $tables->[0] ";
for (my $i=1;$i<@$tables;$i++){
$query .= "LEFT JOIN $tables->[$i] on ($keys->[$i-1]) ";
}
if ($criteria) {
$criteria =~ s/AND/WHERE/;
$query .= " $criteria";
}
if ($definition){
my @definitions = split(',',$definition);
my $deftext;
foreach my $def (@definitions){
my $defin=get_from_dictionary('',$def);
$deftext .=" ".$defin->[0]->{'saved_sql'};
}
if ($query =~ /WHERE/i){
$query .= $deftext;
}
else {
$deftext =~ s/AND/WHERE/;
$query .= $deftext;
}
}
if ($totals) {
my $groupby;
my @totcolumns = split( ',', $totals );
foreach my $total (@totcolumns) {
if ( $total =~ /\((.*)\)/ ) {
if ( $groupby eq '' ) {
$groupby = " GROUP BY $1";
}
else {
$groupby .= ",$1";
}
}
}
$query .= $groupby;
}
if ($orderby) {
$query .= $orderby;
}
return ($query);
}
=head2 get_criteria($area,$cgi);
Returns an arraref to hashrefs suitable for using in a tmpl_loop. With the criteria and available values.
=cut
sub get_criteria {
my ($area,$cgi) = @_;
my $dbh = C4::Context->dbh();
# have to do someting here to know if its dropdown, free text, date etc
my %criteria = (
CIRC => [ 'statistics.type', 'borrowers.categorycode', 'statistics.branch',
'biblioitems.publicationyear|date', 'items.dateaccessioned|date' ],
CAT => [ 'items.itemnumber|textrange', 'items.biblionumber|textrange',
'items.barcode|textrange', 'biblio.frameworkcode',
'items.holdingbranch', 'items.homebranch',
'biblio.datecreated|daterange', 'biblio.timestamp|daterange',
'items.onloan|daterange', 'items.ccode',
'items.itemcallnumber|textrange', 'items.itype', 'items.itemlost',
'items.location' ],
PAT => [ 'borrowers.branchcode', 'borrowers.categorycode' ],
ACQ => ['aqorders.datereceived|date'],
ACC => [ 'borrowers.branchcode', 'borrowers.categorycode' ],
SER => ['subscription.startdate|date', 'subscription.enddate|date', 'subscription.periodicity', 'subscription.callnumber', 'subscription.location', 'subscription.branchcode'],
);
# Adds itemtypes to criteria, according to the syspref
if ( C4::Context->preference('item-level_itypes') ) {
unshift @{ $criteria{'CIRC'} }, 'items.itype';
unshift @{ $criteria{'CAT'} }, 'items.itype';
} else {
unshift @{ $criteria{'CIRC'} }, 'biblioitems.itemtype';
unshift @{ $criteria{'CAT'} }, 'biblioitems.itemtype';
}
my $crit = $criteria{$area};
my $column_defs = _get_column_defs($cgi);
my @criteria_array;
foreach my $localcrit (@$crit) {
my ( $value, $type ) = split( /\|/, $localcrit );
my ( $table, $column ) = split( /\./, $value );
if ($type eq 'textrange') {
my %temp;
$temp{'name'} = $value;
$temp{'from'} = "from_" . $value;
$temp{'to'} = "to_" . $value;
$temp{'textrange'} = 1;
$temp{'description'} = $column_defs->{$value};
push @criteria_array, \%temp;
}
elsif ($type eq 'date') {
my %temp;
$temp{'name'} = $value;
$temp{'date'} = 1;
$temp{'description'} = $column_defs->{$value};
