需求:每个平台分类下的门店,每个门店的名称、图片路径、评分,每个门店下的四个产品的名称、图片路径、评分
思路:
一开始门店动态化好写,用Ajax就行了。但是每个门店下面的产品,每个去请求一次查询有点不太现实。
一开始准备用每个门店的Id去发起请求,被自己蠢哭了。
在换个思路用sql语句吧
同时把这么多数据一把查出来。
就是把这两张表拼成一张表,把数据作为一行数据在用符号分割,前台在取出来。
WITH td
AS ( SELECT Hishop_Stores.StoreId ,
Hishop_Stores.StoreName ,
Hishop_Products.FirstraceScore ,
Hishop_Products.StoreId AS id ,
Hishop_Products.ProductName ,
Hishop_Products.ImageUrl1
FROM ( SELECT StoreId ,
StoreName ,
StoreImages,
FirstraceScore
FROM Hishop_Stores
) AS Hishop_Stores
LEFT JOIN ( SELECT StoreId ,
ProductName ,
FirstraceScore ,
ImageUrl1
FROM Hishop_Products
WHERE ProductName IS NOT NULL
) AS Hishop_Products ON Hishop_Stores.StoreId = Hishop_Products.StoreId
)
SELECT B.StoreId ,
B.StoreName ,
B.FirstraceScore ,
B.StoreImages,
( SELECT CONVERT(VARCHAR(100), td.ProductName) + '|'
+ CONVERT(VARCHAR(100), ISNULL(td.FirstraceScore, 0))
+ '|' + CONVERT(VARCHAR(100), ISNULL(td.ImageUrl1, '无'))
+ '='
FROM td
WHERE td.StoreId = B.StoreId
ORDER BY td.FirstraceScore DESC
FOR
XML PATH('')
) AS ProductList
FROM Hishop_Stores B
where ShopTypeId=10
GROUP BY StoreId ,
StoreName ,
StoreImages,
B.FirstraceScore;
--ORDER BY B.FirstraceScore DESC;
结果:
OK
其中用到了CONVERT来转换格式,FOR XML PATH('')来实现行转列。
最后Ajax
$(function () {
var shopTypeId = getParam('shopTypeId');
$.ajax({
type: "post", url: "/API/StoreProductAJAX.ashx", data: { action: 'storelist',shopTypeId:shopTypeId },
async: false,
success: function (data)
{ for (var i = 0; i < data.length; i++)
{
var msg = data[i];
var score = msg.FirstraceScore;
var name = msg.StoreName;
var list = msg.ProductList; var strs = new Array(); //定义一数组
var strsnew = new Array(); //定义一数组
var strlist = new Array();
strs=list.split("="); //字符分割
for (ii = 0; ii < strs.length; ii++)
{
strsnew = strs[ii].split("|"); //字符分割
for (j = 0; j < strsnew.length; j++)
{
strlist.push(strsnew[j]); }
//document.write(strs[i] + "<br/>"); //分割后的字符输出
}
//document.write( strlist+ "<br/>"); //分割后的字符输出
//alert(strsnew);
//if (name == "")
//{
// continue;
//} if (score == 0)
{
if (strlist[0] == "")
{
$("#store").append($(' <div class="list-lump border-t" id="' + msg.StoreId + '"><dl class="border-b"><dt><em><img src="'+msg.StoreImages+'" onerror="this.src=\'/Storage/master/depot/img-1.jpg\'"></em></dt><dd><span class="list-n1">' + msg.StoreName + '</span><a href="/vShop/StoreProductList?storeId=' + msg.StoreId + '">进店逛逛</a></dd></dl><ul class="clearfix border-b" id="product"> </li></ul></div>'));
continue;
}
。。。。
这边感觉自己写的有点蠢 不知道怎么去分割输出比较好