Module: MeiliSearch::Rails::ClassMethods

Defined in:
lib/meilisearch-rails.rb

Overview

these are the class methods added when MeiliSearch is included

Defined Under Namespace

Modules: AdditionalMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.extended(base) ⇒ Object 



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# File 'lib/meilisearch-rails.rb', line 326

def self.extended(base)
  class << base
    alias_method :without_auto_index, :ms_without_auto_index unless method_defined? :without_auto_index
    alias_method :reindex!, :ms_reindex! unless method_defined? :reindex!
    alias_method :index_documents, :ms_index_documents unless method_defined? :index_documents
    alias_method :index!, :ms_index! unless method_defined? :index!
    alias_method :remove_from_index!, :ms_remove_from_index! unless method_defined? :remove_from_index!
    alias_method :clear_index!, :ms_clear_index! unless method_defined? :clear_index!
    alias_method :search, :ms_search unless method_defined? :search
    alias_method :raw_search, :ms_raw_search unless method_defined? :raw_search
    alias_method :index, :ms_index unless method_defined? :index
    alias_method :index_uid, :ms_index_uid unless method_defined? :index_uid
    alias_method :must_reindex?, :ms_must_reindex? unless method_defined? :must_reindex?
  end

  base.cattr_accessor :meilisearch_options, :meilisearch_settings
end

Instance Method Details

#meilisearch(options = {}, &block) ⇒ Object 



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# File 'lib/meilisearch-rails.rb', line 344

def meilisearch(options = {}, &block)
  self.meilisearch_settings = IndexSettings.new(options, &block)
  self.meilisearch_options = {
    type: model_name.to_s.constantize,
    per_page: meilisearch_settings.get_setting(:hitsPerPage) || 20, page: 1
  }.merge(options)

  attr_accessor :formatted

  if options.key?(:per_environment)
    raise BadConfiguration, ':per_environment option should be defined globally on MeiliSearch::Rails.configuration block.'
  end

  if options[:synchronous] == true
    if defined?(::Sequel::Model) && self < Sequel::Model
      class_eval do
        copy_after_validation = instance_method(:after_validation)
        define_method(:after_validation) do |*args|
          super(*args)
          copy_after_validation.bind(self).call
          ms_mark_synchronous
        end
      end
    elsif respond_to?(:after_validation)
      after_validation :ms_mark_synchronous
    end
  end
  if options[:enqueue]
    raise ArgumentError, 'Cannot use a enqueue if the `synchronous` option is set' if options[:synchronous]

    proc = if options[:enqueue] == true
             proc do |record, remove|
               MSJob.perform_later(record, remove ? 'ms_remove_from_index!' : 'ms_index!')
             end
           elsif options[:enqueue].respond_to?(:call)
             options[:enqueue]
           elsif options[:enqueue].is_a?(Symbol)
             proc { |record, remove| send(options[:enqueue], record, remove) }
           else
             raise ArgumentError, "Invalid `enqueue` option: #{options[:enqueue]}"
           end
    meilisearch_options[:enqueue] = proc do |record, remove|
      proc.call(record, remove) unless ms_without_auto_index_scope
    end
  end
  unless options[:auto_index] == false
    if defined?(::Sequel::Model) && self < Sequel::Model
      class_eval do
        copy_after_validation = instance_method(:after_validation)
        copy_before_save = instance_method(:before_save)

        define_method(:after_validation) do |*args|
          super(*args)
          copy_after_validation.bind(self).call
          ms_mark_must_reindex
        end

        define_method(:before_save) do |*args|
          copy_before_save.bind(self).call
          ms_mark_for_auto_indexing
          super(*args)
        end

        sequel_version = Gem::Version.new(Sequel.version)
        if sequel_version >= Gem::Version.new('4.0.0') && sequel_version < Gem::Version.new('5.0.0')
          copy_after_commit = instance_method(:after_commit)
          define_method(:after_commit) do |*args|
            super(*args)
            copy_after_commit.bind(self).call
            ms_perform_index_tasks
          end
        else
          copy_after_save = instance_method(:after_save)
          define_method(:after_save) do |*args|
            super(*args)
            copy_after_save.bind(self).call
            db.after_commit do
              ms_perform_index_tasks
            end
          end
        end
      end
    else
      after_validation :ms_mark_must_reindex if respond_to?(:after_validation)
      before_save :ms_mark_for_auto_indexing if respond_to?(:before_save)
      if respond_to?(:after_commit)
        after_commit :ms_perform_index_tasks
      elsif respond_to?(:after_save)
        after_save :ms_perform_index_tasks
      end
    end
  end
  unless options[:auto_remove] == false
    if defined?(::Sequel::Model) && self < Sequel::Model
      class_eval do
        copy_after_destroy = instance_method(:after_destroy)

        define_method(:after_destroy) do |*args|
          copy_after_destroy.bind(self).call
          ms_enqueue_remove_from_index!(ms_synchronous?)
          super(*args)
        end
      end
    elsif respond_to?(:after_destroy)
      after_destroy { |searchable| searchable.ms_enqueue_remove_from_index!(ms_synchronous?) }
    end
  end

  warn_searchable_missing_attributes
end

#ms_clear_index!(synchronous = false) ⇒ Object 



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# File 'lib/meilisearch-rails.rb', line 576

def ms_clear_index!(synchronous = false)
  ms_configurations.each do |options, settings|
    next if ms_indexing_disabled?(options)

    index = ms_ensure_init(options, settings)
    synchronous || options[:synchronous] ? index.delete_all_documents! : index.delete_all_documents
    @ms_indexes[MeiliSearch::Rails.active?][settings] = nil
  end
  nil
end

#ms_index(name = nil) ⇒ Object 



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# File 'lib/meilisearch-rails.rb', line 684

def ms_index(name = nil)
  if name
    ms_configurations.each do |o, s|
      return ms_ensure_init(o, s) if o[:index_uid].to_s == name.to_s
    end
    raise ArgumentError, "Invalid index name: #{name}"
  end
  ms_ensure_init
end

#ms_index!(document, synchronous = false) ⇒ Object 



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# File 'lib/meilisearch-rails.rb', line 526

def ms_index!(document, synchronous = false)
  return if ms_without_auto_index_scope

  ms_configurations.each do |options, settings|
    next if ms_indexing_disabled?(options)

    primary_key = ms_primary_key_of(document, options)
    index = ms_ensure_init(options, settings)
    if Utilities.indexable?(document, options)
      raise ArgumentError, 'Cannot index a record without a primary key' if primary_key.blank?

      doc = settings.get_attributes(document)
      doc = doc.merge ms_pk(options) => primary_key

      if synchronous || options[:synchronous]
        index.add_documents!(doc)
      else
        index.add_documents(doc)
      end
    elsif ms_conditional_index?(options) && primary_key.present?
      # remove non-indexable documents
      if synchronous || options[:synchronous]
        index.delete_document!(primary_key)
      else
        index.delete_document(primary_key)
      end
    end
  end
  nil
end

#ms_index_documents(documents, synchronous = false) ⇒ Object 



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# File 'lib/meilisearch-rails.rb', line 516

def ms_index_documents(documents, synchronous = false)
  ms_configurations.each do |options, settings|
    next if ms_indexing_disabled?(options)

    index = ms_ensure_init(options, settings)
    task = index.add_documents(documents.map { |d| settings.get_attributes(d).merge ms_pk(options) => ms_primary_key_of(d, options) })
    index.wait_for_task(task['taskUid']) if synchronous || options[:synchronous]
  end
end

#ms_index_uid(options = nil) ⇒ Object 



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# File 'lib/meilisearch-rails.rb', line 694

def ms_index_uid(options = nil)
  options ||= meilisearch_options
  global_options ||= MeiliSearch::Rails.configuration

  name = options[:index_uid] || model_name.to_s.gsub('::', '_')
  name = "#{name}_#{::Rails.env}" if global_options[:per_environment]

  name
end

#ms_must_reindex?(document) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/meilisearch-rails.rb', line 704

def ms_must_reindex?(document)
  # use +ms_dirty?+ method if implemented
  return document.send(:ms_dirty?) if document.respond_to?(:ms_dirty?)

