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File:C4/NewsChannels.pm
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1package C4::NewsChannels;
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
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use strict;
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use warnings;
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use C4::Context;
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use C4::Dates qw(format_date);
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use vars qw($VERSION @ISA @EXPORT);
27
28BEGIN {
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        $VERSION = 3.01; # set the version for version checking
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        @ISA = qw(Exporter);
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        @EXPORT = qw(
32                &GetNewsToDisplay
33                &add_opac_new &upd_opac_new &del_opac_new &get_opac_new &get_opac_news
34        );
35}
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=head1 NAME

C4::NewsChannels - Functions to manage OPAC and intranet news

=head1 DESCRIPTION

This module provides the functions needed to mange OPAC and intranet news.

=head1 FUNCTIONS

=cut
48
49sub add_opac_new {
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    my ($title, $new, $lang, $expirationdate, $timestamp, $number) = @_;
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    my $dbh = C4::Context->dbh;
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    my $sth = $dbh->prepare("INSERT INTO opac_news (title, new, lang, expirationdate, timestamp, number) VALUES (?,?,?,?,?,?)");
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    $sth->execute($title, $new, $lang, $expirationdate, $timestamp, $number);
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    $sth->finish;
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    return 1;
56}
57
58sub upd_opac_new {
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    my ($idnew, $title, $new, $lang, $expirationdate, $timestamp,$number) = @_;
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    my $dbh = C4::Context->dbh;
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    my $sth = $dbh->prepare("
62        UPDATE opac_news SET
63            title = ?,
64            new = ?,
65            lang = ?,
66            expirationdate = ?,
67            timestamp = ?,
68            number = ?
69        WHERE idnew = ?
70    ");
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    $sth->execute($title, $new, $lang, $expirationdate, $timestamp,$number,$idnew);
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    $sth->finish;
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    return 1;
74}
75
76sub del_opac_new {
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    my ($ids) = @_;
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    if ($ids) {
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        my $dbh = C4::Context->dbh;
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        my $sth = $dbh->prepare("DELETE FROM opac_news WHERE idnew IN ($ids)");
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        $sth->execute();
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        $sth->finish;
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        return 1;
84    } else {
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        return 0;
86    }
87}
88
89sub get_opac_new {
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    my ($idnew) = @_;
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    my $dbh = C4::Context->dbh;
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    my $sth = $dbh->prepare("SELECT * FROM opac_news WHERE idnew = ?");
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    $sth->execute($idnew);
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    my $data = $sth->fetchrow_hashref;
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    $data->{$data->{'lang'}} = 1 if defined $data->{lang};
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    $data->{expirationdate} = format_date($data->{expirationdate});
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    $data->{timestamp} = format_date($data->{timestamp});
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    $sth->finish;
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    return $data;
100}
101
102sub get_opac_news {
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    my ($limit, $lang) = @_;
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    my $dbh = C4::Context->dbh;
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    my $query = "SELECT *, timestamp AS newdate FROM opac_news";
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    if ($lang) {
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        $query.= " WHERE lang = '" .$lang ."' ";
108    }
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    $query.= " ORDER BY timestamp DESC ";
110    #if ($limit) {
111    # $query.= "LIMIT 0, " . $limit;
112    #}
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    my $sth = $dbh->prepare($query);
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    $sth->execute();
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    my @opac_news;
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    my $count = 0;
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    while (my $row = $sth->fetchrow_hashref) {
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        if ((($limit) && ($count < $limit)) || (!$limit)) {
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            $row->{'newdate'} = format_date($row->{'newdate'});
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            $row->{'expirationdate'} = format_date($row->{'expirationdate'});
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            push @opac_news, $row;
122        }
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        $count++;
124    }
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    return ($count, \@opac_news);
126}
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=head2 GetNewsToDisplay

    $news = &GetNewsToDisplay($lang);
    C<$news> is a ref to an array which containts
    all news with expirationdate > today or expirationdate is null.

=cut
135
136sub GetNewsToDisplay {
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    my $lang = shift;
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    my $dbh = C4::Context->dbh;
139    # SELECT *,DATE_FORMAT(timestamp, '%d/%m/%Y') AS newdate
140
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    my $query = "
141     SELECT *,timestamp AS newdate
142     FROM opac_news
143     WHERE (
144        expirationdate >= CURRENT_DATE()
145        OR expirationdate IS NULL
146        OR expirationdate = '00-00-0000'
147      )
148      AND `timestamp` <= CURRENT_DATE()
149      AND lang = ?
150      ORDER BY number
151    "; # expirationdate field is NOT in ISO format?
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    my $sth = $dbh->prepare($query);
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    $sth->execute($lang);
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    my @results;
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    while ( my $row = $sth->fetchrow_hashref ){
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                $row->{newdate} = format_date($row->{newdate});
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        push @results, $row;
158    }
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    return \@results;
160}
161
1621;