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【优化】优化推荐商品的计算规则，使每次推荐商品的数据进行随机处理，展示不同推荐商品。

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jianweie code
2023-05-06 22:57:03 +08:00
parent a0a8027397
commit 21dc65b5ef
1 changed files with 96 additions and 74 deletions
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30
CoreCms.Net.Repository/Good/CoreCmsGoodsRepository.cs
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@@ -900,11 +900,27 @@ namespace CoreCms.Net.Repository
var list = new List<GoodListDTO>(); var list = new List<GoodListDTO>();
if (isRecommend) if (isRecommend)
{
var ids = await DbClient.Queryable<CoreCmsGoods>().Where(p => p.isDel == false && p.isMarketable == true && p.isRecommend == true)
.Select(p => p.id).ToArrayAsync();
var dbIds = new List<int>();
if (!ids.Any()) return list;
{
for (int i = 0; i < number; i++)
{
var id = GetRandomNumber(ids);
while (dbIds.Contains(id))//判断集合中有没有生成的随机数，如果有，则重新生成一个随机数，直到生成的随机数list集合中没有才退出循环
{
id = GetRandomNumber(ids);
}
dbIds.Add(id);
}
if (dbIds.Any())
{ {
list = await DbClient.Queryable<CoreCmsGoods, CoreCmsProducts>((good, pd) => new JoinQueryInfos( list = await DbClient.Queryable<CoreCmsGoods, CoreCmsProducts>((good, pd) => new JoinQueryInfos(
JoinType.Left, good.id == pd.goodsId)) JoinType.Left, good.id == pd.goodsId))
.Where((good, pd) => pd.isDefalut == true && pd.isDel == false && good.isRecommend == true && good.isDel == false && good.isMarketable == true) .Where((good, pd) => pd.isDefalut == true && pd.isDel == false && good.isRecommend == true && good.isDel == false && good.isMarketable == true)
.Select((good, pd) => new GoodListDTO() .Select((good, pd) => new GoodListDTO
{ {
id = good.id, id = good.id,
name = good.name, name = good.name,
@@ -936,19 +952,25 @@ namespace CoreCms.Net.Repository
initialSales = good.initialSales, initialSales = good.initialSales,
}) })
.MergeTable() .MergeTable()
.OrderBy(p => p.createTime, OrderByType.Desc) .Where(p => dbIds.Contains(p.id)).ToListAsync();
.ToListAsync(); }
}
} }
else else
{ {
var ids = await DbClient.Queryable<CoreCmsGoods>().Where(p => p.isDel == false && p.isMarketable == true) var ids = await DbClient.Queryable<CoreCmsGoods>().Where(p => p.isDel == false && p.isMarketable == true)
.Select(p => p.id).ToArrayAsync(); .Select(p => p.id).ToArrayAsync();
var dbIds = new List<int>(); var dbIds = new List<int>();
if (ids.Any()) if (!ids.Any()) return list;
{ {
for (int i = 0; i < number; i++) for (int i = 0; i < number; i++)
{ {
var id = GetRandomNumber(ids); var id = GetRandomNumber(ids);
while (dbIds.Contains(id))//判断集合中有没有生成的随机数，如果有，则重新生成一个随机数，直到生成的随机数list集合中没有才退出循环
{
id = GetRandomNumber(ids);
}
dbIds.Add(id); dbIds.Add(id);
} }
if (dbIds.Any()) if (dbIds.Any())