Sha256: 18a5898c7ce40ab218fa6e4ce041fa66566b1517c6324e340927ab8d16f16d3b
Contents?: true
Size: 1.79 KB
Versions: 8
Compression:
Stored size: 1.79 KB
Contents
module Osheet::Associations
def self.included(receiver)
receiver.send(:extend, ClassMethods)
end
module ClassMethods
# A has many esque association helper
# - will provide a collection reader
# - will define a 'singular' item method for adding to the collection
# - will support adding to the collection both by black and template
def hm(collection)
unless collection.to_s =~ /s$/
raise ArgumentError, "association item names must end in 's'"
end
plural = collection.to_s
singular = plural.to_s.sub(/s$/, '')
klass = Osheet.const_get(singular.capitalize)
# define collection reader
self.send(:define_method, plural, Proc.new do
set_ivar(plural, []) if get_ivar(plural).nil?
get_ivar(plural)
end)
# define collection item writer
self.send(:define_method, singular) do |*args, &block|
set_ivar(plural, []) if get_ivar(plural).nil?
push_ivar(plural, if self.respond_to?(:workbook)
# on: worksheet, column, row
# creating: column, row, cell
worksheet = self.respond_to?(:worksheet) ? self.worksheet : self
if self.workbook && (template = self.workbook.templates.get(singular, args.first))
# add by template
klass.new(self.workbook, worksheet, *args[1..-1], &template)
else
# add by block
klass.new(self.workbook, worksheet, &block)
end
else
# on: workbook
# creating: worksheet
if (template = self.templates.get(singular, args.first))
# add by template
klass.new(self, *args[1..-1], &template)
else
# add by block
klass.new(self, &block)
end
end)
end
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems