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I am writing a custom text field type for my SKU products.

If I have an SKU, for example ABC-DEF123G/5(just an example), I want users to be able to search with or without punctuation. In many cases, only part of the SKU is important, for example. ABC-DEF123in my example.

So far I have schema.xml:

<fieldType name="sku" class="solr.TextField" omitNorms="false">
    <analyzer>
        <tokenizer class="solr.KeywordTokenizerFactory"/>
        <filter class="solr.LowerCaseFilterFactory"/>
        <filter class="solr.WordDelimiterFilterFactory"
            splitOnCaseChange="0"
            splitOnNumerics="0"
            stemEnglishPossessive="0"
            catenateAll="1"
        />
        <filter class="solr.EdgeNGramFilterFactory" minGramSize="3" maxGramSize="15"/>
    </analyzer>
</fieldType>

<!-- For use in Sunspot: -->
<dynamicField name="*_sku" stored="false" type="sku" multiValued="true" indexed="true"/>

This works well in that I can search for SKU parts, for example. DEF123and get the corresponding result (thanks to the ngram filter). However, a search without punctuation delimiters does not return any matches: ABC-DEF123G/5excellent, but ABCDEF123G5not.

When I do an analysis of my schema, I see that the search ABCDEF123G5highlighted matches, but when I run a real query, the results do not return.

Solr . .

SKU ?

(aitchnyu) :

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+3
2

, , :

<fieldType name="sku" class="solr.TextField" omitNorms="false">
    <analyzer>
        <tokenizer class="solr.WhitespaceTokenizerFactory"/>
        <filter class="solr.WordDelimiterFilterFactory" generateWordParts="0" generateNumberParts="0" catenateWords="1" catenateNumbers="1" catenateAll="0"/>
        <filter class="solr.LowerCaseFilterFactory"/>
        <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
        <filter class="solr.NGramFilterFactory" minGramSize="3" maxGramSize="15"/>
    </analyzer>
</fieldType>

schema.xml , .

Edit:

n- n-.

<filter class="solr.EdgeNGramFilterFactory" minGramSize="2" maxGramSize="15"/>

+4

copyField , . sku sku_stripped.

sku, , sku_stripped PatternReplaceFilterFactory:

<fieldType name="sku_stripped" class="solr.TextField" omitNorms="false">
    <analyzer>
        <filter class="solr.PatternReplaceFilterFactory"
             pattern="[^A-Za-z0-9]"
             replacement=""
             replace="all"/>
        <!-- same as above ... -->
    </analyzer>
</fieldType>

copyField:

<fields>
    <!-- ... -->
    <field name="stripped_sku_field" type="sku_stripped" 
        indexed="true" stored="false" multiValued="true" omitNorms="true"/>
    <!-- ... -->
</fields>
<copyField source="*_sku" dest="stripped_sku_field"/>
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