我正在尝试将这些过滤器添加到已经合理的复杂Umbraco Examine查询中,并且已经看到您无法将API与原始lucene查询混合,因此整个过程可能必须以原始方式完成,我将我试图避免,因为它的查询构建器有很多维度。
API可以做到这一点吗?我看到GroupedOr/And
,但我不知道它是如何削减它的,因为它们是独占/包含sql" In"类型查询。
AND ((_nodeTypAlias: 'Event' AND eventDate:(0xx TO 0xx)) OR (NOT _nodeTypAlias: 'Event'))
AND ((_nodeTypAlias: 'Article' AND postDate:(0xx TO 0xx)) OR (NOT _nodeTypAlias: 'Article'))
答案 0 :(得分:1)
使用最优秀的Lucence query builder API
实现了它 var q = new QueryBuilder()
.Must
.MatchSubQuery(and => and
.Should
.MatchSubQuery(qq => qq
.Must
.MatchTerm("__NodeTypAlias", "Event")
.MatchRange(
"comparableEventDate",
DateTime.Now.ToString("yyyyMMddHHmm00000"),
DateTime.Now.AddYears(100).ToString("yyyyMMddHHmm00000"))
.MatchSubQuery(qq => qq
.MustNot
.MatchTerm("__NodeTypAlias", "Event"))
)
.Query
.ToString();
输出:
+((+ __ NodeTypAlias:Event + eventDate:[42920 TO 79444])( - _ NodeTypAlias:Event))
并将其传递给Umbraco检查:
ISearchCriteria criteria = searcher.CreateSearchCriteria();
var filter = criteria.RawQuery(q);
var results = searcher.Search(filter, MaxResults);
Should
运算符转换为" OR"而Must
则转换为AND(Lucene命名法)。
作为参考,您还需要在收集节点数据时将新的可比较日期字段写入索引:
private void ExamineEvents_GatheringNodeData(object sender, IndexingNodeDataEventArgs e, UmbracoHelper umbraco)
{
if (e.IndexType != IndexTypes.Content) return;
try
{
var content = new Node(e.NodeId);
if (e.Fields.ContainsKey("postDate"))
e.Fields.Add("comparablePostDate", DateTime.Parse(e.Fields["postDate"]).ToString("yyyyMMddHHmm00000"));
if (e.Fields.ContainsKey("eventDate"))
e.Fields.Add("comparableEventDate", DateTime.Parse(e.Fields["eventDate"]).ToString("yyyyMMddHHmm00000"));
AddAuthor(e.Fields, content);
}
catch (Exception ex)
{
LogHelper.Error(this.GetType(), "Error in Umbers custom ExamineEvents_GatheringNodeData: ", ex);
//does nowt!
throw;
}
}