From b56376b4509073a0ef7fc0a44e51619f1bf11d8e Mon Sep 17 00:00:00 2001 From: Nikita Afanasenko Date: Tue, 13 Nov 2012 21:19:48 +0400 Subject: Use nil? instead of blank? to check dynamic finder result It's safe to use `nil?` instead of `blank?` because it's impossible to get an array on finder with bang; `all_by` finder matches against regex without bang: `when /^find_(all_|last_)?by_([_a-zA-Z]\w*)$/`. Fixes #7238 --- activerecord/CHANGELOG.md | 5 +++++ activerecord/lib/active_record/relation/finder_methods.rb | 2 +- activerecord/test/cases/finder_test.rb | 5 +++++ activerecord/test/models/topic.rb | 6 ++++++ 4 files changed, 17 insertions(+), 1 deletion(-) (limited to 'activerecord') diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index 36f628ee43..40c2399783 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -1,5 +1,10 @@ ## Rails 3.2.10 (unreleased) +* Use `nil?` instead of `blank?` to check whether dynamic finder with a bang + should raise RecordNotFound. Fixes #7238. + + *Nikita Afanasenko* + * Use query cache/uncache when using ENV["DATABASE_URL"]. Fixes #6951. [Backport #8074] diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb index abc67d9c15..44aeb309d6 100644 --- a/activerecord/lib/active_record/relation/finder_methods.rb +++ b/activerecord/lib/active_record/relation/finder_methods.rb @@ -263,7 +263,7 @@ module ActiveRecord conditions = Hash[attributes.map {|a| [a, args[attributes.index(a)]]}] result = where(conditions).send(match.finder) - if match.bang? && result.blank? + if match.bang? && result.nil? raise RecordNotFound, "Couldn't find #{@klass.name} with #{conditions.to_a.collect {|p| p.join(' = ')}.join(', ')}" else yield(result) if block_given? diff --git a/activerecord/test/cases/finder_test.rb b/activerecord/test/cases/finder_test.rb index 5d72e35c60..e50a334958 100644 --- a/activerecord/test/cases/finder_test.rb +++ b/activerecord/test/cases/finder_test.rb @@ -652,6 +652,11 @@ class FinderTest < ActiveRecord::TestCase assert_raise(ActiveRecord::RecordNotFound) { Topic.find_by_title!("The First Topic!") } end + def test_find_by_one_attribute_bang_with_blank_defined + blank_topic = BlankTopic.create(:title => "The Blank One") + assert_equal blank_topic, BlankTopic.find_by_title!("The Blank One") + end + def test_find_by_one_attribute_with_order_option assert_equal accounts(:signals37), Account.find_by_credit_limit(50, :order => 'id') assert_equal accounts(:rails_core_account), Account.find_by_credit_limit(50, :order => 'id DESC') diff --git a/activerecord/test/models/topic.rb b/activerecord/test/models/topic.rb index 1a1a18166a..5166fefe81 100644 --- a/activerecord/test/models/topic.rb +++ b/activerecord/test/models/topic.rb @@ -112,6 +112,12 @@ class ImportantTopic < Topic serialize :important, Hash end +class BlankTopic < Topic + def blank? + true + end +end + module Web class Topic < ActiveRecord::Base has_many :replies, :dependent => :destroy, :foreign_key => "parent_id", :class_name => 'Web::Reply' -- cgit v1.2.3