From 87adecfef59577be17a9731245cb201ecb1b477f Mon Sep 17 00:00:00 2001 From: Ken Collins Date: Mon, 11 May 2009 23:22:20 -0400 Subject: Reimplement Fixtures.identify so that it consistently generates identities across ruby versions. [#2633 state:committed] Signed-off-by: Jeremy Kemper --- activerecord/lib/active_record/fixtures.rb | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'activerecord/lib/active_record/fixtures.rb') diff --git a/activerecord/lib/active_record/fixtures.rb b/activerecord/lib/active_record/fixtures.rb index e30fcf9a4f..721114d9d0 100644 --- a/activerecord/lib/active_record/fixtures.rb +++ b/activerecord/lib/active_record/fixtures.rb @@ -1,6 +1,7 @@ require 'erb' require 'yaml' require 'csv' +require 'zlib' require 'active_support/dependencies' require 'active_support/test_case' require 'active_support/core_ext/logger' @@ -434,6 +435,7 @@ end # Any fixture labeled "DEFAULTS" is safely ignored. class Fixtures < (RUBY_VERSION < '1.9' ? YAML::Omap : Hash) + MAX_ID = 2 ** 31 - 1 DEFAULT_FILTER_RE = /\.ya?ml$/ @@all_cached_fixtures = {} @@ -525,11 +527,10 @@ class Fixtures < (RUBY_VERSION < '1.9' ? YAML::Omap : Hash) cached_fixtures(connection, table_names) end - # Returns a consistent identifier for +label+. This will always - # be a positive integer, and will always be the same for a given - # label, assuming the same OS, platform, and version of Ruby. + # Returns a consistent, platform-independent identifier for +label+. + # Identifiers are positive integers less than 2^32. def self.identify(label) - label.to_s.hash.abs + Zlib.crc32(label.to_s) % MAX_ID end attr_reader :table_name, :name -- cgit v1.2.3