/[SQL2XLS]/sql2xlsx.cgi
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Revision 22 - (show annotations)
Thu Nov 6 10:37:17 2008 UTC (15 years, 4 months ago) by dpavlin
Original Path: sql2xls.cgi
File size: 6116 byte(s)
use "set names '$db_encoding'" to for MySQL to get
correct character encoding in generated Excel
1 #!/usr/bin/perl -T
2 use warnings;
3 use strict;
4
5 =head1 NAME
6
7 sql2xls.pl - convert sql queries on file system to Excel file
8
9 =head1 USAGE
10
11 Each file in current directory which ends in C<*.sql> will
12 be converted to Excel sheet. If you want to have specific order, you can
13 prefix filenames with numbers which will be striped when creating sheet
14 names.
15
16 Comments in sql files (lines beginning with C<-->) will be placed
17 in first line in bold.
18
19 To specify database on which SQL query is executed
20 C<\c database> syntax is supported.
21
22 You can also run script from command line, and it will produce
23 C<sql_reports.xls> file.
24
25 If run within directory, it will use files in it to produce file.
26
27 When called as CGI, directory name can be appended to name of script
28 to produce report for any sub-directory within directory where
29 C<sql2xls.cgi> is installed.
30
31 =head1 INSTALLATION
32
33 Only required file is this script C<< sql2xls.cgi >>
34
35 If your server is configured to execute C<.cgi> files, you can
36 drop this script anywhere, but you can also add something like
37
38 ScriptAlias /xls-reports /srv/SQL2XLS/sql2xls.cgi
39
40 in Apache's virtual host configuration to get nice URLs
41
42 To configure default database, user, password and other settings create
43 C<config.pl> file in same directory in which C<sql2xls.cgi> is with something
44 like this:
45
46 $dsn = 'DBI:mysql:dbname=';
47 $database = 'database';
48 $user = 'user';
49 $passwd = 'password';
50 $path = 'sql_reports.xls';
51
52 $db_encoding = 'utf-8';
53 $xls_date_format = 'dd.mm.yyyy';
54
55 $debug = 1;
56
57 =head1 SECURITY
58
59 There is none. Use apache auth modules if you need it.
60
61 =head1 AUTHOR
62
63 Dobrica Pavlinusic, dpavlin@rot13.org, L<http://svn.rot13.org/index.cgi/SQL2XLS/>
64
65 =cut
66
67 use Spreadsheet::WriteExcel;
68 use DBI;
69 use CGI::Carp qw(fatalsToBrowser);
70 use Encode qw/decode/;
71 use Data::Dump qw/dump/;
72
73 our $dsn = 'DBI:Pg:dbname=';
74 our $database = 'template1';
75 our $user = 'dpavlin';
76 our $passwd = '';
77 our $path = 'sql_reports.xls';
78
79 our $db_encoding = 'iso-8859-2';
80 our $xls_date_format = 'dd.mm.yyyy';
81
82 our $debug = 1;
83
84 my $sql_dir = $ENV{SCRIPT_FILENAME} || '.';
85 $sql_dir =~ s,/[^/]+$,,;
86
87 sub require_config {
88 my $config_path = $1 if "$sql_dir/config.pl" =~ m/^(.+)$/; # untaint
89 warn "# using $config_path\n";
90 require $config_path if -e $config_path;
91 }
92
93 require_config;
94
95 my $reports_path = $ENV{PATH_INFO} || '';
96 $reports_path =~ s/\.\.//g; # some protection against path exploits
97 $reports_path ||= shift @ARGV; # for CLI invocation
98 $sql_dir .= "/$reports_path" if -e "$sql_dir/$reports_path";
99
100 require_config;
101
102 warn "# reading SQL queries from $sql_dir\n" if $debug;
103
104 opendir(DIR, $sql_dir) || die "can't opendir $sql_dir: $!";
105 my @sql_files = sort grep { /\.sql$/i && -f "$sql_dir/$_" } readdir(DIR);
106 closedir DIR;
107
108 my $workbook;
109 if ($ENV{GATEWAY_INTERFACE} && $ENV{GATEWAY_INTERFACE} =~ m/CGI/i) {
110 # use as cgi script
111 print "Content-type: application/vnd.ms-excel\n\n";
