//添加关注
public bool addToFollowShop(string buyerid, string shopid)
{
FollowShop followShop = _context.FollowShops.Where(x => x.BuyerId == buyerid && x.ShopId == shopid).FirstOrDefault();
if (followShop == null)
{
followShop = new FollowShop {
BuyerId = buyerid, ShopId = shopid, DateCreated = DateTime.Now
};
_context.FollowShops.Add(followShop);
if (_context.SaveChanges() > 0)
{
return(true);
}
else
{
return(false);
}
}
else // 已存在，不许添加
{
return(true);
}
}
// 取消关注
public bool removeFollowShop(string buyerid, string shopid)
{
FollowShop followShop = _context.FollowShops.Where(x => x.BuyerId == buyerid && x.ShopId == shopid).FirstOrDefault();
if (followShop != null)
{
_context.FollowShops.Remove(followShop);
if (_context.SaveChanges() > 0)
{
return(true);
}
else
{
return(false);
}
}
else
{
return(true);
}
}