push @criteria_array, \%temp;
}
elsif ($type eq 'daterange') {
my %temp;
$temp{'name'} = $value;
$temp{'from'} = "from_" . $value;
$temp{'to'} = "to_" . $value;
$temp{'daterange'} = 1;
$temp{'description'} = $column_defs->{$value};
push @criteria_array, \%temp;
}
else {
my $query =
"SELECT distinct($column) as availablevalues FROM $table";
my $sth = $dbh->prepare($query);
$sth->execute();
my @values;
# push the runtime choosing option
my $list;
$list='branches' if $column eq 'branchcode' or $column eq 'holdingbranch' or $column eq 'homebranch';
$list='categorycode' if $column eq 'categorycode';
$list='itemtypes' if $column eq 'itype';
$list='ccode' if $column eq 'ccode';
# TODO : improve to let the librarian choose the description at runtime
push @values, {
availablevalues => "<<$column" . ( $list ? "|$list" : '' ) . ">>",
display_value => "<<$column" . ( $list ? "|$list" : '' ) . ">>",
};
while ( my $row = $sth->fetchrow_hashref() ) {
if ($row->{'availablevalues'} eq '') { $row->{'default'} = 1 }
else { $row->{display_value} = _get_display_value( $row->{'availablevalues'}, $column ); }
push @values, $row;
}
$sth->finish();
my %temp;
$temp{'name'} = $value;
$temp{'description'} = $column_defs->{$value};
$temp{'values'} = \@values;
push @criteria_array, \%temp;
}
}
return ( \@criteria_array );
}
sub nb_rows {
my $sql = shift or return;
my $sth = C4::Context->dbh->prepare($sql);
$sth->execute();
my $n = 0;
# Loop through the complete results, fetching 1,000 rows at a time. This
# lowers memory requirements but increases execution time.
while (my $rows = $sth->fetchall_arrayref(undef, 1000)) {
$n += @$rows;
}
return $n;
}
=head2 execute_query
($sth, $error) = execute_query($sql, $offset, $limit[, \@sql_params])
This function returns a DBI statement handler from which the caller can
fetch the results of the SQL passed via C<$sql>.
If passed any query other than a SELECT, or if there is a DB error,
C<$errors> is returned, and is a hashref containing the error after this
manner:
C<$error->{'sqlerr'}> contains the offending SQL keyword.
C<$error->{'queryerr'}> contains the native db engine error returned
for the query.
C<$offset>, and C<$limit> are required parameters.
C<\@sql_params> is an optional list of parameter values to paste in.
The caller is responsible for making sure that C<$sql> has placeholders
and that the number placeholders matches the number of parameters.
=cut
# returns $sql, $offset, $limit
# $sql returned will be transformed to:
# ~ remove any LIMIT clause
# ~ repace SELECT clause w/ SELECT count(*)
sub select_2_select_count {
# Modify the query passed in to create a count query... (I think this covers all cases -crn)
my ($sql) = strip_limit(shift) or return;
$sql =~ s/\bSELECT\W+(?:\w+\W+){1,}?FROM\b|\bSELECT\W\*\WFROM\b/SELECT count(*) FROM /ig;
return $sql;
}
# This removes the LIMIT from the query so that a custom one can be specified.
# Usage:
# ($new_sql, $offset, $limit) = strip_limit($sql);
#
# Where:
# $sql is the query to modify
# $new_sql is the resulting query
# $offset is the offset value, if the LIMIT was the two-argument form,
# 0 if it wasn't otherwise given.
# $limit is the limit value
#
# Notes:
# * This makes an effort to not break subqueries that have their own
# LIMIT specified. It does that by only removing a LIMIT if it comes after
# a WHERE clause (which isn't perfect, but at least should make more cases
# work - subqueries with a limit in the WHERE will still break.)
# * If your query doesn't have a WHERE clause then all LIMITs will be
# removed. This may break some subqueries, but is hopefully rare enough
# to not be a big issue.
sub strip_limit {
my ($sql) = @_;
return unless $sql;
return ($sql, 0, undef) unless $sql =~ /\bLIMIT\b/i;
# Two options: if there's no WHERE clause in the SQL, we simply capture
# any LIMIT that's there. If there is a WHERE, we make sure that we only
# capture a LIMIT after the last one. This prevents stomping on subqueries.
if ($sql !~ /\bWHERE\b/i) {
(my $res = $sql) =~ s/\bLIMIT\b\s*(\d+)(\s*\,\s*(\d+))?\s*/ /ig;
return ($res, (defined $2 ? $1 : 0), (defined $3 ? $3 : $1));
} else {
my $res = $sql;
$res =~ m/.*\bWHERE\b/gsi;
$res =~ s/\G(.*)\bLIMIT\b\s*(\d+)(\s*\,\s*(\d+))?\s*/$1 /is;
return ($res, (defined $3 ? $2 : 0), (defined $4 ? $4 : $2));
}
}
sub execute_query {
my ( $sql, $offset, $limit, $sql_params, $report_id ) = @_;
$sql_params = [] unless defined $sql_params;
# check parameters
unless ($sql) {
carp "execute_query() called without SQL argument";
return;
}
$offset = 0 unless $offset;
$limit = 999999 unless $limit;
$debug and print STDERR "execute_query($sql, $offset, $limit)\n";
if ($sql =~ /;?\W?(UPDATE|DELETE|DROP|INSERT|SHOW|CREATE)\W/i) {
return (undef, { sqlerr => $1} );
} elsif ($sql !~ /^\s*SELECT\b\s*/i) {
return (undef, { queryerr => 'Missing SELECT'} );
}
my ($useroffset, $userlimit);
# Grab offset/limit from user supplied LIMIT and drop the LIMIT so we can control pagination
($sql, $useroffset, $userlimit) = strip_limit($sql);
$debug and warn sprintf "User has supplied (OFFSET,) LIMIT = %s, %s",
$useroffset,
(defined($userlimit ) ? $userlimit : 'UNDEF');
$offset += $useroffset;
if (defined($userlimit)) {
if ($offset + $limit > $userlimit ) {
$limit = $userlimit - $offset;
} elsif ( ! $offset && $limit < $userlimit ) {
$limit = $userlimit;
}
}
$sql .= " LIMIT ?, ?";
my $dbh = C4::Context->dbh;
$dbh->do( 'UPDATE saved_sql SET last_run = NOW() WHERE id = ?', undef, $report_id ) if $report_id;
my $sth = $dbh->prepare($sql);
$sth->execute(@$sql_params, $offset, $limit);
return ( $sth, { queryerr => $sth->errstr } ) if ($sth->err);
return ( $sth );
}
=head2 save_report($sql,$name,$type,$notes)
Given some sql and a name this will saved it so that it can reused
Returns id of the newly created report
=cut
sub save_report {
my ($fields) = @_;
my $borrowernumber = $fields->{borrowernumber};
my $sql = $fields->{sql};
my $name = $fields->{name};
my $type = $fields->{type};
my $notes = $fields->{notes};
my $area = $fields->{area};
my $group = $fields->{group};
my $subgroup = $fields->{subgroup};
my $cache_expiry = $fields->{cache_expiry} || 300;
my $public = $fields->{public};
my $dbh = C4::Context->dbh();
$sql =~ s/(\s*\;\s*)$//; # removes trailing whitespace and /;/
my $query = "INSERT INTO saved_sql (borrowernumber,date_created,last_modified,savedsql,report_name,report_area,report_group,report_subgroup,type,notes,cache_expiry,public) VALUES (?,now(),now(),?,?,?,?,?,?,?,?,?)";
$dbh->do($query, undef, $borrowernumber, $sql, $name, $area, $group, $subgroup, $type, $notes, $cache_expiry, $public);
my $id = $dbh->selectrow_array("SELECT max(id) FROM saved_sql WHERE borrowernumber=? AND report_name=?", undef,
$borrowernumber, $name);
return $id;
}
sub update_sql {
my $id = shift || croak "No Id given";
my $fields = shift;
my $sql = $fields->{sql};
my $name = $fields->{name};
my $notes = $fields->{notes};
my $group = $fields->{group};
my $subgroup = $fields->{subgroup};
my $cache_expiry = $fields->{cache_expiry};
my $public = $fields->{public};
if( $cache_expiry >= 2592000 ){
die "Please specify a cache expiry less than 30 days\n";
}
my $dbh = C4::Context->dbh();
$sql =~ s/(\s*\;\s*)$//; # removes trailing whitespace and /;/
my $query = "UPDATE saved_sql SET savedsql = ?, last_modified = now(), report_name = ?, report_group = ?, report_subgroup = ?, notes = ?, cache_expiry = ?, public = ? WHERE id = ? ";
$dbh->do($query, undef, $sql, $name, $group, $subgroup, $notes, $cache_expiry, $public, $id );
}
sub store_results {
my ( $id, $json ) = @_;
my $dbh = C4::Context->dbh();
$dbh->do(q|
INSERT INTO saved_reports ( report_id, report, date_run ) VALUES ( ?, ?, NOW() );
|, undef, $id, $json );
}
sub format_results {
my ( $id ) = @_;
my $dbh = C4::Context->dbh();
my ( $report_name, $notes, $json, $date_run ) = $dbh->selectrow_array(q|
SELECT ss.report_name, ss.notes, sr.report, sr.date_run
FROM saved_sql ss
LEFT JOIN saved_reports sr ON sr.report_id = ss.id
WHERE sr.id = ?
|, undef, $id);
return {
report_name => $report_name,
notes => $notes,
results => from_json( $json ),
date_run => $date_run,
};
}
sub delete_report {
my (@ids) = @_;
return unless @ids;
foreach my $id (@ids) {
my $data = Koha::Reports->find($id);
logaction( "REPORTS", "DELETE", $id, $data->report_name." | ".$data->savedsql ) if C4::Context->preference("ReportsLog");
}
my $dbh = C4::Context->dbh;
my $query = 'DELETE FROM saved_sql WHERE id IN (' . join( ',', ('?') x @ids ) . ')';
my $sth = $dbh->prepare($query);
return $sth->execute(@ids);
}
sub get_saved_reports_base_query {
my $area_name_sql_snippet = get_area_name_sql_snippet;
return <<EOQ;
SELECT s.*, $area_name_sql_snippet, av_g.lib AS groupname, av_sg.lib AS subgroupname,
b.firstname AS borrowerfirstname, b.surname AS borrowersurname
FROM saved_sql s
LEFT JOIN saved_reports r ON r.report_id = s.id
LEFT OUTER JOIN authorised_values av_g ON (av_g.category = 'REPORT_GROUP' AND av_g.authorised_value = s.report_group)
LEFT OUTER JOIN authorised_values av_sg ON (av_sg.category = 'REPORT_SUBGROUP' AND av_sg.lib_opac = s.report_group AND av_sg.authorised_value = s.report_subgroup)
LEFT OUTER JOIN borrowers b USING (borrowernumber)
EOQ
}
sub get_saved_reports {
# $filter is either { date => $d, author => $a, keyword => $kw, }
# or $keyword. Optional.
my ($filter) = @_;
$filter = { keyword => $filter } if $filter && !ref( $filter );
my ($group, $subgroup) = @_;
my $dbh = C4::Context->dbh();
my $query = get_saved_reports_base_query;
my (@cond,@args);
if ($filter) {
if (my $date = $filter->{date}) {
$date = eval { output_pref( { dt => dt_from_string( $date ), dateonly => 1, dateformat => 'iso' }); };
push @cond, "DATE(last_modified) = ? OR
DATE(last_run) = ?";
push @args, $date, $date, $date;
}
if (my $author = $filter->{author}) {
$author = "%$author%";
push @cond, "surname LIKE ? OR
firstname LIKE ?";
push @args, $author, $author;
}
if (my $keyword = $filter->{keyword}) {
push @cond, q|
report LIKE ?
