Module: Handsoap::XmlQueryFront::XmlElement

Included in:
LibXMLDriver, NokogiriDriver, REXMLDriver
Defined in:
lib/handsoap/xml_query_front.rb

Overview

Wraps the underlying (native) xml driver, and provides a uniform interface.

Instance Method Summary (collapse)

Instance Method Details

- (Object) /(expression)

alias of xpath



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# File 'lib/handsoap/xml_query_front.rb', line 194

def /(expression)
  self.xpath(expression)
end

- (Object) [](attribute_name)

Returns the attribute value of the underlying element.

Shortcut for:

(node/"@attribute_name").to_s

Raises:

  • (NotImplementedError)


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# File 'lib/handsoap/xml_query_front.rb', line 202

def [](attribute_name)
  raise NotImplementedError.new
end

- (Object) add_namespace(prefix, uri)

Registers a prefix to refer to a namespace.

You can either register a nemspace with this function or pass it explicitly to the xpath method.



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# File 'lib/handsoap/xml_query_front.rb', line 118

def add_namespace(prefix, uri)
  @namespaces[prefix] = uri
end

- (Object) assert_prefixes!(expression, ns)

Checks that an xpath-query doesn't refer to any undefined prefixes in ns



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# File 'lib/handsoap/xml_query_front.rb', line 122

def assert_prefixes!(expression, ns)
  expression.scan(/([a-zA-Z_][a-zA-Z0-9_.-]*):[^:]+/).map{|m| m[0] }.each do |prefix|
    raise "Undefined prefix '#{prefix}' in #{ns.inspect}" if ns[prefix].nil?
  end
end

- (Object) initialize(element, namespaces = {})



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# File 'lib/handsoap/xml_query_front.rb', line 111

def initialize(element, namespaces = {})
  @element = element
  @namespaces = namespaces
end

- (Object) native_element

Returns the underlying native element.

You shouldn't need to use this, since doing so would void portability.



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# File 'lib/handsoap/xml_query_front.rb', line 168

def native_element
  @element
end

- (Object) node_name

Returns the node name of the current element.

Raises:

  • (NotImplementedError)


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# File 'lib/handsoap/xml_query_front.rb', line 172

def node_name
  raise NotImplementedError.new
end

- (Object) to_boolean

Returns the value of the element as an boolean.

See to_s



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# File 'lib/handsoap/xml_query_front.rb', line 146

def to_boolean
  t = self.to_s
  return if t.nil?
  t.downcase == 'true'
end

- (Object) to_date

Returns the value of the element as a ruby Time object.

See to_s



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# File 'lib/handsoap/xml_query_front.rb', line 154

def to_date
  t = self.to_s
  return if t.nil?
  Time.iso8601(t)
end

- (Object) to_f

Returns the value of the element as a float.

See to_s



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# File 'lib/handsoap/xml_query_front.rb', line 138

def to_f
  t = self.to_s
  return if t.nil?
  t.to_f
end

- (Object) to_i

Returns the value of the element as an integer.

See to_s



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# File 'lib/handsoap/xml_query_front.rb', line 130

def to_i
  t = self.to_s
  return if t.nil?
  t.to_i
end

- (Object) to_raw

Returns the outer XML for this element, preserving the original formatting.

Raises:

  • (NotImplementedError)


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# File 'lib/handsoap/xml_query_front.rb', line 190

def to_raw
  raise NotImplementedError.new
end

- (Object) to_s

Returns the inner text content of this element, or the value (if it's an attr or textnode).

The output is a UTF-8 encoded string, without xml-entities.

Raises:

  • (NotImplementedError)


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# File 'lib/handsoap/xml_query_front.rb', line 162

def to_s
  raise NotImplementedError.new
end

- (Object) to_xml

Returns the outer XML for this element.

Raises:

  • (NotImplementedError)


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# File 'lib/handsoap/xml_query_front.rb', line 186

def to_xml
  raise NotImplementedError.new
end

- (Object) xpath(expression, ns = nil)

Queries the document with XPath, relative to the current element.

ns Should be a Hash of prefix => namespace

Returns a NodeSelection

See add_namespace

Raises:

  • (NotImplementedError)


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# File 'lib/handsoap/xml_query_front.rb', line 182

def xpath(expression, ns = nil)
  raise NotImplementedError.new
end