/[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 - (hide annotations)
Mon Apr 13 14:26:46 2009 UTC (10 years, 2 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 dpavlin 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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