OR report_name LIKE ?
OR notes LIKE ?
OR savedsql LIKE ?
OR s.id = ?
|;
push @args, "%$keyword%", "%$keyword%", "%$keyword%", "%$keyword%", $keyword;
}
if ($filter->{group}) {
push @cond, "report_group = ?";
push @args, $filter->{group};
}
if ($filter->{subgroup}) {
push @cond, "report_subgroup = ?";
push @args, $filter->{subgroup};
}
}
$query .= " WHERE ".join( " AND ", map "($_)", @cond ) if @cond;
$query .= " GROUP BY s.id, s.borrowernumber, s.date_created, s.last_modified, s.savedsql, s.last_run, s.report_name, s.type, s.notes, s.cache_expiry, s.public, s.report_area, s.report_group, s.report_subgroup, s.mana_id, av_g.lib, av_sg.lib, b.firstname, b.surname";
$query .= " ORDER by date_created";
my $result = $dbh->selectall_arrayref($query, {Slice => {}}, @args);
return $result;
}
=head2 get_column_type($column)
This takes a column name of the format table.column and will return what type it is
(free text, set values, date)
=cut
sub get_column_type {
my ($tablecolumn) = @_;
my ($table,$column) = split(/\./,$tablecolumn);
my $dbh = C4::Context->dbh();
my $catalog;
my $schema;
# mysql doesn't support a column selection, set column to %
my $tempcolumn='%';
my $sth = $dbh->column_info( $catalog, $schema, $table, $tempcolumn ) || die $dbh->errstr;
while (my $info = $sth->fetchrow_hashref()){
if ($info->{'COLUMN_NAME'} eq $column){
#column we want
if ($info->{'TYPE_NAME'} eq 'CHAR' || $info->{'TYPE_NAME'} eq 'VARCHAR'){
$info->{'TYPE_NAME'} = 'distinct';
}
return $info->{'TYPE_NAME'};
}
}
}
=head2 get_distinct_values($column)
Given a column name, return an arrary ref of hashrefs suitable for use as a tmpl_loop
with the distinct values of the column
=cut
sub get_distinct_values {
my ($tablecolumn) = @_;
my ($table,$column) = split(/\./,$tablecolumn);
my $dbh = C4::Context->dbh();
my $query =
"SELECT distinct($column) as availablevalues FROM $table";
my $sth = $dbh->prepare($query);
$sth->execute();
return $sth->fetchall_arrayref({});
}
sub save_dictionary {
my ( $name, $description, $sql, $area ) = @_;
my $dbh = C4::Context->dbh();
my $query = "INSERT INTO reports_dictionary (name,description,saved_sql,report_area,date_created,date_modified)
VALUES (?,?,?,?,now(),now())";
my $sth = $dbh->prepare($query);
$sth->execute($name,$description,$sql,$area) || return 0;
return 1;
}
sub get_from_dictionary {
my ( $area, $id ) = @_;
my $dbh = C4::Context->dbh();
my $area_name_sql_snippet = get_area_name_sql_snippet;
my $query = <<EOQ;
SELECT d.*, $area_name_sql_snippet
FROM reports_dictionary d
EOQ
if ($area) {
$query .= " WHERE report_area = ?";
} elsif ($id) {
$query .= " WHERE id = ?";
}
my $sth = $dbh->prepare($query);
if ($id) {
$sth->execute($id);
} elsif ($area) {
$sth->execute($area);
} else {
$sth->execute();
}
my @loop;
while ( my $data = $sth->fetchrow_hashref() ) {
push @loop, $data;
}
return ( \@loop );
}
sub delete_definition {
my ($id) = @_ or return;
my $dbh = C4::Context->dbh();
my $query = "DELETE FROM reports_dictionary WHERE id = ?";
my $sth = $dbh->prepare($query);
$sth->execute($id);
}
=head2 get_sql($report_id)
Given a report id, return the SQL statement for that report.
Otherwise, it just returns.
=cut
sub get_sql {
my ($id) = @_ or return;
my $dbh = C4::Context->dbh();
my $query = "SELECT * FROM saved_sql WHERE id = ?";
my $sth = $dbh->prepare($query);
$sth->execute($id);
my $data=$sth->fetchrow_hashref();
return $data->{'savedsql'};
}
sub get_results {
my ( $report_id ) = @_;
my $dbh = C4::Context->dbh;
return $dbh->selectall_arrayref(q|
SELECT id, report, date_run
FROM saved_reports
WHERE report_id = ?
|, { Slice => {} }, $report_id);
}
sub _get_column_defs {
my ($cgi) = @_;
my %columns;
my $columns_def_file = "columns.def";
my $htdocs = C4::Context->config('intrahtdocs');
my $section = 'intranet';
# We need the theme and the lang
# Since columns.def is not in the modules directory, we cannot sent it for the $tmpl var
my ($theme, $lang, $availablethemes) = C4::Templates::themelanguage($htdocs, 'about.tt', $section, $cgi);
my $full_path_to_columns_def_file="$htdocs/$theme/$lang/$columns_def_file";
open (my $fh, '<:encoding(utf-8)', $full_path_to_columns_def_file);
while ( my $input = <$fh> ){
chomp $input;
if ( $input =~ m|<field name="(.*)">(.*)</field>| ) {
my ( $field, $translation ) = ( $1, $2 );
$columns{$field} = $translation;
}
}
close $fh;
return \%columns;
}
=head2 GetReservedAuthorisedValues
my %reserved_authorised_values = GetReservedAuthorisedValues();
Returns a hash containig all reserved words
=cut
sub GetReservedAuthorisedValues {
my %reserved_authorised_values =
map { $_ => 1 } ( 'date',
'branches',
'itemtypes',
'cn_source',
'categorycode',
'biblio_framework' );
return \%reserved_authorised_values;
}
=head2 IsAuthorisedValueValid
my $is_valid_ath_value = IsAuthorisedValueValid($authorised_value)
Returns 1 if $authorised_value is on the reserved authorised values list or
in the authorised value categories defined in
=cut
sub IsAuthorisedValueValid {
my $authorised_value = shift;
my $reserved_authorised_values = GetReservedAuthorisedValues();
if ( exists $reserved_authorised_values->{$authorised_value} ||
Koha::AuthorisedValues->search({ category => $authorised_value })->count ) {
return 1;
}
return 0;
}
=head2 GetParametersFromSQL
my @sql_parameters = GetParametersFromSQL($sql)
Returns an arrayref of hashes containing the keys name and authval
=cut
sub GetParametersFromSQL {
my $sql = shift ;
my @split = split(/<<|>>/,$sql);
my @sql_parameters = ();
for ( my $i = 0; $i < ($#split/2) ; $i++ ) {
my ($name,$authval) = split(/\|/,$split[$i*2+1]);
push @sql_parameters, { 'name' => $name, 'authval' => $authval };
}
return \@sql_parameters;
}
=head2 ValidateSQLParameters
my @problematic_parameters = ValidateSQLParameters($sql)
Returns an arrayref of hashes containing the keys name and authval of
those SQL parameters that do not correspond to valid authorised names
=cut
sub ValidateSQLParameters {
my $sql = shift;
my @problematic_parameters = ();
my $sql_parameters = GetParametersFromSQL($sql);
foreach my $sql_parameter (@$sql_parameters) {
if ( defined $sql_parameter->{'authval'} ) {
push @problematic_parameters, $sql_parameter unless
IsAuthorisedValueValid($sql_parameter->{'authval'});
}
}
return \@problematic_parameters;
}
=head2 EmailReport
my ( $emails, $arrayrefs ) = EmailReport($report_id, $letter_code, $module, $branch, $email)
