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Versions: 12
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Stored size: 1.54 KB
Contents
module Dragonfly
module ActiveModelExtensions
module ClassMethods
include Validations
def register_dragonfly_app(macro_name, app)
(class << self; self; end).class_eval do
# Defines e.g. 'image_accessor' for any activerecord class body
define_method macro_name do |attribute|
# Prior to activerecord 3, adding before callbacks more than once does add it more than once
before_save :save_attachments unless respond_to?(:before_save_callback_chain) && before_save_callback_chain.find(:save_attachments)
before_destroy :destroy_attachments unless respond_to?(:before_destroy_callback_chain) && before_destroy_callback_chain.find(:destroy_attachments)
# Register the new attribute
dragonfly_apps_for_attributes[attribute] = app
# Define the setter for the attribute
define_method "#{attribute}=" do |value|
attachments[attribute].assign(value)
end
# Define the getter for the attribute
define_method attribute do
attachments[attribute].to_value
end
end
end
app
end
def dragonfly_apps_for_attributes
@dragonfly_apps_for_attributes ||= begin
parent_class = ancestors.select{|a| a.is_a?(Class) }[1]
parent_class.respond_to?(:dragonfly_apps_for_attributes) ? parent_class.dragonfly_apps_for_attributes.dup : {}
end
end
end
end
end
Version data entries
12 entries across 12 versions & 2 rubygems