C4/Review.pm

   1 package C4::Review;
   2
   3 # Copyright 2000-2002 Katipo Communications
   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 C4::Context;
  22
  23 use vars qw($VERSION @ISA @EXPORT);
  24
  25 BEGIN {
  26         # set the version for version checking
  27         $VERSION = 3.00;
  28         require Exporter;
  29         @ISA    = qw(Exporter);
  30         @EXPORT = qw(getreview savereview updatereview numberofreviews
  31                 getreviews getallreviews approvereview deletereview);
  32 }
  33
  34 =head1 NAME
  35
  36 C4::Review - Perl Module containing routines for dealing with reviews of items
  37
  38 =head1 SYNOPSIS
  39
  40   use C4::Review;
  41
  42   my $review=getreview($biblionumber,$borrowernumber);
  43   savereview($biblionumber,$borrowernumber,$review);
  44   updatereview($biblionumber,$borrowernumber,$review);
  45   my $count=numberofreviews($biblionumber);
  46   my $reviews=getreviews($biblionumber);
  47   my $reviews=getallreviews($status);
  48
  49 =head1 DESCRIPTION
  50
  51 Review.pm provides many routines for manipulating reviews.
  52
  53 =head1 FUNCTIONS
  54
  55 =head2 getreview
  56
  57   $review = getreview($biblionumber,$borrowernumber);
  58
  59 Takes a borrowernumber and a biblionumber and returns the review of that biblio
  60
  61 =cut
  62
  63 sub getreview {
  64     my ( $biblionumber, $borrowernumber ) = @_;
  65     my $dbh   = C4::Context->dbh;
  66     my $query =
  67       "SELECT * FROM reviews WHERE biblionumber=? and borrowernumber=?";
  68     my $sth = $dbh->prepare($query);
  69     $sth->execute( $biblionumber, $borrowernumber );
  70     my $review = $sth->fetchrow_hashref();
  71     $sth->finish();
  72     return $review;
  73 }
  74
  75 sub savereview {
  76     my ( $biblionumber, $borrowernumber, $review ) = @_;
  77     my $dbh   = C4::Context->dbh;
  78     my $query = "INSERT INTO reviews (borrowernumber,biblionumber,
  79         review,approved,datereviewed) VALUES
  80   (?,?,?,0,now())";
  81     my $sth = $dbh->prepare($query);
  82     $sth->execute( $borrowernumber, $biblionumber, $review);
  83     $sth->finish();
  84 }
  85
  86 sub updatereview {
  87     my ( $biblionumber, $borrowernumber, $review ) = @_;
  88     my $dbh   = C4::Context->dbh;
  89     my $query = "UPDATE reviews SET review=?,datereviewed=now(),approved=0  WHERE borrowernumber=? and biblionumber=?";
  90     my $sth = $dbh->prepare($query);
  91     $sth->execute( $review, $borrowernumber, $biblionumber );
  92     $sth->finish();
  93 }
  94
  95 sub numberofreviews {
  96     my ($biblionumber) = @_;
  97     my $dbh            = C4::Context->dbh;
  98     my $query          =
  99       "SELECT count(*) FROM reviews WHERE biblionumber=? and approved=?";
 100     my $sth = $dbh->prepare($query);
 101     $sth->execute( $biblionumber, 1 );
 102     my $count = $sth->fetchrow_hashref;
 103
 104     $sth->finish();
 105     return ( $count->{'count(*)'} );
 106 }
 107
 108 sub getreviews {
 109     my ( $biblionumber, $approved ) = @_;
 110     my $dbh   = C4::Context->dbh;
 111     my $query =
 112 "SELECT * FROM reviews WHERE biblionumber=? and approved=? order by datereviewed desc";
 113     my $sth = $dbh->prepare($query) || warn $dbh->err_str;
 114     $sth->execute( $biblionumber, $approved );
 115     my @results;
 116     while ( my $data = $sth->fetchrow_hashref() ) {
 117         push @results, $data;
 118     }
 119     $sth->finish();
 120     return ( \@results );
 121 }
 122
 123 sub getallreviews {
 124     my ($status) = @_;
 125     my $dbh      = C4::Context->dbh;
 126     my $query    =
 127       "SELECT * FROM reviews WHERE approved=? order by datereviewed desc";
 128     my $sth = $dbh->prepare($query);
 129     $sth->execute($status);
 130     my @results;
 131     while ( my $data = $sth->fetchrow_hashref() ) {
 132         push @results, $data;
 133     }
 134     $sth->finish();
 135     return ( \@results );
 136 }
 137
 138 =head2 approvereview
 139
 140   approvereview($reviewid);
 141
 142 Takes a reviewid and marks that review approved
 143
 144 =cut
 145
 146 sub approvereview {
 147     my ($reviewid) = @_;
 148     my $dbh        = C4::Context->dbh();
 149     my $query      = "UPDATE reviews
 150                SET approved=?
 151                WHERE reviewid=?";
 152     my $sth = $dbh->prepare($query);
 153     $sth->execute( 1, $reviewid );
 154     $sth->finish();
 155 }
 156
 157 =head2 deletereview
 158
 159   deletereview($reviewid);
 160
 161 Takes a reviewid and deletes it
 162
 163 =cut
 164
 165 sub deletereview {
 166     my ($reviewid) = @_;
 167     my $dbh        = C4::Context->dbh();
 168     my $query      = "DELETE FROM reviews
 169                WHERE reviewid=?";
 170     my $sth = $dbh->prepare($query);
 171     $sth->execute($reviewid);
 172     $sth->finish();
 173 }
 174
 175 1;
 176 __END__
 177
 178 =head1 AUTHOR
 179
 180 Koha Team
 181
 182 =cut