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