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(@ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
  26
  27 BEGIN {
  28         @ISA    = qw(Exporter);
  29         @EXPORT = qw(
  30                 &GetBranchName
  31                 &GetBranch
  32                 &GetBranches
  33                 &GetBranchesLoop
  34                 &mybranch
  35         );
  36     @EXPORT_OK = qw( &onlymine &mybranch );
  37 }
  38
  39 =head1 NAME
  40
  41 C4::Branch - Koha branch module
  42
  43 =head1 SYNOPSIS
  44
  45 use C4::Branch;
  46
  47 =head1 DESCRIPTION
  48
  49 The functions in this module deal with branches.
  50
  51 =head1 FUNCTIONS
  52
  53 =head2 GetBranches
  54
  55   $branches = &GetBranches();
  56
  57 Returns informations about ALL branches, IndependentBranches Insensitive.
  58
  59 Create a branch selector with the following code.
  60
  61 =head3 in PERL SCRIPT
  62
  63     my $branches = GetBranches;
  64     my @branchloop;
  65     foreach my $thisbranch (sort keys %$branches) {
  66         my $selected = 1 if $thisbranch eq $branch;
  67         my %row =(value => $thisbranch,
  68                     selected => $selected,
  69                     branchname => $branches->{$thisbranch}->{branchname},
  70                 );
  71         push @branchloop, \%row;
  72     }
  73
  74 =head3 in TEMPLATE
  75
  76     <select name="branch" id="branch">
  77         <option value=""></option>
  78             [% FOREACH branchloo IN branchloop %]
  79                 [% IF ( branchloo.selected ) %]
  80                     <option value="[% branchloo.value %]" selected="selected">[% branchloo.branchname %]</option>
  81                 [% ELSE %]
  82                     <option value="[% branchloo.value %]" >[% branchloo.branchname %]</option>
  83                 [% END %]
  84             [% END %]
  85     </select>
  86
  87 =head4 Note that you often will want to just use GetBranchesLoop, for exactly the example above.
  88
  89 =cut
  90
  91 sub GetBranches {
  92     my ($onlymine) = @_;
  93
  94     # returns a reference to a hash of references to ALL branches...
  95     my %branches;
  96     my $dbh = C4::Context->dbh;
  97     my $sth;
  98     my $query = "SELECT * FROM branches";
  99     my @bind_parameters;
 100     if ( $onlymine && C4::Context->userenv && C4::Context->userenv->{branch} ) {
 101         $query .= ' WHERE branchcode = ? ';
 102         push @bind_parameters, C4::Context->userenv->{branch};
 103     }
 104     $query .= " ORDER BY branchname";
 105     $sth = $dbh->prepare($query);
 106     $sth->execute(@bind_parameters);
 107
 108     my $relations_sth =
 109       $dbh->prepare("SELECT branchcode,categorycode FROM branchrelations");
 110     $relations_sth->execute();
 111     my %relations;
 112     while ( my $rel = $relations_sth->fetchrow_hashref ) {
 113         push @{ $relations{ $rel->{branchcode} } }, $rel->{categorycode};
 114     }
 115
 116     while ( my $branch = $sth->fetchrow_hashref ) {
 117         foreach my $cat ( @{ $relations{ $branch->{branchcode} } } ) {
 118             $branch->{category}{$cat} = 1;
 119         }
 120         $branches{ $branch->{'branchcode'} } = $branch;
 121     }
 122     return ( \%branches );
 123 }
 124
 125 sub onlymine {
 126     return
 127          C4::Context->preference('IndependentBranches')
 128       && C4::Context->userenv
 129       && !C4::Context->IsSuperLibrarian()
 130       && C4::Context->userenv->{branch};
 131 }
 132
 133 # always returns a string for OK comparison via "eq" or "ne"
 134 sub mybranch {
 135     C4::Context->userenv           or return '';
 136     return C4::Context->userenv->{branch} || '';
 137 }
 138
 139 sub GetBranchesLoop {  # since this is what most pages want anyway
 140     my $branch   = @_ ? shift : mybranch();     # optional first argument is branchcode of "my branch", if preselection is wanted.
 141     my $onlymine = @_ ? shift : onlymine();
 142     my $branches = GetBranches($onlymine);
 143     my @loop;
 144     foreach my $branchcode ( sort { uc($branches->{$a}->{branchname}) cmp uc($branches->{$b}->{branchname}) } keys %$branches ) {
 145         push @loop, {
 146             value      => $branchcode,
 147             branchcode => $branchcode,
 148             selected   => ($branchcode eq $branch) ? 1 : 0,
 149             branchname => $branches->{$branchcode}->{branchname},
 150         };
 151     }
 152     return \@loop;
 153 }
 154
 155 =head2 GetBranchName
 156
 157 =cut
 158
 159 sub GetBranchName {
 160     my ($branchcode) = @_;
 161     my $dbh = C4::Context->dbh;
 162     my $sth;
 163     $sth = $dbh->prepare("Select branchname from branches where branchcode=?");
 164     $sth->execute($branchcode);
 165     my $branchname = $sth->fetchrow_array;
 166     return ($branchname);
 167 }
 168
 169 =head2 GetBranch
 170
 171 $branch = GetBranch( $query, $branches );
 172
 173 =cut
 174
 175 sub GetBranch {
 176     my ( $query, $branches ) = @_;    # get branch for this query from branches
 177     my $branch = $query->param('branch');
 178     my %cookie = $query->cookie('userenv');
 179     ($branch)                || ($branch = $cookie{'branchname'});
 180     ( $branches->{$branch} ) || ( $branch = ( keys %$branches )[0] );
 181     return $branch;
 182 }
 183
 184 1;
 185 __END__
 186
 187 =head1 AUTHOR
 188
 189 Koha Development Team <http://koha-community.org/>
 190
 191 =cut