Merge pull request #17009 from arthurnn/foreign_key_symbols

Fixtures using Foreign key symbols

activerecord/lib/active_record/fixtures.rb

@@ -661,7 +661,7 @@ def table_rows
                   row[association.foreign_type] = $1
                 end
 
-                fk_type = association.active_record.columns_hash[association.foreign_key].type
+                fk_type = association.active_record.columns_hash[fk_name].type
                 row[fk_name] = ActiveRecord::FixtureSet.identify(value, fk_type)
               end
             when :has_many

activerecord/test/cases/fixtures_test.rb

@@ -675,7 +675,7 @@ class FoxyFixturesTest < ActiveRecord::TestCase
   if ActiveRecord::Base.connection.adapter_name == 'PostgreSQL'
     require 'models/uuid_parent'
     require 'models/uuid_child'
-    fixtures :uuid_parents, :uuid_children 
+    fixtures :uuid_parents, :uuid_children
   end
 
   def test_identifies_strings

activerecord/test/models/parrot.rb

@@ -19,7 +19,7 @@ class LiveParrot < Parrot
 end
 
 class DeadParrot < Parrot
-  belongs_to :killer, :class_name => 'Pirate'
+  belongs_to :killer, :class_name => 'Pirate', foreign_key: :killer_id
 end
 
 class FunkyParrot < Parrot