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simple_record.rb
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simple_record.rb
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# Usage:
# require 'simple_record'
#
# class MyModel < SimpleRecord::Base
#
# has_attributes :name, :age
# are_ints :age
#
# end
#
# AWS_ACCESS_KEY_ID='XXXXX'
# AWS_SECRET_ACCESS_KEY='YYYYY'
# SimpleRecord.establish_connection(AWS_ACCESS_KEY_ID,AWS_SECRET_ACCESS_KEY)
#
## Save an object
# mm = MyModel.new
# mm.name = "Travis"
# mm.age = 32
# mm.save
# id = mm.id
# # Get the object back
# mm2 = MyModel.select(id)
# puts 'got=' + mm2.name + ' and he/she is ' + mm.age.to_s + ' years old'
#
# Forked off old ActiveRecord2sdb library.
require 'aws'
require 'base64'
require 'active_support'
if ActiveSupport::VERSION::MAJOR >= 3
# had to do this due to some bug: https://github.com/rails/rails/issues/12876
# fix: https://github.com/railsmachine/shadow_puppet/pull/19/files
require 'active_support/deprecation'
require 'active_support/core_ext'
end
begin
# comment out line below to test rails2 validations
require 'active_model'
rescue LoadError => ex
puts "ActiveModel not available, falling back."
end
require File.expand_path(File.dirname(__FILE__) + "/simple_record/validations")
require File.expand_path(File.dirname(__FILE__) + "/simple_record/attributes")
require File.expand_path(File.dirname(__FILE__) + "/simple_record/active_sdb")
require File.expand_path(File.dirname(__FILE__) + "/simple_record/callbacks")
require File.expand_path(File.dirname(__FILE__) + "/simple_record/encryptor")
require File.expand_path(File.dirname(__FILE__) + "/simple_record/errors")
require File.expand_path(File.dirname(__FILE__) + "/simple_record/json")
require File.expand_path(File.dirname(__FILE__) + "/simple_record/logging")
require File.expand_path(File.dirname(__FILE__) + "/simple_record/password")
require File.expand_path(File.dirname(__FILE__) + "/simple_record/results_array")
require File.expand_path(File.dirname(__FILE__) + "/simple_record/stats")
require File.expand_path(File.dirname(__FILE__) + "/simple_record/translations")
require_relative 'simple_record/sharding'
module SimpleRecord
@@options = {}
@@stats = SimpleRecord::Stats.new
@@logging = false
@@s3 = nil
@@auto_close_s3 = false
@@logger = Logger.new(STDOUT)
@@logger.level = Logger::INFO
class << self;
attr_accessor :aws_access_key, :aws_secret_key
# Deprecated
def enable_logging
@@logging = true
@@logger.level = Logger::DEBUG
end
# Deprecated
def disable_logging
@@logging = false
end
# Deprecated
def logging?
@@logging
end
def logger
@@logger
end
# This can be used to log queries and what not to a file.
# Params:
# :select=>{:filename=>"file_to_write_to", :format=>"csv"}
def log_usage(types={})
@usage_logging_options = {} unless @usage_logging_options
return if types.nil?
types.each_pair do |type, options|
options[:lines_between_flushes] = 100 unless options[:lines_between_flushes]
@usage_logging_options[type] = options
end
#puts 'SimpleRecord.usage_logging_options=' + SimpleRecord.usage_logging_options.inspect
end
def close_usage_log(type)
return unless @usage_logging_options[type]
@usage_logging_options[type][:file].close if @usage_logging_options[type][:file]
# unless we remove it, it will keep trying to log these events
# and will fail because the file is closed.
@usage_logging_options.delete(type)
