Sha256: d95ad4ad5747fcd21d8614e20d5e429cff4a3af36ff39ca4845d8e082eac7efb
Contents?: true
Size: 2 KB
Versions: 7
Compression:
Stored size: 2 KB
Contents
# encoding: utf-8
module Dynamoid #:nodoc:
# The base association module.
module Associations
module Association
attr_accessor :name, :options, :source
def initialize(source, name, options)
@name = name
@options = options
@source = source
end
def empty?
records.empty?
end
alias :nil? :empty?
def size
records.count
end
alias :count :size
def include?(object)
records.include?(object)
end
def delete(object)
source.update_attribute(source_attribute, source_ids - Array(object).collect(&:id))
Array(object).collect{|o| self.send(:disassociate_target, o)} if target_association
object
end
def <<(object)
source.update_attribute(source_attribute, source_ids.merge(Array(object).collect(&:id)))
Array(object).collect{|o| self.send(:associate_target, o)} if target_association
object
end
def setter(object)
source.update_attribute(source_attribute, Array(object).collect(&:id))
Array(object).collect{|o| self.send(:associate_target, o)} if target_association
object
end
def create(attributes = {})
object = target_class.create(attributes)
self << object
end
private
def records
results = target_class.find(source_ids.to_a)
results.nil? ? [] : Array(results)
end
def target_class
name.to_s.singularize.capitalize.constantize
end
def target_attribute
"#{target_association}_ids".to_sym if target_association
end
def target_ids
target.send(target_attribute) || Set.new
end
def source_class
source.class
end
def source_attribute
"#{name}_ids".to_sym
end
def source_ids
source.send(source_attribute) || Set.new
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems