C4/Reports/Guided.pm

   1 package C4::Reports::Guided;
   2
   3 # Copyright 2007 Liblime Ltd
   4 #
   5 # This file is part of Koha.
   6 #
   7 # Koha is free software; you can redistribute it and/or modify it
   8 # under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # Koha is distributed in the hope that it will be useful, but
  13 # WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  19
  20 use Modern::Perl;
  21 use CGI qw ( -utf8 );
  22 use Carp;
  23 use JSON qw( from_json );
  24
  25 use vars qw(@ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
  26 use C4::Context;
  27 use C4::Templates qw/themelanguage/;
  28 use C4::Koha;
  29 use Koha::DateUtils;
  30 use C4::Output;
  31 use C4::Debug;
  32 use C4::Log;
  33
  34 use Koha::AuthorisedValues;
  35 use Koha::Patron::Categories;
  36
  37 BEGIN {
  38     require Exporter;
  39     @ISA    = qw(Exporter);
  40     @EXPORT = qw(
  41       get_report_types get_report_areas get_report_groups get_columns build_query get_criteria
  42       save_report get_saved_reports execute_query get_saved_report create_compound run_compound
  43       get_column_type get_distinct_values save_dictionary get_from_dictionary
  44       delete_definition delete_report format_results get_sql
  45       nb_rows update_sql
  46       GetReservedAuthorisedValues
  47       GetParametersFromSQL
  48       IsAuthorisedValueValid
  49       ValidateSQLParameters
  50       nb_rows update_sql
  51     );
  52 }
  53
  54 =head1 NAME
  55
  56 C4::Reports::Guided - Module for generating guided reports
  57
  58 =head1 SYNOPSIS
  59
  60   use C4::Reports::Guided;
  61
  62 =head1 DESCRIPTION
  63
  64 =cut
  65
  66 =head1 METHODS
  67
  68 =head2 get_report_areas
  69
  70 This will return a list of all the available report areas
  71
  72 =cut
  73
  74 sub get_area_name_sql_snippet {
  75     my @REPORT_AREA = (
  76         [CIRC => "Circulation"],
  77         [CAT  => "Catalogue"],
  78         [PAT  => "Patrons"],
  79         [ACQ  => "Acquisition"],
  80         [ACC  => "Accounts"],
  81         [SER  => "Serials"],
  82     );
  83
  84     return "CASE report_area " .
  85     join (" ", map "WHEN '$_->[0]' THEN '$_->[1]'", @REPORT_AREA) .
  86     " END AS areaname";
  87 }
  88
  89 sub get_report_areas {
  90
  91     my $report_areas = [ 'CIRC', 'CAT', 'PAT', 'ACQ', 'ACC', 'SER' ];
  92
  93     return $report_areas;
  94 }
  95
  96 sub get_table_areas {
  97     return (
  98     CIRC => [ 'borrowers', 'statistics', 'items', 'biblioitems' ],
  99     CAT  => [ 'items', 'biblioitems', 'biblio' ],
 100     PAT  => ['borrowers'],
 101     ACQ  => [ 'aqorders', 'biblio', 'items' ],
 102     ACC  => [ 'borrowers', 'accountlines' ],
 103     SER  => [ 'serial', 'serialitems', 'subscription', 'subscriptionhistory', 'subscriptionroutinglist', 'biblioitems', 'biblio', 'aqbooksellers' ],
 104     );
 105 }
 106
 107 =head2 get_report_types
 108
 109 This will return a list of all the available report types
 110
 111 =cut
 112
 113 sub get_report_types {
 114     my $dbh = C4::Context->dbh();
 115
 116     # FIXME these should be in the database perhaps
 117     my @reports = ( 'Tabular', 'Summary', 'Matrix' );
 118     my @reports2;
 119     for ( my $i = 0 ; $i < 3 ; $i++ ) {
 120         my %hashrep;
 121         $hashrep{id}   = $i + 1;
 122         $hashrep{name} = $reports[$i];
 123         push @reports2, \%hashrep;
 124     }
 125     return ( \@reports2 );
 126
 127 }
 128
 129 =head2 get_report_groups
 130
 131 This will return a list of all the available report areas with groups
 132
 133 =cut
 134
 135 sub get_report_groups {
 136     my $dbh = C4::Context->dbh();
 137
 138     my $groups = GetAuthorisedValues('REPORT_GROUP');
 139     my $subgroups = GetAuthorisedValues('REPORT_SUBGROUP');
 140
 141     my %groups_with_subgroups = map { $_->{authorised_value} => {
 142                         name => $_->{lib},
 143                         groups => {}
 144                     } } @$groups;
 145     foreach (@$subgroups) {
 146         my $sg = $_->{authorised_value};
 147         my $g = $_->{lib_opac}
 148           or warn( qq{REPORT_SUBGROUP "$sg" without REPORT_GROUP (lib_opac)} ),
 149              next;
 150         my $g_sg = $groups_with_subgroups{$g}
 151           or warn( qq{REPORT_SUBGROUP "$sg" with invalid REPORT_GROUP "$g"} ),
 152              next;
 153         $g_sg->{subgroups}{$sg} = $_->{lib};
 154     }
 155     return \%groups_with_subgroups
 156 }
 157
 158 =head2 get_all_tables
 159
 160 This will return a list of all tables in the database
 161
 162 =cut
 163
 164 sub get_all_tables {
 165     my $dbh   = C4::Context->dbh();
 166     my $query = "SHOW TABLES";
 167     my $sth   = $dbh->prepare($query);
 168     $sth->execute();
 169     my @tables;
 170     while ( my $data = $sth->fetchrow_arrayref() ) {
 171         push @tables, $data->[0];
 172     }
 173     $sth->finish();
 174     return ( \@tables );
 175
 176 }
 177
 178 =head2 get_columns($area)
 179
 180 This will return a list of all columns for a report area
 181
 182 =cut
 183
 184 sub get_columns {
 185
 186     # this calls the internal function _get_columns
 187     my ( $area, $cgi ) = @_;
 188     my %table_areas = get_table_areas;
 189     my $tables = $table_areas{$area}
 190       or die qq{Unsuported report area "$area"};
 191
 192     my @allcolumns;
 193     my $first = 1;
 194     foreach my $table (@$tables) {
 195         my @columns = _get_columns($table,$cgi, $first);
 196         $first = 0;
 197         push @allcolumns, @columns;
 198     }
 199     return ( \@allcolumns );
 200 }
 201
 202 sub _get_columns {
 203     my ($tablename,$cgi, $first) = @_;
 204     my $dbh         = C4::Context->dbh();
 205     my $sth         = $dbh->prepare("show columns from $tablename");
 206     $sth->execute();
 207     my @columns;
 208         my $column_defs = _get_column_defs($cgi);
 209         my %tablehash;
 210         $tablehash{'table'}=$tablename;
 211     $tablehash{'__first__'} = $first;
 212         push @columns, \%tablehash;
 213     while ( my $data = $sth->fetchrow_arrayref() ) {
 214         my %temphash;
 215         $temphash{'name'}        = "$tablename.$data->[0]";
 216         $temphash{'description'} = $column_defs->{"$tablename.$data->[0]"};
 217         push @columns, \%temphash;
 218     }
 219     $sth->finish();
 220     return (@columns);
 221 }
 222
 223 =head2 build_query($columns,$criteria,$orderby,$area)
 224
 225 This will build the sql needed to return the results asked for,
 226 $columns is expected to be of the format tablename.columnname.
 227 This is what get_columns returns.
 228
 229 =cut
 230
 231 sub build_query {
 232     my ( $columns, $criteria, $orderby, $area, $totals, $definition ) = @_;
 233
 234     my %keys = (
 235         CIRC => [ 'statistics.borrowernumber=borrowers.borrowernumber',
 236                   'items.itemnumber = statistics.itemnumber',
 237                   'biblioitems.biblioitemnumber = items.biblioitemnumber' ],
 238         CAT  => [ 'items.biblioitemnumber=biblioitems.biblioitemnumber',
 239                   'biblioitems.biblionumber=biblio.biblionumber' ],
 240         PAT  => [],
 241         ACQ  => [ 'aqorders.biblionumber=biblio.biblionumber',
 242                   'biblio.biblionumber=items.biblionumber' ],
 243         ACC  => ['borrowers.borrowernumber=accountlines.borrowernumber'],
 244         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'],
 245     );
 246
 247
 248 ### $orderby
 249     my $keys   = $keys{$area};
 250     my %table_areas = get_table_areas;
 251     my $tables = $table_areas{$area};
 252
 253     my $sql =
 254       _build_query( $tables, $columns, $criteria, $keys, $orderby, $totals, $definition );
 255     return ($sql);
 256 }
 257
 258 sub _build_query {
 259     my ( $tables, $columns, $criteria, $keys, $orderby, $totals, $definition) = @_;
 260 ### $orderby
 261     # $keys is an array of joining constraints
 262     my $dbh           = C4::Context->dbh();
 263     my $joinedtables  = join( ',', @$tables );
 264     my $joinedcolumns = join( ',', @$columns );
 265     my $query =
 266       "SELECT $totals $joinedcolumns FROM $tables->[0] ";
 267         for (my $i=1;$i<@$tables;$i++){
 268                 $query .= "LEFT JOIN $tables->[$i] on ($keys->[$i-1]) ";
 269         }
 270
 271     if ($criteria) {
 272                 $criteria =~ s/AND/WHERE/;
 273         $query .= " $criteria";
 274     }
 275         if ($definition){
 276                 my @definitions = split(',',$definition);
 277                 my $deftext;
 278                 foreach my $def (@definitions){
 279                         my $defin=get_from_dictionary('',$def);
 280                         $deftext .=" ".$defin->[0]->{'saved_sql'};
 281                 }
 282                 if ($query =~ /WHERE/i){
 283                         $query .= $deftext;
 284                 }
 285                 else {
 286                         $deftext  =~ s/AND/WHERE/;
 287                         $query .= $deftext;
 288                 }
 289         }
 290     if ($totals) {
 291         my $groupby;
 292         my @totcolumns = split( ',', $totals );
 293         foreach my $total (@totcolumns) {
 294             if ( $total =~ /\((.*)\)/ ) {
 295                 if ( $groupby eq '' ) {
 296                     $groupby = " GROUP BY $1";
 297                 }
 298                 else {
 299                     $groupby .= ",$1";
 300                 }
 301             }
 302         }
 303         $query .= $groupby;
 304     }
 305     if ($orderby) {
 306         $query .= $orderby;
 307     }
 308     return ($query);
 309 }
 310
 311 =head2 get_criteria($area,$cgi);
 312
 313 Returns an arraref to hashrefs suitable for using in a tmpl_loop. With the criteria and available values.
 314
 315 =cut
 316
 317 sub get_criteria {
 318     my ($area,$cgi) = @_;
 319     my $dbh    = C4::Context->dbh();
 320
 321     # have to do someting here to know if its dropdown, free text, date etc
 322     my %criteria = (
 323         CIRC => [ 'statistics.type', 'borrowers.categorycode', 'statistics.branch',
 324                   'biblioitems.publicationyear|date', 'items.dateaccessioned|date' ],
 325         CAT  => [ 'items.itemnumber|textrange', 'items.biblionumber|textrange',
 326                   'items.barcode|textrange', 'biblio.frameworkcode',
 327                   'items.holdingbranch', 'items.homebranch',
 328                   'biblio.datecreated|daterange', 'biblio.timestamp|daterange',
 329                   'items.onloan|daterange', 'items.ccode',
 330                   'items.itemcallnumber|textrange', 'items.itype', 'items.itemlost',
 331                   'items.location' ],
 332         PAT  => [ 'borrowers.branchcode', 'borrowers.categorycode' ],
 333         ACQ  => ['aqorders.datereceived|date'],
 334         ACC  => [ 'borrowers.branchcode', 'borrowers.categorycode' ],
 335         SER  => ['subscription.startdate|date', 'subscription.enddate|date', 'subscription.periodicity', 'subscription.callnumber', 'subscription.location', 'subscription.branchcode'],
 336     );
 337
 338     # Adds itemtypes to criteria, according to the syspref
 339     if ( C4::Context->preference('item-level_itypes') ) {
 340         unshift @{ $criteria{'CIRC'} }, 'items.itype';
 341         unshift @{ $criteria{'CAT'} }, 'items.itype';
 342     } else {
 343         unshift @{ $criteria{'CIRC'} }, 'biblioitems.itemtype';
 344         unshift @{ $criteria{'CAT'} }, 'biblioitems.itemtype';
 345     }
 346
 347
 348     my $crit   = $criteria{$area};
 349     my $column_defs = _get_column_defs($cgi);
 350     my @criteria_array;
 351     foreach my $localcrit (@$crit) {
 352         my ( $value, $type )   = split( /\|/, $localcrit );
 353         my ( $table, $column ) = split( /\./, $value );
 354         if ($type eq 'textrange') {
 355             my %temp;
 356             $temp{'name'}        = $value;
 357             $temp{'from'}        = "from_" . $value;
 358             $temp{'to'}          = "to_" . $value;
 359             $temp{'textrange'}   = 1;
 360             $temp{'description'} = $column_defs->{$value};
 361             push @criteria_array, \%temp;
 362         }
 363         elsif ($type eq 'date') {
 364             my %temp;
 365             $temp{'name'}        = $value;
 366             $temp{'date'}        = 1;
 367             $temp{'description'} = $column_defs->{$value};
 368             push @criteria_array, \%temp;
 369         }
 370         elsif ($type eq 'daterange') {
 371             my %temp;
 372             $temp{'name'}        = $value;
 373             $temp{'from'}        = "from_" . $value;
 374             $temp{'to'}          = "to_" . $value;
 375             $temp{'daterange'}   = 1;
 376             $temp{'description'} = $column_defs->{$value};
 377             push @criteria_array, \%temp;
 378         }
 379         else {
 380             my $query =
 381             "SELECT distinct($column) as availablevalues FROM $table";
 382             my $sth = $dbh->prepare($query);
 383             $sth->execute();
 384             my @values;
 385             # push the runtime choosing option
 386             my $list;
 387             $list='branches' if $column eq 'branchcode' or $column eq 'holdingbranch' or $column eq 'homebranch';
 388             $list='categorycode' if $column eq 'categorycode';
 389             $list='itemtypes' if $column eq 'itype';
 390             $list='ccode' if $column eq 'ccode';
 391             # TODO : improve to let the librarian choose the description at runtime
 392             push @values, {
 393                 availablevalues => "<<$column" . ( $list ? "|$list" : '' ) . ">>",
 394                 display_value   => "<<$column" . ( $list ? "|$list" : '' ) . ">>",
 395             };
 396             while ( my $row = $sth->fetchrow_hashref() ) {
 397                 if ($row->{'availablevalues'} eq '') { $row->{'default'} = 1 }
 398                 else { $row->{display_value} = _get_display_value( $row->{'availablevalues'}, $column ); }
 399                 push @values, $row;
 400             }
 401             $sth->finish();
 402
 403             my %temp;
 404             $temp{'name'}        = $value;
 405             $temp{'description'} = $column_defs->{$value};
 406             $temp{'values'}      = \@values;
 407
 408             push @criteria_array, \%temp;
 409         }
 410     }
 411     return ( \@criteria_array );
 412 }
 413
 414 sub nb_rows {
 415     my $sql = shift or return;
 416     my $sth = C4::Context->dbh->prepare($sql);
 417     $sth->execute();
 418     my $rows = $sth->fetchall_arrayref();
 419     return scalar (@$rows);
 420 }
 421
 422 =head2 execute_query
 423
 424   ($sth, $error) = execute_query($sql, $offset, $limit[, \@sql_params])
 425
 426
 427 This function returns a DBI statement handler from which the caller can
 428 fetch the results of the SQL passed via C<$sql>.