end
def usage_logging_options
@usage_logging_options
end
def stats
@@stats
end
# Create a new handle to an Sdb account. All handles share the same per process or per thread
# HTTP connection to Amazon Sdb. Each handle is for a specific account.
# The +params+ are passed through as-is to Aws::SdbInterface.new
# Params:
# { :server => 'sdb.amazonaws.com' # Amazon service host: 'sdb.amazonaws.com'(default)
# :port => 443 # Amazon service port: 80(default) or 443
# :protocol => 'https' # Amazon service protocol: 'http'(default) or 'https'
# :signature_version => '0' # The signature version : '0' or '1'(default)
# :connection_mode => :default # options are
# :default (will use best known safe (as in won't need explicit close) option, may change in the future)
# :per_request (opens and closes a connection on every request to SDB)
# :single (one thread across entire app)
# :per_thread (one connection per thread)
# :pool (uses a connection pool with a maximum number of connections - NOT IMPLEMENTED YET)
# :logger => Logger Object # Logger instance: logs to STDOUT if omitted
def establish_connection(aws_access_key=nil, aws_secret_key=nil, options={})
@aws_access_key = aws_access_key
@aws_secret_key = aws_secret_key
@@options.merge!(options)
#puts 'SimpleRecord.establish_connection with options: ' + @@options.inspect
SimpleRecord::ActiveSdb.establish_connection(aws_access_key, aws_secret_key, @@options)
if options[:connection_mode] == :per_thread
@@auto_close_s3 = true
# todo: should we init this only when needed?
end
s3_ops = {:connection_mode=>options[:connection_mode] || :default}
@@s3 = Aws::S3.new(SimpleRecord.aws_access_key, SimpleRecord.aws_secret_key, s3_ops)
if options[:created_col]
SimpleRecord::Base.has_dates options[:created_col]
end
if options[:updated_col]
SimpleRecord::Base.has_dates options[:updated_col]
end
end
# Call this to close the connection to SimpleDB.
# If you're using this in Rails with per_thread connection mode, you should do this in
# an after_filter for each request.
def close_connection()
SimpleRecord::ActiveSdb.close_connection
@@s3.close_connection if @@auto_close_s3
end
# If you'd like to specify the s3 connection to use for LOBs, you can pass it in here.
# We recommend that this connection matches the type of connection you're using for SimpleDB,
# at least if you're using per_thread connection mode.
def s3=(s3)
@@s3 = s3
end
def s3
@@s3
end
def options
@@options
end
end
class Base < SimpleRecord::ActiveSdb::Base
# puts 'Is ActiveModel defined? ' + defined?(ActiveModel).inspect
if defined?(ActiveModel)
@@active_model = true
extend ActiveModel::Naming
include ActiveModel::Conversion
include ActiveModel::Validations
extend ActiveModel::Callbacks # for ActiveRecord like callbacks
include ActiveModel::Validations::Callbacks
define_model_callbacks :save, :create, :update, :destroy
include SimpleRecord::Callbacks3
alias_method :am_valid?, :valid?
else
@@active_model = false
attr_accessor :errors
include SimpleRecord::Callbacks
end
include SimpleRecord::Validations
extend SimpleRecord::Validations::ClassMethods
include SimpleRecord::Translations
# include SimpleRecord::Attributes
extend SimpleRecord::Attributes::ClassMethods
include SimpleRecord::Attributes
extend SimpleRecord::Sharding::ClassMethods
include SimpleRecord::Sharding
include SimpleRecord::Json
include SimpleRecord::Logging
extend SimpleRecord::Logging::ClassMethods
def self.extended(base)
end
def initialize(attrs={})
# todo: Need to deal with objects passed in. iterate through belongs_to perhaps and if in attrs, set the objects id rather than the object itself
initialize_base(attrs)
# Convert attributes to sdb values
attrs.each_pair do |name, value|
set(name, value, true)
end
end
def initialize_base(attrs={})
#we have to handle the virtuals.
handle_virtuals(attrs)
clear_errors
@dirty = {}
@attributes = {} # sdb values
@attributes_rb = {} # ruby values
@lobs = {}
@new_record = true
end
def initialize_from_db(attrs={})
initialize_base(attrs)
attrs.each_pair do |k, v|
@attributes[k.to_s] = v
end
end
def self.inherited(base)
# puts 'SimpleRecord::Base is inherited by ' + base.inspect
Callbacks.setup_callbacks(base)
# base.has_strings :id
base.has_dates :created, :updated
base.before_create :set_created, :set_updated
base.before_update :set_updated
end
def persisted?
!@new_record && !destroyed?
end
def destroyed?
