Class: ActiveRecord::Coders::XMLColumn

Inherits:
Object
  • Object
show all
Defined in:
lib/serialize-rails/coders/xml_column.rb

Overview

:nodoc:

Constant Summary collapse

RESCUE_ERRORS = 
[ ArgumentError, SyntaxError ]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(object_class = Object, options = nil) ⇒ XMLColumn

Returns a new instance of XMLColumn.



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# File 'lib/serialize-rails/coders/xml_column.rb', line 10

def initialize(object_class = Object, options = nil)
  @object_class = object_class
  @options = options || Hash.new
  default_options = { :load => Hash.new, :dump => Hash.new }
  @options = default_options.merge(@options)
end

Instance Attribute Details

#object_class ⇒ Object

Returns the value of attribute object_class.



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# File 'lib/serialize-rails/coders/xml_column.rb', line 8

def object_class
  @object_class
end

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/serialize-rails/coders/xml_column.rb', line 8

def options
  @options
end

Instance Method Details

#dump(obj) ⇒ Object 



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# File 'lib/serialize-rails/coders/xml_column.rb', line 17

def dump(obj)
  return if obj.nil?

  unless obj.is_a?(object_class)
    raise SerializationTypeMismatch,
      "Attribute was supposed to be a #{object_class}, but was a #{obj.class}. -- #{obj.inspect}"
  end
  Ox.dump(obj, options[:dump])
end

#load(xml) ⇒ Object 



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# File 'lib/serialize-rails/coders/xml_column.rb', line 27

def load(xml)
  return object_class.new if object_class != Object && xml.nil?
  return xml unless xml.is_a?(String)
  begin
    default_load_opts = { :mode => :object }
    obj = Ox.load(xml, default_load_opts.merge(options[:load]))

    unless obj.is_a?(object_class) || obj.nil?
      raise SerializationTypeMismatch,
        "Attribute was supposed to be a #{object_class}, but was a #{obj.class}"
    end
    obj ||= object_class.new if object_class != Object

    obj
  rescue *RESCUE_ERRORS
    xml
  end
end