C4/Reports.pm

   1 package C4::Reports;
   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 under the
   8 # terms of the GNU General Public License as published by the Free Software
   9 # Foundation; either version 2 of the License, or (at your option) any later
  10 # version.
  11 #
  12 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
  13 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  14 # A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License along with
  17 # Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
  18 # Suite 330, Boston, MA  02111-1307 USA
  19
  20 use strict;
  21 use CGI;
  22
  23 use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
  24 use C4::Context;
  25 use C4::Output;
  26 use XML::Simple;
  27 use XML::Dumper;
  28 # use Smart::Comments;
  29 # use Data::Dumper;
  30
  31 BEGIN {
  32         # set the version for version checking
  33         $VERSION = 0.12;
  34         require Exporter;
  35         @ISA = qw(Exporter);
  36         @EXPORT = qw(
  37                 get_report_types get_report_areas get_columns build_query get_criteria
  38                 save_report get_saved_reports execute_query get_saved_report create_compound run_compound
  39                 get_column_type get_distinct_values save_dictionary get_from_dictionary
  40                 delete_definition delete_report format_results get_sql
  41         );
  42 }
  43
  44 our %table_areas;
  45 $table_areas{'1'} =
  46   [ 'borrowers', 'statistics','items', 'biblioitems' ];    # circulation
  47 $table_areas{'2'} = [ 'items', 'biblioitems', 'biblio' ];   # catalogue
  48 $table_areas{'3'} = [ 'borrowers' ];        # patrons
  49 $table_areas{'4'} = ['aqorders', 'biblio', 'items'];        # acquisitions
  50 $table_areas{'5'} = [ 'borrowers', 'accountlines' ];        # accounts
  51 our %keys;
  52 $keys{'1'} = [
  53     'statistics.borrowernumber=borrowers.borrowernumber',
  54     'items.itemnumber = statistics.itemnumber',
  55     'biblioitems.biblioitemnumber = items.biblioitemnumber'
  56 ];
  57 $keys{'2'} = [
  58     'items.biblioitemnumber=biblioitems.biblioitemnumber',
  59     'biblioitems.biblionumber=biblio.biblionumber'
  60 ];
  61 $keys{'3'} = [ ];
  62 $keys{'4'} = [
  63         'aqorders.biblionumber=biblio.biblionumber',
  64         'biblio.biblionumber=items.biblionumber'
  65 ];
  66 $keys{'5'} = ['borrowers.borrowernumber=accountlines.borrowernumber'];
  67
  68 # have to do someting here to know if its dropdown, free text, date etc
  69
  70 our %criteria;
  71 $criteria{'1'} = [
  72     'statistics.type',   'borrowers.categorycode',
  73     'statistics.branch',
  74     'biblioitems.publicationyear|date',
  75     'items.dateaccessioned|date'
  76 ];
  77 $criteria{'2'} =
  78   [ 'items.holdingbranch', 'items.homebranch' ,'items.itemlost', 'items.location', 'items.ccode'];
  79 $criteria{'3'} = ['borrowers.branchcode'];
  80 $criteria{'4'} = ['aqorders.datereceived|date'];
  81 $criteria{'5'} = ['borrowers.branchcode'];
  82
  83 if (C4::Context->preference('item-level_itypes')) {
  84     unshift @{ $criteria{'1'} }, 'items.itype';
  85     unshift @{ $criteria{'2'} }, 'items.itype';
  86 } else {
  87     unshift @{ $criteria{'1'} }, 'biblioitems.itemtype';
  88     unshift @{ $criteria{'2'} }, 'biblioitems.itemtype';
  89 }
  90
  91 =head1 NAME
  92
