Module: Eco::Data::Locations::NodeDiff::Accessors::ClassMethods

Defined in:
lib/eco/data/locations/node_diff/accessors.rb

Instance Method Summary collapse

Instance Method Details

#attr_expose(*attrs) ⇒ Object

Note:

the defined attributes are expected to be the keys within the source Hashes that are being compared.

Note:

accessing src1 (prev) attributes, will have it's method as prev_[attrName]

Creates the defined accessor attributes against NodeDiff It also creates a method with question mark that evaluates true if any the attr changed.



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# File 'lib/eco/data/locations/node_diff/accessors.rb', line 18

def attr_expose(*attrs)
  attrs.each do |attr|
    meth  = attr.to_sym
    methp = "prev_#{meth}".to_sym
    methq = "diff_#{meth}?".to_sym

    define_method meth do
      attr(meth)
    end

    define_method methp do
      attr_prev(meth)
    end

    exposed_attrs |= [meth]

    define_method methq do
      diff_attr?(meth)
    end
  end
end

#exposed_attrs ⇒ Object

Keeps track on what attributes have been exposed.



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# File 'lib/eco/data/locations/node_diff/accessors.rb', line 41

def exposed_attrs
  @exposed_attrs ||= []
end