Take a report and use it to process a Template Toolkit formatted notice
Returns arrayrefs containing prepared letters and errors respectively
=cut
sub EmailReport {
my $params = shift;
my $report_id = $params->{report_id};
my $from = $params->{from};
my $email = $params->{email};
my $module = $params->{module};
my $code = $params->{code};
my $branch = $params->{branch} || "";
my @errors = ();
my @emails = ();
return ( undef, [{ FATAL => "MISSING_PARAMS" }] ) unless ($report_id && $module && $code);
return ( undef, [{ FATAL => "NO_LETTER" }] ) unless
my $letter = Koha::Notice::Templates->find({
module => $module,
code => $code,
branchcode => $branch,
message_transport_type => 'email',
});
$letter = $letter->unblessed;
my $report = Koha::Reports->find( $report_id );
my $sql = $report->savedsql;
return ( { FATAL => "NO_REPORT" } ) unless $sql;
my ( $sth, $errors ) = execute_query( $sql ); #don't pass offset or limit, hardcoded limit of 999,999 will be used
return ( undef, [{ FATAL => "REPORT_FAIL" }] ) if $errors;
my $counter = 1;
my $template = $letter->{content};
while ( my $row = $sth->fetchrow_hashref() ) {
my $email;
my $err_count = scalar @errors;
push ( @errors, { NO_BOR_COL => $counter } ) unless defined $row->{borrowernumber};
push ( @errors, { NO_EMAIL_COL => $counter } ) unless ( (defined $email && defined $row->{$email}) || defined $row->{email} );
push ( @errors, { NO_FROM_COL => $counter } ) unless defined ( $from || $row->{from} );
push ( @errors, { NO_BOR => $row->{borrowernumber} } ) unless Koha::Patrons->find({borrowernumber=>$row->{borrowernumber}});
my $from_address = $from || $row->{from};
my $to_address = $email ? $row->{$email} : $row->{email};
push ( @errors, { NOT_PARSE => $counter } ) unless my $content = _process_row_TT( $row, $template );
$counter++;
next if scalar @errors > $err_count; #If any problems, try next
$letter->{content} = $content;
$email->{borrowernumber} = $row->{borrowernumber};
$email->{letter} = $letter;
$email->{from_address} = $from_address;
$email->{to_address} = $to_address;
push ( @emails, $email );
}
return ( \@emails, \@errors );
}
=head2 ProcessRowTT
my $content = ProcessRowTT($row_hashref, $template);
Accepts a hashref containing values and processes them against Template Toolkit
to produce content
=cut
sub _process_row_TT {
my ($row, $template) = @_;
return 0 unless ($row && $template);
my $content;
my $processor = Template->new();
$processor->process( \$template, $row, \$content);
return $content;
}
sub _get_display_value {
my ( $original_value, $column ) = @_;
if ( $column eq 'periodicity' ) {
my $dbh = C4::Context->dbh();
my $query = "SELECT description FROM subscription_frequencies WHERE id = ?";
my $sth = $dbh->prepare($query);
$sth->execute($original_value);
return $sth->fetchrow;
}
return $original_value;
}
=head3 convert_sql
my $updated_sql = C4::Reports::Guided::convert_sql( $sql );
Convert a sql query using biblioitems.marcxml to use the new
biblio_metadata.metadata field instead
=cut
sub convert_sql {
my ( $sql ) = @_;
my $updated_sql = $sql;
if ( $sql =~ m|biblioitems| and $sql =~ m|marcxml| ) {
$updated_sql =~ s|biblioitems|biblio_metadata|g;
$updated_sql =~ s|marcxml|metadata|g;
}
return $updated_sql;
}
1;
__END__
=head1 AUTHOR
Chris Cormack <crc@liblime.com>
=cut