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Contents
module Institutions#:no_doc
module Util#:no_doc
#
# Converts the Institution to a hash with keys representing
# each Institutional attribute (as symbols) and their corresponding values.
# Example:
#
# require 'institutions'
# institution = Institution.new("my_inst", "My Institution")
# data.to_hash # => {:code => "my_inst", :name => "My Institution", :default => false }
#
def to_hash
hash = {}
instance_variables.each do |inst_var|
hash[hash_keyize(inst_var)] = instance_variable_get(inst_var)
end
hash
end
#
# Dynamically sets attr_readers for elements
#
def method_missing(method, *args, &block)
instance_variable = instance_variablize(method)
if respond_to_missing?(method) and instance_variable_defined?(instance_variable)
self.class.send :attr_reader, method.to_sym
instance_variable_get instance_variable
else
super
end
end
#
# Tells users that we respond to missing methods
# if they are instance variables.
#
def respond_to_missing?(method, include_private = false)
# Short circuit if we have invalid instance variable name,
# otherwise we get an exception that we don't need.
return super unless valid_instance_variable? method
if instance_variable_defined? instance_variablize(method)
true
else
super
end
end
def valid_instance_variable?(id)
id.to_sym.id2name.match(/[\@\=\?+\[\]]/).nil?
end
# Convert s to an instance variable
def instance_variablize(s)
"@#{s.to_sym.id2name.downcase}".to_sym
end
private :instance_variablize
# Convert s to a hash key
def hash_keyize(s)
# Remove beginning '@' and convert to symbol for hash keys.
s.to_s.sub(/^@/,'').to_sym
end
private :instance_variablize
end
end
Version data entries
7 entries across 7 versions & 1 rubygems