Issues with solr.paginate

[moritz]

I'm trying to use paginate call with the rsolr prerelease gem (gem
install rsolr -pre):

solr.paginate 1, 10, 'select', :params => {:q => '*:*'}

throws an exception

{:uri=>#<URI::HTTP:0x2eceb0c URL:http://localhost:8983/solr/select?
wt=ruby&start=0&rows=10>, :query=>"wt=ruby&start=0&rows=10", :path=>"select", :per_page=>10, :method=>:get, :page=>1, :params=>{:wt=>:ruby, :start=>0, :rows=>10}}
RSolr::Error::Http: RSolr::Error::Http - 500 Internal Server Error
Error: null

java.lang.NullPointerException
at java.io.StringReader.<init>(StringReader.java:33)
at org.apache.lucene.queryParser.QueryParser.parse(QueryParser.java:
197)
at
org.apache.solr.search.LuceneQParser.parse(LuceneQParserPlugin.java:
78)
at org.apache.solr.search.QParser.getQuery(QParser.java:131)
at
org.apache.solr.handler.component.QueryComponent.prepare(QueryComponent.java:
89)
at
org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:
174)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:
131)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:1316)

Query: select?wt=ruby&start=0&rows=10

Backtrace: /Library/Ruby/Gems/1.8/gems/rsolr-1.0.0.beta5/lib/rsolr/
client.rb:207:in `adapt_response'
/Library/Ruby/Gems/1.8/gems/rsolr-1.0.0.beta5/lib/rsolr/client.rb:
150:in `execute'
/Library/Ruby/Gems/1.8/gems/rsolr-1.0.0.beta5/lib/rsolr/pagination.rb:
22:in `paginate'
(irb):16:in `irb_binding'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/
1.8/irb/workspace.rb:52:in `irb_binding'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/
1.8/irb/workspace.rb:52
from /Library/Ruby/Gems/1.8/gems/rsolr-1.0.0.beta5/lib/rsolr/
client.rb:207:in `adapt_response'
from /Library/Ruby/Gems/1.8/gems/rsolr-1.0.0.beta5/lib/rsolr/
client.rb:150:in `execute'
from /Library/Ruby/Gems/1.8/gems/rsolr-1.0.0.beta5/lib/rsolr/
pagination.rb:22:in `paginate'
from (irb):16

It appears that the query parameter is missing.

solr.get 'select', :params => {:q=>'*:*',:start=>0,:rows=>10} works
fine.

What can I do to make this work?

[matt mitchell]

Hi Moritz,

This bug should be gone in 1.0.0. Try updating your rsolr gem and let
me know what happens.

Matt

[moritz]

Switching to 1.0.0 fixed it.

Following the instructions on github, I didn't even realize that the
rsolr 1.0.0 was available. The installation instructions should
probably be updated to

sudo gem install rsolr

Thanks for your quick response.