Passign the "key" "values" from JSON object to perl script

Question

I am trying to build a shopping cart application. I have all the items in shopping cart inside a javascript object called Cart. Data in Cart is of the form {"sku"=quantity} For example.

     Cart={"5x123"=1,"5x125"=3}

Now I have a form which accepts shipping and billing address.

 <form method="post" action="/perl/xxxx/echo.cgi"> 
    <table>
    <tr>
        <td>Name:</td>
        <td><input type="text" name="name" size="30" /></td>
    </tr>

    <tr>
        <td>Shipping Address:</td>
        <td><Input type="text" name="address" id="saddress" size="40" /></td>
    </tr>
    ....
    <tr>
        <td><input type="reset" /></td>
        <td><input type="submit" value="Submit Order"/></td>
    </tr>  
    </table>
   </form>

When I submit this form I need to store "sku" and "quantity" from Javascript Object Cart into DB using perl.

Could someone please tell me the easiest way to do this?

Should I ajax or hidden values in form?

If I use ajax, then how to retrieve values from Cart inside perlscript?

If I use hidden values this way

    <input type=hidden name=sku value="">
     //How to populate value field
    //I need to have as many hidden fields as the number of items in cart

Thanks,

Tim A · Accepted Answer · 2012-12-11 20:26:49Z

1

Use AJAX in the browser to submit your JavaScript object to the server. The Jquery javascript library is excellent for helping you here.

Then, use the CGI perl module in your cgi to retrieve the posted values, and the JSON module (as previously mentioned) to transform the JSON object to a perl hash.

answered Dec 11, 2012 at 20:26

Tim A

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2 Comments

Sush Over a year ago

Thanks, I am pretty new to AJAX and JQuery. Here is the AJAX call I created. $(':submit').on('click',function(e){ if(!validate_fields_on_submit()) { e.preventDefault(); return; } $.ajax({ dataType : 'text', // the datatype you are returning url: '/perl/xxxx/store.cgi', data:Cart, success:function (msg){ // data is the data returned from the ajax call handle.innerHTML = msg; } }); Is this right?

Tim A Over a year ago

difficult to check syntax when it's in a comment like that, but the parts all seem to be there.

uptownnickbrown · Accepted Answer · 2012-12-11 20:09:19Z

0

I suspect ajax is the way to go. To read your Cart json object in Perl, use the JSON module, specifically decode_json. It'll convert your data into a perl-friendly hash, which you can then reference as needed.

answered Dec 11, 2012 at 20:09

uptownnickbrown

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