CODEWITHSUNDEEP
phpjqueryajaxwordpresscsv
Awais Umar
Awais Umar

Reputation: 2075

WordPress - Export table as csv using jQuery/Ajax

Question:: I am developing a plugin. This plugins creates a custom table in WP database. How can I export the data from this table using Ajax?

Where I am?: I have created the hook and the handler. I can actually grab the data. Please see my code below.

add_action ( 'wp_ajax_nopriv_exportcsv', 'exprot_to_csv' );
add_action ( 'wp_ajax_exportcsv', 'exprot_to_csv' );    

<script type="text/javascript">
 jQuery("#export-csv").on("click",function(e){
        jQuery.ajax({
            type: "POST",
            url: ajaxurl,
            data: {"action":"exportcsv"},
            success: function(response){alert(response);}
            })
        });</script>        


function exprot_to_csv(){

global $wpdb;
$table_prefix = $wpdb->prefix;
$table = $table_prefix.'my_custom_table';

$result = $wpdb->get_results("SELECT * FROM ".$table."");
    foreach ($result as $row) {

        $output .="\n";
        $output .='"'.$row->post_id.'",';
        }
        $output .="\n";
        $file = "custom_table";
        $filename = $file."_".date("Y-m-d_H-i",time());
        header("Content-type: application/vnd.ms-excel");
        header("Content-disposition: csv" . date("Y-m-d") . ".csv");
        header( "Content-disposition: filename=".$filename.".csv");

        echo $output;
        exit;

}

In the alert box, I am getting comma separated post IDs as expected. But I am not sure how to move on from here. I mean how to handle this response and prompt the user to save/download the file.

Any help?

Upvotes: 2

Views: 3262

Answers (2)

user9611567
user9611567

Reputation: 11

Hopefully this will solve your problem.

In jQuery:

 window.location = response->in success

Action ajax:

Please remove all headers

echo admin_url($filename);
die;

Upvotes: 0

Christian Žagarskas
Christian Žagarskas

Reputation: 1227

You are close...! I ran into same problem, tried a similar solution.

Check this question out: Download file through an ajax call php

And THIS specific answer: https://stackoverflow.com/a/11452917 Make sure to look at Dario's answer

Summary -

  1. AJAX is not for streaming downloads.
  2. The solution here is to make an iFrame
  3. Load a PHP file into that iFrame using jQuery

  4. Serve up your file with a File Transfer

    'header('Content-Description: File Transfer');'

This works in WordPress. Use Admin-Ajax. Cheers

Upvotes: 2

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