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Limit downloads on EDD
<?php
// Add this to the functions.php file on your child theme
/** Limit download purchases to one per account
* HT to Scott Deluzio for original code this is modified from https://scottdeluzio.com/easy-digital-downloads-limit-one-per-customer/
// Give nag message if customer has bought download previously
add_filter( 'edd_can_checkout', 'sd_set_purchase_limit' );
function sd_set_purchase_limit(){
$user_id = get_current_user_id(); // Get the current customer's ID
$downloads = edd_get_users_purchased_products( $user_id ); // Get all of the products the customer has purchased in the past
$can_checkout = true; // Allow checkout for now
$in_cart = edd_item_in_cart( '57' ); // Check to see if our download is in the customer's cart. Change 57 to your download's ID.
$download_name = get_the_title( '57' ); // Get the name of the download. Change 57 to your download's ID.
if ( $in_cart == true ){ // If the item isn't in the customer's cart we don't need to go any further.
if ( ! empty( $downloads ) ){ // If the customer hasn't purchased anything before we don't need to go any further.
foreach ( $downloads as $download ){ // Loop through each product the customer has purchased before.
switch ( $download->ID ) {
case '57': // If the customer has purchased the product we want to limit one per customer set an error message. Again change 57 to your product's ID. Update URL in nag message
$can_checkout = false;
edd_set_error( 'already_purchased', apply_filters( 'edd_pc_error_message', __( 'You have already purchased "'. $download_name . '". To download the file again visit <a href="#">your dashboard</a>. If there are other items in your cart you would like to purchase, remove "'. $download_name . '" to continue.' ) ) );
break;
default:
$can_checkout = true;
edd_unset_error( 'already_purchased' );
break;
}
}
edd_print_errors(); // Display the errors on the checkout page.
}
}
return $can_checkout
}
@adriannees

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@adriannees adriannees commented May 11, 2018

hmmm spoke too soon. This is preventing all checkout. Debugging.

@adriannees

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@adriannees adriannees commented May 12, 2018

ok solved it!

  1. didn't include the return $can_checkout at the end of code (my oversight)
  2. $can_checkout needs to come before error setting
  3. removed the add_action because it was producing duplicate errors.
@joelacevedor

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@joelacevedor joelacevedor commented Sep 29, 2018

Hi @adriannees,

I got here from scottdeluzio.com post about this.

I was wondering if you know how to make this code to check all the downloads on a specific category, so every time I add a download to that category I don't have to edit the code with new ID's?

Thanks
All the best.

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