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1、ajax 更新购物车数量一、首先我把这个输入框的代码贴出来1. 二、次页面加入的javascript也就是 changeprice 函数1. 2. /*3. * 点选可选属性或改变数量时修改商品价格的函数4. */5. function changePrice(number,rec_id)6. 7. /v/ar attr = getSelectedAttributes(document.formsECS_FORMBUY);8. / var qty =document.formsECS_FORMBUY.elementsnumber.value;9. Ajax.call(flow.php, ste
2、p=update_group_cart&rec_id=+ rec_id +&number= + number, changePriceResponse, GET, JSON);10. 11. /*12. * 接收返回的信息13. */14. function changePriceResponse(res)15. 16. if (res.error 0)17. 18. document.getElementById(sysmsg_error).innerHTML = res.content;19. ;20. 21. else22. 23. if(24. 25. ;26. 27. documen
3、t.getElementById(subtotal_+res.rec_id).innerHTML = res.subtotal;/商品总价28. document.getElementById(cart_amount).innerHTML =res.cart_amount;/购物车团购商品价29. 30. 31. 32. 33. /*34. * 点选可选属性或改变数量时修改商品价格的函数35. */36. function changePrice(number,rec_id)37. 38. /v/ar attr = getSelectedAttributes(document.formsECS
4、_FORMBUY);39. / var qty =document.formsECS_FORMBUY.elementsnumber.value;40. Ajax.call(flow.php, step=update_group_cart&rec_id=+ rec_id +&number= + number, changePriceResponse, GET, JSON);41. 42. /*43. * 接收返回的信息44. */45. function changePriceResponse(res)46. 47. if (res.error 0)48. 49. document.getEle
5、mentById(sysmsg_error).innerHTML = res.content;50. ;51. 52. else53. 54. if(55. 56. ;57. 58. document.getElementById(subtotal_+res.rec_id).innerHTML = res.subtotal;/商品总价59. document.getElementById(cart_amount).innerHTML =res.cart_amount;/购物车团购商品价60. 61. 62. 然后我把请求的php 处理程序也贴出来1. elseif($_REQUESTstep
6、= update_group_cart)2. 3. /*- */4. /-西安 php 服务中心团购更新购物车5. /*- */6. include_once(includes/cls_json.php);7. $json = new JSON();8. $result = array(error = , content = );9. $rec_id = $_GETrec_id;10. $number = $_GETnumber;11. /* 取的团购信息 */12. $group_buy = group_buy_info($_SESSIONextension_id, $number);13.
7、 /* 判断输入是否合法 */14. if(!is_numeric($number)15. 16.$resulterror = 1;17.$resultcontent =请输入合法数量 ;18.die($json-encode($result);19. 20. if ($group_buyrestrict_amount 0 & $number ($group_buyrestrict_amount - $group_buyvalid_goods)21. 22.$resulterror = 1;23. $restrict_amount = $group_buyrestrict_amount - $
8、group_buyvalid_goods;24.$resultcontent= 您最多可买 .$restrict_amount.件;25.die($json-encode($result);26. 27.$sql= UPDATE . $GLOBALSecs-table(cart).SETgoods_number = $number WHERE rec_id = $rec_id;28. $GLOBALSdb-query($sql);29. /* 计算此订单总价 */30. $subtotal = $GLOBALSdb-getONE(select goods_price * goods_numbe
9、r AS subtotal from .$GLOBALSecs-table(cart). where rec_id = $rec_id);31. /* 购物车团购商品总金额 */32. $cart_amount = cart_amount(,$_SESSIONflow_type);33. $resultsubtotal = price_format($subtotal, false);34.$resultcart_amount= price_format($cart_amount,false);35. $resultrec_id = $rec_id;36. die($json-encode($result);
ajax更新购物车数量
