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-rw-r--r--activerecord/CHANGELOG2
-rwxr-xr-xactiverecord/lib/active_record/base.rb4
-rwxr-xr-xactiverecord/test/finder_test.rb23
3 files changed, 28 insertions, 1 deletions
diff --git a/activerecord/CHANGELOG b/activerecord/CHANGELOG
index a4ab591b65..623e06d335 100644
--- a/activerecord/CHANGELOG
+++ b/activerecord/CHANGELOG
@@ -1,5 +1,7 @@
*SVN*
+* Fixed that the dynamic finders didn't treat nil as a "IS NULL" but rather "= NULL" case #515 [Demetrius]
+
* Added bind-named arrays for interpolating a group of ids or strings in conditions #528 [bitsweat]
* Added that has_and_belongs_to_many associations with additional attributes also can be created between unsaved objects and only committed to the database when Base#save is called on the associator #524 [Eric Anderson]
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb
index c1cedbcf61..0309f03a5a 100755
--- a/activerecord/lib/active_record/base.rb
+++ b/activerecord/lib/active_record/base.rb
@@ -668,7 +668,9 @@ module ActiveRecord #:nodoc:
if method_name =~ /find_(all_by|by)_([_a-z]+)/
finder, attributes = ($1 == "all_by" ? :find_all : :find_first), $2.split("_and_")
attributes.each { |attr_name| super unless column_methods_hash[attr_name.intern] }
- conditions = attributes.collect { |attr_name| "#{attr_name} = ? "}.join(" AND ")
+
+ attr_index = -1
+ conditions = attributes.collect { |attr_name| attr_index += 1; "#{attr_name} #{arguments[attr_index] ? "=" : "IS"} ? " }.join(" AND ")
send(finder, [conditions, *arguments[0...attributes.length]], *arguments[attributes.length..-1])
else
super
diff --git a/activerecord/test/finder_test.rb b/activerecord/test/finder_test.rb
index d79bc0f365..5944717132 100755
--- a/activerecord/test/finder_test.rb
+++ b/activerecord/test/finder_test.rb
@@ -193,6 +193,29 @@ class FinderTest < Test::Unit::TestCase
assert_equal [], Topic.find_all_by_title("The First Topic!!")
end
+
+ def test_find_by_nil_attribute
+ topic = Topic.find_by_last_read nil
+ assert_not_nil topic
+ assert_nil topic.last_read
+ end
+
+ def test_find_all_by_nil_attribute
+ topics = Topic.find_all_by_last_read nil
+ assert_equal 1, topics.size
+ assert_nil topics[0].last_read
+ end
+
+ def test_find_by_nil_and_not_nil_attributes
+ topic = Topic.find_by_last_read_and_author_name nil, "Mary"
+ assert_equal "Mary", topic.author_name
+ end
+
+ def test_find_all_by_nil_and_not_nil_attributes
+ topics = Topic.find_all_by_last_read_and_author_name nil, "Mary"
+ assert_equal 1, topics.size
+ assert_equal "Mary", topics[0].author_name
+ end
protected
def bind(statement, *vars)