/[sql-web-session]/index.cgi
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Revision 1 - (show annotations)
Mon Apr 13 14:26:46 2009 UTC (10 years, 5 months ago) by dpavlin
File size: 3620 byte(s)
first cut at web-based SQL generation which I see as replacement
for psql if you don't want to ssh into box
1 #!/usr/bin/perl
2
3 use warnings;
4 use strict;
5
6 use CGI qw/:standard/;
7 use CGI::Carp qw/fatalsToBrowser/; # FIXME remove for production
8 use DBI;
9 use Data::Dump qw/dump/;
10
11 our $dsn = 'DBI:Pg:dbname=syslog';
12 our $user = 'dpavlin';
13
14 my @columns = param('columns');
15 @columns = ('*') unless @columns;
16 my $table = param('table') || 'log';
17 my $order_by = param('order_by') || 'timestamp desc';
18 my $limit = param('limit') || 1000;
19 my $offset = param('offset') || 0;
20
21 print header, q|
22
23 <html>
24 <head>
25 <title>SQL Session</title>
26 <link rel="stylesheet" type="text/css" href="style.css">
27 <!-- http://jqueryjs.googlecode.com/files/jquery-1.3.2.min.js -->
28 <script type="text/javascript" src="jquery-1.3.2.min.js"></script>
29 <script type="text/javascript">
30
31 $(document).ready( function() {
32
33 function click_on_cell(e) {
34
35 var tag = e.originalTarget.tagName;
36
37 var col_nr = e.originalTarget.cellIndex;
38
39 var column = $('table#results th:nth-child(' + ( col_nr + 1 ) + ')').text();
40 var where_operator = '=';
41 var where_value = window.getSelection().getRangeAt(0).cloneContents().textContent;
42 if ( where_value.length == 0 )
43 where_value = e.originalTarget.textContent;
44 else
45 where_value = '%' + where_value + '%';
46
47 console.debug('click on ', this, e,
48 e.originalTarget,
49 column, where_operator, where_value
50 );
51
52 if ( tag == 'TH' ) {
53 console.info('header', column);
54 } else if ( tag = 'TD' ) {
55 console.info('column', column, where_operator, where_value);
56 $('form#sql input[name=where_value]').attr('value', where_value);
57 $('form#sql select[name=where_column]').attr('options').selectedIndex = col_nr;
58 } else {
59 console.error('unknown click on ', tag, e);
60 }
61
62 };
63
64 $('table#results').bind('mouseup', click_on_cell);
65
66 console.info('ready');
67 });
68
69 </script>
70 </head>
71 <body>
72 |;
73
74 my $dbh = DBI->connect( $dsn, $user, '', { RaiseError => 1 } ) || die $DBI::errstr;
75
76 my @data = ( $limit, $offset );
77
78 my $c = join(',', @columns);
79 my $sql = "select $c from $table ";
80 if ( param('where_operator') && length( param('where_value') ) > 0 ) {
81 $sql .= " where " . param('where_column') . ' ' . param('where_operator') . ' ?';
82 unshift @data, param('where_value');
83 }
84 $sql .= " limit ? offset ?";
85
86 print qq|<code>$sql<br>|, dump( @data ), qq|</code>|;
87
88 my $sth = $dbh->prepare( $sql );
89
90 $sth->execute( @data );
91
92 @columns = @{ $sth->{NAME} };
93
94 print qq|<table id="results">|;
95
96 my $counter = 0;
97 sub table_row {
98 my $cell = shift;
99 my $class = $counter++ % 2 == 0 ? ' class=o' : '';
100 return
101 qq|<tr $class><$cell>|
102 . join( qq|</$cell><$cell>|, @_ )
103 . qq|</$cell></tr>|
104 ;
105
106 }
107
108 print table_row( 'th', @columns );
109
110 while ( my @row = $sth->fetchrow_array ) {
111 print table_row( 'td', @row );
112 }
113
114 print
115 qq|</table>|
116 , start_form( -id => 'sql' )
117
118 , qq|<label for=columns>select</label>|
119 , checkbox_group( -name => 'columns', -values => [ @columns ], -default => [ @columns ] )
120
121 , qq|<label for=from>from</label>|
122 , textfield( -name => 'from', -value => $table, -default => 'log' )
123
124 , qq|<label for=where>where</label>|
125 , popup_menu( -name => 'where_column', -values => [ @columns ] ),
126 , popup_menu( -name => 'where_operator', -values => [ 'like', 'not like', '=', '!=' ])
127 , textfield( -name => 'where_value' )
128
129 , qq|<label for=order_by>order by</label>|
130 , textfield( -name => 'order_by' -value => $order_by )
131
132 , qq|<label for=limit>limit</label>|
133 , textfield( -name=> 'limit', -default => 1000, -size => 4 )
134
135 , qq|<label for=offset>offset</label>|
136 , textfield( -name=> 'offset', -default => 0, -size => 4 )
137
138 , submit( -name => 'execute', -value => 'execute' )
139
140 , end_form
141
142
143 , qq|</body></html>|
144 ;

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