@deleted
end
def defined_attributes_local
# todo: store this somewhere so it doesn't keep going through this
ret = self.class.defined_attributes
ret.merge!(self.class.superclass.defined_attributes) if self.class.superclass.respond_to?(:defined_attributes)
end
class << self;
attr_accessor :domain_prefix
end
#@domain_name_for_class = nil
@@cache_store = nil
# Set the cache to use
def self.cache_store=(cache)
@@cache_store = cache
end
def self.cache_store
return @@cache_store
end
# If you want a domain prefix for all your models, set it here.
def self.set_domain_prefix(prefix)
#puts 'set_domain_prefix=' + prefix
self.domain_prefix = prefix
end
# Same as set_table_name
def self.set_table_name(table_name)
set_domain_name table_name
end
# Sets the domain name for this class
def self.set_domain_name(table_name)
super
end
def domain
self.class.domain
end
def self.domain
unless @domain
# This strips off the module if there is one.
n2 = name.split('::').last || name
# puts 'n2=' + n2
if n2.respond_to?(:tableize)
@domain = n2.tableize
else
@domain = n2.downcase
end
set_domain_name @domain
end
domain_name_for_class = (SimpleRecord::Base.domain_prefix || "") + @domain.to_s
domain_name_for_class
end
def has_id_on_end(name_s)
name_s = name_s.to_s
name_s.length > 3 && name_s[-3..-1] == "_id"
end
def get_att_meta(name)
name_s = name.to_s
att_meta = defined_attributes_local[name.to_sym]
if att_meta.nil? && has_id_on_end(name_s)
att_meta = defined_attributes_local[name_s[0..-4].to_sym]
end
return att_meta
end
def sdb_att_name(name)
att_meta = get_att_meta(name)
if att_meta.type == :belongs_to && !has_id_on_end(name.to_s)
return "#{name}_id"
end
name.to_s
end
def strip_array(arg)
if arg.is_a? Array
if arg.length==1
ret = arg[0]
else
ret = arg
end
else
ret = arg
end
return ret
end
def make_dirty(arg, value)
sdb_att_name = sdb_att_name(arg)
arg = arg.to_s
# puts "Marking #{arg} dirty with #{value}" if SimpleRecord.logging?
if @dirty.include?(sdb_att_name)
old = @dirty[sdb_att_name]
# puts "#{sdb_att_name} was already dirty #{old}"
@dirty.delete(sdb_att_name) if value == old
else
old = get_attribute(arg)
# puts "dirtifying #{sdb_att_name} old=#{old.inspect} to new=#{value.inspect}" if SimpleRecord.logging?
@dirty[sdb_att_name] = old if value != old
end
end
def clear_errors
if defined?(ActiveModel)
@errors = ActiveModel::Errors.new(self)
else
@errors=SimpleRecord_errors.new
end
end
def []=(attribute, values)
make_dirty(attribute, values)
super
end
def [](attribute)
super
end
def set_created
set(SimpleRecord.options[:created_col] || :created, Time.now)
end
def set_updated
set(SimpleRecord.options[:updated_col] || :updated, Time.now)
end
# an aliased method since many people use created_at/updated_at naming convention
def created_at
self.created
end
# an aliased method since many people use created_at/updated_at naming convention
def updated_at
self.updated
end
def cache_store
@@cache_store
end
def domain_ok(ex, options={})
if (ex.message().index("NoSuchDomain") != nil)
dom = options[:domain] || domain
self.class.create_domain(dom)
return true
end
return false
end
def new_record?
# todo: new_record in activesdb should align with how we're defining a new record here, ie: if id is nil
super
end
@create_domain_called = false
# Options:
# - :except => Array of attributes to NOT save
# - :dirty => true - Will only store attributes that were modified. To make it save regardless and have it update the :updated value, include this and set it to false.
# - :domain => Explicitly define domain to use.
#
def save(options={})
puts 'SAVING: ' + self.inspect if SimpleRecord.logging?
# todo: Clean out undefined values in @attributes (in case someone set the attributes hash with values that they hadn't defined)
clear_errors
# todo: decide whether this should go before pre_save or after pre_save? pre_save dirties "updated" and perhaps other items due to callbacks
if options[:dirty]
# puts '@dirtyA=' + @dirty.inspect
return true if @dirty.size == 0 # Nothing to save so skip it
end
ok = pre_save(options) # Validates and sets ID
if ok
if @@active_model
ok = create_or_update(options)
else
ok = do_actual_save(options)
end
end
return ok
end
def do_actual_save(options)
begin
is_create = new_record? # self[:id].nil?