  # Loop over each index to see if a attribute used in records has changed
  ms_configurations.each do |options, settings|
    next if ms_indexing_disabled?(options)
    return true if ms_primary_key_changed?(document, options)

    settings.get_attribute_names(document).each do |k|
      return true if ms_attribute_changed?(document, k)
      # return true if !document.respond_to?(changed_method) || document.send(changed_method)
    end
    [options[:if], options[:unless]].each do |condition|
      case condition
      when nil
        return false
      when String, Symbol
        return true if ms_attribute_changed?(document, condition)
      else
        # if the :if, :unless condition is a anything else,
        # we have no idea whether we should reindex or not
        # let's always reindex then
        return true
      end
    end
  end

  # By default, we don't reindex
  false
end

#ms_raw_search(q, params = {}) ⇒ Object 



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# File 'lib/meilisearch-rails.rb', line 587

def ms_raw_search(q, params = {})
  index_uid = params.delete(:index) || params.delete('index')

  unless meilisearch_settings.get_setting(:attributes_to_highlight).nil?
    params[:attributes_to_highlight] = meilisearch_settings.get_setting(:attributes_to_highlight)
  end

  unless meilisearch_settings.get_setting(:attributes_to_crop).nil?
    params[:attributes_to_crop] = meilisearch_settings.get_setting(:attributes_to_crop)

    unless meilisearch_settings.get_setting(:crop_length).nil?
      params[:crop_length] = meilisearch_settings.get_setting(:crop_length)
    end
  end

  index = ms_index(index_uid)
  index.search(q, params.to_h { |k, v| [k, v] })
end

#ms_reindex!(batch_size = MeiliSearch::Rails::IndexSettings::DEFAULT_BATCH_SIZE, synchronous = false) ⇒ Object 



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# File 'lib/meilisearch-rails.rb', line 472

def ms_reindex!(batch_size = MeiliSearch::Rails::IndexSettings::DEFAULT_BATCH_SIZE, synchronous = false)
  return if ms_without_auto_index_scope

  ms_configurations.each do |options, settings|
    next if ms_indexing_disabled?(options)

    index = ms_ensure_init(options, settings)
    last_task = nil

    ms_find_in_batches(batch_size) do |group|
      if ms_conditional_index?(options)
        # delete non-indexable documents
        ids = group.select { |d| !Utilities.indexable?(d, options) }.map { |d| ms_primary_key_of(d, options) }
        index.delete_documents(ids.select(&:present?))
        # select only indexable documents
        group = group.select { |d| Utilities.indexable?(d, options) }
      end
      documents = group.map do |d|
        attributes = settings.get_attributes(d)
        attributes = attributes.to_hash unless attributes.instance_of?(Hash)
        attributes.merge ms_pk(options) => ms_primary_key_of(d, options)
      end
      last_task = index.add_documents(documents)
    end
    index.wait_for_task(last_task['taskUid']) if last_task && (synchronous || options[:synchronous])
  end
  nil
end

#ms_remove_from_index!(document, synchronous = false) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/meilisearch-rails.rb', line 557

def ms_remove_from_index!(document, synchronous = false)
  return if ms_without_auto_index_scope

  primary_key = ms_primary_key_of(document)
  raise ArgumentError, 'Cannot index a record without a primary key' if primary_key.blank?

  ms_configurations.each do |options, settings|
    next if ms_indexing_disabled?(options)

    index = ms_ensure_init(options, settings)
    if synchronous || options[:synchronous]
      index.delete_document!(primary_key)
    else
      index.delete_document(primary_key)
    end
  end
  nil
end

