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Hi, I'm a newbie using php, chronoforms and chronoconnectivity but I've been able to set up a component for my website for managing registrations and ranking of a competition.
There i encountered two problems i can't solve. I googled a lot but I didn't find an answer to my problems.
1) I'd like chronoconnectivity to add a coloumn on the left side of my table with a progressive rows number.
2) I'd like to add a code in the server side validation of my registration form which doesn't allows users to insert the same data twice.
eg. If data inserted in the form fields: name , surname and date_of_birth are already inserted in the same row of the database return 'Data already exist!'.
I don't know much of php and I hope someone could help me with a step by step explanation.
Thanks in advance!

[[>> Greyhead : I've copied this post over to the ChronoConnectivity Forum and will answer the CC part there. <<]]

Hi federico85,

Please try this:

$db =& JFactory::getDBO();
$name = JRequest::getString('name', '', 'post');
$surname = JRequest::getString('surname', '', 'post');
$date_of_birth = JRequest::getString('date_of_birth', '', 'post');

$query = "
    SELECT COUNT(*)
        FROM `#__some_table`
        WHERE `name` = '$name' 
            AND `surname` = '$surname' 
            AND `date_of_birth` = '$date_of_birth';
";
$db->setQuery($query);
$count = $db->loadResult();
if ( $count ) {
    return "This entry is already registered";
}

Note: You need to replace some_table with the name of your table.

Bob

Hi Bob!
Thanks for your advice regarding the rows number column... It works perfectly!
Now I don't know why the code you sent me for the server side validation doesn't work.
I copied and pasted it in the server side validation box and I replaced it as follows (with the right name of the table):

$db =& JFactory::getDBO();
$name = JRequest::getString('name', '', 'post');
$surname = JRequest::getString('surname', '', 'post');
$date_of_birth = JRequest::getString('date_of_birth', '', 'post');

$query = "
    SELECT COUNT(*)
        FROM `#__iscrizioni_olimpiadi`
        WHERE `name` = '$name' 
            AND `surname` = '$surname' 
            AND `date_of_birth` = '$date_of_birth';
";
$db->setQuery($query);
$count = $db->loadResult();
if ( $count ) {
    return "This entry is already registered";
}

Hi Bob!
Now i made it work... I was wrong replacing the name of the table.
Instead of writing #__jos_chronoforms_my_table I had to write #__chronoforms_my_table and now it works perfectly!
Thank you again...

Hi federico85,

Excellent, well done. I'm glad it's working for you.

Bob

Hi federico85,

Please try this:

$db =& JFactory::getDBO();
$name = JRequest::getString('name', '', 'post');
$surname = JRequest::getString('surname', '', 'post');
$date_of_birth = JRequest::getString('date_of_birth', '', 'post');

$query = "
    SELECT COUNT(*)
        FROM `#__some_table`
        WHERE `name` = '$name' 
            AND `surname` = '$surname' 
            AND `date_of_birth` = '$date_of_birth';
";
$db->setQuery($query);
$count = $db->loadResult();
if ( $count ) {
    return "This entry is already registered";
}

Note: You need to replace some_table with the name of your table.

Bob

Hi Bob,
I wonder where should I put this code inside chronoconnectivity 🤨

Hi s_meliana,

This was really a ChronoForms question and the code was for CFv3 where it goes in the ServerSidea validation box on the Anti-spam tab.

In ChronoForms v4 you could use a modified version of this code in a Custom ServerSide Validation action near the beginning of the On Submit action.

Bob

Thank you for your answer, Bob.

Selly