fix: quiqqer/stock-management#10

src/QUI/ERP/Order/Controls/Buttons/ProductToBasket.html

@@ -14,6 +14,7 @@
         <input type="number" value="1" min="1" max="{$maxQuantity}"
                class="quiqqer-order-button-add-quantity-input"
                title="{locale group='quiqqer/order' var='control.basket.quantity.text'}"
+               {if !$maxQuantity}disabled{/if}
         />
         {if $showControls}
         <span class="quiqqer-order-button-add-quantity-increase btn"
@@ -24,7 +25,10 @@
 </div>
 {/if}
 
-<button class="add-to-basket {$this->getAttribute('btnClass')}" title="{$addButtonTitle}">
+<button class="add-to-basket {$this->getAttribute('btnClass')}"
+        title="{$addButtonTitle}"
+        {if !$maxQuantity}disabled{/if}
+>
     <label class="add-to-basket-text">
         {$btnText}
     </label>

src/QUI/ERP/Order/Controls/Buttons/ProductToBasket.php

@@ -70,7 +70,7 @@ public function getBody()
             $maxQuantity = $Product->getMaximumQuantity();
 
             if (!$maxQuantity) {
-                $maxQuantity = '';
+                $this->setAttribute('disabled', true);
             }
 
             $this->setAttribute('data-pid', $Product->getId());