Sorry to drag up an old thread like this, but Ajeh, if you're still following this then maybe you could offer me some of your gold star advice?
I'm trying to implement something very similar here. I have a payment module on my silkblooms.co.uk website so people can choose a payment option at checkout called "Pay by Instalments". But I only want this payment option to appear if the contents of their cart are more than £100. that's because I don't want to waste time on payment plans that are less than that.
So, how do I make this payment module appear as an option, only if the contents of the cart are over a certain amount?
I've read over your advice above and it's helped me narrow it down, but as usualy, my lack of PHP knowledge is preventing me from applying your advice to my instalments_plan.php.
Here are the contents of the file:
[PHP]<?php
class installment extends base {
/**
* $code determines the internal 'code' name used to designate "this" payment module
*
* @var string
*/
var $code;
/**
* $title is the displayed name for this payment method
*
* @var string
*/
var $title;
/**
* $description is a soft name for this payment method
*
* @var string
*/
var $description;
/**
* $enabled determines whether this module shows or not... in catalog.
*
* @var boolean
*/
var $enabled;
/**
* @return installment
*/
function installment() {
global $order;
$this->code = 'installment';
$this->title = MODULE_PAYMENT_INSTALLMENT_TEXT_TITLE;
$this->description = MODULE_PAYMENT_INSTALLMENT_TEXT_DESCRIPTION;
$this->sort_order = MODULE_PAYMENT_INSTALLMENT_SORT_ORDER;
$this->enabled = ((MODULE_PAYMENT_INSTALLMENT_STATUS == 'True') ? true : false);
if ($this->enabled) {
if (ENABLE_SSL != 'true')
$this->enabled = false;
}
if ((int)MODULE_PAYMENT_INSTALLMENT_ORDER_STATUS_ID > 0) {
$this->order_status = MODULE_PAYMENT_INSTALLMENT_ORDER_STATUS_ID;
}
$this->num_payments = MODULE_PAYMENT_INSTALLMENT_NUMBER_PAYMENTS;
if (is_object($order)) $this->update_status();
}
/**
* calculate zone matches and flag settings to determine whether this module should display to customers or not
*
*/
function update_status() {
global $order, $db;
if ( ($this->enabled == true) && ((int)MODULE_PAYMENT_INSTALLMENT_ZONE > 0) ) {
$check_flag = false;
$check = $db->Execute("select zone_id from " . TABLE_ZONES_TO_GEO_ZONES . " where geo_zone_id = '" . MODULE_PAYMENT_INSTALLMENT_ZONE . "' and zone_country_id = '" . $order->billing['country']['id'] . "' order by zone_id");
while (!$check->EOF) {
if ($check->fields['zone_id'] < 1) {
$check_flag = true;
break;
} elseif ($check->fields['zone_id'] == $order->billing['zone_id']) {
$check_flag = true;
break;
}
$check->MoveNext();
}
if ($check_flag == false) {
$this->enabled = false;
}
}
}
/**
* JS validation which does error-checking of data-entry if this module is selected for use
* (Number, Owner, and CVV Lengths)
*
* @return string
*/
function javascript_validation() {
$js = ' if (payment_value == "' . $this->code . '") {' . "\n" .
' var cc_owner = document.checkout_payment.inst_cc_owner.value;' . "\n" .
' var cc_number = document.checkout_payment.inst_cc_number.value;' . "\n";
if (MODULE_PAYMENT_INSTALLMENT_COLLECT_CVV == 'True') {
$js .= ' var cc_cvv = document.checkout_payment.inst_cc_cvv.value;' . "\n";
}
$js .= ' if (cc_owner == "" || cc_owner.length < ' . CC_OWNER_MIN_LENGTH . ') {' . "\n" .
' error_message = error_message + "' . MODULE_PAYMENT_INSTALLMENT_TEXT_JS_CC_OWNER . '";' . "\n" .
' error = 1;' . "\n" .
' }' . "\n" .
' if (cc_number == "" || cc_number.length < ' . CC_NUMBER_MIN_LENGTH . ') {' . "\n" .
