Module: MongoMethodStorable

Defined in:
lib/mongo_method_storable.rb,
lib/mongo_method_storable/version.rb

Overview

require “mongoid/attributes”

Defined Under Namespace

Classes: AlreadyAliasedError

Constant Summary collapse

MONGO_STORE_PREFIX = 
'_old_mstore_'
VERSION = 
"0.0.1"

Instance Method Summary collapse

Instance Method Details

#mongo_store(method_name) ⇒ Object

Raises:



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# File 'lib/mongo_method_storable.rb', line 7

def mongo_store(method_name)
  old_method_name = "#{MONGO_STORE_PREFIX + method_name.to_s}".to_sym
  raise AlreadyAliasedError.new("Already aliased #{method_name}") if method_defined?(old_method_name)
  alias_method old_method_name, method_name

  if instance_method(method_name).arity == 0
    define_method method_name do
      attr_val = read_attribute method_name
      return attr_val if attr_val
      attr_val = send old_method_name
      write_attribute(method_name, attr_val)
      save!
      attr_val
    end
  else
    # deal with this case when I need to
  end
end

#storable_methods ⇒ Object 



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# File 'lib/mongo_method_storable.rb', line 26

def storable_methods
  self.instance_methods.
    select {|m| self.instance_method(m).name.to_s.start_with? MONGO_STORE_PREFIX}.
    map {|m| m.slice(MONGO_STORE_PREFIX.length..m.length).to_sym}
end