Ubercart Restrict quantity - Port to Drupal7 (D7)

this is what i have done so far,against 6.x-2.x-dev
There some warnings left , i think it needs a bit more work

@RaulMuroc, like i stated above,this patch is against 6.x-2.x-dev, not 6.x-1.1

I found errors in patch.

Code:
$models = uc_product_get_models($node);

shouldSbe
$models = uc_product_get_models($node->nid);

Because in ubercart module this function get as argument $nid, not $node
function uc_product_get_models($nid, $add_blank = TRUE) {

Also code:
$key = NULL;
if ($product_qty['rqpid']) {
$key = 'rqpid';
}

Should be:
$key = array();
if ($product_qty['rqpid']) {
$key[] = 'rqpid';
}

Code:
function uc_restrict_qty_cart_item($op, &$item) {

Should be:
function uc_restrict_qty_uc_cart_item($op, &$item) {

Code:
function uc_restrict_qty_add_to_cart_data($form_values) {

Should be:
function uc_restrict_qty_uc_add_to_cart_data($form_values) {

Code:
function uc_restrict_qty_theme() {
return array(
'restrict_qty_field' => array(
'arguments' => arra('form' => null),
),
);
}

Should be:
/**
* Implementation of hook_theme().
*/
function uc_restrict_qty_theme() {
return array(
'restrict_qty_field' => array(
'render element' => 'form',
),
);
}

AND

Code:
// Themes cart Qty. boxes so they can't be changed. (currently not in use)
function theme_restrict_qty_field($element) {
return check_plain($element['#value']);
}

Should be:
// Themes cart Qty. boxes so they can't be changed. (currently not in use)
function theme_restrict_qty_field($variables) {
return check_plain($variables['form']['#value']);
}

Sorry i don't know how to make patch file. :)

Ok here is working ported d7 module.

here,this will help you with patching:
http://drupal.org/project/uc_restrict_qty/git-instructions

@Freakachoo

Thanks for the ported version. Unfortunately, it doesn't work with UC 3.0. A quick troubleshooting reveals that uc3 no longer uses hook_cart_item or hook_uc_cart_item, so the function uc_restrict_qty_uc_add_to_cart() is never called.

I too am interested in this. When I try to use rules, it tells me that the Item QTY field is not writable.. Going to see if there is another way to force a qty for a product.

I had a go too, same thing. :(

Does anyone have any plans to port this to D7 UC3? I'm compiling a list of Ubercart related modules and trying to get an idea of what still needs to get ported over.

Thanks in advance!!

Changing the issue to the correct category.

I've tested this version, but still found this error
"Notice: Undefined index: restrict_qty in uc_restrict_qty_form_alter() (line 281 of ../sites/all/modules/uc_restrict_qty/uc_restrict_qty.module)."....

my be the order already in chart form before this module installed.

+++ b/uc_restrict_qty.moduleundefined
@@ -11,17 +11,17 @@
+	return array(
+		'restrict_qty_field' => array(
+			'render element' => 'form',
+		),
+	);

@@ -171,22 +176,25 @@ function uc_restrict_qty_feature_form_submit($form, &$form_state) {
+	$key = array();
+	if ($product_qty['rqpid']) {
+		$key[] = 'rqpid';
+	}

@@ -283,17 +291,17 @@ function uc_restrict_qty_form_alter(&$form, &$form_state, $form_id) {
+	return check_plain($variables['form']['#value']);

you should use spaces, not tabs. see http://drupal.org/coding-standards#indenting

Will the 7.x-1.x-dev version be uploaded shortly?

One solution for me is the module "UC Add to Cart Tweaks":
empty the shopping cart when the add to cart form is submitted and alter the add to cart redirect URL to checkout page.

In UC 3, hook_uc_cart_item has become several functions hook_uc_cart_item_OPERATION where OPERATION is insert, update, delete and presave. See ubercart/uc_cart/uc_cart.api.php for details.

Rather than patch this module, as a fix to @Hendry Lee #8 (getting this module working with UC 3.0), I put this code in a custom module

function MODULENAME_uc_cart_item_insert($entity) {
  // If this item has a quantity restriction on it...
  if ($entity->data['restrict_qty']['qty'] > 0) {
    $is_lifetime = isset($entity->data['restrict_qty']['lifetime']) && $entity->data['restrict_qty']['lifetime'];
    $restrict_qty = $is_lifetime ? $entity->data['restrict_qty']['rest'] : $entity->data['restrict_qty']['qty'];
    if ($entity->qty > $restrict_qty) {
      // Reduce the quantity to 1 if necessary.
      $entity->qty = $restrict_qty;
      db_query("UPDATE {uc_cart_products} SET qty = :qty, changed = :changed WHERE cart_id = :cart_id AND nid = :nid AND data = :data", 
      array(':qty' => $restrict_qty, ':changed' => time(), ':cart_id' => uc_cart_get_id(), ':nid' => $entity->nid, ':data' => serialize($entity->data)));
      drupal_set_message(format_plural($restrict_qty, 'You may only add 1 !item to your cart. Quantity has been restricted.', 'You may only add @count !item to your cart. Quantity has been restricted.', array('!item' => $entity->title)), 'warning');
    }
  }
}

function MODULENAME_uc_cart_item_update($entity) {
  // If this item has a quantity restriction on it...
  if ($entity->data['restrict_qty']['qty'] > 0) {
    $is_lifetime = isset($entity->data['restrict_qty']['lifetime']) && $entity->data['restrict_qty']['lifetime'];
    $restrict_qty = $is_lifetime ? $entity->data['restrict_qty']['rest'] : $entity->data['restrict_qty']['qty'];
    if ($entity->qty > $restrict_qty) {
      // Reduce the quantity to 1 if necessary.
      $entity->qty = $restrict_qty;
      db_query("UPDATE {uc_cart_products} SET qty = :qty, changed = :changed WHERE cart_id = :cart_id AND nid = :nid AND data = :data", 
      array(':qty' => $restrict_qty, ':changed' => time(), ':cart_id' => uc_cart_get_id(), ':nid' => $entity->nid, ':data' => serialize($entity->data)));
      drupal_set_message(format_plural($restrict_qty, 'You may only add 1 !item to your cart. Quantity has been restricted.', 'You may only add @count !item to your cart. Quantity has been restricted.', array('!item' => $entity->title)), 'warning');
    }
  }
}