Class: ActsAsXapian::Index

Inherits:
Object
  • Object
show all
Defined in:
lib/acts_as_xapian/index.rb

Direct Known Subclasses

ReadableIndex, WriteableIndex

Constant Summary collapse

@@db_path = 
nil
@@init_values = 
[]

Class Method Summary collapse

Class Method Details

.init(classname = nil, options = nil) ⇒ Object

Initialisation



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# File 'lib/acts_as_xapian/index.rb', line 11

def init(classname = nil, options = nil)
  # store class and options for use later, when we open the db in readable_init
  @@init_values.push([classname,options]) unless classname.nil?
end

.prepare_environment ⇒ Object

Reads the config file (if any) and sets up the path to the database we’ll be using



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# File 'lib/acts_as_xapian/index.rb', line 17

def prepare_environment
  return unless @@db_path.nil?

  # barf if we can't figure out the environment
  environment = (ENV['RAILS_ENV'] || RAILS_ENV)
  raise "Set RAILS_ENV, so acts_as_xapian can find the right Xapian database" unless environment

  # check for a config file
  config_file = File.join(RAILS_ROOT, 'config', 'xapian.yml')
  @@config = File.exists?(config_file) ? YAML.load_file(config_file)[environment] : {}
  # figure out where the DBs should go
  if config['base_db_path']
    db_parent_path = File.join(RAILS_ROOT, config['base_db_path'])
  else
    db_parent_path = File.join(RAILS_ROOT, 'db', 'xapiandbs')
  end

  # make the directory for the xapian databases to go in
  Dir.mkdir(db_parent_path) unless File.exists?(db_parent_path)

  @@db_path = File.join(db_parent_path, environment)

  # make some things that don't depend on the db
  # XXX this gets made once for each acts_as_xapian. Oh well.
  @@stemmer = Xapian::Stem.new('english')
end