Module: Tanker

Extended by:
Configuration
Defined in:
lib/tanker.rb,
lib/tanker/railtie.rb,
lib/tanker/utilities.rb,
lib/tanker/pagination.rb,
lib/tanker/configuration.rb,
lib/tanker/pagination/kaminari.rb,
lib/tanker/pagination/will_paginate.rb

Defined Under Namespace

Modules: ClassMethods, Configuration, InstanceMethods, Pagination, Utilities Classes: BadConfiguration, ModelConfig, NoBlockGiven, NoIndexName, NotConfigured, Railtie

Class Attribute Summary collapse

Class Method Summary collapse

Methods included from Configuration

configuration, configuration=

Class Attribute Details

.included_in ⇒ Object (readonly)

Returns the value of attribute included_in.



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# File 'lib/tanker.rb', line 33

def included_in
  @included_in
end

Class Method Details

.api ⇒ Object 



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# File 'lib/tanker.rb', line 35

def api
  @api ||= IndexTank::ApiClient.new(Tanker.configuration[:url])
end

.batch_update(records) ⇒ Object 



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# File 'lib/tanker.rb', line 54

def batch_update(records)
  return false if records.empty?
  data = records.map do |record|
    options = record.tanker_index_options
    options.merge!( :docid => record.it_doc_id, :fields => record.tanker_index_data )
    options
  end
  records.first.class.tanker_index.add_documents(data)
end

.included(klass) ⇒ Object 



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# File 'lib/tanker.rb', line 39

def included(klass)
  configuration # raises error if not defined

  @included_in ||= []
  @included_in << klass
  @included_in.uniq!

  klass.send :include, InstanceMethods
  klass.extend ClassMethods

  class << klass
    define_method(:per_page) { 10 } unless respond_to?(:per_page)
  end
end

.search(models, query, options = {}) ⇒ Object 



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# File 'lib/tanker.rb', line 64

def search(models, query, options = {})
  ids      = []
  models   = [models].flatten.uniq
  index    = models.first.tanker_index
  query    = query.join(' ') if Array === query
  snippets = options.delete(:snippets)
  fetch    = options.delete(:fetch)
  paginate = extract_setup_paginate_options(options, :page => 1, :per_page => models.first.per_page)

  if (index_names = models.map(&:tanker_config).map(&:index_name).uniq).size > 1
    raise "You can't search across multiple indexes in one call (#{index_names.inspect})"
  end

  # move conditions into the query body
  if conditions = options.delete(:conditions)
    conditions.each do |field, value|
      value = [value].flatten.compact
      value.each do |item|
        query += " #{field}:(#{item})"
      end
    end
  end

  # rephrase filter_functions
  if filter_functions = options.delete(:filter_functions)
    filter_functions.each do |function_number, ranges|
      options[:"filter_function#{function_number}"] = ranges.map{|r|r.join(':')}.join(',')
    end
  end

  # rephrase filter_docvars
  if filter_docvars = options.delete(:filter_docvars)
    filter_docvars.each do |var_number, ranges|
      options[:"filter_docvar#{var_number}"] = ranges.map{|r|r.join(':')}.join(',')
    end
  end

  # fetch values from index tank or just the type and id to instace results localy
  options[:fetch]   =  "__type,__id"
  options[:fetch]   += ",#{fetch.join(',')}" if fetch
  options[:snippet] = snippets.join(',') if snippets

  # convert category_filters to a json string
  options[:category_filters] = options[:category_filters].to_json if options[:category_filters]

  search_on_fields = models.map{|model| model.tanker_config.indexes.map{|arr| arr[0]}.uniq}.flatten.uniq.join(":(#{query.to_s}) OR ")

  query = "(#{search_on_fields}:(#{query.to_s}) OR __any:(#{query.to_s})) __type:(#{models.map(&:name).map {|name| "\"#{name.split('::').join(' ')}\"" }.join(' OR ')})"
  options = { :start => paginate[:per_page] * (paginate[:page] - 1), :len => paginate[:per_page] }.merge(options) if paginate
  results = index.search(query, options)
  categories = results['facets'] if results.has_key?('facets')

  instantiated_results = if (fetch || snippets)
    instantiate_results_from_results(results, fetch, snippets)
  else
    instantiate_results_from_db(results)
  end
  paginate === false ? instantiated_results : Pagination.create(instantiated_results, results['matches'], paginate, categories)
end