How do you enable partial matching with "sunspot for rails"?

ruby-on-rails, sunspot-rails

Solution

If you want return substrings in fulltext search, you can take a look in

https://github.com/sunspot/sunspot/wiki/Matching-substrings-in-fulltext-search

Also you can add a file `sunspot_solr.rb` for pagination of results in myapp/config/initializers/ with:

Sunspot.config.pagination.default_per_page = 100

return 100 results for this case.

Added:

Your `schema.xml` file is founded in `yourappfolder/solr/conf`

Also you can add `<filter class="solr.NGramFilterFactory"/>` to match arbitrary substrings.

This is my particular config for schema.xml:

<fieldType name="text" class="solr.TextField" omitNorms="false">
  <analyzer>
    <tokenizer class="solr.StandardTokenizerFactory"/>
    <filter class="solr.StandardFilterFactory"/>
    <filter class="solr.LowerCaseFilterFactory"/>
  </analyzer>
</fieldType>
<fieldtype class="solr.TextField" name="text_pre" positionIncrementGap="100">
  <analyzer type="index">
    <tokenizer class="solr.WhitespaceTokenizerFactory"/>
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.NGramFilterFactory" minGramSize="2" maxGramSize="10"/>
    <filter class="solr.ISOLatin1AccentFilterFactory"/>
    <filter class="solr.TrimFilterFactory" />
    <filter class="solr.EdgeNGramFilterFactory" minGramSize="2" maxGramSize="10"/>
  </analyzer>
  <analyzer type="query">
    <tokenizer class="solr.WhitespaceTokenizerFactory"/>
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.ISOLatin1AccentFilterFactory"/>
    <filter class="solr.TrimFilterFactory" />
  </analyzer>
</fieldtype>

For me it does works fine with full strings and substrings for all keywords. Please do not forget to restart the server and reindex your models for the changes to take effect.

Regards!

Problem

Original source

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