' error_message = error_message + "' . MODULE_PAYMENT_INSTALLMENT_TEXT_JS_CC_NUMBER . '";' . "\n" .
' error = 1;' . "\n" .
' }' . "\n";
if (MODULE_PAYMENT_INSTALLMENT_COLLECT_CVV == 'True') {
$js .= ' if (cc_cvv == "" || cc_cvv.length < ' . CC_CVV_MIN_LENGTH . ') {' . "\n" .
' error_message = error_message + "' . MODULE_PAYMENT_INSTALLMENT_TEXT_JS_CC_CVV . '";' . "\n" .
' error = 1;' . "\n" .
' }' . "\n";
}
$js .= ' }' . "\n";
return $js;
}
/**
* Builds set of input fields for collecting cc info
*
* @return array
*/
function compute_share() {
global $order;
return $order->info['total']/$this->num_payments;
}
function selection() {
global $order;
global $currencies;
$share = $this->compute_share();
for ($i=1; $i<13; $i++) {
$expires_month[] = array('id' => sprintf('%02d', $i), 'text' => strftime('%B',mktime(0,0,0,$i,1,2000)));
}
$today = getdate();
for ($i=$today['year']; $i < $today['year']+10; $i++) {
$expires_year[] = array('id' => strftime('%y',mktime(0,0,0,1,1,$i)), 'text' => strftime('%Y',mktime(0,0,0,1,1,$i)));
}
$explanation_text = sprintf(MODULE_PAYMENT_INSTALLMENT_TEXT_EXPLAIN_VERBAGE, $this->num_payments);
$explanation = '<a href="javascript:alert(\'' . $explanation_text . '\')">' . MODULE_PAYMENT_INSTALLMENT_TEXT_EXPLAIN_DETAILS . '</a>';
$onFocus = ' onfocus="methodSelect(\'pmt-' . $this->code . '\')"';
$selection = array('id' => $this->code,
'module' => $this->title,
'fields' => array(
array('title' => MODULE_PAYMENT_INSTALLMENT_TEXT_EXPLAIN_TITLE,
'field' => $explanation
),
array('title' => MODULE_PAYMENT_INSTALLMENT_PAYMENT_AMOUNT,
'field' => $currencies->format($share, true, $order->info['currency'], $order->info['currency_value'])
),
array('title' => MODULE_PAYMENT_INSTALLMENT_TEXT_CREDIT_CARD_OWNER,
'field' => zen_draw_input_field('inst_cc_owner', $order->billing['firstname'] . ' ' . $order->billing['lastname'], 'id="'.$this->code.'-cc-owner"' . $onFocus),
'tag' => $this->code.'-cc-owner'),
array('title' => MODULE_PAYMENT_INSTALLMENT_TEXT_CREDIT_CARD_NUMBER,
'field' => zen_draw_input_field('inst_cc_number', '', 'id="' . $this->code . '-cc-number"' . $onFocus),
'tag' => $this->code . '-cc-number'),
array('title' => MODULE_PAYMENT_INSTALLMENT_TEXT_CREDIT_CARD_EXPIRES,
'field' => zen_draw_pull_down_menu('inst_cc_expires_month', $expires_month, '', 'id="'.$this->code.'-cc-expires-month"' . $onFocus) . ' ' . zen_draw_pull_down_menu('inst_cc_expires_year', $expires_year, '', 'id="'.$this->code.'-cc-expires-year"'.$onFocus),
'tag' => $this->code.'-cc-expires-month')
));
if (MODULE_PAYMENT_INSTALLMENT_COLLECT_CVV == 'True') {
$selection['fields'][] = array('title' => MODULE_PAYMENT_INSTALLMENT_TEXT_CREDIT_CARD_CVV,
'field' => zen_draw_input_field('inst_cc_cvv', '', 'size="4" maxlength="4" id="'.$this->code.'-cc-cvv"'.$onFocus),
'tag' => $this->code.'-cc-cvv');
