C4/Branch.pm

   1 package C4::Branch;
   2
   3 # This file is part of Koha.
   4 #
   5 # Koha is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # Koha is distributed in the hope that it will be useful, but
  11 # WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  17
  18
  19 use strict;
  20 #use warnings; FIXME - Bug 2505
  21 require Exporter;
  22 use C4::Context;
  23 use Koha::LibraryCategories;
  24
  25 use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
  26
  27 BEGIN {
  28         # set the version for version checking
  29     $VERSION = 3.07.00.049;
  30         @ISA    = qw(Exporter);
  31         @EXPORT = qw(
  32                 &GetBranchName
  33                 &GetBranch
  34                 &GetBranches
  35                 &GetBranchesLoop
  36                 &mybranch
  37         );
  38     @EXPORT_OK = qw( &onlymine &mybranch );
  39 }
  40
  41 =head1 NAME
  42
  43 C4::Branch - Koha branch module
  44
  45 =head1 SYNOPSIS
  46
  47 use C4::Branch;
  48
  49 =head1 DESCRIPTION
  50
  51 The functions in this module deal with branches.
  52
  53 =head1 FUNCTIONS
  54
  55 =head2 GetBranches
  56
  57   $branches = &GetBranches();
  58
  59 Returns informations about ALL branches, IndependentBranches Insensitive.
  60
  61 Create a branch selector with the following code.
  62
  63 =head3 in PERL SCRIPT
  64
  65     my $branches = GetBranches;
  66     my @branchloop;
  67     foreach my $thisbranch (sort keys %$branches) {
  68         my $selected = 1 if $thisbranch eq $branch;
  69         my %row =(value => $thisbranch,
  70                     selected => $selected,
  71                     branchname => $branches->{$thisbranch}->{branchname},
  72                 );
  73         push @branchloop, \%row;
  74     }
  75
  76 =head3 in TEMPLATE
  77
  78     <select name="branch" id="branch">
  79         <option value=""></option>
  80             [% FOREACH branchloo IN branchloop %]
  81                 [% IF ( branchloo.selected ) %]
  82                     <option value="[% branchloo.value %]" selected="selected">[% branchloo.branchname %]</option>
  83                 [% ELSE %]
  84                     <option value="[% branchloo.value %]" >[% branchloo.branchname %]</option>
  85                 [% END %]
  86             [% END %]
  87     </select>
  88
  89 =head4 Note that you often will want to just use GetBranchesLoop, for exactly the example above.
  90
  91 =cut
  92
  93 sub GetBranches {
  94     my ($onlymine) = @_;
  95
  96     # returns a reference to a hash of references to ALL branches...
  97     my %branches;
  98     my $dbh = C4::Context->dbh;
  99     my $sth;
 100     my $query = "SELECT * FROM branches";
 101     my @bind_parameters;
 102     if ( $onlymine && C4::Context->userenv && C4::Context->userenv->{branch} ) {
 103         $query .= ' WHERE branchcode = ? ';
 104         push @bind_parameters, C4::Context->userenv->{branch};
 105     }
 106     $query .= " ORDER BY branchname";
 107     $sth = $dbh->prepare($query);
 108     $sth->execute(@bind_parameters);
 109
 110     my $relations_sth =
 111       $dbh->prepare("SELECT branchcode,categorycode FROM branchrelations");
 112     $relations_sth->execute();
 113     my %relations;
 114     while ( my $rel = $relations_sth->fetchrow_hashref ) {
 115         push @{ $relations{ $rel->{branchcode} } }, $rel->{categorycode};
 116     }
 117
 118     while ( my $branch = $sth->fetchrow_hashref ) {
 119         foreach my $cat ( @{ $relations{ $branch->{branchcode} } } ) {
 120             $branch->{category}{$cat} = 1;
 121         }
 122         $branches{ $branch->{'branchcode'} } = $branch;
 123     }
 124     return ( \%branches );
 125 }
 126
 127 sub onlymine {
 128     return
 129          C4::Context->preference('IndependentBranches')
 130       && C4::Context->userenv
 131       && !C4::Context->IsSuperLibrarian()
 132       && C4::Context->userenv->{branch};
 133 }
 134
 135 # always returns a string for OK comparison via "eq" or "ne"
 136 sub mybranch {
 137     C4::Context->userenv           or return '';
 138     return C4::Context->userenv->{branch} || '';
 139 }
 140
 141 sub GetBranchesLoop {  # since this is what most pages want anyway
 142     my $branch   = @_ ? shift : mybranch();     # optional first argument is branchcode of "my branch", if preselection is wanted.
 143     my $onlymine = @_ ? shift : onlymine();
 144     my $branches = GetBranches($onlymine);
 145     my @loop;
 146     foreach my $branchcode ( sort { uc($branches->{$a}->{branchname}) cmp uc($branches->{$b}->{branchname}) } keys %$branches ) {
 147         push @loop, {
 148             value      => $branchcode,
 149             branchcode => $branchcode,
 150             selected   => ($branchcode eq $branch) ? 1 : 0,
 151             branchname => $branches->{$branchcode}->{branchname},
 152         };
 153     }
 154     return \@loop;
 155 }
 156
 157 =head2 GetBranchName
 158
 159 =cut
 160
 161 sub GetBranchName {
 162     my ($branchcode) = @_;
 163     my $dbh = C4::Context->dbh;
 164     my $sth;
 165     $sth = $dbh->prepare("Select branchname from branches where branchcode=?");
 166     $sth->execute($branchcode);
 167     my $branchname = $sth->fetchrow_array;
 168     return ($branchname);
 169 }
 170
 171 =head2 GetBranch
 172
 173 $branch = GetBranch( $query, $branches );
 174
 175 =cut
 176
 177 sub GetBranch {
 178     my ( $query, $branches ) = @_;    # get branch for this query from branches
 179     my $branch = $query->param('branch');
 180     my %cookie = $query->cookie('userenv');
 181     ($branch)                || ($branch = $cookie{'branchname'});
 182     ( $branches->{$branch} ) || ( $branch = ( keys %$branches )[0] );
 183     return $branch;
 184 }
 185
 186 1;
 187 __END__
 188
 189 =head1 AUTHOR
 190
 191 Koha Development Team <http://koha-community.org/>
 192
 193 =cut