/[sql-web-session]/index.cgi
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Revision 32 - (show annotations)
Tue Dec 8 20:08:29 2009 UTC (9 years, 10 months ago) by dpavlin
File size: 5973 byte(s)
added utf-8 charset and declare us html5 page

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 use Time::HiRes qw/time/;
11
12 print qq{Content-type: text/html\r\n\r\n};
13
14 our $dsn = 'DBI:Pg:dbname=syslog';
15 our $database = ''; # if not in $dsn
16 our $user = 'dpavlin';
17 our $table = 'log';
18 our $limit = 1000;
19 our $passwd = '';
20
21 our $group_by_join = {
22 feed_id => [ 'feeds', 'id', 'title', 'link', 'timestamp' ],
23 };
24
25 require 'config.pl' if -e 'config.pl';
26
27 $table = param('table') || $table;
28 my @columns = param('columns');
29 @columns = ('*') unless @columns;
30 $limit = param('limit') || $limit;
31 my $offset = param('offset') || 0;
32
33 my @where_parts = param('where_parts');
34
35 my $dbh = DBI->connect( $dsn . $database, $user, $passwd, { RaiseError => 1 } ) || die $DBI::errstr;
36
37 sub where_from_parts {
38 return unless @_;
39 my @where_parts = @_;
40
41 warn "# where_from_parts ",dump( @where_parts );
42
43 my @w;
44 my @data;
45 foreach ( @where_parts ) {
46 my ( $w,$v ) = split(/\?\t/,$_,2);
47 push @w, "$w ?";
48 push @data, $v;
49 }
50 unshift @data, ' where ' . join(' and ', @w);
51 warn "# ",dump( @data );
52 return @data;
53 }
54
55 sub sql_html {
56 my @d = @_;
57 my $sql_html = shift @d;
58 $sql_html =~ s{\?}{dump( shift @d )}ge;
59 return $sql_html;
60 }
61
62 if ( my $group_by = param('lookup_col') ) {
63
64 my @cols = ( $group_by, "count($group_by)" );
65 my @group_by = ( $group_by );
66
67 my $join = '';
68 my @join = @{ $group_by_join->{$group_by} } if defined $group_by_join->{$group_by};
69 if ( @join ) {
70 warn "## join ",dump( @join );
71 my $join_table = shift @join;
72 my $col = shift @join;
73 $join = qq{ join $join_table on $table.$group_by = $join_table.$col };
74 my @join_cols = map { $join_table . '.' . $_ } @join;
75 push @cols, @join_cols;
76 push @group_by, @join_cols;
77 }
78
79 my @data = where_from_parts( @where_parts );
80
81 my $sql = join("\n",
82 'select', join(',', @cols), qq{
83 from $table
84 $join
85 }, shift @data, # extract where
86 'group by', join(',', @group_by), qq{
87 order by count($group_by) desc
88 limit $limit
89 }
90 );
91
92 warn "# join SQL: $sql\n";
93
94 my $t = time();
95 my $sth = $dbh->prepare( $sql );
96 $sth->execute( @data );
97 $t = time() - $t;
98 print qq|<code>|, sql_html( $sql, @data ), qq|<code>|;
99 print qq|<table><tr><th>|, join(qq|</th><th>|, @cols), qq|</th></tr>|;
100 while ( my @row = $sth->fetchrow_array ) {
101 my $n = shift @row;
102 $n = 'NULL' unless defined $n;
103 print qq|<tr><td><a href="#">$n</a></td><td>|, join(qq|</td><td>|, @row), qq|</td></tr>|;
104 }
105 print qq|</table>|;
106 print $sth->rows, qq| rows in $t s|;
107 exit;
108 }
109
110 print q|
111 <!DOCTYPE html>
112 <html>
113 <head>
114 <meta charset="utf-8">
115 <title>SQL Web Session</title>
116 <link rel="stylesheet" type="text/css" href="style.css">
117 <!-- http://jqueryjs.googlecode.com/files/jquery-1.3.2.min.js -->
118 <script type="text/javascript" src="jquery-1.3.2.min.js"></script>
119
120 <script type="text/javascript" src="sql-editor.js"></script>
121
122 </head>
123 <body>
124 |;
125
126 my $group_by = param('group_by');
127