dirty = @dirty
# puts 'dirty before=' + @dirty.inspect
if options[:dirty]
# puts '@dirty=' + @dirty.inspect
return true if @dirty.size == 0 # This should probably never happen because after pre_save, created/updated dates are changed
options[:dirty_atts] = @dirty
end
to_delete = get_atts_to_delete
if self.class.is_sharded?
options[:domain] = sharded_domain
end
return save_super(dirty, is_create, options, to_delete)
rescue Aws::AwsError => ex
raise ex
end
end
# if @@active_model
# alias_method :old_save, :save
#
# def save(options={})
## puts 'extended save'
# x = create_or_update
## puts 'save x=' + x.to_s
# x
# end
# end
def create_or_update(options) #:nodoc:
# puts 'create_or_update'
ret = true
run_callbacks :save do
result = new_record? ? create(options) : update(options)
# puts 'save_callbacks result=' + result.inspect
ret = result
end
ret
end
def create(options) #:nodoc:
puts '3 create'
ret = true
run_callbacks :create do
x = do_actual_save(options)
# puts 'create old_save result=' + x.to_s
ret = x
end
ret
end
#
def update(options) #:nodoc:
puts '3 update'
ret = true
run_callbacks :update do
x = do_actual_save(options)
# puts 'update old_save result=' + x.to_s
ret = x
end
ret
end
def save!(options={})
save(options) || raise(RecordNotSaved.new(self))
end
# this is a bit wonky, save! should call this, not sure why it's here.
def save_with_validation!(options={})
save!
end
def self.create(attributes={})
# puts "About to create in domain #{domain}"
super
end
def self.create!(attributes={})
item = self.new(attributes)
item.save!
item
end
def save_super(dirty, is_create, options, to_delete)
SimpleRecord.stats.saves += 1
if save2(options)
self.class.cache_results(self)
delete_niled(to_delete)
save_lobs(dirty)
after_save_cleanup
unless @@active_model
if (is_create ? run_after_create : run_after_update) && run_after_save
# puts 'all good?'
return true
else
return false
end
end
return true
else
return false
end
end
def save_lobs(dirty=nil)
# puts 'dirty.inspect=' + dirty.inspect
dirty = @dirty if dirty.nil?
all_clobs = {}
dirty_clobs = {}
defined_attributes_local.each_pair do |k, v|
# collect up the clobs in case it's a single put
if v.type == :clob
val = @lobs[k]
all_clobs[k] = val
if dirty.include?(k.to_s)
dirty_clobs[k] = val
else
# puts 'NOT DIRTY'
end
end
end
if dirty_clobs.size > 0
if self.class.get_sr_config[:single_clob]
# all clobs in one chunk
# using json for now, could change later
val = all_clobs.to_json
puts 'val=' + val.inspect
put_lob(single_clob_id, val, :s3_bucket=>:new)
else
dirty_clobs.each_pair do |k, val|
put_lob(s3_lob_id(k), val)
end
end
end
end
def delete_lobs
defined_attributes_local.each_pair do |k, v|
if v.type == :clob
if self.class.get_sr_config[:single_clob]
s3_bucket(false, :s3_bucket=>:new).delete_key(single_clob_id)
SimpleRecord.stats.s3_deletes += 1
return
else
s3_bucket.delete_key(s3_lob_id(k))
SimpleRecord.stats.s3_deletes += 1
end
end
end
end
def put_lob(k, val, options={})
begin
s3_bucket(false, options).put(k, val)
rescue Aws::AwsError => ex
if ex.include? /NoSuchBucket/
s3_bucket(true, options).put(k, val)
else
raise ex
end
end
SimpleRecord.stats.s3_puts += 1
end
def is_dirty?(name)
# todo: should change all the dirty stuff to symbols?
# puts '@dirty=' + @dirty.inspect
# puts 'name=' +name.to_s
@dirty.include? name.to_s
end
def s3
return SimpleRecord.s3 if SimpleRecord.s3
# todo: should optimize this somehow, like use the same connection_mode as used in SR
# or keep open while looping in ResultsArray.
Aws::S3.new(SimpleRecord.aws_access_key, SimpleRecord.aws_secret_key)
end
# options:
# :s3_bucket => :old/:new/"#{any_bucket_name}". :new if want to use new bucket. Defaults to :old for backwards compatability.
