Stock by Attribute v4.0 addon for v1.3.5-1.3.9

[blag]

I have a problem with my store.

I can add a product to the shopping cart when the product has no attributes, but if the product has attributes, it is not possible to click on the 'add to cart' button. (I have sba v4.4 installed using Zen Cart 1.3.7.1, and, as far as I can tell, all the relevant files for the mod are in the correct places)

The button appears to be disabled when the customer wishes to add a product to the cart, and since this seems to be the case only for products with attributes, I am assuming that the problem is related to sba.

I have double-checked everything, as far as I can, but I don't seem to be able to fix the problem - can anyone shed some light on what might be causing this critical phenomenon, PLEASE?

[xman888]

Hello,

I installed the "Stock by Attributes" mod, and everything seemed to work fine until I made a purchase in my cart using one of the modded products.

When I arrived in my cart at the "main_page=checkout" page, it came up with the following error:

"Fatal error: Call to undefined function: zen_get_advertizer_list() in /home/xmanhos/public_html/shop/includes/templates/xman/templates/tpl_checkout_default.php on line 215"

Has anyone had experience with this error before ?

Kind regards,
Anthony

[Alex Clarke]

Does any one know if you can assign different codes to your attributes with this contribution?

For example...

Main product (code 1234)
- size small (code 1234s)
- size medium (code 1234m)
- size large (code 1234l)

Thanks in advance! :)

[kuroi]

Does any one know if you can assign different codes to your attributes with this contribution?

Alas not. Attribute level SKUs are scheduled for inclusion in Zen Cart 1.4.

[Alex Clarke]

Alas not. Attribute level SKUs are scheduled for inclusion in Zen Cart 1.4.

That was going to be my next question!! Thanks for the quick reply. :)

[blag]

BUMP! (only because I didn't receive a reply to the earlier thread in this post, and have been unable to resolve this problem- at present it's crippling my progress in making the store go live)

I have a problem with my store.

I can add a product to the shopping cart when the product has no attributes, but if the product has attributes, it is not possible to click on the 'add to cart' button. (I have sba v4.4 installed using Zen Cart 1.3.7.1, and, as far as I can tell, all the relevant files for the mod are in the correct places)

The button appears to be disabled when the customer wishes to add a product to the cart, and since this seems to be the case only for products with attributes, I am assuming that the problem is related to sba.

I have double-checked everything, as far as I can, but I don't seem to be able to fix the problem - can anyone shed some light on what might be causing this critical phenomenon, PLEASE?

Here's the generated html code for the 'dead' button, but as far as I can tell, it appears to be an active 'input' item which actually identifies the products ID:

<!--bof Add to Cart Box -->
     <div id="cartAdd">
    Add to Cart: 
<input name="cart_quantity" value="1" maxlength="6" size="4" type="text">
<br><br><input name="products_id" value="330" type="hidden">
<input src="includes/templates/template_default/buttons/english/button_in_cart.gif" alt="Add to Cart" title=" Add to Cart " type="image">
</div>
  <!--eof Add to Cart Box-->

The products ID value is correct, but there doesn't seem to be any value for the Stock ID created by sba.

Now here's the code for an add to cart button for an item that doesn't have any attribute 'variants':

<!--bof Add to Cart Box -->
<div id="cartAdd">
Add to Cart:
<input name="cart_quantity" value="1" maxlength="6" size="4" type="text">
<br><br><input name="products_id" value="276" type="hidden">
<input src="includes/templates/template_default/buttons/english/button_in_cart.gif" alt="Add to Cart" title=" Add to Cart " type="image">
</div>
<!--eof Add to Cart Box-->

Now, since the code for these buttons appears to be identical, withe exception of the products ID, can anyone cast any light as to why one working and the other NOT?

[kuroi]

Hello,

I installed the "Stock by Attributes" mod, and everything seemed to work fine until I made a purchase in my cart using one of the modded products.

When I arrived in my cart at the "main_page=checkout" page, it came up with the following error:

"Fatal error: Call to undefined function: zen_get_advertizer_list() in /home/xmanhos/public_html/shop/includes/templates/xman/templates/tpl_checkout_default.php on line 215"

Has anyone had experience with this error before ?

Kind regards,
Anthony

Anthony, you didn't just install Stock by Attributes, did you? You also installed One Step Checkout.

The error that you are getting refers to a non-existent function, zen_get_advertizer_list(). Not just one that it can't find, but one that is not even part of Zen Cart, or Stock by Attributes.

Moreover, the file that is calling it, tpl_checkout_default.php, doesn't exist in Zen Cart or Stock by Attributes either.

The latter does exist in the One Page Checkout mod which until today I had not looked at. Having now reviewed, I strongly recommend that you delete it and run. Happily it doesn't overwrite any of your core files, so there's no damage done to your underlying Zen Cart. In addition to missing code such as that which you are tripping over, this mod seems to have references to other undocumented add-ons that were presumably part of his install when he put this mod together (and may be the cause of your problem) as well as hard-coded references to his template.

The forum moderators have put a warning on this mod. I've never seen them do that before, so I guess that's a strong indication that they agree that it's not up to the usual quality.

[kuroi]

@blag

The code for your add to cart buttons with attribute and without are correctly identical apart from the product id. No stock id is added or needed at that point.

To jump from noticing that the problem occurs only with products who have attributes to assuming that it must therefore be a problem with stock by attributes is too big a leap. Stock by Attributes is just a small part of the attributes processing and setup and I wouldn't rule out other possibilities based on what you've told us.

That said Stock by Attributes would be the first place I'd look too. The reason is because there isn't a Stock by Attributes for Zen Cart 1.3.7.1. The last version 4.4 was re-tooled specifically for Zen Cart 1.3.7 and because it affects six core files that tend to change in every release, needs to be re-tooled each tool. Three of those six files changed in between 1.3.7 and 1.3.7.1, so there's a fair chance that's what's causing your problem.

I haven't reviewed those changes, and you haven't told us specifically what happens when you try to use the button or provided a link, but if I had to guess, I would suggest looking first at the includes/modules/pages/shopping_cart/header_php.php file.

[blag]

kuroi

Thanks for the response. Of course you are right, I may be wrongly assigning the blame to sba, and I had failed to understand that the version was 1.3.7 specific, but is it possible/likely that a file that is NOT included in the sba mod, but which IS included in the 1.3.7.1 update is causing this problem?

The add-to-cart button for a product with attributes appears to be dead: the cursor does not change to a hand, and the button is not clickable, but the 'quantity' box directly above the add-to-cart button IS editable.

BTW I have found a significant difference earlier in the html pages' output from my store, which be relevant.

If I examine the entire source for a page for a product which has no attributes I find this piece of html:

<!--bof Form start-->
<form name="cart_quantity" action="http://www.hohose.exphoster.com/store/bbb001-p-242.html?action=add_product" method="post" enctype="multipart/form-data">
<!--eof Form start-->

The 'same' snippet of code for a page for a product WITH attributes (but, obviously, for a different product) is:

<!--bof Form start-->
<form name="cart_quantity" action="http://www.hohose.exphoster.com/store/babette-micromesh-p-230.html?action=add_product&amp;number_of_uploads=0" method="post" enctype="multipart/form-data">
<!--eof Form start-->

I have no downloadable products, and AFAIK I have disallowed uploads/downloads in my admin, but the file with attributes appears to make a reference to uploads, even though, presumably, there shouldn't be any such reference!!

BTW by asking WinMerge to compare the full files of 1.3.7.1 unmodified, and those contained in the most recent version of sba (in the downloads section of ZC), the following files differ:
admin/includes/stylesheet.css - the difference is that the sba 'version' makes a call to makes a call to import the stock_attributes.css, otherwise files are identical
admin/orders.php - the sba version adds two lines of code, otherwise files are identical
includes/classes/order.php - apart from various lines added by sba, there are four lines which differ; i.e. 912; 915; 918; & 956
includes/functions/functions_lookups.php all changes are made by sba, otherwise files are identical
includes/modules/pages/checkout_shipping/header_php.php additional code by sba, otherwise files are identical
includes/modules/pages/shopping_cart/header_php.php there are five additional lines in the sba file at approx line 71/72, but these same lines are to be found at line 111; line 106 of the 1.3.7.1 differs from line 113 of the sba version; other than that there are additional lines in the sba version.

By comparing the 1.3.7 and the 1.3.7.1 full filesets, I find the following differences:
admin/includes/stylesheet.css - - the files are identical
admin/orders.php - lines 457 and 813 differ.
includes/classes/order.php - lines 912; 915; 918; & 956 differ.
includes/functions/functions_lookups.php files are identical
includes/modules/pages/checkout_shipping/header_php.php files are identical
includes/modules/pages/shopping_cart/header_php.php line 106 differs

It seems to me, therefore, if the difference between the two versions is causing the problems, the culprit(s) MAY POSSIBLY lie in the elements defined in red, above. Unfortunatlely that gets me no further forward, because I wouldn't know how to fix these, unless, of course reverting to original 1.3.7 version has no consequences other than fixing my problem!!

BTW: My store can be found here

Any ideas, suggestions or help, please??

[kuroi]

@blag

Always useful to give a URl and say which browser you're using. The button works perfectly in IE7. In fact it probably works perfectly in all browsers, except that when there are attributes some dodgy layout comes into play (and although it works in IE, it's actually IE that gets it wrong ).

Basically you have extended the DIV that contains your product attributes right across the screen and it is sitting on top of your add to cart button. The add to cart button is perfectly coded and working properly, you just can't get to it as it's behind an invisible barrier.

You need to tweak your stylesheet so that the button is on top, or the errant div does not take up the whole width.

BTW if you're using Firefox on PC, then you can just sneak a click at the very, very top of the button.