Module: ActsAsXapian::ActsMethods

Defined in:
lib/acts_as_xapian/base.rb

Overview

Main entry point, add acts_as_xapian to your model.

Instance Method Summary collapse

Instance Method Details

#acts_as_xapian(options) ⇒ Object

See top of this file for docs



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# File 'lib/acts_as_xapian/base.rb', line 42

def acts_as_xapian(options)
  # Give error only on queries if bindings not available
  return unless ActsAsXapian.bindings_available

  include InstanceMethods
  extend ClassMethods

  class_eval('def xapian_boost(term_type, term); 1; end') unless self.instance_methods.include?('xapian_boost')

  # extend has_many && has_many_and_belongs_to associations with our ProxyFinder to get scoped results
  # I've written a small report in the discussion group why this is the proper way of doing this.
  # see here: XXX - write it you lazy douche bag!
  self.reflections.each do |association_name, r|
    # skip if the associated model isn't indexed by acts_as_xapian
    next unless r.klass.respond_to?(:xapian?) && r.klass.xapian?
    # skip all associations except ham and habtm
    next unless [:has_many, :has_many_and_belongs_to_many].include?(r.macro)

    # XXX todo:
    # extend the associated model xapian options with this term:
    # [proxy_reflection.primary_key_name.to_sym, <magically find a free capital letter>, proxy_reflection.primary_key_name]
    # otherways this assumes that the associated & indexed model indexes this kind of term

    # but before you do the above, rewrite the options syntax... wich imho is actually very ugly

    # XXX test this nifty feature on habtm!

    if r.options[:extend].nil?
      r.options[:extend] = [ProxyFinder]
    elsif !r.options[:extend].include?(ProxyFinder)
      r.options[:extend] << ProxyFinder
    end
  end

  cattr_accessor :xapian_options
  self.xapian_options = options

  ActsAsXapian::Index.init(self.class.to_s, options)

  after_save :xapian_mark_needs_index
  after_destroy :xapian_mark_needs_destroy
end