  93 C4::Reports - Module for generating reports
  94
  95 =head1 SYNOPSIS
  96
  97   use C4::Reports;
  98
  99 =head1 DESCRIPTION
 100
 101
 102 =head1 METHODS
 103
 104 =over 2
 105
 106 =cut
 107
 108 =item get_report_types()
 109
 110 This will return a list of all the available report types
 111
 112 =cut
 113
 114 sub get_report_types {
 115     my $dbh = C4::Context->dbh();
 116
 117     # FIXME these should be in the database perhaps
 118     my @reports = ( 'Tabular', 'Summary', 'Matrix' );
 119     my @reports2;
 120     for ( my $i = 0 ; $i < 3 ; $i++ ) {
 121         my %hashrep;
 122         $hashrep{id}   = $i + 1;
 123         $hashrep{name} = $reports[$i];
 124         push @reports2, \%hashrep;
 125     }
 126     return ( \@reports2 );
 127
 128 }
 129
 130 =item get_report_areas()
 131
 132 This will return a list of all the available report areas
 133
 134 =cut
 135
 136 sub get_report_areas {
 137     my $dbh = C4::Context->dbh();
 138
 139     # FIXME these should be in the database
 140     my @reports = ( 'Circulation', 'Catalog', 'Patrons', 'Acquisitions', 'Accounts');
 141     my @reports2;
 142     for ( my $i = 0 ; $i < 5 ; $i++ ) {
 143         my %hashrep;
 144         $hashrep{id}   = $i + 1;
 145         $hashrep{name} = $reports[$i];
 146         push @reports2, \%hashrep;
 147     }
 148     return ( \@reports2 );
 149
 150 }
 151
 152 =item get_all_tables()
 153
 154 This will return a list of all tables in the database
 155
 156 =cut
 157
 158 sub get_all_tables {
 159     my $dbh   = C4::Context->dbh();
 160     my $query = "SHOW TABLES";
 161     my $sth   = $dbh->prepare($query);
 162     $sth->execute();
 163     my @tables;
 164     while ( my $data = $sth->fetchrow_arrayref() ) {
 165         push @tables, $data->[0];
 166     }
 167     $sth->finish();
 168     return ( \@tables );
 169
 170 }
 171
 172 =item get_columns($area)
 173
 174 This will return a list of all columns for a report area
 175
 176 =cut
 177
 178 sub get_columns {
 179
 180     # this calls the internal fucntion _get_columns
 181     my ($area,$cgi) = @_;
 182     my $tables = $table_areas{$area};
 183     my @allcolumns;
 184     my $first = 1;
 185     foreach my $table (@$tables) {
 186         my @columns = _get_columns($table,$cgi, $first);
 187         $first = 0;
 188         push @allcolumns, @columns;
 189     }
 190     return ( \@allcolumns );
 191 }
 192
 193 sub _get_columns {
 194     my ($tablename,$cgi, $first) = @_;
 195     my $dbh         = C4::Context->dbh();
 196     my $sth         = $dbh->prepare("show columns from $tablename");
 197     $sth->execute();
 198     my @columns;
 199         my $column_defs = _get_column_defs($cgi);
 200         my %tablehash;
 201         $tablehash{'table'}=$tablename;
 202     $tablehash{'__first__'} = $first;
 203         push @columns, \%tablehash;
 204     while ( my $data = $sth->fetchrow_arrayref() ) {
 205         my %temphash;
 206         $temphash{'name'}        = "$tablename.$data->[0]";
 207         $temphash{'description'} = $column_defs->{"$tablename.$data->[0]"};
 208         push @columns, \%temphash;
 209     }
 210     $sth->finish();
 211     return (@columns);
 212 }
 213
 214 =item build_query($columns,$criteria,$orderby,$area)
 215
 216 This will build the sql needed to return the results asked for,
 217 $columns is expected to be of the format tablename.columnname.
