How setup word_middle case-sensitive search with searchkick?

Question

I am trying to setup Searchkick in my Rails application.

I have a model with fields:

• number:string e.g. NK4321nn1234

What I need:

• searching for 1nn1 should find NK4321nn1234
• searching for 1NN1 should NOT find NK4321nn1234

Here is my model:

class Product < ApplicationRecord
    searchkick word_middle: [:number]

  def search_data
    {
      number: number
    }
  end

  def self.sensitive_search query, page
    search( query,
      fields: [{number: :exact}],
      match: :word_middle,
      misspellings: false,
      page: 1,
      per_page: 15
    )
  end

  def self.insensitive_search query, page
    search( query.downcase,
      fields: [:number],
      match: :word_middle,
      misspellings: false,
      page: 1,
      per_page: 15
    )
  end
end

Case-sensitive search does not work. As far as I understand, searchkick downcase all nGrams during indexing... But why?..

Questions:

• did I write search methods correct?
• why sensitive search not working?

My environment: rails 5.2.0, searchkick 3.1.0

Answer 1

As of this commit, you can do:

class Product < ApplicationRecord
  searchkick word_middle: [:number], case_sensitive: true
end

Be sure to reindex after updating Searchkick options.