}
return $selection;
}
/**
* Evaluates the Credit Card Type for acceptance and the validity of the Credit Card Number & Expiration Date
*
*/
function pre_confirmation_check() {
global $_POST, $messageStack;
/**
* Load the cc_validation class
*/
include(DIR_WS_CLASSES . 'cc_validation.php');
$cc_validation = new cc_validation();
$result = $cc_validation->validate($_POST['inst_cc_number'], $_POST['inst_cc_expires_month'], $_POST['inst_cc_expires_year']);
$error = '';
switch ($result) {
case -1:
$error = sprintf(TEXT_CCVAL_ERROR_UNKNOWN_CARD, substr($cc_validation->cc_number, 0, 4));
break;
case -2:
case -3:
case -4:
$error = TEXT_CCVAL_ERROR_INVALID_DATE;
break;
case false:
$error = TEXT_CCVAL_ERROR_INVALID_NUMBER;
break;
}
/**
*
*/
if ( ($result == false) || ($result < 1) ) {
$payment_error_return = 'payment_error=' . $this->code . '&cc_owner=' . urlencode($_POST['inst_cc_owner']) . '&cc_expires_month=' . $_POST['inst_cc_expires_month'] . '&cc_expires_year=' . $_POST['inst_cc_expires_year'];
$messageStack->add_session('checkout_payment', $error . '<!-- ['.$this->code.'] -->', 'error');
zen_redirect(zen_href_link(FILENAME_CHECKOUT_PAYMENT, $payment_error_return, 'SSL', true, false));
}
$this->cc_card_type = $cc_validation->cc_type;
$this->cc_card_number = $cc_validation->cc_number;
}
/**
* Display Credit Card Information on the Checkout Confirmation Page
*
* @return array
*/
function confirmation() {
global $_POST;
$confirmation = array('title' => $this->title . ': ' . $this->cc_card_type,
'fields' => array(
array('title' => MODULE_PAYMENT_INSTALLMENT_TEXT_CREDIT_CARD_OWNER,
'field' => $_POST['inst_cc_owner']),
array('title' => MODULE_PAYMENT_INSTALLMENT_TEXT_CREDIT_CARD_NUMBER,
'field' => substr($this->cc_card_number, 0, 4) . str_repeat('X', (strlen($this->cc_card_number) - 8)) . substr($this->cc_card_number, -4)),
array('title' => MODULE_PAYMENT_INSTALLMENT_TEXT_CREDIT_CARD_EXPIRES,
'field' => strftime('%B, %Y', mktime(0,0,0,$_POST['inst_cc_expires_month'], 1, '20' . $_POST['inst_cc_expires_year'])))));
if (MODULE_PAYMENT_INSTALLMENT_COLLECT_CVV == 'True') {
$confirmation['fields'][] = array('title' => MODULE_PAYMENT_INSTALLMENT_TEXT_CREDIT_CARD_CVV,
'field' => $_POST['inst_cc_cvv']);
}
return $confirmation;
}
/**
* Build the data and actions to process when the "Submit" button is pressed on the order-confirmation screen.
* This sends the data to the payment gateway for processing.
* (These are hidden fields on the checkout confirmation page)
*
* @return string
*/
function process_button() {
global $_POST;
$process_button_string = zen_draw_hidden_field('inst_cc_owner', $_POST['inst_cc_owner']) .
zen_draw_hidden_field('inst_cc_expires', $_POST['inst_cc_expires_month'] . $_POST['inst_cc_expires_year']) .
zen_draw_hidden_field('inst_cc_type', $this->cc_card_type) .
zen_draw_hidden_field('inst_cc_number', $this->cc_card_number);
if (MODULE_PAYMENT_INSTALLMENT_COLLECT_CVV == 'True') {
$process_button_string .= zen_draw_hidden_field('inst_cc_cvv', $_POST['inst_cc_cvv']);
}
return $process_button_string;
}
/**
* Store the CC info to the order
*
*/
function before_process() {
global $_POST, $order;
if (defined('MODULE_PAYMENT_INSTALLMENT_STORE_NUMBER') && MODULE_PAYMENT_INSTALLMENT_STORE_NUMBER == 'True') {
$order->info['cc_number'] = $_POST['inst_cc_number'];
}
$order->info['cc_expires'] = $_POST['inst_cc_expires'];
$order->info['cc_type'] = $_POST['inst_cc_type'];
$order->info['cc_owner'] = $_POST['inst_cc_owner'];
$order->info['cc_cvv'] = $_POST['inst_cc_cvv'];
$len = strlen($_POST['inst_cc_number']);
$this->cc_middle = substr($_POST['inst_cc_number'], 4, ($len-8));
if ( (defined('MODULE_PAYMENT_INSTALLMENT_EMAIL')) && (zen_validate_email(MODULE_PAYMENT_INSTALLMENT_EMAIL)) ) {
$order->info['cc_number'] = substr($_POST['inst_cc_number'], 0, 4) . str_repeat('X', (strlen($_POST['inst_cc_number']) - 8)) . substr($_POST['inst_cc_number'], -4);
}
}
/**
* Send the collected information via email to the store owner, storing outer digits and emailing middle digits
*
*/
function after_process() {
global $insert_id;
$message = sprintf(MODULE_PAYMENT_INSTALLMENT_TEXT_MIDDLE_DIGITS_MESSAGE, $insert_id, $this->cc_middle);
$html_msg['EMAIL_MESSAGE_HTML'] = str_replace("\n\n",'<br />',$message);
if ( (defined('MODULE_PAYMENT_INSTALLMENT_EMAIL')) && (zen_validate_email(MODULE_PAYMENT_INSTALLMENT_EMAIL)) ) {
zen_mail(MODULE_PAYMENT_INSTALLMENT_EMAIL, MODULE_PAYMENT_INSTALLMENT_EMAIL, SEND_EXTRA_CC_EMAILS_TO_SUBJECT . $insert_id, $message, STORE_NAME, EMAIL_FROM, $html_msg, 'cc_middle_digs');
} else {
$message = MODULE_PAYMENT_INSTALLMENT_TEXT_EMAIL_WARNING . $message;
$html_msg['EMAIL_MESSAGE_HTML'] = str_replace("\n\n",'<br />',$message);
zen_mail(EMAIL_FROM, EMAIL_FROM, MODULE_PAYMENT_INSTALLMENT_TEXT_EMAIL_ERROR . SEND_EXTRA_CC_EMAILS_TO_SUBJECT . $insert_id, $message, STORE_NAME, EMAIL_FROM, $html_msg, 'cc_middle_digs');
}
}
/**
* Store additional order information
*
* @param int $zf_order_id
*/
function after_order_create($zf_order_id) {
global $db, $order;
if (MODULE_PAYMENT_INSTALLMENT_COLLECT_CVV == 'True') {
$db->execute("update " . TABLE_ORDERS . " set cc_cvv ='" . $order->info['cc_cvv'] . "' where orders_id = '" . $zf_order_id ."'");
}
}
/**
* Used to display error message details
*
* @return array
*/
function get_error() {
global $_GET;
$error = array('title' => MODULE_PAYMENT_INSTALLMENT_TEXT_ERROR,
'error' => stripslashes(urldecode($_GET['error'])));
return $error;
}
/**
* Check to see whether module is installed
*
* @return boolean
*/
function check() {
global $db;
if (!isset($this->_check)) {
$check_query = $db->Execute("select configuration_value from " . TABLE_CONFIGURATION . " where configuration_key = 'MODULE_PAYMENT_INSTALLMENT_STATUS'");
$this->_check = $check_query->RecordCount();
}
return $this->_check;
}
/**
* Install the payment module and its configuration settings
*
*/
function install() {
global $db;
$db->Execute("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, date_added) values ('Enable Credit Card Module', 'MODULE_PAYMENT_INSTALLMENT_STATUS', 'True', 'Do you want to accept instalment payments by credit card?', '6', '130', 'zen_cfg_select_option(array(\'True\', \'False\'), ', now())");
$db->Execute("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, date_added) values ('Split Credit Card Email Address', 'MODULE_PAYMENT_INSTALLMENT_EMAIL', '" . STORE_OWNER_EMAIL_ADDRESS . "', 'If an email address is entered, the middle digits of the credit card number will be sent to the email address (the outside digits are stored in the database with the middle digits censored)', '6', '131', now())");
