Class: Momomoto::Datatype::Boolean

Inherits:
Base
  • Object
show all
Defined in:
lib/momomoto/datatype/boolean.rb

Overview

This class represents values of boolean type.

Instance Method Summary collapse

Methods inherited from Base

#compile_rule, #default, #default_operator, #equal, #initialize, #not_null?, operator_sign

Constructor Details

This class inherits a constructor from Momomoto::Datatype::Base

Instance Method Details

#escape(input) ⇒ Object

Converts the given input to true or false if possible. Otherwise returns NULL.



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# File 'lib/momomoto/datatype/boolean.rb', line 22

def escape( input )
  case input
    when true, 1, 't', 'true', 'on' then "'t'"
    when false, 0, 'f', 'false', 'off' then "'f'"
    else "NULL"
  end
end

#filter_set(value) ⇒ Object

Values are filtered by this method when being set. Returns true or false. If the given value cannot be converted to true or false and NULL is not allowed, than again return false. Otherwise return nil.



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# File 'lib/momomoto/datatype/boolean.rb', line 12

def filter_set( value )
  case value
    when true, 1, 't', 'true', 'on' then true
    when false, 0, 'f', 'false', 'off' then false
    else not_null? ? false : nil
  end
end