protected Dictionary <int, int> ChooseBestPairs()
{
CanonDataContext db = Cdb.Instance;
Dictionary <int, int> result = new Dictionary <int, int>(500);
var bestMap = db.GetBestRelevanceForMapping(this._channelId).OrderByDescending(p => p.RelevancePercent);
List <GetBestRelevanceForMappingResult> list = bestMap.ToList();
var grouped = db.GetBestRelevanceForMapping(this._channelId).GroupBy(g => g.ProductId);
List <int> groupedList = new List <int>(100);
List <MappingRule> currentRules = db.MappingRules.Where(c => c.ChannelId == this._channelId).ToList();
foreach (var pc in grouped)
{
if (pc.Count() == 1)
{
groupedList.Add(pc.Key);
}
}
//first add items which have one2one pair
foreach (GetBestRelevanceForMappingResult mr in list)
{
if (!groupedList.Contains(mr.ProductId))
{
continue;
}
if (result.ContainsValue(mr.ChannelMonitorId))
{
continue;
}
if (this.IsForbiddenToRecommend(currentRules, mr.ProductId, mr.ChannelMonitorId))
{
continue;
}
result.Add(mr.ProductId, mr.ChannelMonitorId);
}
//now add the rest
foreach (GetBestRelevanceForMappingResult mr in list)
{
if (result.ContainsKey(mr.ProductId))
{
continue;
}
if (result.ContainsValue(mr.ChannelMonitorId))
{
continue;
}
if (this.IsForbiddenToRecommend(currentRules, mr.ProductId, mr.ChannelMonitorId))
{
continue;
}
result.Add(mr.ProductId, mr.ChannelMonitorId);
}
return(result);
}