Class: Pwnbus::Configdb::Db::Proxy

Inherits:
BasicObject
Defined in:
lib/pwnbus/configdb/db.rb,
lib/pwnbus/configdb/db.rb

Overview

Easy access to a configuration database.

Instance Method Summary collapse

Constructor Details

#initialize(database, prefix) ⇒ Proxy

Returns a new instance of Proxy.



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# File 'lib/pwnbus/configdb/db.rb', line 108

def initialize(database, prefix)
  @db = database
  @prefix = prefix
  @eigenclass = (class <<self; self; end)
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args) ⇒ Object

Pretty access



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# File 'lib/pwnbus/configdb/db.rb', line 125

def method_missing(name, *args)
  db_key = @prefix + name.to_s
  do_write = false
  
  case db_key[-1]
  when ??
    db_key = db_key[0...-1]
  when ?=
    db_key = db_key[0...-1]
    do_write = true
  end
  
  if do_write
    @eigenclass.class_eval <<END_DEF
      def #{name}(value)
        @db.proxy_set #{db_key.inspect}, value
      end
END_DEF
  else
    @eigenclass.class_eval <<END_DEF
      def #{name}
        @db.proxy_get #{db_key.inspect}
      end
END_DEF
  end
  
  # The method was defined, now fire it off.
  send name, *args
end

Instance Method Details

#empty? ⇒ Boolean

Proxy objects aren’t database values, so they behave like nil.

Returns:

  • (Boolean) 


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# File 'lib/pwnbus/configdb/db.rb', line 120

def empty?
  true
end

#nil? ⇒ Boolean

Proxy objects aren’t database values, so they behave like nil.

Returns:

  • (Boolean) 


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# File 'lib/pwnbus/configdb/db.rb', line 115

def nil?
  true
end