couchrest_model/lib/couchrest/model/base.rb

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module CouchRest
module Model
class Base < CouchRest::Document
extend ActiveModel::Naming
include CouchRest::Model::Configuration
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include CouchRest::Model::Connection
include CouchRest::Model::Persistence
include CouchRest::Model::DocumentQueries
include CouchRest::Model::Views
include CouchRest::Model::DesignDoc
include CouchRest::Model::ExtendedAttachments
include CouchRest::Model::ClassProxy
include CouchRest::Model::Proxyable
include CouchRest::Model::Collection
include CouchRest::Model::PropertyProtection
include CouchRest::Model::Associations
include CouchRest::Model::Validations
include CouchRest::Model::Callbacks
include CouchRest::Model::Designs
include CouchRest::Model::CastedBy
include CouchRest::Model::Dirty
include CouchRest::Model::Callbacks
def self.subclasses
@subclasses ||= []
end
def self.inherited(subklass)
super
subklass.send(:include, CouchRest::Model::Properties)
subklass.class_eval <<-EOS, __FILE__, __LINE__ + 1
def self.inherited(subklass)
super
subklass.properties = self.properties.dup
# This is nasty:
subklass._validators = self._validators.dup
end
EOS
subclasses << subklass
end
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# Instantiate a new CouchRest::Model::Base by preparing all properties
# using the provided document hash.
#
# Options supported:
#
# * :directly_set_attributes: true when data comes directly from database
# * :database: provide an alternative database
#
# If a block is provided the new model will be passed into the
# block so that it can be populated.
def initialize(attributes = {}, options = {})
super()
prepare_all_attributes(attributes, options)
# set the instance's database, if provided
self.database = options[:database] unless options[:database].nil?
unless self['_id'] && self['_rev']
self[self.model_type_key] = self.class.to_s
end
yield self if block_given?
after_initialize if respond_to?(:after_initialize)
end
# Temp solution to make the view_by methods available
def self.method_missing(m, *args, &block)
if has_view?(m)
query = args.shift || {}
return view(m, query, *args, &block)
elsif m.to_s =~ /^find_(by_.+)/
view_name = $1
if has_view?(view_name)
return first_from_view(view_name, *args)
end
end
super
end
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def to_key
new? ? nil : [id]
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end
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alias :to_param :id
alias :new_record? :new?
alias :new_document? :new?
# Compare this model with another by confirming to see
# if the IDs and their databases match!
#
# Camparison of the database is required in case the
# model has been proxied or loaded elsewhere.
#
# A Basic CouchRest document will only ever compare using
# a Hash comparison on the attributes.
def == other
return false unless other.is_a?(Base)
if id.nil? && other.id.nil?
# no ids? assume comparing nested and revert to hash comparison
to_hash == other.to_hash
else
database == other.database && id == other.id
end
end
alias :eql? :==
end
end
end