 429
 430 If passed any query other than a SELECT, or if there is a DB error,
 431 C<$errors> is returned, and is a hashref containing the error after this
 432 manner:
 433
 434 C<$error->{'sqlerr'}> contains the offending SQL keyword.
 435 C<$error->{'queryerr'}> contains the native db engine error returned
 436 for the query.
 437
 438 C<$offset>, and C<$limit> are required parameters.
 439
 440 C<\@sql_params> is an optional list of parameter values to paste in.
 441 The caller is responsible for making sure that C<$sql> has placeholders
 442 and that the number placeholders matches the number of parameters.
 443
 444 =cut
 445
 446 # returns $sql, $offset, $limit
 447 # $sql returned will be transformed to:
 448 #  ~ remove any LIMIT clause
 449 #  ~ repace SELECT clause w/ SELECT count(*)
 450
 451 sub select_2_select_count {
 452     # Modify the query passed in to create a count query... (I think this covers all cases -crn)
 453     my ($sql) = strip_limit(shift) or return;
 454     $sql =~ s/\bSELECT\W+(?:\w+\W+){1,}?FROM\b|\bSELECT\W\*\WFROM\b/SELECT count(*) FROM /ig;
 455     return $sql;
 456 }
 457
 458 # This removes the LIMIT from the query so that a custom one can be specified.
 459 # Usage:
 460 #   ($new_sql, $offset, $limit) = strip_limit($sql);
 461 #
 462 # Where:
 463 #   $sql is the query to modify
 464 #   $new_sql is the resulting query
 465 #   $offset is the offset value, if the LIMIT was the two-argument form,
 466 #       0 if it wasn't otherwise given.
 467 #   $limit is the limit value
 468 #
 469 # Notes:
 470 #   * This makes an effort to not break subqueries that have their own
 471 #     LIMIT specified. It does that by only removing a LIMIT if it comes after
 472 #     a WHERE clause (which isn't perfect, but at least should make more cases
 473 #     work - subqueries with a limit in the WHERE will still break.)
 474 #   * If your query doesn't have a WHERE clause then all LIMITs will be
 475 #     removed. This may break some subqueries, but is hopefully rare enough
 476 #     to not be a big issue.
 477 sub strip_limit {
 478     my ($sql) = @_;
 479
 480     return unless $sql;
 481     return ($sql, 0, undef) unless $sql =~ /\bLIMIT\b/i;
 482
 483     # Two options: if there's no WHERE clause in the SQL, we simply capture
 484     # any LIMIT that's there. If there is a WHERE, we make sure that we only
 485     # capture a LIMIT after the last one. This prevents stomping on subqueries.
