couchrest_model/lib/couchrest/more/casted_model.rb

56 lines
1.5 KiB
Ruby

require File.join(File.dirname(__FILE__), '..', 'mixins', 'properties')
module CouchRest
module CastedModel
def self.included(base)
base.send(:include, CouchRest::Mixins::Properties)
base.send(:attr_accessor, :casted_by)
base.send(:attr_accessor, :document_saved)
end
def initialize(keys={})
raise StandardError unless self.is_a? Hash
apply_defaults # defined in CouchRest::Mixins::Properties
super()
keys.each do |k,v|
self[k.to_s] = v
end if keys
cast_keys # defined in CouchRest::Mixins::Properties
end
def []= key, value
super(key.to_s, value)
end
def [] key
super(key.to_s)
end
# Gets a reference to the top level extended
# document that a model is saved inside of
def base_doc
raise "Cannot call base_doc on a model that is not yet casted by a document" unless @casted_by
@casted_by.base_doc
end
# False if the casted model has already
# been saved in the containing document
def new_model?
!@document_saved
end
alias :new_record? :new_model?
# Sets the attributes from a hash
def update_attributes_without_saving(hash)
hash.each do |k, v|
raise NoMethodError, "#{k}= method not available, use property :#{k}" unless self.respond_to?("#{k}=")
end
hash.each do |k, v|
self.send("#{k}=",v)
end
end
alias :attributes= :update_attributes_without_saving
end
end