php code for "if logged in" vs "if not logged in"

the canada post shipping module doesn't work with the shipping estimator unless the customer is logged in. there's been a number of threads trying to fix this problem, but no luck.

as it is now, a not-logged-in customer who clicks the "estimate shipping" button on the shopping cart page on my site will get the little pop-up window to come up, but it won't work at all.

so i want to prevent not-logged-in customers from seeing the "estimate shipping" button in the first place.

in fact, what i'd like to do is put a different button or message in the same place, saying "please login to estimate shipping costs". that would link to the login page.

so what i need is a php command with the following logic:
(1) if login=true, then display "estimate shipping" button
(2) if login=false, then display "login for shipping" button

obviously i'll have to define BUTTON_IMAGE_LOGIN_FOR_SHIPPING_ESTIMATOR at some point. that's no problem. i just need help with how to code the if/else statement for logged in status.

the relevant code is in templates/tpl_shopping_cart_default.php :

<?php
    switch (true) {
      case (SHOW_SHIPPING_ESTIMATOR_BUTTON == '1'):
?>

<div class="forward"><?php echo '<a href="javascript:popupWindow(\'' . zen_href_link(FILENAME_POPUP_SHIPPING_ESTIMATOR) . '\')">' .
 zen_image_button(BUTTON_IMAGE_SHIPPING_ESTIMATOR, BUTTON_SHIPPING_ESTIMATOR_ALT) . '</a>'; ?></div>

<?php
      break;
      case (SHOW_SHIPPING_ESTIMATOR_BUTTON == '2'):
/**
 * load the shipping estimator code if needed
 */
?>
      <?php require(DIR_WS_MODULES . zen_get_module_directory('shipping_estimator.php')); ?>

the code is a bit more complicated than it would be because of the switch in admin-->configuration-->shipping which lets you decide whether to display a shipping estimator button (for the popup) or just the actual estimate on the same page. i'm planning to use a button, meaning

case (SHOW_SHIPPING_ESTIMATOR_BUTTON == '1'):

but i guess the proper way to code this would be to embed the switch (case 1 vs case 2) within the (if login vs if not-login) statement. that way logged in customers would see either the button or the shipping estimate, depending on how the switch is set, and not-logged in customers wouldn't see it either way.

hope that makes sense...

When this is defined: $_SESSION['customer_id']

Then the customer is logged in ...

hurrah! it works...

in templates/tpl_shopping_cart.php the code above now reads:

<?php if ($_SESSION['customer_id']) { ?>

<?php
    switch (true) {
      case (SHOW_SHIPPING_ESTIMATOR_BUTTON == '1'):
?>

<div class="forward"><?php echo '<a href="javascript:popupWindow(\'' . zen_href_link(FILENAME_POPUP_SHIPPING_ESTIMATOR) . '\')">' .
 zen_image_button(BUTTON_IMAGE_SHIPPING_ESTIMATOR, BUTTON_SHIPPING_ESTIMATOR_ALT) . '</a>'; ?></div>

<?php
      break;
      case (SHOW_SHIPPING_ESTIMATOR_BUTTON == '2'):
/**
 * load the shipping estimator code if needed
 */
?>
      <?php require(DIR_WS_MODULES . zen_get_module_directory('shipping_estimator.php')); ?>

<?php
        break;
      }
?>
<?php 
 } else {
 ?>
 <div class="forward"><a href="<?php echo zen_href_link(FILENAME_LOGIN, '', 'SSL'); ?>"><?php echo LOGIN_FOR_SHIPPING_ESTIMATOR; ?></a></div>
 
<?php
             }
?>

i decided to use text instead of a button, since the phrase is too long. so i added this line to english.php

define('LOGIN_FOR_SHIPPING_ESTIMATOR', 'Please login for shipping estimate');

and it works! thanks for the help.

Dear Ajeh,

What is the php syntax for "if not logged in" ?

Thank you for your response in advance.

I tried <?php if ($messageStack->size('login') > 0) { ?> but it didn't work. :( I'm just trying anything I can find at the moment.

Is there such a thing without using "else"?

while passing the cart information to index.php?main_page=create_account

I hope I'm making sense.

Same as what I posted above ... use the $_SESSION['customer_id'] to determin if the customer is logged in or not ...

For example, a simple IF can use:

<?php
  if ($_SESSION['customer_id']  > 0) {
// I am logged in
  } else {
// I am not logged in
  }
?>

Thank you Ajeh!

By the way, here's the cart that I'm working on:

http://www.scienscope-products.com/

Hope you like this one, as it took me roughly 4 months to complete.

Nori

That is a very sharp looking ... :smile:

Too bad there isn't a nice link back to Zen Cart in the footer ... :cry:

Good luck with your site!

My apology :no:,

I will put the zen cart link back. I don't know why I removed it before, it must be because I was learning how to modify the line.

Thanks for your great comment Ajah

Thanks for making Zen Cart look so nice ... and for letting the world know about it too! :cool:

:cry:

Thanks Linda, and Zen Cart. It was a long and painful journey, but I know this is why this forum here exist and Obasan. I feel very secure here.

Nori

Let me know if you guys and gals ever need help. I'll be around.

Nori