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
  17 # with Koha; if not, write to the Free Software Foundation, Inc.,
  18 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19
  20 use strict;
  21 use warnings;
  22
  23 use C4::Context;
  24
  25 use vars qw($VERSION @ISA @EXPORT);
  26
  27 BEGIN {
  28         # set the version for version checking
  29         $VERSION = 3.00;
  30         require Exporter;
  31         @ISA    = qw(Exporter);
  32         @EXPORT = qw(getreview savereview updatereview numberofreviews numberofreviewsbybiblionumber
  33                 getreviews getallreviews approvereview deletereview);
  34 }
  35
  36 =head1 NAME
  37
  38 C4::Review - Perl Module containing routines for dealing with reviews of items
  39
  40 =head1 SYNOPSIS
  41
  42   use C4::Review;
  43
  44   my $review=getreview($biblionumber,$borrowernumber);
  45   savereview($biblionumber,$borrowernumber,$review);
  46   updatereview($biblionumber,$borrowernumber,$review);
  47   my $count=numberofreviews($biblionumber);
  48   my $reviews=getreviews($biblionumber);
  49   my $reviews=getallreviews($status);
  50
  51 =head1 DESCRIPTION
  52
  53 Review.pm provides many routines for manipulating reviews.
  54
  55 =head1 FUNCTIONS
  56
  57 =head2 getreview
  58
  59   $review = getreview($biblionumber,$borrowernumber);
  60
  61 Takes a borrowernumber and a biblionumber and returns the review of that biblio
  62
  63 =cut
  64
  65 sub getreview {
  66     my ( $biblionumber, $borrowernumber ) = @_;
  67     my $dbh   = C4::Context->dbh;
  68     my $query =
  69       "SELECT * FROM reviews WHERE biblionumber=? and borrowernumber=?";
  70     my $sth = $dbh->prepare($query);
  71     $sth->execute( $biblionumber, $borrowernumber );
  72     return $sth->fetchrow_hashref();
  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 }
  84
  85 sub updatereview {
  86     my ( $biblionumber, $borrowernumber, $review ) = @_;
  87     my $dbh   = C4::Context->dbh;
  88     my $query = "UPDATE reviews SET review=?,datereviewed=now(),approved=0  WHERE borrowernumber=? and biblionumber=?";
  89     my $sth = $dbh->prepare($query);
  90     $sth->execute( $review, $borrowernumber, $biblionumber );
  91 }
  92
  93 sub numberofreviews {
  94     my $dbh            = C4::Context->dbh;
  95     my $query          =
  96       "SELECT count(*) FROM reviews WHERE approved=?";
  97     my $sth = $dbh->prepare($query);
  98     $sth->execute( 1 );
  99   return $sth->fetchrow;
 100 }
 101
 102 sub numberofreviewsbybiblionumber {
 103     my ($biblionumber) = @_;
 104     my $dbh            = C4::Context->dbh;
 105     my $query          =
 106       "SELECT count(*) FROM reviews WHERE biblionumber=? and approved=?";
 107     my $sth = $dbh->prepare($query);
 108     $sth->execute( $biblionumber, 1 );
 109         return $sth->fetchrow;
 110 }
 111
 112 sub getreviews {
 113     my ( $biblionumber, $approved ) = @_;
 114     my $dbh   = C4::Context->dbh;
 115     my $query =
 116 "SELECT * FROM reviews WHERE biblionumber=? and approved=? order by datereviewed desc";
 117     my $sth = $dbh->prepare($query) || warn $dbh->err_str;
 118     $sth->execute( $biblionumber, $approved );
 119         return $sth->fetchall_arrayref({});
 120 }
 121
 122 sub getallreviews {
 123     my ($status, $offset, $row_count) = @_;
 124     my @params = ($status,($offset ? $offset : 0),($row_count ? $row_count : 20));
 125     my $dbh      = C4::Context->dbh;
 126     my $query    =
 127       "SELECT * FROM reviews WHERE approved=? order by datereviewed desc LIMIT ?, ?";
 128     my $sth = $dbh->prepare($query) || warn $dbh->err_str;
 129     $sth->execute(@params);
 130         return $sth->fetchall_arrayref({});
 131 }
 132
 133 =head2 approvereview
 134
 135   approvereview($reviewid);
 136
 137 Takes a reviewid and marks that review approved
 138
 139 =cut
 140
 141 sub approvereview {
 142     my ($reviewid) = @_;
 143     my $dbh        = C4::Context->dbh();
 144     my $query      = "UPDATE reviews
 145                SET approved=?
 146                WHERE reviewid=?";
 147     my $sth = $dbh->prepare($query);
 148     $sth->execute( 1, $reviewid );
 149 }
 150
 151 =head2 deletereview
 152
 153   deletereview($reviewid);
 154
 155 Takes a reviewid and deletes it
 156
 157 =cut
 158
 159 sub deletereview {
 160     my ($reviewid) = @_;
 161     my $dbh        = C4::Context->dbh();
 162     my $query      = "DELETE FROM reviews
 163                WHERE reviewid=?";
 164     my $sth = $dbh->prepare($query);
 165     $sth->execute($reviewid);
 166 }
 167
 168 1;
 169 __END__
 170
 171 =head1 AUTHOR
 172
 173 Koha Team
 174
 175 =cut