 218 This is what get_columns returns.
 219
 220 =cut
 221
 222 sub build_query {
 223     my ( $columns, $criteria, $orderby, $area, $totals, $definition ) = @_;
 224 ### $orderby
 225     my $keys   = $keys{$area};
 226     my $tables = $table_areas{$area};
 227
 228     my $sql =
 229       _build_query( $tables, $columns, $criteria, $keys, $orderby, $totals, $definition );
 230     return ($sql);
 231 }
 232
 233 sub _build_query {
 234     my ( $tables, $columns, $criteria, $keys, $orderby, $totals, $definition) = @_;
 235 ### $orderby
 236     # $keys is an array of joining constraints
 237     my $dbh           = C4::Context->dbh();
 238     my $joinedtables  = join( ',', @$tables );
 239     my $joinedcolumns = join( ',', @$columns );
 240     my $joinedkeys    = join( ' AND ', @$keys );
 241     my $query =
 242       "SELECT $totals $joinedcolumns FROM $tables->[0] ";
 243         for (my $i=1;$i<@$tables;$i++){
 244                 $query .= "LEFT JOIN $tables->[$i] on ($keys->[$i-1]) ";
 245         }
 246
 247     if ($criteria) {
 248                 $criteria =~ s/AND/WHERE/;
 249         $query .= " $criteria";
 250     }
 251         if ($definition){
 252                 my @definitions = split(',',$definition);
 253                 my $deftext;
 254                 foreach my $def (@definitions){
 255                         my $defin=get_from_dictionary('',$def);
 256                         $deftext .=" ".$defin->[0]->{'saved_sql'};
 257                 }
 258                 if ($query =~ /WHERE/i){
 259                         $query .= $deftext;
 260                 }
 261                 else {
 262                         $deftext  =~ s/AND/WHERE/;
 263                         $query .= $deftext;
 264                 }
 265         }
 266     if ($totals) {
 267         my $groupby;
 268         my @totcolumns = split( ',', $totals );
 269         foreach my $total (@totcolumns) {
 270             if ( $total =~ /\((.*)\)/ ) {
 271                 if ( $groupby eq '' ) {
 272                     $groupby = " GROUP BY $1";
 273                 }
 274                 else {
 275                     $groupby .= ",$1";
 276                 }
 277             }
 278         }
 279         $query .= $groupby;
 280     }
 281     if ($orderby) {
 282         $query .= $orderby;
 283     }
 284     return ($query);
 285 }
 286
 287 =item get_criteria($area,$cgi);
 288
 289 Returns an arraref to hashrefs suitable for using in a tmpl_loop. With the criteria and available values.
 290
 291 =cut
 292
 293 sub get_criteria {
 294     my ($area,$cgi) = @_;
 295     my $dbh    = C4::Context->dbh();
 296     my $crit   = $criteria{$area};
 297         my $column_defs = _get_column_defs($cgi);
 298     my @criteria_array;
 299     foreach my $localcrit (@$crit) {
 300         my ( $value, $type )   = split( /\|/, $localcrit );
 301         my ( $table, $column ) = split( /\./, $value );
 302         if ( $type eq 'date' ) {
 303                         my %temp;
 304             $temp{'name'}   = $value;
 305             $temp{'date'}   = 1;
 306                         $temp{'description'} = $column_defs->{$value};
 307             push @criteria_array, \%temp;
 308         }
 309         else {
 310
 311             my $query =
 312               "SELECT distinct($column) as availablevalues FROM $table";
 313             my $sth = $dbh->prepare($query);
 314             $sth->execute();
 315             my @values;
 316             while ( my $row = $sth->fetchrow_hashref() ) {
 317                 push @values, $row;
 318                 ### $row;
 319             }
 320             $sth->finish();
 321             my %temp;
 322             $temp{'name'}   = $value;
 323                         $temp{'description'} = $column_defs->{$value};
 324             $temp{'values'} = \@values;
 325             push @criteria_array, \%temp;
 326         }
