Turn off Update Button when maximum quantity is 1

[cochlear]

99% of my products have only item available, so normally (but not always) the update cart button is redundant, and maybe even confusing for some customers.

Unforutately I cannot simply turn the button off in admin, because occasionally customers do buy multilple-quantity products.

What I would like to see, is for the update button to disappear when all cart items have max. quantity of 1, and appear if the customer adds a multiple-quantity item to the cart.

Has anyone done something like that?

[Ajeh]

The Update button is also used to delete things from the cart ...

Would setting the Update Button to only show below the Products in the shopping_cart work?

Also, Hide Quantity box might make sense on these Products with Maximum of 1 as well ...

[cochlear]

Thanks Ajeh

The Update button is also used to delete things from the cart ...

Because most items have unchangeable quantity of 1, I imagine customers would intuitively use the delete button to delete an item from cart. The update cart button actually doesn't do anything when I click it.

But I realise the update button is occasionally useful when customers buy a product that has a quantity input box. That's why I can't turn it off in admin.

Would setting the Update Button to only show below the Products in the shopping_cart work?

Yes that's a very smart idea! It took me a while to work out that since the update button is useless for 99% of the products, I might as well place it below the #cartContentsDisplay table rather than next to every single product in the cart. It is much better now, but not perfect. I still have a single update button that is redundant 99% of the time, but not all the time, so I cannot turn it off. This button is very cheeky!

Also, Hide Quantity box might make sense on these Products with Maximum of 1 as well ...

Done that. I've also removed the "max: 1" from product listing page (great tip from you on another thread http://www.zen-cart.com/forum/showthread.php?t=39737), shopping cart page (if anyone wants to know, by commenting out $product['showMinUnits'] in line 69 of tpl_shopping_cart_default), and product info page (I think I did this one in admin).

[yellow1912]

What Im doing is: I have a single update button, when people click on that the whole cart will be updated.

[Ajeh]

Do note the admin setting in the Configuration ... Stock ...

Show Shopping Cart - Update Cart Button Location
Show on Shopping Cart Update Cart Button Location as:

1= Next to each Qty Box
2= Below all Products
3= Both Next to each Qty Box and Below all Products

[cochlear]

Do note the admin setting in the Configuration ... Stock ...

Ajeh I'm not sure how that helps me. At the moment I've got it set at 2, below all products. But as I said, I prefer to see it disappear when customers have no use for it (which would be most of the time).

[cochlear]

Let me use a pic as example. I've used the default template. See how customers would have no use for the update button in this scenario.

[Ajeh]

You could look into the shopping_cart class for this section of code and use the function to calculate how many products are Max 1 vs the quantity in the cart ... and when they match don't show the button ...

  /**
   * Method to calculate the number of items in a cart based on an abitrary property
   *
   * $check_what is the fieldname example: 'products_is_free'
   * $check_value is the value being tested for - default is 1
   * Syntax: $_SESSION['cart']->in_cart_check('product_is_free','1');
   *
   * @param string product field to check
   * @param mixed value to check for
   * @return integer number of items matching restraint
   */
  function in_cart_check($check_what, $check_value='1') { 

[cochlear]

Thanks Ajeh! This is into php codes but I'll try to work it out .