 486     if ($sql !~ /\bWHERE\b/i) {
 487         (my $res = $sql) =~ s/\bLIMIT\b\s*(\d+)(\s*\,\s*(\d+))?\s*/ /ig;
 488         return ($res, (defined $2 ? $1 : 0), (defined $3 ? $3 : $1));
 489     } else {
 490         my $res = $sql;
 491         $res =~ m/.*\bWHERE\b/gsi;
 492         $res =~ s/\G(.*)\bLIMIT\b\s*(\d+)(\s*\,\s*(\d+))?\s*/$1 /is;
 493         return ($res, (defined $3 ? $2 : 0), (defined $4 ? $4 : $2));
 494     }
 495 }
 496
 497 sub execute_query {
 498
 499     my ( $sql, $offset, $limit, $sql_params, $report_id ) = @_;
 500
 501     $sql_params = [] unless defined $sql_params;
 502
 503     # check parameters
 504     unless ($sql) {
 505         carp "execute_query() called without SQL argument";
 506         return;
 507     }
 508     $offset = 0    unless $offset;
 509     $limit  = 999999 unless $limit;
 510     $debug and print STDERR "execute_query($sql, $offset, $limit)\n";
 511     if ($sql =~ /;?\W?(UPDATE|DELETE|DROP|INSERT|SHOW|CREATE)\W/i) {
 512         return (undef, {  sqlerr => $1} );
 513     } elsif ($sql !~ /^\s*SELECT\b\s*/i) {
 514         return (undef, { queryerr => 'Missing SELECT'} );
 515     }
 516
 517     my ($useroffset, $userlimit);
 518
 519     # Grab offset/limit from user supplied LIMIT and drop the LIMIT so we can control pagination
 520     ($sql, $useroffset, $userlimit) = strip_limit($sql);
 521     $debug and warn sprintf "User has supplied (OFFSET,) LIMIT = %s, %s",
 522         $useroffset,
 523         (defined($userlimit ) ? $userlimit  : 'UNDEF');
 524     $offset += $useroffset;
 525     if (defined($userlimit)) {
 526         if ($offset + $limit > $userlimit ) {
 527             $limit = $userlimit - $offset;
 528         } elsif ( ! $offset && $limit < $userlimit ) {
 529             $limit = $userlimit;
 530         }
 531     }
 532     $sql .= " LIMIT ?, ?";
 533
 534     my $dbh = C4::Context->dbh;
 535
 536     $dbh->do( 'UPDATE saved_sql SET last_run = NOW() WHERE id = ?', undef, $report_id ) if $report_id;
 537
 538     my $sth = $dbh->prepare($sql);
 539     $sth->execute(@$sql_params, $offset, $limit);
 540
 541     return ( $sth, { queryerr => $sth->errstr } ) if ($sth->err);
 542     return ( $sth );
 543 }
 544
 545 =head2 save_report($sql,$name,$type,$notes)
 546
 547 Given some sql and a name this will saved it so that it can reused
 548 Returns id of the newly created report
 549
 550 =cut
 551
 552 sub save_report {
 553     my ($fields) = @_;
 554     my $borrowernumber = $fields->{borrowernumber};
 555     my $sql = $fields->{sql};
 556     my $name = $fields->{name};
 557     my $type = $fields->{type};
 558     my $notes = $fields->{notes};
 559     my $area = $fields->{area};
 560     my $group = $fields->{group};
 561     my $subgroup = $fields->{subgroup};
 562     my $cache_expiry = $fields->{cache_expiry} || 300;
 563     my $public = $fields->{public};
 564
 565     my $dbh = C4::Context->dbh();
 566     $sql =~ s/(\s*\;\s*)$//;    # removes trailing whitespace and /;/
 567     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(),?,?,?,?,?,?,?,?,?)";
 568     $dbh->do($query, undef, $borrowernumber, $sql, $name, $area, $group, $subgroup, $type, $notes, $cache_expiry, $public);
 569
 570     my $id = $dbh->selectrow_array("SELECT max(id) FROM saved_sql WHERE borrowernumber=? AND report_name=?", undef,
 571                                    $borrowernumber, $name);
 572     return $id;
 573 }
 574
 575 sub update_sql {
 576     my $id         = shift || croak "No Id given";
 577     my $fields     = shift;
 578     my $sql = $fields->{sql};
 579     my $name = $fields->{name};
 580     my $notes = $fields->{notes};
 581     my $group = $fields->{group};
 582     my $subgroup = $fields->{subgroup};
 583     my $cache_expiry = $fields->{cache_expiry};
 584     my $public = $fields->{public};
 585
 586     if( $cache_expiry >= 2592000 ){
 587       die "Please specify a cache expiry less than 30 days\n";
 588     }
 589
 590     my $dbh        = C4::Context->dbh();
 591     $sql =~ s/(\s*\;\s*)$//;    # removes trailing whitespace and /;/
 592     my $query = "UPDATE saved_sql SET savedsql = ?, last_modified = now(), report_name = ?, report_group = ?, report_subgroup = ?, notes = ?, cache_expiry = ?, public = ? WHERE id = ? ";
 593     $dbh->do($query, undef, $sql, $name, $group, $subgroup, $notes, $cache_expiry, $public, $id );
 594 }
 595
 596 sub store_results {
 597     my ( $id, $json ) = @_;
 598     my $dbh = C4::Context->dbh();
 599     $dbh->do(q|
 600         INSERT INTO saved_reports ( report_id, report, date_run ) VALUES ( ?, ?, NOW() );
 601     |, undef, $id, $json );
 602 }
 603
 604 sub format_results {
 605     my ( $id ) = @_;
 606     my $dbh = C4::Context->dbh();
