/[webpac2]/trunk/lib/WebPAC/Input/Excel.pm
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Contents of /trunk/lib/WebPAC/Input/Excel.pm

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Revision 498 - (show annotations)
Sun May 14 19:45:45 2006 UTC (17 years, 11 months ago) by dpavlin
File size: 2747 byte(s)
 r653@llin:  dpavlin | 2006-05-14 21:48:48 +0200
 added Excel input format

1 package WebPAC::Input::Excel;
2
3 use warnings;
4 use strict;
5
6 use WebPAC::Input;
7 use Spreadsheet::ParseExcel;
8 use Spreadsheet::ParseExcel::Utility qw/int2col/;
9
10 =head1 NAME
11
12 WebPAC::Input::Excel - support for Microsoft Excell and compatibile files
13
14 =head1 VERSION
15
16 Version 0.01
17
18 =cut
19
20 our $VERSION = '0.01';
21
22
23 =head1 SYNOPSIS
24
25 Open Microsoft Excell, or compatibile format (for e.g. from OpenOffice.org
26 or Gnuemeric) in C<.xls> format.
27
28 my $isis = new WebPAC::Input::Excel();
29 $isis->open( path => '/path/to/workbook.xls' );
30
31 =head1 FUNCTIONS
32
33 =head2 open_db
34
35 Returns handle to database and size
36
37 my ($db,$size) = $open_db(
38 path => '/path/to/workbook.xls'
39 worksheet => 'name of sheet',
40 }
41
42 C<worksheet> is case and white-space insensitive name of worksheet in Excel
43 file to use. If not specified, it will use first worksheet in file.
44
45 =cut
46
47 my $sheet;
48
49 sub open_db {
50 my $self = shift;
51
52 my $arg = {@_};
53
54 my $log = $self->_get_logger();
55
56 $log->logdie("can't open excel file $arg->{path}: $!") unless (-r $arg->{path} && -f $arg->{path});
57
58 my $workbook = Spreadsheet::ParseExcel::Workbook->Parse($arg->{path});
59
60 my ($size, $wanted_worksheet);
61
62 if ($wanted_worksheet = $arg->{worksheet}) {
63 my $name;
64 do {
65 $sheet = shift @{ $workbook->{Worksheet} };
66 $name = $sheet->{Name};
67 $name =~ s/\s\s+/ /g;
68 } until ($name =~ m/^\s*\Q$wanted_worksheet\E\s*$/i);
69
70 } else {
71
72 $sheet = shift @{ $workbook->{Worksheet} };
73
74 }
75
76 $size = $sheet->{MaxRow} - $sheet->{MinRow};
77
78 $log->warn("opening Excel file '$arg->{path}', using ",
79 $wanted_worksheet ? '' : 'first ',
80 "worksheet: $sheet->{Name} [$size rows]"
81 );
82
83 return (42, $size);
84 }
85
86 =head2 fetch_rec
87
88 Return record with ID C<$mfn> from database
89
90 my $rec = $self->fetch_rec( $db, $mfn );
91
92 }
93
94 =cut
95
96 sub fetch_rec {
97 my $self = shift;
98
99 my (undef, $mfn) = @_;
100
101 my $log = $self->_get_logger();
102
103 $log->logdie("can't find sheet hash") unless (defined($sheet));
104 $log->logdie("sheet hash isn't Spreadsheet::ParseExcel::Worksheet") unless ($sheet->isa('Spreadsheet::ParseExcel::Worksheet'));
105
106 my $rec;
107
108 my $row = $sheet->{MinRow} + $mfn - 1;
109
110 $log->debug("fetch_rec( $mfn ) row: $row cols: ",$sheet->{MinCol}," - ",$sheet->{MaxCol});
111
112 foreach my $col ( $sheet->{MinCol} ... $sheet->{MaxCol} ) {
113 if (my $v = $sheet->{Cells}->[$row]->[$col]->{Val}) {
114 $rec->{ int2col($col) } = $v;
115 }
116 }
117
118 # add mfn only to records with data
119 $rec->{'000'} = $mfn if ($rec);
120
121 return $rec;
122 }
123
124 =head1 AUTHOR
125
126 Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >>
127
128 =head1 COPYRIGHT & LICENSE
129
130 Copyright 2005-2006 Dobrica Pavlinusic, All Rights Reserved.
131
132 This program is free software; you can redistribute it and/or modify it
133 under the same terms as Perl itself.
134
135 =cut
136
137 1; # End of WebPAC::Input::Excel

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