$db->Execute("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, date_added) values ('Collect & store the CVV number', 'MODULE_PAYMENT_INSTALLMENT_COLLECT_CVV', 'True', 'Do you want to collect the CVV number. Note: If you do the CVV number will be stored in the database in an encoded format.', '6', '132', 'zen_cfg_select_option(array(\'True\', \'False\'), ', now())");
$db->Execute("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, date_added) values ('Store the Credit Card Number', 'MODULE_PAYMENT_INSTALLMENT_STORE_NUMBER', 'False', 'Do you want to store the Credit Card Number?<br /><br /><strong>WARNING: The Credit Card Number will be stored unenecrypted, and as such may represent a security problem.</strong>', '6', '133', 'zen_cfg_select_option(array(\'True\', \'False\'), ', now())");
$db->Execute("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, date_added) values ('Sort order of display', 'MODULE_PAYMENT_INSTALLMENT_SORT_ORDER', '0', 'Sort order of display. Lowest is displayed first.', '6', '134' , now())");
$db->Execute("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, use_function, set_function, date_added) values ('Payment Zone', 'MODULE_PAYMENT_INSTALLMENT_ZONE', '0', 'If a zone is selected, only enable this payment method for that zone.', '6', '135', 'zen_get_zone_class_title', 'zen_cfg_pull_down_zone_classes(', now())");
$db->Execute("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, use_function, date_added) values ('Set Order Status', 'MODULE_PAYMENT_INSTALLMENT_ORDER_STATUS_ID', '1', 'Set the status of orders made with this payment module to this value', '6', '136', 'zen_cfg_pull_down_order_statuses(', 'zen_get_order_status_name', now())");
$db->Execute("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, date_added) values ('Number of Payments', 'MODULE_PAYMENT_INSTALLMENT_NUMBER_PAYMENTS', '6', 'Total/Number of Payments = monthly payment', '6', '137', now())");
}
/**
* Remove the module and all its settings
*
*/
function remove() {
global $db;
$db->Execute("delete from " . TABLE_CONFIGURATION . " where configuration_key like 'MODULE_PAYMENT_INSTALLMENT_%'");
}
/**
* Internal list of configuration keys used for configuration of the module
*
* @return array
*/
function keys() {
return array('MODULE_PAYMENT_INSTALLMENT_STATUS', 'MODULE_PAYMENT_INSTALLMENT_COLLECT_CVV', 'MODULE_PAYMENT_INSTALLMENT_EMAIL', 'MODULE_PAYMENT_INSTALLMENT_ZONE', 'MODULE_PAYMENT_INSTALLMENT_ORDER_STATUS_ID', 'MODULE_PAYMENT_INSTALLMENT_SORT_ORDER', 'MODULE_PAYMENT_INSTALLMENT_NUMBER_PAYMENTS');
}
}
?>[/PHP]
On line 37, I can see the one I need to add some code to:
[PHP] $this->enabled = ((MODULE_PAYMENT_INSTALLMENT_STATUS == 'True') ? true : false);[/PHP]
Above, in your previous reply you said he should add this below the equivelant line:
[PHP]global $cart;
if (!IS_ADMIN_FLAG && ($_SESSION['cart']->show_total() - $_SESSION['cart']->free_shipping_prices()) <= 100) {
// show if less than or equal to $100
$this->enabled = true;
} else {
// do not show if more than $100
$this->enabled = false;
}[/PHP]
That's where I'm confused though. OK, so apart from changing the <= to a >= what do I need to change? I'm not looking to implement free shipping, I'm looking to make this payment module appear at the checkout confirmation page if the value of the cart contents exceeds £100.00
Hopefully you get this and can help. I just know it's like childs play to you this stuff :)
