Question

Mysql to drop down box using perl

Asked by: yippekya1

Hi is it possible to connect to a database in mysql and  have a cgi.pm  perl script that  is able to do a certain select based on the choice from the drop down.Ive done a search on the web and came up with a way of doing it in jscript but I would like to be able to do it in Perl.The code I had begun is below it does not do much as Im not sure  how to do this thanks for any help.

#!/usr/local/bin/perl
print "Content-type: text/html\n\n";
use CGI;
use DBI;

$query = new CGI;





print "<html><head><title>Perl CGI ";
print "</title></head><body><h1>";
print "Perl CGI </h1><p>";

 use DBI;
   
   
    $database="sports";
    $uname="sports";
    $pwd="marathon";
   
   
    $dbh=DBI->connect("DBI:mysql:$database",$uname,$pwd) || die "Database connection not made";
   
   
    $sth = $dbh->prepare("SELECT participant_lname FROM PARTICIPANT ");
    $sth->execute;
   
   
   print $query->popup_menu(-name=>'menu_name',
                              -values=>@array,
                            -default=>'meenie');

 
   
 
                               
   while ($data= $sth->fetchrow_hashref )
{
       
 print "$data->{participant_fname}$data->{participant_lname}";
  #need to enter  something here ?
@array
                   
 
}





$dbh->disconnect();
                             
                                      

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Asked On
2004-02-16 at 08:54:54ID20886580
Tags

cgi

,

dbi

Topic

CGI Scripting

Participating Experts
1
Points
50
Comments
6

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Answers

 

by: DingDangPosted on 2004-02-17 at 22:36:38ID: 10389889

You can try use this :

#!/usr/local/bin/perl
print "Content-type: text/html\n\n";
use CGI;
use DBI;

$query = new CGI;
   
    $thisprog = "myprogram.cgi"; # change this accordingly
    $database="sports";
    $uname="sports";
    $pwd="marathon";

                $dbh= DBI->connect("DBI:mysql:$database",$uname,$pwd");

   
          $sql =qq~
                              SELECT participant_lname FROM PARTICIPANT
            ~;
      $sth = $dbh->prepare($sql);
      $sth->execute() or error("SQL","Couldn't execute statement: $DBI::errstr");
      while (($participant_lname) = $sth->fetchrow_array()) {
            
            $myoutput .=qq~
                  <option value="$participant_lname">$participant_lname
                  ~;
      }
      
      $output.=qq~
            <form action="$thisprog" method=post>
            <B>Participant Lname</B>
                  <select name="id">
                  $myoutput
                  </select>
            </form>            
            ~;

print "$output";

 

by: yippekya1Posted on 2004-02-18 at 03:38:51ID: 10391336

Hi thanks for the above unforyunately it didnt work apache  gave an error about no end of line on line 28 after the print "$output"; the code I  had done a copy and paste on and could not see any error that way ant taught appreciated this shouls be an easy task the code I am working from now is below.Ive  just added the action tag which I dont think you should need from your code.


#!/usr/bin/perl -w

 ## connect to database and add contents from webpage simple example
 print "Content-type: text/html\n\n";


use DBI;



$database="sports";
$uname="sports";
$pwd="marathon";


$dbh=DBI->connect("DBI:mysql:$database",$uname,$pwd);
#connect to the database
#enter your database name ,username and password to the connection string.






$sth = $dbh->prepare("SELECT league_description FROM LEAGUE ");
$sth->execute;

#execute your query




my (@telephone);
my $i = 0;
my $count;
while (@aRow = $sth->fetchrow())
{
   
    $telephone[$i] =@aRow[0];
    print ("\n");    
    print" $telephone[$i]";
    $i++;
   
   
}

  $thisprog = "loop.cgi";

print "<html><head><title>show table</title></head><body bgcolor=#C0C0C0> <form action="$thisprog" method=post><select><option value ="$telephone[$i]">choices</option></select></form></body></html>";





$sth->finish();
$dbh->disconnect();

 

by: DingDangPosted on 2004-02-21 at 18:21:44ID: 10423508

How about this :
--------
#!/usr/bin/perl

use DBI;
use CGI::Carp "fatalsToBrowser";          # Output errors to browser
use CGI qw(:standard);                    # Saves loads of work

# your configuration here.
$database="sports";
$uname="sports";
$pwd="marathon";
$thisprog="myprogram.cgi";

# connect to database
$dbh = DBI->connect("DBI:mysql:$database",$uname,$pwd);

#prepare the SQL statement
$sqlstatement=qq~
            SELECT league_description
            FROM LEAGUE
            ~;
$sth = $dbh->prepare($sqlstatement);

# execute the SQL statement
$sth->execute() or &error("SQL","Couldn't execute statement: $DBI::errstr");

# process the output
while (($league_description) = $sth->fetchrow_array() ) {
      
      $myoptions .=qq~<option value="$league_description">$league_description</option>\n~;
}

# finish properly
$sth->finish();

# prepare output for drop down menu
$myoutput =qq~
      <form action="$thisprog" method="post" name=mainform>
      <select name="l_desc" style=">
      $myoptions
      </select>
      </form>
      ~;

# print the output using CGI method.
print header(); print start_html(-title=>"Drop Down List");
print "$myoutput";
print end_html;

# properly disconnect database.
$dbh->disconnect();

# force exit. not really needed.
exit;
---------------

 

by: DingDangPosted on 2004-02-21 at 18:23:36ID: 10423517

instead of using please remove style=" from <select name="l_desc" style=">

 

by: yippekya1Posted on 2004-02-22 at 07:03:11ID: 10425620

Thanks that worked almost  perfectly .My prblem is that I want to use whats selected in this in a nother sql query down further in the the script normall I would do this like

$value=$query->param('l_desc');

it does not seem to be working if you had any taught on this thanks really appreciate the help

 

by: DingDangPosted on 2004-02-22 at 18:11:24ID: 10428941

don't forget to add

$query = new CGI;

under

# your configuration here.

;)

20120131-EE-VQP-002

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