//fixed by wanf
/// <summary>
/// 专题分页搜索
/// </summary>
/// <param name="groupQuery">搜索条件</param>
/// <param name="interestTopic">是否是查询可能感兴趣的专题</param>
/// <returns>符合搜索条件的分页集合</returns>
public PagingDataSet <TopicEntity> Search(TopicFullTextQuery groupQuery, bool interestTopic = false)
{
if (!interestTopic)
{
if (string.IsNullOrWhiteSpace(groupQuery.Keyword) && !groupQuery.KeywordIsNull)
{
return(new PagingDataSet <TopicEntity>(new List <TopicEntity>()));
}
}
LuceneSearchBuilder searchBuilder = BuildLuceneSearchBuilder(groupQuery, interestTopic);
//使用LuceneSearchBuilder构建Lucene需要Query、Filter、Sort
Query query = null;
Filter filter = null;
Sort sort = null;
searchBuilder.BuildQuery(out query, out filter, out sort);
//调用SearchService.Search(),执行搜索
PagingDataSet <Document> searchResult = searchEngine.Search(query, filter, sort, groupQuery.PageIndex, groupQuery.PageSize);
IEnumerable <Document> docs = searchResult.ToList <Document>();
//解析出搜索结果中的专题ID
List <long> groupIds = new List <long>();
//获取索引中专题的标签
Dictionary <long, IEnumerable <string> > groupTags = new Dictionary <long, IEnumerable <string> >();
//获取索引中专题的分类名
Dictionary <long, string> categoryNames = new Dictionary <long, string>();
foreach (Document doc in docs)
{
long groupId = long.Parse(doc.Get(TopicIndexDocument.TopicId));
groupIds.Add(groupId);
groupTags[groupId] = doc.GetValues(TopicIndexDocument.Tag).ToList <string>();
categoryNames[groupId] = doc.Get(TopicIndexDocument.CategoryName);
}
//根据专题ID列表批量查询专题实例
IEnumerable <TopicEntity> groupList = topicService.GetTopicEntitiesByIds(groupIds);
foreach (var group in groupList)
{
if (groupTags.ContainsKey(group.TopicId))
{
group.TagNames = groupTags[group.TopicId];
}
if (categoryNames.ContainsKey(group.TopicId))
{
group.CategoryName = categoryNames[group.TopicId];
}
}
//组装分页对象
PagingDataSet <TopicEntity> TopicEntitys = new PagingDataSet <TopicEntity>(groupList)
{
TotalRecords = searchResult.TotalRecords,
PageSize = searchResult.PageSize,
PageIndex = searchResult.PageIndex,
QueryDuration = searchResult.QueryDuration
};
return(TopicEntitys);
}
