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initial committ. what was I thinking?
author Robert McIntyre <rlm@mit.edu>
date Mon, 27 Sep 2010 16:57:26 -0400
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1 #!C:/strawberry/perl/bin/perl.exe
2
3 # dynamic select boxes, using a db
4
5 use strict;
6 use CGI::Ajax;
7 use CGI;
8 use DBI;
9
10 my $q = new CGI;
11
12 ### phone book database
13 # CREATE TABLE `phonebook` (
14 # `login` varchar(10) NOT NULL,
15 # `fullname` varchar(200) NOT NULL,
16 # `areacode` int(10) unsigned NOT NULL default '123',
17 # `phone` varchar(7) NOT NULL
18 # ) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT='Users and phone numbers';
19 #
20 my $exported_fx = sub {
21 my $searchterm = shift;
22 my $sql = qq< select login from phonebook where login like ? or fullname like ? >;
23 my $dbh = DBI->connect('dbi:mysql:test:localhost','guestuser','guestp4ss');
24 my $sth = $dbh->prepare( $sql );
25 $sth->execute( $searchterm . '%', $searchterm . '%' );
26
27 # start off the div contents with select init
28 my $html = qq!<select name="users" id="users" style="width:440px;"
29 onClick="details( ['users'],['ddiv'] ); return true;">\n!;
30
31
32 my $firstrow = $sth->fetch();
33 if ( defined $firstrow ) {
34 $html .= qq!<option selected>! . $firstrow->[0] . qq!</option>\n!;
35
36 # dot on each option from the db
37 while ( my $row = $sth->fetch() ) {
38 # $row->[0] will contain the login name
39 $html .= qq!<option>! . $row->[0] . qq!</option>\n!;
40 }
41
42 }
43 # close off the select and return
44 $html .= qq!</select>\n!;
45
46 return($html);
47 };
48
49 my $get_details = sub {
50 my $login = shift;
51 my $sql = qq< select * from phonebook where login = ? >;
52 my $dbh = DBI->connect('dbi:mysql:test:localhost','guestuser','guestp4ss');
53 my $sth = $dbh->prepare( $sql );
54 $sth->execute( $login );
55
56 my $html = "";
57
58 my $row = $sth->fetch();
59 if ( defined $row ) {
60 $html .= "Login: " . $row->[0] . "<br>";
61 $html .= "Full Name: " . $row->[1] . "<br>";
62 $html .= "Area Code: " . $row->[2] . "<br>";
63 $html .= "Phone: " . $row->[3] . "<br>";
64 } else {
65 $html .= "<b>No Such User $login</b>\n";
66 }
67 return($html);
68 };
69
70
71 my $Show_Form = sub {
72 my $html = "";
73 $html .= <<EOT;
74 <HTML>
75 <HEAD><title>CGI::Ajax Example</title>
76 </HEAD>
77 <BODY>
78 Who are you searching for?<br>
79 Start typing and matches will display in the select box.<br>
80 Selecting a match will give you details.&nbsp;
81 <br>
82 <form>
83 <input type="text" name="searchterm" id="searchterm" size="16"
84 onkeyup="search( ['searchterm'], ['rdiv'] ); return true;"><br>
85
86 EOT
87
88 $html .= dump_table();
89
90 $html .= <<EOT;
91 <div id="rdiv" style="border: 1px solid black; width: 440px;
92 height: 80px; overflow: auto"></div>
93 <br>
94 <div id="ddiv" style="border: 1px solid black; width: 440px;
95 height: 80px; overflow: auto"></div>
96
97 <br><a href="pjx_dynselect.txt">Show Source</a><br>
98 </form>
99 </BODY>
100 </HTML>
101 EOT
102 return $html;
103 };
104
105 sub dump_table {
106 my $sql = qq< select login from phonebook >;
107 my $dbh = DBI->connect('dbi:mysql:test:localhost','guestuser','guestp4ss');
108 my $sth = $dbh->prepare( $sql );
109 $sth->execute();
110
111 my $html = "<table><tr><th>Current Logins in DB</th></tr>";
112
113 while ( my $row = $sth->fetch() ) {
114 $html .= "<tr><td>" . $row->[0] . "</td></tr>";
115 }
116
117 $html .= "</table>";
118 return($html);
119 }
120
121 my $pjx = CGI::Ajax->new(
122 search => $exported_fx,
123 details => $get_details
124 );
125 $pjx->JSDEBUG(1);
126 $pjx->DEBUG(1);
127
128 # not show the html, which will include the embedded javascript code
129 # to handle the ajax interaction
130 print $pjx->build_html($q,$Show_Form); # this outputs the html for the page