Solr Suggester - dynamic or passed at runtime field - solr

Question

Is it possible to have dynamic field or pass field for suggestions at runtime (in query for example) for SuggestComponent?
Depending on user's language I would like to suggest him different things. I have dynamic field name_* that has concrete fields: name_pl, name_de and name_en (can be more, I want to have flexibility here) and I would like to search for suggestions depending on language: for pl I want to get suggestions in name_pl, for en in name_en and so on.
So far I have standard Suggester with field specified:
<searchComponent name="suggest" class="solr.SuggestComponent">
<lst name="suggester">
<str name="name">mySuggester</str>
<str name="lookupImpl">FuzzyLookupFactory</str>
<str name="dictionaryImpl">HighFrequencyDictionaryFactory</str>
<str name="">name_pl</str>
<str name="suggestAnalyzerFieldType">string</str>
<str name="buildOnStartup">false</str>
</lst>
</searchComponent>
<requestHandler name="/suggest" class="solr.SearchHandler"
startup="lazy" >
<lst name="defaults">
<str name="suggest">true</str>
<str name="suggest.count">10</str>
</lst>
<arr name="components">
<str>suggest</str>
</arr>
</requestHandler>
But actually I need either to use name_* or preferably at runtime to pass the field name for example: http://localhost:8983/solr/services/suggest?suggest=true&suggest.build=true&suggest.dictionary=mySuggester&suggest.q=name&suggest.field=name_pl
How would you implement such mechanism?

Answer 1

It is not the answer you may expect but I started a comment and I ended up with this.
By using a dynamic field here you would have to rebuild the suggester at each query, I suggest ;) you require a specific suggestComponent' dictionary on query.
The value for field should remain static because it is parsed once to build a dictionary index from that field. Or you would have to delete/rebuild that index each time a suggest query requires a dictionary other than the one previously built.
Instead you should replicate the suggester definition for each language you may have so that Solr can build one dictionary index per field/language (just name the suggesters according to the target field language) :
<searchComponent name="suggest" class="solr.SuggestComponent">
<lst name="suggester">
<str name="name">suggest_nl</str>
<str name="lookupImpl">FuzzyLookupFactory</str>
<str name="dictionaryImpl">HighFrequencyDictionaryFactory</str>
<str name="field">name_pl</str>
<str name="suggestAnalyzerFieldType">string</str>
<str name="buildOnStartup">false</str>
</lst>
<lst name="suggester">
<str name="name">suggest_en</str>
<str name="lookupImpl">FuzzyLookupFactory</str>
<str name="dictionaryImpl">HighFrequencyDictionaryFactory</str>
<str name="field">name_en</str>
<str name="suggestAnalyzerFieldType">string</str>
<str name="buildOnStartup">false</str>
</lst>
<!-- etc. -->
</searchComponent>
Now you can query the target dictionary dynamically :
.../suggest?suggest=true&suggest.q=name&suggest.dictionary=suggest_nl

Answer 2

There is an easy way to do this, not sure if you are aware of it:
you create one dictionary per language: suggester_pl, suggester_en...each using the right field. They are all defined inside a single SuggestComponent
when calling, you select which one to hit with &suggest.dictionary=suggester_en
check the docs here