 607     my ( $report_name, $notes, $json, $date_run ) = $dbh->selectrow_array(q|
 608        SELECT ss.report_name, ss.notes, sr.report, sr.date_run
 609        FROM saved_sql ss
 610        LEFT JOIN saved_reports sr ON sr.report_id = ss.id
 611        WHERE sr.id = ?
 612     |, undef, $id);
 613     return {
 614         report_name => $report_name,
 615         notes => $notes,
 616         results => from_json( $json ),
 617         date_run => $date_run,
 618     };
 619 }
 620
 621 sub delete_report {
 622     my (@ids) = @_;
 623     return unless @ids;
 624     foreach my $id (@ids) {
 625         my $data = get_saved_report($id);
 626         logaction( "REPORTS", "DELETE", $id, "$data->{'report_name'} | $data->{'savedsql'}  " ) if C4::Context->preference("ReportsLog");
 627     }
 628     my $dbh = C4::Context->dbh;
 629     my $query = 'DELETE FROM saved_sql WHERE id IN (' . join( ',', ('?') x @ids ) . ')';
 630     my $sth = $dbh->prepare($query);
 631     return $sth->execute(@ids);
 632 }
 633
 634 sub get_saved_reports_base_query {
 635     my $area_name_sql_snippet = get_area_name_sql_snippet;
 636     return <<EOQ;
 637 SELECT s.*, $area_name_sql_snippet, av_g.lib AS groupname, av_sg.lib AS subgroupname,
 638 b.firstname AS borrowerfirstname, b.surname AS borrowersurname
 639 FROM saved_sql s
 640 LEFT JOIN saved_reports r ON r.report_id = s.id
 641 LEFT OUTER JOIN authorised_values av_g ON (av_g.category = 'REPORT_GROUP' AND av_g.authorised_value = s.report_group)
 642 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)
 643 LEFT OUTER JOIN borrowers b USING (borrowernumber)
 644 EOQ
 645 }
 646
 647 sub get_saved_reports {
 648 # $filter is either { date => $d, author => $a, keyword => $kw, }
 649 # or $keyword. Optional.
 650     my ($filter) = @_;
 651     $filter = { keyword => $filter } if $filter && !ref( $filter );
 652     my ($group, $subgroup) = @_;
 653
 654     my $dbh   = C4::Context->dbh();
 655     my $query = get_saved_reports_base_query;
 656     my (@cond,@args);
 657     if ($filter) {
 658         if (my $date = $filter->{date}) {
 659             $date = eval { output_pref( { dt => dt_from_string( $date ), dateonly => 1, dateformat => 'iso' }); };
 660             push @cond, "DATE(last_modified) = ? OR
 661                          DATE(last_run) = ?";
 662             push @args, $date, $date, $date;
 663         }
 664         if (my $author = $filter->{author}) {
 665             $author = "%$author%";
 666             push @cond, "surname LIKE ? OR
 667                          firstname LIKE ?";
 668             push @args, $author, $author;
 669         }
 670         if (my $keyword = $filter->{keyword}) {
 671             push @cond, q|
 672                        report LIKE ?
 673                     OR report_name LIKE ?
 674                     OR notes LIKE ?
 675                     OR savedsql LIKE ?
 676                     OR s.id = ?
 677             |;
 678             push @args, "%$keyword%", "%$keyword%", "%$keyword%", "%$keyword%", $keyword;
 679         }
 680         if ($filter->{group}) {
 681             push @cond, "report_group = ?";
 682             push @args, $filter->{group};
 683         }
 684         if ($filter->{subgroup}) {
 685             push @cond, "report_subgroup = ?";
 686             push @args, $filter->{subgroup};
 687         }
 688     }
 689     $query .= " WHERE ".join( " AND ", map "($_)", @cond ) if @cond;
 690     $query .= " ORDER by date_created";
 691
 692     my $result = $dbh->selectall_arrayref($query, {Slice => {}}, @args);
 693
 694     return $result;
 695 }
 696
 697 sub get_saved_report {
 698     my $dbh   = C4::Context->dbh();
 699     my $query;
 700     my $report_arg;
 701     if ($#_ == 0 && ref $_[0] ne 'HASH') {
 702         ($report_arg) = @_;
 703         $query = " SELECT * FROM saved_sql WHERE id = ?";
 704     } elsif (ref $_[0] eq 'HASH') {
 705         my ($selector) = @_;
 706         if ($selector->{name}) {
 707             $query = " SELECT * FROM saved_sql WHERE report_name = ?";
 708             $report_arg = $selector->{name};
 709         } elsif ($selector->{id} || $selector->{id} eq '0') {
 710             $query = " SELECT * FROM saved_sql WHERE id = ?";
 711             $report_arg = $selector->{id};
 712         } else {
 713             return;
 714         }
 715     } else {
 716         return;
 717     }
 718     return $dbh->selectrow_hashref($query, undef, $report_arg);
 719 }
 720
 721 =head2 create_compound($masterID,$subreportID)
 722
