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-rw-r--r--activerecord/lib/active_record/relation/predicate_builder.rb5
-rw-r--r--activerecord/lib/active_record/relation/query_methods.rb11
2 files changed, 5 insertions, 11 deletions
diff --git a/activerecord/lib/active_record/relation/predicate_builder.rb b/activerecord/lib/active_record/relation/predicate_builder.rb
index 61d9974570..9633fd3d82 100644
--- a/activerecord/lib/active_record/relation/predicate_builder.rb
+++ b/activerecord/lib/active_record/relation/predicate_builder.rb
@@ -18,7 +18,10 @@ module ActiveRecord
attribute = table[column.to_sym]
case value
- when Array, ActiveRecord::Associations::AssociationCollection, ActiveRecord::Relation
+ when ActiveRecord::Relation
+ value.select_values = [value.klass.arel_table['id']] if value.select_values.empty?
+ attribute.in(value.arel.ast)
+ when Array, ActiveRecord::Associations::CollectionProxy
values = value.to_a.map { |x|
x.is_a?(ActiveRecord::Base) ? x.id : x
}
diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb
index 6a905b8588..f76681e880 100644
--- a/activerecord/lib/active_record/relation/query_methods.rb
+++ b/activerecord/lib/active_record/relation/query_methods.rb
@@ -209,16 +209,7 @@ module ActiveRecord
def collapse_wheres(arel, wheres)
equalities = wheres.grep(Arel::Nodes::Equality)
- groups = equalities.group_by do |equality|
- equality.left
- end
-
- groups.each do |_, eqls|
- test = eqls.inject(eqls.shift) do |memo, expr|
- memo.or(expr)
- end
- arel.where(test)
- end
+ arel.where(Arel::Nodes::And.new(equalities)) unless equalities.empty?
(wheres - equalities).each do |where|
where = Arel.sql(where) if String === where