112 $workbook = Spreadsheet::WriteExcel->new("-");
113 } else {
114 # Create a new Excel workbook
115 $workbook = Spreadsheet::WriteExcel->new( $path );
116 warn "Creating XLS file $path\n";
117 }
118
119 my $date_format = $workbook->add_format(num_format => $xls_date_format);
120
121 our $dbh;
122 sub use_database {
123 $dbh->disconnect if $dbh;
124 my $database = shift || return;
125 print STDERR "## connect to $database\n" if $debug;
126 $dbh = DBI->connect($dsn . $database,$user,$passwd, { RaiseError => 1, AutoCommit => 0 }) || die $DBI::errstr;
127 $dbh->do( qq{ set names '$db_encoding'; } ) if $db_encoding && $dsn =~ m{mysql};
128 }
129
130 use_database( $database );
131
132 sub _c {
133 return shift unless $db_encoding;
134 return decode( $db_encoding, shift );
135 }
136
137 foreach my $sql_file (@sql_files) {
138
139 my $sheet_name = $sql_file;
140 $sheet_name =~ s/\d+[_-]//;
141 $sheet_name =~ s/_/ /g;
142 $sheet_name =~ s/\.sql//;
143
144 # Add a worksheet
145 warn "# clipping sheet name '$sheet_name' to 31 char limit\n" if length $sheet_name > 31;
146 my $worksheet = $workbook->addworksheet( substr($sheet_name,0,31) );
147
148 print STDERR "working on $sql_file\n" if ($debug);
149
150 open(SQL,"$sql_dir/$sql_file") || die "can't open sql file '$sql_dir/$sql_file': $!";
151 my $comment = '';
152 my $full_sql = "";
153 while(<SQL>) {
154 chomp;
155 if (/^\\c\s+(\S+)/) {
156 use_database( $1 );
157 } elsif (/^--(.+)/) {
158 $comment.=$1;
159 } else {
160 $full_sql.= ' ' . $_;
161 }
162 }
163 close(SQL);
164
165 $full_sql =~ s/\s\s+/ /gs;
166 $full_sql .= ';' unless $full_sql =~ m/;\s*/s;
167
168 print STDERR "sql: $full_sql\ncomment: $comment\n" if ($debug);
169
170 my $row = 0;
171
172 if ($comment) {
173
174 # Add and define a format
175 my $fmt_comment = $workbook->addformat(); # Add a format
176 $fmt_comment->set_bold();
177
178 $comment =~ s/^\s+//;
179 $comment =~ s/\s+$//;
180
181 $worksheet->write($row, 0, _c($comment), $fmt_comment);
182 $row+=2;
183 }
184
185 my $fmt_header = $workbook->addformat(); # Add a format
186 $fmt_header->set_italic();
187
188 foreach my $sql ( split(/;/, $full_sql ) ) {
189
190 warn "SQL: $sql\n" if $debug;
191
192 my $sth = $dbh->prepare($sql);
193 $sth->execute();
194
195 next unless $sth->{NAME}; # $sth->rows doesn't work for insert into with MySQL
196
197 my @types = eval {
198 map { $dbh->type_info($_) ? $dbh->type_info($_)->{TYPE_NAME} : '?' } @{ $sth->{TYPE} };
199 };
200
201 for(my $col=0; $col<=$#{ $sth->{NAME} }; $col++) {
202 $worksheet->write($row, $col, ${ $sth->{NAME} }[$col], $fmt_header);
203 }
204 $row++;
205
206 while (my @row = $sth->fetchrow_array() ) {
207 for(my $col=0; $col<=$#row; $col++) {
208 my $data = $row[$col];
209 next unless defined $data;
210 if ( $types[$col] && $types[$col] =~ m/^date/i ) {
211 $data .= 'T' if $data =~ m/^\d\d\d\d-\d\d-\d\d$/;
212 $data =~ s/^(\d\d\d\d-\d\d-\d\d)\s(\d\d:\d\d:\d\d)$/$1T$2/;
213 warn "## by type datetime $data\n" if $debug;
214 $worksheet->write_date_time( $row, $col, $data, $date_format );
215 } elsif ( $data =~ s/^(\d\d\d\d-\d\d-\d\d)[\sT](\d\d:\d\d:\d\d)$/$1T$2/ ) {
216 warn "## heuristic date time: $1T$2\n" if $debug;
217 $worksheet->write_date_time( $row, $col, "$1T$2", $date_format );
218 } else {
219 $worksheet->write($row, $col, _c( $data ) );
220 }
221 }
222 $row++;
223 }
224
225 $row++; # separete queries by one row
226 }
227 }
228
229 $dbh->disconnect;
230
231 1;
232
233 __END__
234

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