Module: AlgoliaSearch::ClassMethods

Defined in:
lib/algoliasearch-rails.rb

Overview

these are the class methods added when AlgoliaSearch 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/algoliasearch-rails.rb', line 342

def self.extended(base)
  class <<base
    alias_method :without_auto_index, :algolia_without_auto_index unless method_defined? :without_auto_index
    alias_method :reindex!, :algolia_reindex! unless method_defined? :reindex!
    alias_method :reindex, :algolia_reindex unless method_defined? :reindex
    alias_method :index_objects, :algolia_index_objects unless method_defined? :index_objects
    alias_method :index!, :algolia_index! unless method_defined? :index!
    alias_method :remove_from_index!, :algolia_remove_from_index! unless method_defined? :remove_from_index!
    alias_method :clear_index!, :algolia_clear_index! unless method_defined? :clear_index!
    alias_method :search, :algolia_search unless method_defined? :search
    alias_method :raw_search, :algolia_raw_search unless method_defined? :raw_search
    alias_method :search_facet, :algolia_search_facet unless method_defined? :search_facet
    alias_method :search_for_facet_values, :algolia_search_for_facet_values unless method_defined? :search_for_facet_values
    alias_method :index, :algolia_index unless method_defined? :index
    alias_method :index_name, :algolia_index_name unless method_defined? :index_name
    alias_method :must_reindex?, :algolia_must_reindex? unless method_defined? :must_reindex?
  end

  base.cattr_accessor :algoliasearch_options, :algoliasearch_settings
end

Instance Method Details

#algolia_clear_index!(synchronous = false) ⇒ Object 



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# File 'lib/algoliasearch-rails.rb', line 592

def algolia_clear_index!(synchronous = false)
  algolia_configurations.each do |options, settings|
    next if algolia_indexing_disabled?(options)
    index = algolia_ensure_init(options, settings)
    next if options[:slave] || options[:replica]
    synchronous || options[:synchronous] ? index.clear! : index.clear
    @algolia_indexes[settings] = nil
  end
  nil
end

#algolia_index(name = nil) ⇒ Object 



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

def algolia_index(name = nil)
  if name
    algolia_configurations.each do |o, s|
      return algolia_ensure_init(o, s) if o[:index_name].to_s == name.to_s
    end
    raise ArgumentError.new("Invalid index/replica name: #{name}")
  end
  algolia_ensure_init
end

#algolia_index!(object, synchronous = false) ⇒ Object 



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# File 'lib/algoliasearch-rails.rb', line 549

def algolia_index!(object, synchronous = false)
  return if algolia_without_auto_index_scope
  algolia_configurations.each do |options, settings|
    next if algolia_indexing_disabled?(options)
    object_id = algolia_object_id_of(object, options)
    index = algolia_ensure_init(options, settings)
    next if options[:slave] || options[:replica]
    if algolia_indexable?(object, options)
      raise ArgumentError.new("Cannot index a record with a blank objectID") if object_id.blank?
      if synchronous || options[:synchronous]
        index.add_object!(settings.get_attributes(object), object_id)
      else
        index.add_object(settings.get_attributes(object), object_id)
      end
    elsif algolia_conditional_index?(options) && !object_id.blank?
      # remove non-indexable objects
      if synchronous || options[:synchronous]
        index.delete_object!(object_id)
      else
        index.delete_object(object_id)
      end
    end
  end
  nil
end

#algolia_index_name(options = nil) ⇒ Object 



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

def algolia_index_name(options = nil)
  options ||= algoliasearch_options
  name = options[:index_name] || model_name.to_s.gsub('::', '_')
  name = "#{name}_#{Rails.env.to_s}" if options[:per_environment]
  name
end

#algolia_index_objects(objects, synchronous = false) ⇒ Object 



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# File 'lib/algoliasearch-rails.rb', line 539

def algolia_index_objects(objects, synchronous = false)
  algolia_configurations.each do |options, settings|
    next if algolia_indexing_disabled?(options)
    index = algolia_ensure_init(options, settings)
    next if options[:slave] || options[:replica]
    task = index.save_objects(objects.map { |o| settings.get_attributes(o).merge 'objectID' => algolia_object_id_of(o, options) })
    index.wait_task(task["taskID"]) if synchronous || options[:synchronous]
  end
end

#algolia_must_reindex?(object) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/algoliasearch-rails.rb', line 701

def algolia_must_reindex?(object)
  algolia_configurations.each do |options, settings|
    next if options[:slave] || options[:replica]
    return true if algolia_object_id_changed?(object, options)
    settings.get_attribute_names(object).each do |k|
      changed_method = "#{k}_changed?"
      return true if !object.respond_to?(changed_method) || object.send(changed_method)
    end
    [options[:if], options[:unless]].each do |condition|
      case condition
      when nil
      when String, Symbol
        changed_method = "#{condition}_changed?"
        return true if !object.respond_to?(changed_method) || object.send(changed_method)
      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
  return false
end

