Class: SMG::Document

Inherits:
Nokogiri::XML::SAX::Document
  • Object
show all
Defined in:
lib/smg/document.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(object, context = nil, thing = nil) ⇒ Document

Returns a new instance of Document.



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# File 'lib/smg/document.rb', line 6

def initialize(object, context = nil, thing = nil)
  @object   = object
  @mapping  = object.class.mapping
  @stack    = []
  @docs     = []
  @elements = []
  @thing    = thing
  @context  = context
  @parsed   = []
end

Instance Attribute Details

#object ⇒ Object (readonly)

Returns the value of attribute object.



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# File 'lib/smg/document.rb', line 4

def object
  @object
end

#thing ⇒ Object (readonly)

Returns the value of attribute thing.



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# File 'lib/smg/document.rb', line 4

def thing
  @thing
end

Instance Method Details

#cdata_block(string) ⇒ Object 



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# File 'lib/smg/document.rb', line 77

def cdata_block(string)
  characters(string)
end

#characters(string) ⇒ Object 



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# File 'lib/smg/document.rb', line 72

def characters(string)
  @docs.each { |doc| doc.characters(string) }
  @elements.each { |e| e.last << string }
end

#end_element(name) ⇒ Object 



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# File 'lib/smg/document.rb', line 52

def end_element(name)

  if e = @elements.last and e.first.path == @stack
    e,chars = *@elements.pop
    @object.__send__(e.accessor, e.cast(chars))
    @parsed << e.object_id unless e.collection?
  end

  @docs.each { |doc| doc.end_element(name) }

  if doc = @docs.last and doc.thing.path == @stack
    @object.__send__(doc.thing.accessor, doc.object)
    @parsed << doc.thing.object_id unless doc.thing.collection?
    @docs.pop
  end

  @stack.pop

end

#start_element(name, attrs) ⇒ Object 



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# File 'lib/smg/document.rb', line 17

def start_element(name, attrs)

  @stack << name
  ahash = nil

  if thing = @mapping.nested[@stack] and
     !@parsed.include?(thing.object_id) &&
     thing.in_context_of?(@context) &&
     thing.with?(ahash ||= Hash[*attrs.flatten])
    @docs << Document.new(thing.data_class.new,@context,thing)
  end

  @docs.each { |doc| doc.start_element(name,attrs) }

  if !attrs.empty? && maps = @mapping.attributes[@stack]
    #maps.values_at(*(ahash ||= Hash[*attrs]).keys).compact.each do |m|
    maps.values_at(*(ahash ||= Hash[*attrs.flatten]).keys).flatten.compact.each do |m|
      if !@parsed.include?(m.object_id) &&
         m.in_context_of?(@context) &&
         m.with?(ahash)
        @object.__send__(m.accessor, m.cast(ahash[m.at]))
        @parsed << m.object_id unless m.collection?
      end
    end
  end

  if e = @mapping.elements[@stack] and
     !@parsed.include?(e.object_id) &&
     e.in_context_of?(@context) &&
     e.with?(ahash ||= Hash[*attrs.flatten])
    @elements << [e,""]
  end

end