 723 This will take 2 reports and create a compound report using both of them
 724
 725 =cut
 726
 727 sub create_compound {
 728     my ( $masterID, $subreportID ) = @_;
 729     my $dbh = C4::Context->dbh();
 730
 731     # get the reports
 732     my $master = get_saved_report($masterID);
 733     my $mastersql = $master->{savedsql};
 734     my $mastertype = $master->{type};
 735     my $sub = get_saved_report($subreportID);
 736     my $subsql = $master->{savedsql};
 737     my $subtype = $master->{type};
 738
 739     # now we have to do some checking to see how these two will fit together
 740     # or if they will
 741     my ( $mastertables, $subtables );
 742     if ( $mastersql =~ / from (.*) where /i ) {
 743         $mastertables = $1;
 744     }
 745     if ( $subsql =~ / from (.*) where /i ) {
 746         $subtables = $1;
 747     }
 748     return ( $mastertables, $subtables );
 749 }
 750
 751 =head2 get_column_type($column)
 752
 753 This takes a column name of the format table.column and will return what type it is
 754 (free text, set values, date)
 755
 756 =cut
 757
 758 sub get_column_type {
 759         my ($tablecolumn) = @_;
 760         my ($table,$column) = split(/\./,$tablecolumn);
 761         my $dbh = C4::Context->dbh();
 762         my $catalog;
 763         my $schema;
 764
 765     # mysql doesn't support a column selection, set column to %
 766         my $tempcolumn='%';
 767         my $sth = $dbh->column_info( $catalog, $schema, $table, $tempcolumn ) || die $dbh->errstr;
 768         while (my $info = $sth->fetchrow_hashref()){
 769                 if ($info->{'COLUMN_NAME'} eq $column){
 770                         #column we want
 771                         if ($info->{'TYPE_NAME'} eq 'CHAR' || $info->{'TYPE_NAME'} eq 'VARCHAR'){
 772                                 $info->{'TYPE_NAME'} = 'distinct';
 773                         }
 774                         return $info->{'TYPE_NAME'};
 775                 }
 776         }
 777 }
 778
 779 =head2 get_distinct_values($column)
 780
 781 Given a column name, return an arrary ref of hashrefs suitable for use as a tmpl_loop
 782 with the distinct values of the column
 783
 784 =cut
 785
 786 sub get_distinct_values {
 787         my ($tablecolumn) = @_;
 788         my ($table,$column) = split(/\./,$tablecolumn);
 789         my $dbh = C4::Context->dbh();
 790         my $query =
 791           "SELECT distinct($column) as availablevalues FROM $table";
 792         my $sth = $dbh->prepare($query);
 793         $sth->execute();
 794     return $sth->fetchall_arrayref({});
 795 }
 796
 797 sub save_dictionary {
 798     my ( $name, $description, $sql, $area ) = @_;
 799     my $dbh   = C4::Context->dbh();
 800     my $query = "INSERT INTO reports_dictionary (name,description,saved_sql,report_area,date_created,date_modified)
 801   VALUES (?,?,?,?,now(),now())";
 802     my $sth = $dbh->prepare($query);
 803     $sth->execute($name,$description,$sql,$area) || return 0;
 804     return 1;
 805 }
 806
 807 sub get_from_dictionary {
 808     my ( $area, $id ) = @_;
 809     my $dbh   = C4::Context->dbh();
 810     my $area_name_sql_snippet = get_area_name_sql_snippet;
 811     my $query = <<EOQ;
 812 SELECT d.*, $area_name_sql_snippet
 813 FROM reports_dictionary d
 814 EOQ
 815
 816     if ($area) {
 817         $query .= " WHERE report_area = ?";
 818     } elsif ($id) {
 819         $query .= " WHERE id = ?";
 820     }
 821     my $sth = $dbh->prepare($query);
 822     if ($id) {
 823         $sth->execute($id);
 824     } elsif ($area) {
 825         $sth->execute($area);
 826     } else {
 827         $sth->execute();
 828     }
 829     my @loop;
 830     while ( my $data = $sth->fetchrow_hashref() ) {
 831         push @loop, $data;
 832     }
 833     return ( \@loop );
 834 }
 835
 836 sub delete_definition {
 837         my ($id) = @_ or return;
 838         my $dbh = C4::Context->dbh();
 839         my $query = "DELETE FROM reports_dictionary WHERE id = ?";
 840         my $sth = $dbh->prepare($query);
 841         $sth->execute($id);
 842 }
 843
 844 sub get_sql {
 845         my ($id) = @_ or return;
 846         my $dbh = C4::Context->dbh();
 847         my $query = "SELECT * FROM saved_sql WHERE id = ?";
 848         my $sth = $dbh->prepare($query);
 849         $sth->execute($id);
 850         my $data=$sth->fetchrow_hashref();
 851         return $data->{'savedsql'};
 852 }
 853
 854 sub get_results {
 855     my ( $report_id ) = @_;
 856     my $dbh = C4::Context->dbh;
 857     warn $report_id;