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



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# File 'lib/algoliasearch-rails.rb', line 603

def algolia_raw_search(q, params = {})
  index_name = params.delete(:index) ||
               params.delete('index') ||
               params.delete(:slave) ||
               params.delete('slave') ||
               params.delete(:replica) ||
               params.delete('replica')
  index = algolia_index(index_name)
  index.search(q, Hash[params.map { |k,v| [k.to_s, v.to_s] }])
end

#algolia_reindex(batch_size = 1000, synchronous = false) ⇒ Object

reindex whole database using a extra temporary index + move operation



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# File 'lib/algoliasearch-rails.rb', line 500

def algolia_reindex(batch_size = 1000, synchronous = false)
  return if algolia_without_auto_index_scope
  algolia_configurations.each do |options, settings|
    next if algolia_indexing_disabled?(options)
    next if options[:slave] || options[:replica]

    # fetch the master settings
    master_index = algolia_ensure_init(options, settings)
    master_settings = master_index.get_settings rescue {} # if master doesn't exist yet
    master_settings.merge!(JSON.parse(settings.to_settings.to_json)) # convert symbols to strings

    # remove the replicas of the temporary index
    master_settings.delete :slaves
    master_settings.delete 'slaves'
    master_settings.delete :replicas
    master_settings.delete 'replicas'

    # init temporary index
    index_name = algolia_index_name(options)
    tmp_options = options.merge({ :index_name => "#{index_name}.tmp" })
    tmp_options.delete(:per_environment) # already included in the temporary index_name
    tmp_settings = settings.dup
    tmp_index = algolia_ensure_init(tmp_options, tmp_settings, master_settings)

    algolia_find_in_batches(batch_size) do |group|
      if algolia_conditional_index?(tmp_options)
        # select only indexable objects
        group = group.select { |o| algolia_indexable?(o, tmp_options) }
      end
      objects = group.map { |o| tmp_settings.get_attributes(o).merge 'objectID' => algolia_object_id_of(o, tmp_options) }
      tmp_index.save_objects(objects)
    end

    move_task = SafeIndex.move_index(tmp_index.name, index_name)
    master_index.wait_task(move_task["taskID"]) if synchronous || options[:synchronous]
  end
  nil
end

#algolia_reindex!(batch_size = 1000, synchronous = false) ⇒ Object 



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# File 'lib/algoliasearch-rails.rb', line 469

def algolia_reindex!(batch_size = 1000, synchronous = false)
  return if algolia_without_auto_index_scope
  algolia_configurations.each do |options, settings|
    next if algolia_indexing_disabled?(options)
    index = algolia_ensure_init(options, settings)
    next if options[:slave] || options[:replica]
    last_task = nil

    algolia_find_in_batches(batch_size) do |group|
      if algolia_conditional_index?(options)
        # delete non-indexable objects
        ids = group.select { |o| !algolia_indexable?(o, options) }.map { |o| algolia_object_id_of(o, options) }
        index.delete_objects(ids.select { |id| !id.blank? })
        # select only indexable objects
        group = group.select { |o| algolia_indexable?(o, options) }
      end
      objects = group.map do |o|
        attributes = settings.get_attributes(o)
        unless attributes.class == Hash
          attributes = attributes.to_hash
        end
        attributes.merge 'objectID' => algolia_object_id_of(o, options)
      end
      last_task = index.save_objects(objects)
    end
    index.wait_task(last_task["taskID"]) if last_task and (synchronous || options[:synchronous])
  end
  nil
end

#algolia_remove_from_index!(object, synchronous = false) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/algoliasearch-rails.rb', line 575

def algolia_remove_from_index!(object, synchronous = false)
  return if algolia_without_auto_index_scope
  object_id = algolia_object_id_of(object)
  raise ArgumentError.new("Cannot index a record with a blank objectID") if object_id.blank?
  algolia_configurations.each do |options, settings|
    next if algolia_indexing_disabled?(options)
    index = algolia_ensure_init(options, settings)
    next if options[:slave] || options[:replica]
    if synchronous || options[:synchronous]
      index.delete_object!(object_id)
    else
      index.delete_object(object_id)
    end
  end
  nil
end

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



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# File 'lib/algoliasearch-rails.rb', line 636

