Class: Mongoid::Config::ReplsetDatabase

Inherits:
Hash show all
Defined in:
lib/mongoid/config/replset_database.rb

Instance Method Summary collapse

Methods included from Extensions::Hash::Scoping

#scoped

Methods included from Extensions::Hash::CriteriaHelpers

#expand_complex_criteria, #extract_id

Constructor Details

#initialize(options = {}) ⇒ ReplsetDatabase

Create the new db configuration class.

replSet does not supports auth

…

Examples:

Initialize the class.

Config::ReplsetDatabase.new(
  "hosts" => [[host1,port1],[host2,port2]]
)

Parameters:

  • options (Hash) (defaults to: {}) —

    The configuration options.

Options Hash (options):

  • :hosts (Array) —

    The database host.

  • :database (String) —

    The database name.

  • :read_secondary (Boolean) —

    Tells the driver to read from secondaries.

See Also:

  • for all options

Since:

  • 2.0.0.rc.5



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# File 'lib/mongoid/config/replset_database.rb', line 77

def initialize(options = {})
  merge!(options)
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args, &block) ⇒ Object

Convenience for accessing the hash via dot notation.

Examples:

Access a value in alternate syntax.

db.host

Returns:

  • (Object) —

    The value in the hash.

Since:

  • 2.0.2



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# File 'lib/mongoid/config/replset_database.rb', line 54

def method_missing(name, *args, &block)
  self[name.to_s]
end

Instance Method Details

#authenticating? ⇒ true, false

Do we need to authenticate against the database?

Examples:

Are we authenticating?

db.authenticating?

Returns:

  • (true, false) —

    True if auth is needed, false if not.

Since:

  • 2.0.2



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# File 'lib/mongoid/config/replset_database.rb', line 42

def authenticating?
  username || password
end

#configure ⇒ Array<Mongo::DB, nil ] The Mongo databases.

Configure the database connections. This will return an array containing one Mongo::DB and nil (to keep compatibility with Mongoid::Config::Database) If you want the reads to go to a secondary node use the :read_secondary(true): option

Examples:

Configure the connection.

db.configure

Returns:

  • (Array<Mongo::DB, nil ] The Mongo databases.) —

    Array<Mongo::DB, nil ] The Mongo databases.

Since:

  • 2.0.0.rc.5



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# File 'lib/mongoid/config/replset_database.rb', line 16

def configure
  # yes, construction is weird but the driver wants
  # "A list of host-port pairs ending with a hash containing any options"
  # mongo likes symbols
  options = self.inject({ :logger => Mongoid::Logger.new }) do |memo, (k, v)|
    memo[k.to_sym] = v
    memo
  end
  connection = Mongo::ReplSetConnection.new(*(hosts.clone << options))

  if authenticating?
    connection.add_auth(database, username, password)
    connection.apply_saved_authentication
  end

  [ DatabaseProxy.new(connection, database), nil ]
end