我目前正在修改开源 PHP POS，我想修改代码而不是显示警告并显示 0 库存项目以在数量为 0 时不显示结果。
我设法将消息从普通消息更改为 javascript 弹出窗口，但我仍然喜欢不显示该项目。因为我使用这个系统的员工总是忽略弹出窗口，当月底它显示了相当多的负面项目，让我检查和更改感到头疼。因此，我在这里寻求专业帮助来为我提供建议和帮助。我看起来高高在上，并设法得到一堆我相信它可能就是那个的代码。如果我错了，请纠正我。
编码：
function add_item($item_id,$quantity=1,$discount=0,$price=null,$description=null,$serialnumber=null)
{
//make sure item exists
if(!$this->CI->Item->exists($item_id))
{
//try to get item id given an item_number
$item_id = $this->CI->Item->get_item_id($item_id);
if(!$item_id)
return false;
}
//Alain Serialization and Description
//Get all items in the cart so far...
$items = $this->get_cart();
//We need to loop through all items in the cart.
//If the item is already there, get it's key($updatekey).
//We also need to get the next key that we are going to use in case we need to add the
//item to the cart. Since items can be deleted, we can't use a count. we use the highest key + 1.
$maxkey=0; //Highest key so far
$itemalreadyinsale=FALSE; //We did not find the item yet.
$insertkey=0; //Key to use for new entry.
$updatekey=0; //Key to use to update(quantity)
foreach ($items as $item)
{
//We primed the loop so maxkey is 0 the first time.
//Also, we have stored the key in the element itself so we can compare.
if($maxkey <= $item['line'])
{
$maxkey = $item['line'];
}
if($item['item_id']==$item_id)
{
$itemalreadyinsale=TRUE;
$updatekey=$item['line'];
}
}
$insertkey=$maxkey+1;
//array/cart records are identified by $insertkey and item_id is just another field.
$item = array(($insertkey)=>
array(
'item_id'=>$item_id,
'line'=>$insertkey,
'name'=>$this->CI->Item->get_info($item_id)->name,
'item_number'=>$this->CI->Item->get_info($item_id)->item_number,
'description'=>$description!=null ? $description: $this->CI->Item->get_info($item_id)->description,
'serialnumber'=>$serialnumber!=null ? $serialnumber: '',
'allow_alt_description'=>$this->CI->Item->get_info($item_id)->allow_alt_description,
'is_serialized'=>$this->CI->Item->get_info($item_id)->is_serialized,
'quantity'=>$quantity,
'discount'=>$discount,
'price'=>$price!=null ? $price: $this->CI->Item->get_info($item_id)->unit_price
)
);
//Item already exists and is not serialized, add to quantity
if($itemalreadyinsale && ($this->CI->Item->get_info($item_id)->is_serialized ==0) )
{
$items[$updatekey]['quantity']+=$quantity;
}
else
{
//add to existing array
$items+=$item;
}
$this->set_cart($items);
return true;
}
function out_of_stock($item_id)
{
//make sure item exists
if(!$this->CI->Item->exists($item_id))
{
//try to get item id given an item_number
$item_id = $this->CI->Item->get_item_id($item_id);
if(!$item_id)
return false;
}
$item = $this->CI->Item->get_info($item_id);
$quanity_added = $this->get_quantity_already_added($item_id);
if ($item->quantity - $quanity_added < 0)
{
return true;
}
return false;
}
先感谢您！杰夫