 327     }
 328     return ( \@criteria_array );
 329 }
 330
 331 sub execute_query {
 332     my ( $sql, $type, $format, $id ) = @_;
 333     my $dbh = C4::Context->dbh();
 334
 335     # take this line out when in production
 336         if ($format eq 'csv' or $format eq 'tab'){
 337                 }
 338         else {
 339                 $sql .= " LIMIT 20";
 340         }
 341     my $sth = $dbh->prepare($sql);
 342     $sth->execute();
 343         my $colnames=$sth->{'NAME'};
 344         my @results;
 345         my $row;
 346         my %temphash;
 347         $row = join ('</th><th>',@$colnames);
 348         $row = "<tr><th>$row</th></tr>";
 349         $temphash{'row'} = $row;
 350         push @results, \%temphash;
 351     my $string;
 352         my @xmlarray;
 353     while ( my @data = $sth->fetchrow_array() ) {
 354
 355             # tabular
 356             my %temphash;
 357             my $row = join( '</td><td>', @data );
 358             $row = "<tr><td>$row</td></tr>";
 359             $temphash{'row'} = $row;
 360             if ( $format eq 'text' ) {
 361                 $string .= "\n" . $row;
 362             }
 363                         if ($format eq 'tab' ){
 364                                 $row = join("\t",@data);
 365                                 $string .="\n" . $row;
 366                         }
 367                         if ($format eq 'csv' ){
 368                                 $row = join(",",@data);
 369                                 $string .="\n" . $row;
 370                         }
 371                 if ($format eq 'url'){
 372                         my $temphash;
 373                         @$temphash{@$colnames}=@data;
 374                         push @xmlarray,$temphash;
 375                 }
 376             push @results, \%temphash;
 377 #        }
 378     }
 379     $sth->finish();
 380     if ( $format eq 'text' || $format eq 'tab' || $format eq 'csv' ) {
 381         return $string;
 382     }
 383         elsif ($format eq 'url') {
 384                 my $url = "/cgi-bin/koha/reports/guided_reports.pl?phase=retrieve%20results&id=$id";
 385                 my $dump = new XML::Dumper;
 386                 my $xml = $dump->pl2xml( \@xmlarray );
 387                 store_results($id,$xml);
 388                 return $url;
 389         }
 390     else {
 391         return ( \@results );
 392     }
 393 }
 394
 395 =item save_report($sql,$name,$type,$notes)
 396
 397 Given some sql and a name this will saved it so that it can resued
 398
 399 =cut
 400
 401 sub save_report {
 402     my ( $sql, $name, $type, $notes ) = @_;
 403     my $dbh = C4::Context->dbh();
 404     my $query =
 405 "INSERT INTO saved_sql (borrowernumber,date_created,last_modified,savedsql,report_name,type,notes)  VALUES (?,now(),now(),?,?,?,?)";
 406     my $sth = $dbh->prepare($query);
 407     $sth->execute( 0, $sql, $name, $type, $notes );
 408     $sth->finish();
 409
 410 }
 411
 412 sub store_results {
 413         my ($id,$xml)=@_;
 414         my $dbh = C4::Context->dbh();
 415         my $query = "SELECT * FROM saved_reports WHERE report_id=?";
 416         my $sth = $dbh->prepare($query);
 417         $sth->execute($id);
 418         if (my $data=$sth->fetchrow_hashref()){
 419                 my $query2 = "UPDATE saved_reports SET report=?,date_run=now() WHERE report_id=?";
 420                 my $sth2 = $dbh->prepare($query2);
 421             $sth2->execute($xml,$id);
 422                 $sth2->finish();
 423         }
 424         else {
 425                 my $query2 = "INSERT INTO saved_reports (report_id,report,date_run) VALUES (?,?,now())";
 426                 my $sth2 = $dbh->prepare($query2);
 427                 $sth2->execute($id,$xml);
 428                 $sth2->finish();
 429         }
 430         $sth->finish();
 431 }
 432
 433 sub format_results {
 434         my ($id) = @_;
