Collect a website URL from users at signup in MemberPress. Allows you to store a different website URL with each user's subscription.

website-field.php

<?php
/*
Plugin Name: MemberPress Website Fields
Version: 1.0.0
Author: Caseproof, LLC
Author URI: http://caseproof.com
Description: Allow users to enter their website URL for each subscription they purchase
*/

//Signup form functions
function mepr_show_signup_fields() {
  ?>
    <div class="mp-form-row mepr_website_field">
      <div class="mp-form-label">
        <label>Website:*</label>
      </div>
      <input type="text" name="mepr_website_field" id="mepr_website_field" class="mepr-form-input" value="<?php echo (isset($_POST['mepr_website_field']))?stripslashes($_POST['mepr_website_field']):''; ?>" />
    </div>
  <?php
}

function mepr_validate_fields($errors, $user = null) {
  if(!isset($_POST['mepr_website_field']) || empty($_POST['mepr_website_field'])) {
    $errors[] = "You must enter a website URL";
  }

  return $errors;
}

function mepr_save_signup_fields($amount, $user, $prod_id, $txn_id) {
  if(!isset($_POST['mepr_website_field']) || empty($_POST['mepr_website_field'])) {
    return; //Nothing to do bro!
  }

  $txn            = new MeprTransaction($txn_id);
  $sub            = $txn->subscription();
  $website_fields = get_user_meta($user->ID, 'mepr_custom_website_fields', true);

  if(!$website_fields) {
    $website_fields = array();
  }

  if($sub !== false && $sub instanceof MeprSubscription) {
    $website_fields[] = array('txn_id'    => $txn_id,
                              'recurring' => true,
                              'sub_id'    => $sub->ID,
                              'website'   => stripslashes($_POST['mepr_website_field'])
    );
  }
  else {
    $website_fields[] = array('txn_id'    => $txn_id,
                              'recurring' => false,
                              'sub_id'    => 0,
                              'website'   => stripslashes($_POST['mepr_website_field'])
    );
  }

  update_user_meta($user->ID, 'mepr_custom_website_fields', $website_fields);
}

//Signup form hooks
add_action('mepr-before-coupon-field', 'mepr_show_signup_fields');
add_filter('mepr-validate-signup', 'mepr_validate_fields');
add_action('mepr-process-signup', 'mepr_save_signup_fields', 10, 4);

//Account Subscriptions table Functions
function mepr_add_subscriptions_th($user, $subs) {
  ?>
    <th>Site</th>
  <?php
}

function mepr_add_subscriptions_td($user, $sub, $txn, $is_recurring) {
  $website = 'None';
  $website_fields = get_user_meta($user->ID, 'mepr_custom_website_fields', true);

  if($website_fields) {
    foreach($website_fields as $f) {
      if($is_recurring && $sub->ID == $f['sub_id']) {
        $website = $f['website'];
        break;
      }
      elseif(!$is_recurring && $txn->id == $f['txn_id']) {
        $website = $f['website'];
        break;
      }
    }
  }

  ?>
    <td data-label="Website">
      <div class="mepr-account-website"><?php echo $website; ?></div>
    </td>
  <?php
}

//Account Subscriptions table hooks
add_action('mepr-account-subscriptions-th', 'mepr_add_subscriptions_th', 10, 2);
add_action('mepr-account-subscriptions-td', 'mepr_add_subscriptions_td', 10, 4);

//Admin Subscriptions table functions
function mepr_add_admin_subscriptions_cols($cols, $prefix, $lifetime) {
  $cols[$prefix.'site'] = 'Site';
  return $cols;
}

//NOT NEEDED
// function mepr_add_admin_subscriptions_sortable_cols($cols, $prefix, $lifetime) {
  // $cols[$prefix.'site'] = false;
  // return $cols;
// }

function mepr_add_admin_subscriptions_cell($column_name, $rec, $table, $attributes) {
  $user = new MeprUser($rec->user_id);

  if(strpos($column_name, '_site') !== false && (int)$user->ID > 0) {
    $website = 'None';
    $website_fields = get_user_meta($user->ID, 'mepr_custom_website_fields', true);

    if($website_fields) {
      foreach($website_fields as $f) {
        if(!$table->lifetime && $rec->ID == $f['sub_id']) {
          $website = $f['website'];
          break;
        }
        elseif($table->lifetime && $rec->ID == $f['txn_id']) {
          $website = $f['website'];
          break;
        }
      }
    }

    ?>
      <td <?php echo $attributes; ?>><?php echo $website; ?></td>
    <?php
  }
}

//Admin Subscriptions table hooks
add_filter('mepr-admin-subscriptions-cols', 'mepr_add_admin_subscriptions_cols', 10, 3);
// add_filter('mepr-admin-subscriptions-sortable-cols', 'mepr_add_admin_subscriptions_sortable_cols', 10, 3); //NOT NEEDED
add_action('mepr-admin-subscriptions-cell', 'mepr_add_admin_subscriptions_cell', 10, 4);