Class: RailsPanda::Search::Strategies::Ngram::NgramEntry

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
lib/rails_panda_search/strategies/ngram/ngram_entry.rb

Overview

Schema Information

Table name: rails_panda_search_ngram_entries

id :integer not null, primary key ngram :string not null source_type :string not null source_column :string not null source_id :string not null created_at :datetime not null updated_at :datetime not null

Indexes

idx_rails_panda_search_ngram_entries_on_ngram_and_source_type (ngram,source_type)

Class Method Summary collapse

Class Method Details

.matching_source_ids(ngrams, source_type: nil, columns: nil) ⇒ Array<Hash>

Returns source_id hashes that match ALL given n-grams. Optionally scoped by source_type and/or columns.

Parameters:

  • ngrams (Array<String>) —

    n-grams to match

  • source_type (String, nil) (defaults to: nil) —

    model name to scope to (nil = global)

  • columns (Array<Symbol>, nil) (defaults to: nil) —

    columns to scope to (nil = all)

Returns:

  • (Array<Hash>) —

    matching source_id JSONB hashes



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# File 'lib/rails_panda_search/strategies/ngram/ngram_entry.rb', line 40

def self.matching_source_ids(ngrams, source_type: nil, columns: nil)
  return [] if ngrams.empty?

  where(ngram: ngrams)
    .then do |scope|
      if source_type
        scope.for_source_type(source_type)
      else
        scope
      end
    end
    .then do |scope|
      if columns
        scope.where(source_column: Array(columns).map(&:to_s))
      else
        scope
      end
    end
    .group(:source_type, :source_id)
    .having("COUNT(DISTINCT ngram) = ?", ngrams.length)
    .pluck(:source_type, :source_id)
    .map { |type, id_json| [type, JSON.parse(id_json)] }
end

.table_name ⇒ Object

Always read from config at call time, so initializers and late config changes are respected.



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# File 'lib/rails_panda_search/strategies/ngram/ngram_entry.rb', line 25

def self.table_name
  RailsPanda::Search.config.ngram_entries_table_name
end