 858     return $dbh->selectall_arrayref(q|
 859         SELECT id, report, date_run
 860         FROM saved_reports
 861         WHERE report_id = ?
 862     |, { Slice => {} }, $report_id);
 863 }
 864
 865 sub _get_column_defs {
 866     my ($cgi) = @_;
 867     my %columns;
 868     my $columns_def_file = "columns.def";
 869     my $htdocs = C4::Context->config('intrahtdocs');
 870     my $section = 'intranet';
 871
 872     # We need the theme and the lang
 873     # Since columns.def is not in the modules directory, we cannot sent it for the $tmpl var
 874     my ($theme, $lang, $availablethemes) = C4::Templates::themelanguage($htdocs, 'about.tt', $section, $cgi);
 875
 876     my $full_path_to_columns_def_file="$htdocs/$theme/$lang/$columns_def_file";
 877     open (my $fh, '<:encoding(utf-8)', $full_path_to_columns_def_file);
 878     while ( my $input = <$fh> ){
 879         chomp $input;
 880         if ( $input =~ m|<field name="(.*)">(.*)</field>| ) {
 881             my ( $field, $translation ) = ( $1, $2 );
 882             $columns{$field} = $translation;
 883         }
 884     }
 885     close $fh;
 886     return \%columns;
 887 }
 888
 889 =head2 GetReservedAuthorisedValues
 890
 891     my %reserved_authorised_values = GetReservedAuthorisedValues();
 892
 893 Returns a hash containig all reserved words
 894
 895 =cut
 896
 897 sub GetReservedAuthorisedValues {
 898     my %reserved_authorised_values =
 899             map { $_ => 1 } ( 'date',
 900                               'branches',
 901                               'itemtypes',
 902                               'cn_source',
 903                               'categorycode',
 904                               'biblio_framework' );
 905
 906    return \%reserved_authorised_values;
 907 }
 908
 909
 910 =head2 IsAuthorisedValueValid
 911
 912     my $is_valid_ath_value = IsAuthorisedValueValid($authorised_value)
 913
 914 Returns 1 if $authorised_value is on the reserved authorised values list or
 915 in the authorised value categories defined in
 916
 917 =cut
 918
 919 sub IsAuthorisedValueValid {
 920
 921     my $authorised_value = shift;
 922     my $reserved_authorised_values = GetReservedAuthorisedValues();
 923
 924     if ( exists $reserved_authorised_values->{$authorised_value} ||
 925          Koha::AuthorisedValues->search({ category => $authorised_value })->count ) {
 926         return 1;
 927     }
 928
 929     return 0;
 930 }
 931
 932 =head2 GetParametersFromSQL
 933
 934     my @sql_parameters = GetParametersFromSQL($sql)
 935
 936 Returns an arrayref of hashes containing the keys name and authval
 937
 938 =cut
 939
 940 sub GetParametersFromSQL {
 941
 942     my $sql = shift ;
 943     my @split = split(/<<|>>/,$sql);
 944     my @sql_parameters = ();
 945
 946     for ( my $i = 0; $i < ($#split/2) ; $i++ ) {
 947         my ($name,$authval) = split(/\|/,$split[$i*2+1]);
 948         push @sql_parameters, { 'name' => $name, 'authval' => $authval };
 949     }
 950
 951     return \@sql_parameters;
 952 }
 953
 954 =head2 ValidateSQLParameters
 955
 956     my @problematic_parameters = ValidateSQLParameters($sql)
 957
 958 Returns an arrayref of hashes containing the keys name and authval of
 959 those SQL parameters that do not correspond to valid authorised names
 960
 961 =cut
 962
 963 sub ValidateSQLParameters {
 964
 965     my $sql = shift;
 966     my @problematic_parameters = ();
 967     my $sql_parameters = GetParametersFromSQL($sql);
 968
 969     foreach my $sql_parameter (@$sql_parameters) {
 970         if ( defined $sql_parameter->{'authval'} ) {
 971             push @problematic_parameters, $sql_parameter unless
 972                 IsAuthorisedValueValid($sql_parameter->{'authval'});
 973         }
 974     }
 975
 976     return \@problematic_parameters;
 977 }
 978
 979 sub _get_display_value {
 980     my ( $original_value, $column ) = @_;
 981     if ( $column eq 'periodicity' ) {
 982         my $dbh = C4::Context->dbh();
 983         my $query = "SELECT description FROM subscription_frequencies WHERE id = ?";
 984         my $sth   = $dbh->prepare($query);
 985         $sth->execute($original_value);
 986         return $sth->fetchrow;
 987     }
 988     return $original_value;
 989 }
 990
 991 1;
 992 __END__
 993
 994 =head1 AUTHOR
 995
 996 Chris Cormack <crc@liblime.com>
 997
 998 =cut