/[sql-web-session]/index.cgi
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Revision 4 - (hide annotations)
Mon Apr 13 21:26:43 2009 UTC (10 years, 5 months ago) by dpavlin
File size: 5213 byte(s)
order descending by default
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 dpavlin 2 use Time::HiRes qw/time/;
11 dpavlin 1
12     our $dsn = 'DBI:Pg:dbname=syslog';
13     our $user = 'dpavlin';
14    
15 dpavlin 2 require 'config.pl' if -e 'config.pl';
16    
17 dpavlin 1 my @columns = param('columns');
18     @columns = ('*') unless @columns;
19     my $table = param('table') || 'log';
20     my $limit = param('limit') || 1000;
21     my $offset = param('offset') || 0;
22    
23 dpavlin 2 my @where_parts = param('where_parts');
24    
25 dpavlin 1 print header, q|
26    
27     <html>
28     <head>
29 dpavlin 2 <title>SQL Web Session</title>
30 dpavlin 1 <link rel="stylesheet" type="text/css" href="style.css">
31     <!-- http://jqueryjs.googlecode.com/files/jquery-1.3.2.min.js -->
32     <script type="text/javascript" src="jquery-1.3.2.min.js"></script>
33     <script type="text/javascript">
34    
35     $(document).ready( function() {
36    
37     function click_on_cell(e) {
38    
39     var tag = e.originalTarget.tagName;
40    
41     var col_nr = e.originalTarget.cellIndex;
42    
43     var column = $('table#results th:nth-child(' + ( col_nr + 1 ) + ')').text();
44     var where_operator = '=';
45     var where_value = window.getSelection().getRangeAt(0).cloneContents().textContent;
46     if ( where_value.length == 0 )
47     where_value = e.originalTarget.textContent;
48     else
49     where_value = '%' + where_value + '%';
50    
51     console.debug('click on ', this, e,
52     e.originalTarget,
53     column, where_operator, where_value
54     );
55    
56     if ( tag == 'TH' ) {
57     console.info('header', column);
58 dpavlin 3 $('form#sql input[name=order_by]').attr('value', where_value + ' desc');
59 dpavlin 1 } else if ( tag = 'TD' ) {
60     console.info('column', column, where_operator, where_value);
61     $('form#sql input[name=where_value]').attr('value', where_value);
62     $('form#sql select[name=where_column]').attr('options').selectedIndex = col_nr;
63 dpavlin 3 $('form#sql input[name=add_group_by]').attr('value', column).css('display','block');
64 dpavlin 1 } else {
65     console.error('unknown click on ', tag, e);
66     }
67    
68 dpavlin 2 $('form#sql').addClass('visible');
69 dpavlin 1 };
70    
71     $('table#results').bind('mouseup', click_on_cell);
72    
73 dpavlin 2 $('#status').bind('click', function() {
74     $('form#sql').toggleClass('visible');
75     });
76    
77 dpavlin 1 console.info('ready');
78     });
79    
80     </script>
81     </head>
82     <body>
83     |;
84    
85     my $dbh = DBI->connect( $dsn, $user, '', { RaiseError => 1 } ) || die $DBI::errstr;
86    
87    
88 dpavlin 3 my $group_by = param('add_group_by');
89    
90     if ( $group_by ) {
91     @columns = ( "count($group_by)", $group_by );
92     my $g;
93     foreach my $c ( @where_parts, param('order_by'), $group_by ) {
94     $c =~ s/\s.+$//;
95     $g->{$c}++ if length($c) > 0;
96     }
97     $group_by = join( ',', keys %$g );
98     print "# $group_by g = ",dump( $g );
99     param('where_value','');
100     param('group_by', $group_by);
101     param('columns', [ @columns ], [ @columns ]);
102 dpavlin 4 param('order_by', $columns[0] . ' desc');
103 dpavlin 3 } else {
104     $group_by = param('group_by');