def s3_bucket(create=false, options={})
s3.bucket(s3_bucket_name(options[:s3_bucket]), create)
end
def s3_bucket_name(s3_bucket_option=:old)
if s3_bucket_option == :new || SimpleRecord.options[:s3_bucket] == :new
# this is the bucket that will be used going forward for anything related to s3
ret = "simple_record_#{SimpleRecord.aws_access_key}"
elsif !SimpleRecord.options[:s3_bucket].nil? && SimpleRecord.options[:s3_bucket] != :old
ret = SimpleRecord.options[:s3_bucket]
else
ret = SimpleRecord.aws_access_key + "_lobs"
end
ret
end
def s3_lob_id(name)
# if s3_bucket is not nil and not :old, then we use the new key.
if !SimpleRecord.options[:s3_bucket].nil? && SimpleRecord.options[:s3_bucket] != :old
"lobs/#{self.id}_#{name}"
else
self.id + "_" + name.to_s
end
end
def single_clob_id
"lobs/#{self.id}_single_clob"
end
def self.get_encryption_key()
key = SimpleRecord.options[:encryption_key]
# if key.nil?
# puts 'WARNING: Encrypting attributes with your AWS Access Key. You should use your own :encryption_key so it doesn\'t change'
# key = connection.aws_access_key_id # default to aws access key. NOT recommended in case you start using a new key
# end
return key
end
def pre_save(options)
# puts '@@active_model ? ' + @@active_model.inspect
ok = true
is_create = self[:id].nil?
unless @@active_model
ok = run_before_validation && (is_create ? run_before_validation_on_create : run_before_validation_on_update)
return false unless ok
end
# validate()
# is_create ? validate_on_create : validate_on_update
if !valid?
puts 'not valid'
return false
end
#
## puts 'AFTER VALIDATIONS, ERRORS=' + errors.inspect
# if (!errors.nil? && errors.size > 0)
## puts 'THERE ARE ERRORS, returning false'
# return false
# end
unless @@active_model
ok = run_after_validation && (is_create ? run_after_validation_on_create : run_after_validation_on_update)
return false unless ok
end
# Now for callbacks
unless @@active_model
ok = respond_to?(:before_save) ? before_save : true
if ok
# puts 'ok'
if is_create && respond_to?(:before_create)
# puts 'responsds to before_create'
ok = before_create
elsif !is_create && respond_to?(:before_update)
ok = before_update
end
end
if ok
ok = run_before_save && (is_create ? run_before_create : run_before_update)
end
else
end
prepare_for_update
ok
end
def get_atts_to_delete
to_delete = []
changes.each_pair do |key, v|
if v[1].nil?
to_delete << key
@attributes.delete(key)
end
end
# @attributes.each do |key, value|
## puts 'key=' + key.inspect + ' value=' + value.inspect
# if value.nil? || (value.is_a?(Array) && value.size == 0) || (value.is_a?(Array) && value.size == 1 && value[0] == nil)
# to_delete << key
# @attributes.delete(key)
# end
# end
return to_delete
end
# Run pre_save on each object, then runs batch_put_attributes
# Returns
def self.batch_save(objects, options={})
options[:create_domain] = true if options[:create_domain].nil?
results = []
to_save = []
if objects && objects.size > 0
objects.each_slice(25) do |objs|
objs.each do |o|
ok = o.pre_save(options)
raise "Pre save failed on object [" + o.inspect + "]" if !ok
results << ok
next if !ok # todo: this shouldn't be here should it? raises above
o.pre_save2
to_save << Aws::SdbInterface::Item.new(o.id, o.attributes, true)
end
connection.batch_put_attributes(domain, to_save, options)
to_save.clear
end
end
objects.each do |o|
o.save_lobs(nil)
end
results
end
# Pass in an array of objects
def self.batch_delete(objects, options={})
if objects
objects.each_slice(25) do |objs|
connection.batch_delete_attributes @domain, objs.collect { |x| x.id }
end
end
end
#
# Usage: ClassName.delete id
#
def self.delete(id)
connection.delete_attributes(domain, id)
@deleted = true
end
# Pass in the same OPTIONS you'd pass into a find(:all, OPTIONS)
def self.delete_all(options={})
# could make this quicker by just getting item_names and deleting attributes rather than creating objects
obs = self.find(:all, options)
i = 0
obs.each do |a|
a.delete
i+=1
end
return i
end
# Pass in the same OPTIONS you'd pass into a find(:all, OPTIONS)
def self.destroy_all(options={})
obs = self.find(:all, options)
i = 0
obs.each do |a|
a.destroy
i+=1
end
return i
end
def delete(options={})
if self.class.is_sharded?