#ms_search(query, params = {}) ⇒ Object 



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# File 'lib/meilisearch-rails.rb', line 625

def ms_search(query, params = {})
  if MeiliSearch::Rails.configuration[:pagination_backend]
    %i[page hitsPerPage hits_per_page].each do |key|
      params[key.to_s.underscore.to_sym] = params[key].to_i if params.key?(key)
    end

    # It is required to activate the finite pagination in Meilisearch v0.30 (or newer),
    # to have at least `hits_per_page` defined or `page` in the search request.
    params[:page] ||= 1
  end

  json = ms_raw_search(query, params)

  # condition_key gets the primary key of the document; looks for "id" on the options
  condition_key = if defined?(::Mongoid::Document) && include?(::Mongoid::Document)
                    ms_primary_key_method.in
                  else
                    ms_primary_key_method
                  end

  # The condition_key must be a valid column otherwise, the `.where` below will not work
  # Since we provide a way to customize the primary_key value, `ms_pk(meilisearch_options)` may not
  # respond with a valid database column. The blocks below prevent that from happening.
  has_virtual_column_as_pk = if defined?(::Sequel::Model) && self < Sequel::Model
                               meilisearch_options[:type].columns.map(&:to_s).exclude?(condition_key.to_s)
                             else
                               meilisearch_options[:type].columns.map(&:name).map(&:to_s).exclude?(condition_key.to_s)
                             end

  condition_key = meilisearch_options[:type].primary_key if has_virtual_column_as_pk

  hit_ids = if has_virtual_column_as_pk
              json['hits'].map { |hit| hit[condition_key] }
            else
              json['hits'].map { |hit| hit[ms_pk(meilisearch_options).to_s] }
            end

  # meilisearch_options[:type] refers to the Model name (e.g. Product)
  # results_by_id creates a hash with the primaryKey of the document (id) as the key and doc itself as the value
  # {"13"=>#<Product id: 13, name: "iphone", href: "apple", tags: nil, type: nil,
  # description: "Puts even more features at your fingertips", release_date: nil>}
  results_by_id = meilisearch_options[:type].where(condition_key => hit_ids).index_by do |hit|
    ms_primary_key_of(hit)
  end

  results = json['hits'].map do |hit|
    o = results_by_id[hit[ms_pk(meilisearch_options).to_s].to_s]
    if o
      o.formatted = hit['_formatted']
      o
    end
  end.compact

  res = Pagination.create(results, json['totalHits'], meilisearch_options.merge(page: json['page'], per_page: json['hitsPerPage']))
  res.extend(AdditionalMethods)
  res.send(:ms_init_raw_answer, json)
  res
end

#ms_set_settings(synchronous = false) ⇒ Object 



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# File 'lib/meilisearch-rails.rb', line 501

def ms_set_settings(synchronous = false)
  ms_configurations.each do |options, settings|
    if options[:primary_settings] && options[:inherit]
      primary = options[:primary_settings].to_settings
      final_settings = primary.merge(settings.to_settings)
    else
      final_settings = settings.to_settings
    end

    index = SafeIndex.new(ms_index_uid(options), true, options)
    task = index.update_settings(final_settings)
    index.wait_for_task(task['taskUid']) if synchronous
  end
end

#ms_without_auto_index(&block) ⇒ Object 



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# File 'lib/meilisearch-rails.rb', line 455

def ms_without_auto_index(&block)
  self.ms_without_auto_index_scope = true
  begin
    yield
  ensure
    self.ms_without_auto_index_scope = false
  end
end

#ms_without_auto_index_scope ⇒ Object 



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# File 'lib/meilisearch-rails.rb', line 468

def ms_without_auto_index_scope
  Thread.current["ms_without_auto_index_scope_for_#{model_name}"]
end

#ms_without_auto_index_scope=(value) ⇒ Object 



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# File 'lib/meilisearch-rails.rb', line 464

def ms_without_auto_index_scope=(value)
  Thread.current["ms_without_auto_index_scope_for_#{model_name}"] = value
end