Module: FlickrawObjects::Attributes::ClassMethods

Defined in:
lib/flickraw_objects/attributes.rb

Instance Method Summary collapse

Instance Method Details

#alias_method_chain(first_method, second_method) ⇒ Object 



50
51
52
53
54
55
56
57
 
# File 'lib/flickraw_objects/attributes.rb', line 50

def alias_method_chain(first_method, second_method)
  define_method("#{second_method}_with_#{first_method}") do
    method(first_method).call 
    method("#{second_method}_without_#{first_method}").call
  end
  alias_method "#{second_method}_without_#{first_method}", second_method 
  alias_method second_method, "#{second_method}_with_#{first_method}"
end

#attribute(name, type: nil, path: []) ⇒ Object 



31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
 
# File 'lib/flickraw_objects/attributes.rb', line 31

def attribute(name, type: nil, path: [])
  source = "@#{(@attribute_source || :init)}"
  define_method(name) do
    response = instance_variable_get(source)
    if path.empty?
      value = response.send name
    else
      value = path.inject(response) {|result, element| result.send element} 
    end
    COERCIONS.fetch(type || String).call(value)
  end
  alias_method "#{name}?", name if type == Boolean
  if @attribute_source
    alias_method_chain(@attribute_source, name)
  end

  name
end

#attribute_source(value) ⇒ Object 



27
28
29
 
# File 'lib/flickraw_objects/attributes.rb', line 27

def attribute_source(value) 
  @attribute_source = value
end