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Contents
module IB
module Models
# Module adding prop macro
module ModelProperties
def prop *properties
prop_hash = properties.last.is_a?(Hash) ? properties.pop : {}
properties.each { |names| define_property names, '' }
prop_hash.each { |names, type| define_property names, type }
end
def define_property names, body
aliases = [names].flatten
name = aliases.shift
instance_eval do
define_property_methods name, body
aliases.each do |ali|
alias_method "#{ali}", name
alias_method "#{ali}=", "#{name}="
end
end
end
def define_property_methods name, body={}
#p name, body
case body
when '' # default getter and setter
define_property_methods name
when Proc # setter
define_property_methods name, :set => body
when Array # [setter, getter, validators]
define_property_methods name,
:get => body[0],
:set => body[1],
:validate => body[2]
when Hash # recursion ends HERE!
define_method(name, &body[:get] || proc { self[name] })
define_method("#{name}=", &body[:set] || proc { |value| self[name] = value })
[body[:validate]].flatten.compact.each do |validator|
case validator
when Proc
validates_each name, &validator
when Hash
validates name, validator
end
end
else
define_property_methods name, :set =>
proc { |value| self[name] = value.send "to_#{body}" }
end
end
end # module ModelProperties
end
end
Version data entries
5 entries across 5 versions & 1 rubygems