105     }
106    
107    
108 dpavlin 1 if ( param('where_operator') && length( param('where_value') ) > 0 ) {
109 dpavlin 2 my $where_value = param('where_value');
110     push @where_parts, param('where_column') . ' ' . param('where_operator') . " ?\t$where_value";
111     param('where_value','');
112 dpavlin 1 }
113    
114 dpavlin 3
115 dpavlin 2 my $c = join(',', @columns);
116 dpavlin 1
117 dpavlin 2 my $sql = "select $c from $table";
118     my @data;
119    
120     if ( @where_parts ) {
121     my @w;
122     foreach ( @where_parts ) {
123     my ( $w,$v ) = split(/\?\t/,$_,2);
124     push @w, "$w ?";
125     push @data, $v;
126     }
127     $sql .= ' where ' . join(' and ', @w);
128     }
129    
130 dpavlin 3
131     $sql .= ' group by ' . $group_by if $group_by;
132 dpavlin 2 $sql .= ' order by ' . param('order_by') if param('order_by');
133     $sql .= ' limit ? offset ?';
134    
135     push @data, ( $limit, $offset );
136    
137 dpavlin 3 my $sql_html = $sql;
138     {
139     my @d = @data;
140     $sql_html =~ s{\?}{dump( shift @d )}ge;
141     }
142     print qq|<code id="status">$sql_html<br>\n\r\n\r|;
143    
144 dpavlin 2 my $t = time();
145    
146 dpavlin 1 my $sth = $dbh->prepare( $sql );
147    
148     $sth->execute( @data );
149    
150 dpavlin 2 $t = time() - $t;
151    
152 dpavlin 3 print $sth->rows, qq| rows in $t s</code>|;
153 dpavlin 2
154    
155 dpavlin 3 @columns = @{ $sth->{NAME} } if $#columns == 0 && $columns[0] eq '*';
156 dpavlin 2
157 dpavlin 1 print qq|<table id="results">|;
158    
159     my $counter = 0;
160     sub table_row {
161     my $cell = shift;
162     my $class = $counter++ % 2 == 0 ? ' class=o' : '';
163     return
164     qq|<tr $class><$cell>|
165     . join( qq|</$cell><$cell>|, @_ )
166     . qq|</$cell></tr>|
167     ;
168    
169     }
170    
171     print table_row( 'th', @columns );
172    
173     while ( my @row = $sth->fetchrow_array ) {
174     print table_row( 'td', @row );
175     }
176    
177     print
178     qq|</table>|
179     , start_form( -id => 'sql' )
180    
181     , qq|<label for=columns>select</label>|
182 dpavlin 2 , checkbox_group( -name => 'columns', -values => [ @columns ], -defaults => [ @columns ] )
183 dpavlin 1
184     , qq|<label for=from>from</label>|
185     , textfield( -name => 'from', -value => $table, -default => 'log' )
186    
187     , qq|<label for=where>where</label>|
188 dpavlin 2 , checkbox_group( -name => 'where_parts', -values => [ @where_parts ], -defaults => [ @where_parts ] )
189 dpavlin 1 , popup_menu( -name => 'where_column', -values => [ @columns ] ),
190 dpavlin 2 , popup_menu( -name => 'where_operator', -values => [ 'not like', 'like', '!=', '=' ])
191 dpavlin 1 , textfield( -name => 'where_value' )
192    
193 dpavlin 3 , qq|<label for=group_by>group by</label>|
194     , textfield( -name => 'group_by' )
195     , submit( -name => 'add_group_by' )
196    
197 dpavlin 1 , qq|<label for=order_by>order by</label>|
198 dpavlin 2 , textfield( -name => 'order_by' )
199 dpavlin 1
200     , qq|<label for=limit>limit</label>|
201     , textfield( -name=> 'limit', -default => 1000, -size => 4 )
202    
203     , qq|<label for=offset>offset</label>|
204     , textfield( -name=> 'offset', -default => 0, -size => 4 )
205    
206     , submit( -name => 'execute', -value => 'execute' )
207    
208     , end_form
209    
210    
211     , qq|</body></html>|
212     ;

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