Class: Relief::Element
- Inherits:
-
Object
- Object
- Relief::Element
- Defined in:
- lib/relief/element.rb
Instance Attribute Summary collapse
-
#children ⇒ Object
readonly
Returns the value of attribute children.
-
#name ⇒ Object
readonly
Returns the value of attribute name.
-
#options ⇒ Object
readonly
Returns the value of attribute options.
Instance Method Summary collapse
- #attribute(name, options = {}, &block) ⇒ Object
- #element(name, options = {}, &block) ⇒ Object
- #elements(name, options = {}, &block) ⇒ Object
-
#initialize(name = nil, options = {}, &block) ⇒ Element
constructor
A new instance of Element.
- #parse(document) ⇒ Object
- #xpath ⇒ Object
Constructor Details
#initialize(name = nil, options = {}, &block) ⇒ Element
Returns a new instance of Element.
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# File 'lib/relief/element.rb', line 5 def initialize(name=nil, ={}, &block) @name = name @options = @children = [] instance_eval(&block) if block_given? end |
Instance Attribute Details
#children ⇒ Object (readonly)
Returns the value of attribute children.
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# File 'lib/relief/element.rb', line 3 def children @children end |
#name ⇒ Object (readonly)
Returns the value of attribute name.
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# File 'lib/relief/element.rb', line 3 def name @name end |
#options ⇒ Object (readonly)
Returns the value of attribute options.
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# File 'lib/relief/element.rb', line 3 def @options end |
Instance Method Details
#attribute(name, options = {}, &block) ⇒ Object
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# File 'lib/relief/element.rb', line 56 def attribute(name, ={}, &block) element(name, .merge(:attribute => true), &block) end |
#element(name, options = {}, &block) ⇒ Object
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# File 'lib/relief/element.rb', line 47 def element(name, ={}, &block) [:xpath] ||= name if name =~ %r([/.]) @children << self.class.new(name, , &block) end |
#elements(name, options = {}, &block) ⇒ Object
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# File 'lib/relief/element.rb', line 52 def elements(name, ={}, &block) element(name, .merge(:collection => true), &block) end |
#parse(document) ⇒ Object
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# File 'lib/relief/element.rb', line 13 def parse(document) @children.inject({}) do |values, element| key = element.[:as] || element.name type = element.[:type] values[key] = begin target = (document / element.xpath) parse_node = lambda { |target| if element.children.any? element.parse(target) else value = target.to_s if type == Integer then value.to_i elsif type == Float then value.to_f elsif type == Date then Date.parse(value) elsif type.is_a?(Parser) then type.parse(document) else value end end } if element.[:collection] target.collect { |child| parse_node.call(child) } else parse_node.call(target) end end values end end |
#xpath ⇒ Object
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# File 'lib/relief/element.rb', line 60 def xpath if .has_key?(:xpath) [:xpath] elsif @children.any? name.to_s else attribute = @options[:attribute] attribute = name if attribute == true !attribute ? "#{name}/text()" : "@#{attribute}" end end |