不允许同一产品超过一次性CodeIgniter购物车

时间:2019-01-03 13:51:14

标签: php jquery html5 codeigniter-3 shopping-cart

我正在使用CodeIgniter购物车,下面的代码在浏览器中显示了我的所有详细信息。

(只需共享逻辑部分)

<?php
   foreach ($post as $row) {?>
  <tr>
    <td><?php echo $i++;?></td>
    <td><?php echo $row->name;?></td>
    <td><?php echo $row->price;?></td>
    <td>
      <?php if($row->is_approved==1){?><button type="button" name="renew" class="btn btn-success add_cart">Add to cart</button>
      <?php }else{?>
      <div class="activity_status">Not Approved</div>
      <?php };?>
    </td>
  </tr>

  <div id="primarycart_details"></div>
  <?php}?>

我正在浏览器上得到输出

    Id | Name   | price  | Action
    1  | poimjh | 10     | Add to cart
    2  | asdasd | 100    | Add to cart
    3  | dgfdfw | 50     | Add to cart
    4  | qwewqe | 100    | Not Approved
   // and so on

现在,我的问题是,当我单击“添加到购物车”时,它会在购物车中添加产品详细信息,而且我还将按钮状态从Add to cart更改为Remove。现在,当我刷新页面时,我的按钮再次从Remove变为Add to cart。我不想多次添加同一产品。

Ajax

    $(document).ready(function(){
  $(document).on('click', '.add_cart', function() {
  var product_name = $(this).closest('tr').find('.productname').text();
  var product_id = $(this).closest('tr').find('.productid').val();
  var product_price = $(this).closest('tr').find('.calActivitylPrice').text();
      var quantity =1;
       $.ajax({
        url:"<?php echo base_url(); ?>Member_controller/addToCart",
        method:"POST",
        data:{product_id:product_id, product_name:product_name, product_price:product_price,quantity:quantity},
        success:function(data)
        {
            var obj = JSON.parse(data);
          //alert(data);
         $('#changeToRemove').html('<button type="button" name="remove" class="btn btn-danger btn-xs remove_inventory" id="'+obj.removebtn+'">Remove</button>')
         $('#primarycart_details').html(obj.subtotal);
        }
       });
     });
    });

删除代码

$(document).on('click', '.remove_inventory', function(){
  var row_id = $(this).attr("id");
  //alert(row_id);
  if(confirm("Are you sure you want to remove this?"))
  {
   $.ajax({
    url:"<?php echo base_url(); ?>Member_controller/Removecart",
    method:"POST",
    data:{row_id:row_id},
    success:function(data)
    {
     alert("Product removed from Cart");
    }
   });
  }
  else
  {
   return false;
  }
 });

从控制器中的购物车中删除

public function Removecart(){
 $row_id = $_POST["row_id"];
 //echo $row_id;
  $data = array(
   'rowid'  => $row_id,
   'qty'  => 0
  );
  //print_r($data);
  $this->cart->update($data);
  echo $this->viewCart();

}

添加到控制器中的购物车代码

public function addToCart(){
  $data = array(
   "id"  => $_POST["product_id"],
   "name"  => $_POST["product_name"],
    "qty"  => $_POST["quantity"],
   "price"  => $_POST["product_price"]
  );
  //print_r($data);
  $this->cart->insert($data); //return rowid 
  //echo $this->viewCart();
}

有人可以帮我解决这个问题吗?

1 个答案:

答案 0 :(得分:1)

您可以在产品循环中设置条件,如下所示:

<?php
foreach ($post as $row) {?>
<tr>
    <td><?php echo $i++;?></td>
    <td><?php echo $row->name;?></td>
    <td><?php echo $row->price;?></td>
    <td>
    <?php if($row->is_approved==1){
        if (in_array($row->id, array_column($this->cart->contents(), 'id'))) {
            $rowid = 0;
            foreach ($this->cart->contents() as $product) {if ($product['id'] === $row->id) { $rowid = $product['rowid']; break;}}
            ?>
        <button type="button" name="remove" class="btn btn-danger btn-xs remove_inventory" id="<?php echo $rowid; ?>">Remove</button>
        <?php } else { ?>
        <button type="button" name="renew" class="btn btn-success add_cart" data-productname="<?php echo $row->name; ?>" data-price="<?php echo $row->price;?>" data-productid="<?php echo $row->name_id; ?>" />Add to cart</button>
        <?php } ?>
    <?php }else{?>
    <div class="activity_status">Not Approved</div>
    <?php };?>
    </td>
</tr>

<div id="primarycart_details"></div>
<?php
}

首先使用array_column($this->cart->contents(), 'id')获取产品ID的数组列表,然后在其上应用in_array()以检查当前购物车项目是否存在于产品列表中。

此行:foreach ($this->cart->contents() as $product) {if ($product['id'] === $row->id) { $rowid = $product['rowid']; break;}}用于在每种产品上查询rowid的值。