 435         my $dbh = C4::Context->dbh();
 436         my $query = "SELECT * FROM saved_reports WHERE report_id = ?";
 437         my $sth = $dbh->prepare($query);
 438         $sth->execute($id);
 439         my $data = $sth->fetchrow_hashref();
 440         my $dump = new XML::Dumper;
 441         my $perl = $dump->xml2pl( $data->{'report'} );
 442         foreach my $row (@$perl) {
 443                 my $htmlrow="<tr>";
 444                 foreach my $key (keys %$row){
 445                         $htmlrow .= "<td>$row->{$key}</td>";
 446                 }
 447                 $htmlrow .= "</tr>";
 448                 $row->{'row'} = $htmlrow;
 449         }
 450         $sth->finish;
 451         $query = "SELECT * FROM saved_sql WHERE id = ?";
 452         $sth = $dbh->prepare($query);
 453         $sth->execute($id);
 454         $data = $sth->fetchrow_hashref();
 455     $sth->finish();
 456         return ($perl,$data->{'report_name'},$data->{'notes'});
 457 }
 458
 459 sub delete_report {
 460         my ( $id ) = @_;
 461         my $dbh = C4::Context->dbh();
 462         my $query = "DELETE FROM saved_sql WHERE id = ?";
 463         my $sth = $dbh->prepare($query);
 464         $sth->execute($id);
 465         $sth->finish();
 466 }
 467
 468 sub get_saved_reports {
 469     my $dbh   = C4::Context->dbh();
 470     my $query = "SELECT *,saved_sql.id AS id FROM saved_sql
 471     LEFT JOIN saved_reports ON saved_reports.report_id = saved_sql.id
 472     ORDER by date_created";
 473     my $sth   = $dbh->prepare($query);
 474     $sth->execute();
 475     my @reports;
 476     while ( my $data = $sth->fetchrow_hashref() ) {
 477         push @reports, $data;
 478     }
 479     $sth->finish();
 480     return ( \@reports );
 481 }
 482
 483 sub get_saved_report {
 484     my ($id)  = @_;
 485     my $dbh   = C4::Context->dbh();
 486     my $query = " SELECT * FROM saved_sql WHERE id = ?";
 487     my $sth   = $dbh->prepare($query);
 488     $sth->execute($id);
 489     my $data = $sth->fetchrow_hashref();
 490     $sth->finish();
 491     return ( $data->{'savedsql'}, $data->{'type'}, $data->{'report_name'}, $data->{'notes'} );
 492 }
 493
 494 =item create_compound($masterID,$subreportID)
 495
 496 This will take 2 reports and create a compound report using both of them
 497
 498 =cut
 499
 500 sub create_compound {
 501         my ($masterID,$subreportID) = @_;
 502         my $dbh = C4::Context->dbh();
 503         # get the reports
 504         my ($mastersql,$mastertype) = get_saved_report($masterID);
 505         my ($subsql,$subtype) = get_saved_report($subreportID);
 506
 507         # now we have to do some checking to see how these two will fit together
 508         # or if they will
 509         my ($mastertables,$subtables);
 510         if ($mastersql =~ / from (.*) where /i){
 511                 $mastertables = $1;
 512         }
 513         if ($subsql =~ / from (.*) where /i){
 514                 $subtables = $1;
 515         }
 516         return ($mastertables,$subtables);
 517 }
 518
 519 =item get_column_type($column)
 520
 521 This takes a column name of the format table.column and will return what type it is
 522 (free text, set values, date)
 523
 524 =cut
 525
 526 sub get_column_type {
 527         my ($tablecolumn) = @_;
 528         my ($table,$column) = split(/\./,$tablecolumn);
 529         my $dbh = C4::Context->dbh();
 530         my $catalog;
 531         my $schema;
 532
 533         # mysql doesnt support a column selection, set column to %
 534         my $tempcolumn='%';
 535         my $sth = $dbh->column_info( $catalog, $schema, $table, $tempcolumn ) || die $dbh->errstr;
 536         while (my $info = $sth->fetchrow_hashref()){
 537                 if ($info->{'COLUMN_NAME'} eq $column){
 538                         #column we want
 539                         if ($info->{'TYPE_NAME'} eq 'CHAR' || $info->{'TYPE_NAME'} eq 'VARCHAR'){