options[:domain] = sharded_domain
end
super(options)
# delete lobs now too
delete_lobs
end
def destroy
if @@active_model
run_callbacks :destroy do
delete
end
else
return run_before_destroy && delete && run_after_destroy
end
end
def delete_niled(to_delete)
# puts 'to_delete=' + to_delete.inspect
if to_delete.size > 0
# puts 'Deleting attributes=' + to_delete.inspect
SimpleRecord.stats.deletes += 1
delete_attributes to_delete
to_delete.each do |att|
att_meta = get_att_meta(att)
if att_meta.type == :clob
s3_bucket.key(s3_lob_id(att)).delete
end
end
end
end
def reload
super()
end
def update_attributes(atts)
set_attributes(atts)
save
end
def update_attributes!(atts)
set_attributes(atts)
save!
end
def self.quote_regexp(a, re)
a =~ re
#was there a match?
if $&
before=$`
middle=$&
after =$'
before =~ /'$/ #is there already a quote immediately before the match?
unless $&
return "#{before}'#{middle}'#{quote_regexp(after, re)}" #if not, put quotes around the match
else
return "#{before}#{middle}#{quote_regexp(after, re)}" #if so, assume it is quoted already and move on
end
else
#no match, just return the string
return a
end
end
@@regex_no_id = /.*Couldn't find.*with ID.*/
#
# Usage:
# Find by ID:
# MyModel.find(ID)
#
# Query example:
# MyModel.find(:all, :conditions=>["name = ?", name], :order=>"created desc", :limit=>10)
#
# Extra options:
# :per_token => the number of results to return per next_token, max is 2500.
# :consistent_read => true/false -- as per http://developer.amazonwebservices.com/connect/entry.jspa?externalID=3572
# :retries => maximum number of times to retry this query on an error response.
# :shard => shard name or array of shard names to use on this query.
def self.find(*params)
#puts 'params=' + params.inspect
q_type = :all
select_attributes=[]
if params.size > 0
q_type = params[0]
end
options = {}
if params.size > 1
options = params[1]
end
conditions = options[:conditions]
if conditions && conditions.is_a?(String)
conditions = [conditions]
options[:conditions] = conditions
end
if !options[:shard_find] && is_sharded?
# then break off and get results across all shards
return find_sharded(*params)
end
# Pad and Offset number attributes
params_dup = params.dup
if params.size > 1
options = params[1]
#puts 'options=' + options.inspect
#puts 'after collect=' + options.inspect
convert_condition_params(options)
per_token = options[:per_token]
consistent_read = options[:consistent_read]
if per_token || consistent_read then
op_dup = options.dup
op_dup[:limit] = per_token # simpledb uses Limit as a paging thing, not what is normal
op_dup[:consistent_read] = consistent_read
params_dup[1] = op_dup
end
end
# puts 'params2=' + params.inspect
ret = q_type == :all ? [] : nil
begin
results=find_with_metadata(*params_dup)
#puts "RESULT=" + results.inspect
write_usage(:select, domain, q_type, options, results)
#puts 'params3=' + params.inspect
SimpleRecord.stats.selects += 1
if q_type == :count
ret = results[:count]
elsif q_type == :first
ret = results[:items].first
# todo: we should store request_id and box_usage with the object maybe?
cache_results(ret)
elsif results[:single_only]
ret = results[:single]
#puts 'results[:single] ' + ret.inspect
cache_results(ret)
else
#puts 'last step items = ' + results.inspect
if results[:items] #.is_a?(Array)
cache_results(results[:items])
ret = SimpleRecord::ResultsArray.new(self, params, results, next_token)
end
end
rescue Aws::AwsError, SimpleRecord::ActiveSdb::ActiveSdbError => ex
#puts "RESCUED: " + ex.message
if (ex.message().index("NoSuchDomain") != nil)
# this is ok
# elsif (ex.message() =~ @@regex_no_id) This is RecordNotFound now
# ret = nil
else
#puts 're-raising'
raise ex