ECSHOP利用ajax更新购物车数量

来源：互联网发布：破解版360企业云盘mac 编辑：程序博客网时间：2024/05/22 02:09

方法一：

1.在flow.dwt中找到

<input type="text" name="goods_number[{$goods.rec_id}]" id="goods_number_{$goods.rec_id}" value="{$goods.goods_number}" size="4" class="inputBg" style="text-align:center " onkeydown="showdiv(this)"/>

修改为

<a href="javascript:;" onclick="chage_num({$goods.rec_id},{$goods.goods_id},'-');">-</a><input type="text" name="goods_number[{$goods.rec_id}]" id="goods_number_{$goods.rec_id}" value="{$goods.goods_number}" size="4" class="inputBg" style="text-align:center;" onblur="change_price({$goods.rec_id},{$goods.goods_id})"/><a href="javascript:;" onclick="chage_num({$goods.rec_id},{$goods.goods_id},'+');">+</a>

将

<td align="right" bgcolor="#ffffff">{$goods.subtotal}</td>

修改为

<td align="right" bgcolor="#ffffff" id="subtotal_{$goods.rec_id}">{$goods.subtotal}</td>

将

{$shopping_money}

修改为

<span id="cart_amount_desc">{$shopping_money}</span>

将

{$market_price_desc}

修改为

<span id="market_amount_desc">{$market_price_desc}</span>

在页面中插入js

<script>function chage_num(rec_id,goods_id,type){    if(type == '+'){        document.getElementById("goods_number_"+rec_id+"").value++;        var number = document.getElementById("goods_number_"+rec_id+"").value;        Ajax.call('flow.php', 'step=update_group_cart&rec_id=' + rec_id +'&number=' + number+'&goods_id=' + goods_id, changePriceResponse, 'GET', 'JSON');    }    if(type == '-'){        if(document.getElementById("goods_number_"+rec_id+"").value < 1){            var number = document.getElementById("goods_number_"+rec_id+"").value;            Ajax.call('flow.php', 'step=update_group_cart&rec_id=' + rec_id +'&number=' + number+'&goods_id=' + goods_id, changePriceResponse, 'GET', 'JSON');        }        else{            document.getElementById("goods_number_"+rec_id+"").value--;            var number = document.getElementById("goods_number_"+rec_id+"").value;            Ajax.call('flow.php', 'step=update_group_cart&rec_id=' + rec_id +'&number=' + number+'&goods_id=' + goods_id, changePriceResponse, 'GET', 'JSON');        }        }    if(number == 0){        document.getElementById("goods_number_"+rec_id+"").value = 1;    }}function changePriceResponse(result){    if(result.error == 1){        alert(result.content);        document.getElementById("goods_number_"+result.rec_id+"").value =result.number;    }    else{        document.getElementById('subtotal_'+result.rec_id).innerHTML = result.subtotal;//商品总价        document.getElementById('cart_amount_desc').innerHTML = result.cart_amount_desc;//购物车商品总价说明          document.getElementById('market_amount_desc').innerHTML = result.market_amount_desc;//购物车商品总市价说明     }}</script>

2.在flow.php中插入

elseif($_REQUEST['step']=='update_group_cart'){    include_once('includes/cls_json.php');    $result = array('error' => 0, 'message' => '', 'content' => '', 'goods_id' => '');    $json  = new JSON;    $rec_id = $_GET['rec_id'];    $number = $_GET['number'];    $goods_id = $_GET['goods_id'];    $result['rec_id'] = $rec_id;    if ($GLOBALS['_CFG']['use_storage'] == 1){        $goods_number = $GLOBALS['db']->getOne("select goods_number from ".$GLOBALS['ecs']->table('goods')." where goods_id='$goods_id'");        if($number>$goods_number){             $result['error'] = '1';             $result['content'] ='对不起,您选择的数量超出库存您最多可购买'.$goods_number."件";             $result['number']=$goods_number;             die($json->encode($result));        }        elseif ($number<1){            $result['error'] = '1';            $result['content'] ='请最少购买1件';            $result['number']='1';            die($json->encode($result));        }    }    $sql = "UPDATE " . $GLOBALS['ecs']->table('cart') . " SET goods_number = '$number' WHERE rec_id = $rec_id";    $GLOBALS['db']->query($sql);    /* 取得商品列表，计算合计 */      $cart_goods = get_cart_goods();      $subtotal = $GLOBALS['db']->getONE("select goods_price * goods_number AS subtotal from ".$GLOBALS['ecs']->table('cart')." where rec_id = $rec_id");      $result['subtotal'] = price_format($subtotal, false);      $result['cart_amount_desc'] = sprintf($_LANG['shopping_money'], $cart_goods['total']['goods_price']);      $result['market_amount_desc'] = sprintf($_LANG['than_market_price'], $cart_goods['total']['market_price'], $cart_goods['total']['saving'], $cart_goods['total']['save_rate']);      die($json->encode($result));  }

本文根据php分享网：http://www.xaphp.com/forum.php?mod=viewthread&tid=1142&extra=page%3D1中的方法修改而成，原视频中的方法有少许问题，均已修正。

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