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Allow unscope to work with where.not

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Allows you to call #unscope on a relation with negative equality operators,
i.e. Arel::Nodes::NotIn and Arel::Nodes::NotEqual that have been generated
through the use of where.not.
This commit is contained in:
Eric Hankins 2013-10-16 13:39:43 -05:00
parent 7364156391
commit b057765817
3 changed files with 23 additions and 7 deletions
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8
activerecord/CHANGELOG.md
View file

@ -1,3 +1,11 @@
* `ActiveRecord::QueryMethods#unscope` unscopes negative equality
Allows you to call `#unscope` on a relation with negative equality
operators, i.e. `Arel::Nodes::NotIn` and `Arel::Nodes::NotEqual` that have
been generated through the use of `where.not`.
*Eric Hankins*
* Raise an exception when model without primary key calls `.find_with_ids`.
*Shimpei Makimoto*

2
activerecord/lib/active_record/relation/query_methods.rb
View file

@ -856,7 +856,7 @@ module ActiveRecord
where_values.reject! do |rel|
case rel
when Arel::Nodes::In, Arel::Nodes::Equality
when Arel::Nodes::In, Arel::Nodes::NotIn, Arel::Nodes::Equality, Arel::Nodes::NotEqual
subrelation = (rel.left.kind_of?(Arel::Attributes::Attribute) ? rel.left : rel.right)
subrelation.name.to_sym == target_value_sym
else

20
activerecord/test/cases/scoping/default_scoping_test.rb
View file

@ -122,17 +122,25 @@ class DefaultScopingTest < ActiveRecord::TestCase
end
def test_unscope_with_where_attributes
expected = Developer.order('salary DESC').collect { |dev| dev.name }
received = DeveloperOrderedBySalary.where(name: 'David').unscope(where: :name).collect { |dev| dev.name }
expected = Developer.order('salary DESC').collect(&:name)
received = DeveloperOrderedBySalary.where(name: 'David').unscope(where: :name).collect(&:name)
assert_equal expected, received
expected_2 = Developer.order('salary DESC').collect { |dev| dev.name }
received_2 = DeveloperOrderedBySalary.select("id").where("name" => "Jamis").unscope({:where => :name}, :select).collect { |dev| dev.name }
expected_2 = Developer.order('salary DESC').collect(&:name)
received_2 = DeveloperOrderedBySalary.select("id").where("name" => "Jamis").unscope({:where => :name}, :select).collect(&:name)
assert_equal expected_2, received_2
expected_3 = Developer.order('salary DESC').collect { |dev| dev.name }
received_3 = DeveloperOrderedBySalary.select("id").where("name" => "Jamis").unscope(:select, :where).collect { |dev| dev.name }
expected_3 = Developer.order('salary DESC').collect(&:name)
received_3 = DeveloperOrderedBySalary.select("id").where("name" => "Jamis").unscope(:select, :where).collect(&:name)
assert_equal expected_3, received_3
expected_4 = Developer.order('salary DESC').collect(&:name)
received_4 = DeveloperOrderedBySalary.where.not("name" => "Jamis").unscope(where: :name).collect(&:name)
assert_equal expected_4, received_4
expected_5 = Developer.order('salary DESC').collect(&:name)
received_5 = DeveloperOrderedBySalary.where.not("name" => ["Jamis", "David"]).unscope(where: :name).collect(&:name)
assert_equal expected_5, received_5
end
def test_unscope_multiple_where_clauses