/[SQL2XLS]/sql2xlsx.cgi
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Revision 21 - (show annotations)
Mon Nov 3 23:19:40 2008 UTC (15 years, 4 months ago) by dpavlin
Original Path: sql2xls.cgi
File size: 6025 byte(s)
support multiple SQL queries in one file, for example
to use create temporary time to speedup reporting

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 my $dbh = DBI->connect($dsn . $database,$user,$passwd, { RaiseError => 1, AutoCommit => 0 }) || die $DBI::errstr;
122
123 sub _c {
124 return shift unless $db_encoding;
125 return decode( $db_encoding, shift );
126 }
127
128 foreach my $sql_file (@sql_files) {
129
130 my $sheet_name = $sql_file;
131 $sheet_name =~ s/\d+[_-]//;
132 $sheet_name =~ s/_/ /g;
133 $sheet_name =~ s/\.sql//;
134
135 # Add a worksheet
136 warn "# clipping sheet name '$sheet_name' to 31 char limit\n" if length $sheet_name > 31;
137 my $worksheet = $workbook->addworksheet( substr($sheet_name,0,31) );
138
139 print STDERR "working on $sql_file\n" if ($debug);
140
141 open(SQL,"$sql_dir/$sql_file") || die "can't open sql file '$sql_dir/$sql_file': $!";
142 my $comment = '';
143 my $full_sql = "";
144 while(<SQL>) {
145 chomp;
146 if (/^\\c\s+(\S+)/) {
147 $dbh->disconnect if $dbh;
148 print STDERR "## connect to $1\n" if $debug;
149 $dbh = DBI->connect($dsn . $1,$user,$passwd, { RaiseError => 1, AutoCommit => 0 }) || die $DBI::errstr;
150 } elsif (/^--(.+)/) {
151 $comment.=$1;
152 } else {
153 $full_sql.= ' ' . $_;
154 }
155 }
156 close(SQL);
157
158 $full_sql =~ s/\s\s+/ /gs;
159 $full_sql .= ';' unless $full_sql =~ m/;\s*/s;
160
161 print STDERR "sql: $full_sql\ncomment: $comment\n" if ($debug);
162
163 my $row = 0;
164
165 if ($comment) {
166
167 # Add and define a format
168 my $fmt_comment = $workbook->addformat(); # Add a format
169 $fmt_comment->set_bold();
170
171 $comment =~ s/^\s+//;
172 $comment =~ s/\s+$//;
173
174 $worksheet->write($row, 0, _c($comment), $fmt_comment);
175 $row+=2;
176 }
177
178 my $fmt_header = $workbook->addformat(); # Add a format
179 $fmt_header->set_italic();
180
181 foreach my $sql ( split(/;/, $full_sql ) ) {
182
183 warn "SQL: $sql\n" if $debug;
184
185 my $sth = $dbh->prepare($sql);
186 $sth->execute();
187
188 next unless $sth->{NAME}; # $sth->rows doesn't work for insert into with MySQL
189
190 my @types = eval {
191 map { $dbh->type_info($_) ? $dbh->type_info($_)->{TYPE_NAME} : '?' } @{ $sth->{TYPE} };
192 };
193
194 for(my $col=0; $col<=$#{ $sth->{NAME} }; $col++) {
195 $worksheet->write($row, $col, ${ $sth->{NAME} }[$col], $fmt_header);
196 }
197 $row++;
198
199 while (my @row = $sth->fetchrow_array() ) {
200 for(my $col=0; $col<=$#row; $col++) {
201 my $data = $row[$col];
202 next unless defined $data;
203 if ( $types[$col] && $types[$col] =~ m/^date/i ) {
204 $data .= 'T' if $data =~ m/^\d\d\d\d-\d\d-\d\d$/;
205 $data =~ s/^(\d\d\d\d-\d\d-\d\d)\s(\d\d:\d\d:\d\d)$/$1T$2/;
206 warn "## by type datetime $data\n" if $debug;
207 $worksheet->write_date_time( $row, $col, $data, $date_format );
208 } elsif ( $data =~ s/^(\d\d\d\d-\d\d-\d\d)[\sT](\d\d:\d\d:\d\d)$/$1T$2/ ) {
209 warn "## heuristic date time: $1T$2\n" if $debug;
210 $worksheet->write_date_time( $row, $col, "$1T$2", $date_format );
211 } else {
212 $worksheet->write($row, $col, _c( $data ) );
213 }
214 }
215 $row++;
216 }
217
218 $row++; # separete queries by one row
219 }
220 }
221
222 $dbh->disconnect;
223
224 1;
225
226 __END__
227

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