 540                                 $info->{'TYPE_NAME'} = 'distinct';
 541                         }
 542                         return $info->{'TYPE_NAME'};
 543                 }
 544         }
 545         $sth->finish();
 546 }
 547
 548 =item get_distinct_values($column)
 549
 550 Given a column name, return an arrary ref of hashrefs suitable for use as a tmpl_loop
 551 with the distinct values of the column
 552
 553 =cut
 554
 555 sub get_distinct_values {
 556         my ($tablecolumn) = @_;
 557         my ($table,$column) = split(/\./,$tablecolumn);
 558         my $dbh = C4::Context->dbh();
 559         my $query =
 560           "SELECT distinct($column) as availablevalues FROM $table";
 561         my $sth = $dbh->prepare($query);
 562         $sth->execute();
 563         my @values;
 564         while ( my $row = $sth->fetchrow_hashref() ) {
 565                 push @values, $row;
 566         }
 567         $sth->finish();
 568         return \@values;
 569 }
 570
 571 sub save_dictionary {
 572         my ($name,$description,$sql,$area) = @_;
 573         my $dbh = C4::Context->dbh();
 574         my $query = "INSERT INTO reports_dictionary (name,description,saved_sql,area,date_created,date_modified)
 575   VALUES (?,?,?,?,now(),now())";
 576     my $sth = $dbh->prepare($query);
 577     $sth->execute($name,$description,$sql,$area) || return 0;
 578     $sth->finish();
 579     return 1;
 580 }
 581
 582 sub get_from_dictionary {
 583         my ($area,$id) = @_;
 584         my $dbh = C4::Context->dbh();
 585         my $query = "SELECT * FROM reports_dictionary";
 586         if ($area){
 587                 $query.= " WHERE area = ?";
 588         }
 589         elsif ($id){
 590                 $query.= " WHERE id = ?"
 591         }
 592         my $sth = $dbh->prepare($query);
 593         if ($id){
 594                 $sth->execute($id);
 595         }
 596         elsif ($area) {
 597                 $sth->execute($area);
 598         }
 599         else {
 600                 $sth->execute();
 601         }
 602         my @loop;
 603         my @reports = ( 'Circulation', 'Catalog', 'Patrons', 'Acquisitions', 'Accounts');
 604         while (my $data = $sth->fetchrow_hashref()){
 605                 $data->{'areaname'}=$reports[$data->{'area'}-1];
 606                 push @loop,$data;
 607
 608         }
 609         $sth->finish();
 610         return (\@loop);
 611 }
 612
 613 sub delete_definition {
 614         my ($id) = @_;
 615         my $dbh = C4::Context->dbh();
 616         my $query = "DELETE FROM reports_dictionary WHERE id = ?";
 617         my $sth = $dbh->prepare($query);
 618         $sth->execute($id);
 619         $sth->finish();
 620 }
 621
 622 sub get_sql {
 623         my ($id) = @_;
 624         my $dbh = C4::Context->dbh();
 625         my $query = "SELECT * FROM saved_sql WHERE id = ?";
 626         my $sth = $dbh->prepare($query);
 627         $sth->execute($id);
 628         my $data=$sth->fetchrow_hashref();
 629         $sth->finish();
 630         return $data->{'savedsql'};
 631 }
 632
 633 sub _get_column_defs {
 634         my ($cgi) = @_;
 635         my %columns;
 636         my $columns_def_file = "columns.def";
 637         my $htdocs = C4::Context->config('intrahtdocs');
 638         my $section='intranet';
 639         my ($theme, $lang) = themelanguage($htdocs, $columns_def_file, $section,$cgi);
 640
 641         my $full_path_to_columns_def_file="$htdocs/$theme/$lang/$columns_def_file";
 642         open (COLUMNS,$full_path_to_columns_def_file);
 643         while (my $input = <COLUMNS>){
 644                 my @row =split(/\t/,$input);
 645                 $columns{$row[0]}=$row[1];
 646         }
 647
 648         close COLUMNS;
 649         return \%columns;
 650 }
 651 1;
 652 __END__
 653
 654 =head1 AUTHOR
 655
 656 Chris Cormack <crc@liblime.com>
 657
 658 =cut