C4/Maintainance.pm

   1 package C4::Maintainance; #assumes C4/Maintainance
   2
   3 #package to deal with marking up output
   4
   5
   6 # Copyright 2000-2002 Katipo Communications
   7 #
   8 # This file is part of Koha.
   9 #
  10 # Koha is free software; you can redistribute it and/or modify it under the
  11 # terms of the GNU General Public License as published by the Free Software
  12 # Foundation; either version 2 of the License, or (at your option) any later
  13 # version.
  14 #
  15 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
  16 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  17 # A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License along
  20 # with Koha; if not, write to the Free Software Foundation, Inc.,
  21 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  22
  23 use strict;
  24 #use warnings; FIXME - Bug 2505
  25 use C4::Context;
  26
  27 require Exporter;
  28
  29 use vars qw($VERSION @ISA @EXPORT);
  30
  31 # set the version for version checking
  32 $VERSION = 3.07.00.049;
  33
  34 =head1 NAME
  35
  36 C4::Maintenance - Koha catalog maintenance functions
  37
  38 =head1 SYNOPSIS
  39
  40   use C4::Maintenance;
  41
  42 =head1 DESCRIPTION
  43
  44 The functions in this module perform various catalog-maintenance
  45 functions, including deleting and undeleting books, fixing
  46 miscategorized items, etc.
  47
  48 =head1 FUNCTIONS
  49
  50 =cut
  51
  52 @ISA = qw(Exporter);
  53 @EXPORT = qw(&listsubjects &shiftgroup &deletedbib &undeletebib
  54 &updatetype &logaction);
  55
  56 =head2 listsubjects
  57
  58   ($count, $results) = &listsubjects($subject, $n, $offset);
  59
  60 Finds the subjects that begin with C<$subject> in the bibliosubject
  61 table of the Koha database.
  62
  63 C<&listsubjects> returns a two-element array. C<$results> is a
  64 reference-to-array, in which each element is a reference-to-hash
  65 giving information about the given subject. C<$count> is the number of
  66 elements in C<@{$results}>.
  67
  68 Probably the only interesting field in C<$results->[$i]> is
  69 C<subject>, the subject in question.
  70
  71 C<&listsubject> returns up to C<$n> items, starting at C<$offset>. If
  72 C<$n> is 0, it will return all matching subjects.
  73
  74 =cut
  75
  76 #'
  77 # FIXME - This API is bogus. The way it's currently used, it should
  78 # just return a list of strings.
  79 sub listsubjects {
  80   my ($sub,$num,$offset)=@_;
  81   my $dbh = C4::Context->dbh;
  82   my $query="Select * from bibliosubject where subject like ? group by subject";
  83   my @bind = ("$sub%");
  84   # FIXME - Make $num and $offset optional.
  85   # If $num was given, make sure $offset was, too.
  86   if ($num != 0){
  87     $query.=" limit ?,?";
  88     push(@bind,$offset,$num);
  89   }
  90   my $sth=$dbh->prepare($query);
  91 #  print $query;
  92   $sth->execute(@bind);
  93   my @results;
  94   my $i=0;
  95   while (my $data=$sth->fetchrow_hashref){
  96     $results[$i]=$data;
  97     $i++;
  98   }
  99   $sth->finish;
 100   return($i,\@results);
 101 }
 102
 103 =head2 shiftgroup
 104
 105   &shiftgroup($biblionumber, $biblioitemnumber);
 106
 107 Changes the biblionumber associated with a given biblioitem.
 108 C<$biblioitemnumber> is the number of the biblioitem to change.
 109 C<$biblionumber> is the biblionumber to associate it with.
 110
 111 =cut
 112
 113 #'
 114 sub shiftgroup{
 115   my ($biblionumber,$bi)=@_;
 116   my $dbh = C4::Context->dbh;
 117   my $sth=$dbh->prepare("update biblioitems set biblionumber=? where biblioitemnumber=?");
 118   $sth->execute($biblionumber,$bi);
 119   $sth->finish;
 120   $sth=$dbh->prepare("update items set biblionumber=? where biblioitemnumber=?");
 121   $sth->execute($biblionumber,$bi);
 122   $sth->finish;
 123 }
 124
 125 =head2 deletedbib
 126
 127   ($count, $results) = &deletedbib($title);
 128
 129 Looks up deleted books whose title begins with C<$title>.
 130
 131 C<&deletedbib> returns a two-element list. C<$results> is a
 132 reference-to-array; each element is a reference-to-hash whose keys are
 133 the fields of the deletedbiblio table in the Koha database. C<$count>
 134 is the number of elements in C<$results>.
 135
 136 =cut
 137
 138 #'
 139 sub deletedbib{
 140   my ($title)=@_;
 141   my $dbh = C4::Context->dbh;
 142   my $sth=$dbh->prepare("Select * from deletedbiblio where title like ? order by title");
 143   $sth->execute("$title%");
 144   my @results;
 145   my $i=0;
 146   while (my $data=$sth->fetchrow_hashref){
 147     $results[$i]=$data;
 148     $i++;
 149   }
 150   $sth->finish;
 151   return($i,\@results);
 152 }
 153
 154 =head2 undeletebib
 155
 156   &undeletebib($biblionumber);
 157
 158 Undeletes a book. C<&undeletebib> looks up the book with the given
 159 biblionumber in the deletedbiblio table of the Koha database, and
 160 moves its entry to the biblio table.
 161
 162 =cut
 163
 164 #'
 165 sub undeletebib{
 166   my ($biblionumber)=@_;
 167   my $dbh = C4::Context->dbh;
 168   my $sth=$dbh->prepare("select * from deletedbiblio where biblionumber=?");
 169   $sth->execute($biblionumber);
 170   if (my @data=$sth->fetchrow_array){
 171     $sth->finish;
 172     # FIXME - Doesn't this keep the same biblionumber? Isn't this
 173     # forbidden by the definition of 'biblio'? Or doesn't it matter?
 174     my $query="INSERT INTO biblio VALUES (";
 175    my $count = @data;
 176     $query .= ("?," x $count);
 177     $query=~ s/\,$/\)/;
 178     #   print $query;
 179     $sth=$dbh->prepare($query);
 180     $sth->execute(@data);
 181     $sth->finish;
 182   }
 183   $sth=$dbh->prepare("DELETE FROM deletedbiblio WHERE biblionumber=?");
 184   $sth->execute($biblionumber);
 185   $sth->finish;
 186 }
 187
 188 =head2 updatetype
 189
 190   &updatetype($biblioitemnumber, $itemtype);
 191
 192 Changes the type of the item with the given biblioitemnumber to be
 193 C<$itemtype>.
 194
 195 =cut
 196
 197 #'
 198 sub updatetype{
 199   my ($bi,$type)=@_;
 200   my $dbh = C4::Context->dbh;
 201   my $sth=$dbh->prepare("Update biblioitems set itemtype=? where biblioitemnumber=?");
 202   $sth->execute($type,$bi);
 203   $sth->finish;
 204 }
 205
 206 END { }       # module clean-up code here (global destructor)
 207
 208 1;
 209 __END__
 210
 211 =head1 AUTHOR
 212
 213 Koha Development Team <http://koha-community.org/>
 214
 215 =cut