128 if ( param('where_operator') && length( param('where_value') ) > 0 ) {
129 my $where_value = param('where_value');
130 push @where_parts, param('where_column') . ' ' . param('where_operator') . " ?\t$where_value";
131 param('where_value','');
132 }
133
134
135 my $c = join(',', @columns);
136
137 my $sql = "select $c from $table";
138 my @data;
139
140 my @where = where_from_parts( @where_parts );
141 $sql .= shift @where;
142 push @data, @where;
143
144 $sql .= ' group by ' . $group_by if $group_by;
145 $sql .= ' order by ' . param('order_by') if param('order_by');
146 $sql .= ' limit ? offset ?';
147
148 push @data, ( $limit, $offset );
149
150 print qq|<code id="status">|, sql_html( $sql, @data ), qq|<br>\n|;
151
152 my $t = time();
153
154 my $sth = $dbh->prepare( $sql );
155
156 $sth->execute( @data );
157
158 $t = time() - $t;
159
160 print $sth->rows, qq| rows in $t s</code>|;
161
162 @columns = @{ $sth->{NAME} } if $#columns == 0 && $columns[0] eq '*';
163
164 print
165 start_form( -id => 'sql', -class => 'fixed' )
166
167 , qq|<input type=button value="[=]" onclick="\$('form#sql').toggleClass('fixed'); return false;" title="toggle fixed position" class="right">|
168 , qq|<input type=button value="[x]" onclick="\$('form#sql').toggleClass('visible'); return false;" title="hide sql editor" class="right">|
169
170 , qq|<label for=columns>select</label>|
171 , checkbox_group( -name => 'columns', -values => [ @columns ], -defaults => [ @columns ] )
172
173 , qq|<label for=from>from</label>|
174 , textfield( -name => 'from', -value => $table, -default => $table )
175
176 , qq|<label for=where>where</label>|
177 , checkbox_group( -name => 'where_parts', -values => [ @where_parts ], -defaults => [ @where_parts ] )
178 , popup_menu( -name => 'where_column', -values => [ @columns ] ),
179 , popup_menu( -name => 'where_operator', -values => [ 'not like', 'like', '!=', '=' ])
180 , textfield( -name => 'where_value' )
181 , qq|
182 <span>
183 <input type=button name=lookup_col title="lookup column details">
184 <input type=button name=close_group_by value="[x]" disabled=1>
185 <div id="lookup"></div>
186 </span>
187 |
188
189 , qq|<label for=group_by>group by</label>|
190 , textfield( -name => 'group_by' )
191
192 , qq|<label for=order_by>order by</label>|
193 , textfield( -name => 'order_by' )
194
195 , qq|<label for=limit>limit</label>|
196 , textfield( -name=> 'limit', -default => $limit, -size => 4 )
197
198 , qq|<label for=offset>offset</label>|
199 , textfield( -name=> 'offset', -default => 0, -size => 4 )
200
201 , submit( -name => 'execute', -value => 'execute' )
202
203 , end_form
204 ;
205
206 #my @types = map { scalar $dbh->type_info($_)->{TYPE_NAME} } @{ $sth->{TYPE} };
207 my $types = dump( $sth->{TYPE} );
208 print qq{
209 <script type="text/javascript">
210 var column_type = $types ;
211 </script>
212 };
213
214 print qq|<table id="results">|;
215
216 my $counter = 0;
217 sub table_row {
218 my $cell = shift;
219 my $class = $counter++ % 2 == 0 ? ' class=o' : '';
220 return
221 qq|<tr $class><$cell>|
222 . join( qq|</$cell><$cell>|, @_ )
223 . qq|</$cell></tr>|
224 ;
225
226 }
227
228 print table_row( 'th', @columns );
229
230 while ( my @row = $sth->fetchrow_array ) {
231 print table_row( 'td', @row );
232 }
233
234 print qq|</table>|
235 , qq|</body></html>|
236 ;

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