def algolia_search(q, params = {})
  if AlgoliaSearch.configuration[:pagination_backend]
    # kaminari and will_paginate start pagination at 1, Algolia starts at 0
    params[:page] = (params.delete('page') || params.delete(:page)).to_i
    params[:page] -= 1 if params[:page].to_i > 0
  end
  json = algolia_raw_search(q, params)
  hit_ids = json['hits'].map { |hit| hit['objectID'] }
  if defined?(::Mongoid::Document) && self.include?(::Mongoid::Document)
    condition_key = algolia_object_id_method.in
  else
    condition_key = algolia_object_id_method
  end
  results_by_id = algoliasearch_options[:type].where(condition_key => hit_ids).index_by do |hit|
    algolia_object_id_of(hit)
  end
  results = json['hits'].map do |hit|
    o = results_by_id[hit['objectID'].to_s]
    if o
      o.highlight_result = hit['_highlightResult']
      o.snippet_result = hit['_snippetResult']
      o
    end
  end.compact
  # Algolia has a default limit of 1000 retrievable hits
  total_hits = json['nbHits'].to_i < json['nbPages'].to_i * json['hitsPerPage'].to_i ?
    json['nbHits'].to_i: json['nbPages'].to_i * json['hitsPerPage'].to_i
  res = AlgoliaSearch::Pagination.create(results, total_hits, algoliasearch_options.merge({ :page => json['page'].to_i + 1, :per_page => json['hitsPerPage'] }))
  res.extend(AdditionalMethods)
  res.send(:algolia_init_raw_answer, json)
  res
end

#algolia_search_for_facet_values(facet, text, params = {}) ⇒ Object Also known as: algolia_search_facet 



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# File 'lib/algoliasearch-rails.rb', line 669

def algolia_search_for_facet_values(facet, text, params = {})
  index_name = params.delete(:index) ||
               params.delete('index') ||
               params.delete(:slave) ||
               params.delete('slave') ||
               params.delete(:replica) ||
               params.delete('replicas')
  index = algolia_index(index_name)
  query = Hash[params.map { |k, v| [k.to_s, v.to_s] }]
  index.search_facet(facet, text, query)['facetHits']
end

#algolia_without_auto_index(&block) ⇒ Object 



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# File 'lib/algoliasearch-rails.rb', line 452

def algolia_without_auto_index(&block)
  self.algolia_without_auto_index_scope = true
  begin
    yield
  ensure
    self.algolia_without_auto_index_scope = false
  end
end

#algolia_without_auto_index_scope ⇒ Object 



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# File 'lib/algoliasearch-rails.rb', line 465

def algolia_without_auto_index_scope
  Thread.current["algolia_without_auto_index_scope_for_#{self.model_name}"]
end

#algolia_without_auto_index_scope=(value) ⇒ Object 



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# File 'lib/algoliasearch-rails.rb', line 461

def algolia_without_auto_index_scope=(value)
  Thread.current["algolia_without_auto_index_scope_for_#{self.model_name}"] = value
end

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



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# File 'lib/algoliasearch-rails.rb', line 363

def algoliasearch(options = {}, &block)
  self.algoliasearch_settings = IndexSettings.new(options, block_given? ? Proc.new : nil)
  self.algoliasearch_options = { :type => algolia_full_const_get(model_name.to_s), :per_page => algoliasearch_settings.get_setting(:hitsPerPage) || 10, :page => 1 }.merge(options)

  attr_accessor :highlight_result, :snippet_result

  if options[:synchronous] == true
    if defined?(::Sequel) && 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
          algolia_mark_synchronous
        end
      end
    else
      after_validation :algolia_mark_synchronous if respond_to?(:after_validation)
    end
  end
  if options[:enqueue]
    raise ArgumentError.new("Cannot use a enqueue if the `synchronous` option if set") if options[:synchronous]
    proc = if options[:enqueue] == true
      Proc.new do |record, remove|
        AlgoliaJob.perform_later(record, remove ? 'algolia_remove_from_index!' : 'algolia_index!')
      end
    elsif options[:enqueue].respond_to?(:call)
      options[:enqueue]
    elsif options[:enqueue].is_a?(Symbol)
      Proc.new { |record, remove| self.send(options[:enqueue], record, remove) }
    else
      raise ArgumentError.new("Invalid `enqueue` option: #{options[:enqueue]}")
    end
    algoliasearch_options[:enqueue] = Proc.new do |record, remove|
      proc.call(record, remove) unless algolia_without_auto_index_scope
    end
  end
  unless options[:auto_index] == false
    if defined?(::Sequel) && self < Sequel::Model
      class_eval do
        copy_after_validation = instance_method(:after_validation)
        copy_before_save = instance_method(:before_save)
        copy_after_commit = instance_method(:after_commit)

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

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

        define_method(:after_commit) do |*args|
          super(*args)
          copy_after_commit.bind(self).call
          algolia_perform_index_tasks
        end
      end
    else
      after_validation :algolia_mark_must_reindex if respond_to?(:after_validation)
      before_save :algolia_mark_for_auto_indexing if respond_to?(:before_save)
      if respond_to?(:after_commit)
        after_commit :algolia_perform_index_tasks
      elsif respond_to?(:after_save)
        after_save :algolia_perform_index_tasks
      end
    end
  end
  unless options[:auto_remove] == false
    if defined?(::Sequel) && 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
          algolia_enqueue_remove_from_index!(algolia_synchronous?)
          super(*args)
        end
      end
    else
      after_destroy { |searchable| searchable.algolia_enqueue_remove_from_index!(algolia_synchronous?) } if respond_to?(:after_destroy)
    end
  end
end