Hi,
I think the main issue is this sentence in Erik’s blog post: · This implementation can only be used as a filter query (fq) parameter, not a q parameter. So you can only use the postfilter in a fq= parameter, not – as you do – in q=. If you use it in fq it seems that Solr does not execute the query part. Your filter might be executed after you change your query URL, but its still has the problem that it incorrectly assumes the doc id given in the collect method is global and can be used with indexSearcher. The collector works per index segment, so you have to lookup the doc id using the AtomicReaderContext given in setNextReader() [e.g. context.reader().document(docid).get(…)]. See also Eriks code, where he uses the FieldCache, also per segment. Uwe ----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen <http://www.thetaphi.de/> http://www.thetaphi.de eMail: u...@thetaphi.de From: Muhzin [mailto:rmuh...@gmail.com] Sent: Thursday, October 17, 2013 7:21 AM To: dev@lucene.apache.org Subject: Re: solr Post Filter Hi Uwe, Thank you very much for the insight . I was following the article by Erik Hatcher http://searchhub.org/2012/02/22/custom-security-filtering-in-solr/ and this presentation http://www.lucenerevolution.org/sites/default/files/Using%20LuceneSolr%20to%20Build%20Advertising%20Systems.pdf Is there some other way implement the post filter. Can you please point me in a good direction. On Tue, Oct 15, 2013 at 7:58 PM, Uwe Schindler <u...@thetaphi.de> wrote: Hi, ExtendedQueryBase extends the abstract Lucene query class, but you don’t implement any query-specific method. So Solr does not know which query you want to execute? The postfilter alone is no valid query. Also there may be some bugs in your code: - Where does indexSearcher come from? - The collect method uses the atomic docid to query the top-level indexsearcher. It should either use the atomicReaderContext and request the document from there or it should use docBase to transform the docid to be global But this code is not yet executed, I just wanted to mention this. Uwe ----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen <http://www.thetaphi.de/> http://www.thetaphi.de eMail: u...@thetaphi.de From: Muhzin [mailto:rmuh...@gmail.com] Sent: Tuesday, October 15, 2013 4:11 PM To: dev@lucene.apache.org Subject: solr Post Filter Hi, I am developing a post filter implementation in solr 4.2.1 . the following is a gist to my implementation. https://gist.github.com/rmuhzin/6991544 I deployed my plugin in the library folder and updated the solrconfig.xml <queryParser name="lastLoginParser" class="com.m4marry.PostQParserPlugin" /> But when I apply the plugin using http:/localhost/solr/profiles/select?q={!lastLoginParser}*%3A*&wt=xml&indent=true I get the following error java.lang.UnsupportedOperationException: Query {!cache=false cost=100} does not implement createWeight at org.apache.lucene.search.Query.createWeight(Query.java:80) at Full stack trace at : https://gist.github.com/rmuhzin/6992029 Could someone please shed some light into it ?
