If you want your indexed value changed, you can use an analyzer (either PatternReplaceFilter or a custom one). If you want the stored value changed, you can use a custom UpdateRequestProcessor. However, taking care of this in your application may be easier than bothering with the two particularly if you have to create your custom plugin.
On Thu, Oct 23, 2008 at 12:08 AM, Aleksey Gogolev <[EMAIL PROTECTED]> wrote: > > JN> It doesn't need to be a copy field, right? Could you create a new > field > JN> "ex", extract value from description, delete digits, and set to "ex" > JN> field before add/index to solr server? > > Yes, I can. I just was wondering can I use solr for this purpose or > not. > > JN> -----Original Message----- > JN> From: Feak, Todd [mailto:[EMAIL PROTECTED] > JN> Sent: Wednesday, October 22, 2008 11:25 Joe > JN> To: solr-user@lucene.apache.org > JN> Subject: RE: Re[4]: Question about copyField > > JN> My bad. I misunderstood what you wanted. > > JN> The example I gave was for the searching side of things. Not the data > JN> representation in the document. > > JN> -Todd > > JN> -----Original Message----- > JN> From: Aleksey Gogolev [mailto:[EMAIL PROTECTED] > JN> Sent: Wednesday, October 22, 2008 11:14 AM > JN> To: Feak, Todd > JN> Subject: Re[4]: Question about copyField > > > > FT>> I would suggest doing this in your schema, then starting up Solr and > FT>> using the analysis admin page to see if it will index and search the > JN> way > FT>> you want. That way you don't have to pay the cost of actually > JN> indexing > FT>> the data to find out. > > JN> Thanks. I did it exactly like you said. > > JN> I created a fieldType "ex" (short for experiment), defined > JN> corresponding <copyFiled> and try it on the analysis page. Here is what > JN> I got (I uploaded the page, so you can see it): > > JN> http://tut-i-tam.com.ua/static/analysis.jsp.htm > > JN> I want the final token "samsung spinpoint p spn hard drive gb ata" to > JN> be the actual "ex" value. So I expect such response: > > JN> <result name="response" numFound="1" start="0"> > JN> <doc> > JN> <str name="ex">samsung spinpoint p spn hard drive gb > JN> ata</str> > JN> <str name="id">SP2514N</str> > JN> <str name="description">Samsung SpinPoint12 P120 SP2514N - > JN> hard drive - 250 GB - ATA-133</str> > JN> </doc> > JN> </result> > > JN> But when I'm searching this doc, I got this: > > JN> <result name="response" numFound="1" start="0"> > JN> <doc> > JN> <str name="ex">Samsung SpinPoint12 P120 SP2514N - hard > JN> drive - 250 GB - ATA-133</str> > JN> <str name="id">SP2514N</str> > JN> <str name="description">Samsung SpinPoint12 P120 SP2514N - > JN> hard drive - 250 GB - ATA-133</str> > JN> </doc> > JN> </result> > > JN> As you can see "description" and "ex" filed are identical. > JN> The result of filter chain wasn't actually stored in the "ex" filed :( > > JN> Anyway, thank you :) > > FT>> -Todd > > FT>> -----Original Message----- > FT>> From: Aleksey Gogolev [mailto:[EMAIL PROTECTED] > FT>> Sent: Wednesday, October 22, 2008 9:24 AM > FT>> To: Feak, Todd > FT>> Subject: Re[2]: Question about copyField > > > FT>> Thanks for reply. I want to make your point more exact, cause I'm > JN> not > FT>> sure that I correctly understood you :) > > FT>> As far as I know (correct me please, if I wrong) type defines the > JN> way > FT>> in which the field is indexed and queried. But I don't want to index > FT>> or query "suggestion" field in different way, I want "suggestion" > JN> field > FT>> store different value (like in example I wrote in first mail). > > FT>> So you are saying that I can tell to slor (using filedType) how solr > FT>> should process string before saving it? Yes? > > FT>>> The filters and tokenizer that are applied to the copy field are > FT>>> determined by it's type in the schema. Simply create a new field > FT>> type in > FT>>> your schema with the filters you would like, and use that type for > FT>> your > FT>>> copy field. So, the field description would have it's old type, but > FT>> the > FT>>> field suggestion would get a new type. > > FT>>> -Todd Feak > > FT>>> -----Original Message----- > FT>>> From: Aleksey Gogolev [mailto:[EMAIL PROTECTED] > FT>>> Sent: Wednesday, October 22, 2008 8:28 AM > FT>>> To: solr-user@lucene.apache.org > FT>>> Subject: Question about copyField > > > FT>>> Hello. > > FT>>> I have field "description" in my schema. And I want make a filed > FT>>> "suggestion" with the same content. So I added following line to my > FT>>> schema.xml: > > FT>>> <copyField source="description" dest="suggestion"/> > > FT>>> But I also want to modify "description" string before copying it to > FT>>> "suggestion" field. I want to remove all comas, dots and slashes. > FT>> Here > FT>>> is an example of such transformation: > > FT>>> "TvPL/st, SAMSUNG, SML200" => "TvPL st SAMSUNG SML200" > > FT>>> And so as result I want to have such doc: > > FT>>> <doc> > FT>>> <field name="id">8asydauf9nbcngfaad</filed> > FT>>> <field name="description">TvPL/st, SAMSUNG, SML200</filed> > FT>>> <field name="description">TvPL st SAMSUNG SML200</filed> > FT>>> </doc> > > FT>>> I think it would be nice to use solr.PatternReplaceFilterFactory > JN> for > FT>>> this purpose. So the question is: Can I use solr filters for > FT>>> processing "description" string before copying it to "suggestion" > FT>>> field? > > FT>>> Thank you for your attention. > > > > > > > > > > > -- > Aleksey Gogolev > developer, > dev.co.ua > Aleksey mailto:[EMAIL PROTECTED] > > -- Regards, Shalin Shekhar Mangar.
