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Versions: 12
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Contents
class Eco::Data::Locations::NodeDiff
module Accessors
class << self
def included(base)
super(base)
base.extend Eco::Language::Models::ClassHelpers
base.extend ClassMethods
base.inheritable_class_vars :exposed_attrs
end
end
module ClassMethods
# Creates the defined accessor attributes against `NodeDiff`
# It also creates a method with question mark that evaluates true if **any** the attr changed.
# @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]`
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
# Keeps track on what attributes have been exposed.
def exposed_attrs
@exposed_attrs ||= []
end
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems