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-rw-r--r--activerecord/lib/active_record/attribute_set.rb2
-rw-r--r--activerecord/lib/active_record/inheritance.rb2
-rw-r--r--activerecord/lib/active_record/model_schema.rb3
3 files changed, 4 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/attribute_set.rb b/activerecord/lib/active_record/attribute_set.rb
index 66b278219a..01f9d815d5 100644
--- a/activerecord/lib/active_record/attribute_set.rb
+++ b/activerecord/lib/active_record/attribute_set.rb
@@ -64,7 +64,7 @@ module ActiveRecord
end
def deep_dup
- dup.tap do |copy|
+ self.class.allocate.tap do |copy|
copy.instance_variable_set(:@attributes, attributes.deep_dup)
end
end
diff --git a/activerecord/lib/active_record/inheritance.rb b/activerecord/lib/active_record/inheritance.rb
index fbdaeaae51..236a65eba7 100644
--- a/activerecord/lib/active_record/inheritance.rb
+++ b/activerecord/lib/active_record/inheritance.rb
@@ -217,7 +217,7 @@ module ActiveRecord
def subclass_from_attributes(attrs)
attrs = attrs.to_h if attrs.respond_to?(:permitted?)
if attrs.is_a?(Hash)
- subclass_name = attrs.with_indifferent_access[inheritance_column]
+ subclass_name = attrs[inheritance_column] || attrs[inheritance_column.to_sym]
if subclass_name.present?
find_sti_class(subclass_name)
diff --git a/activerecord/lib/active_record/model_schema.rb b/activerecord/lib/active_record/model_schema.rb
index 5095cdfe9f..013562708c 100644
--- a/activerecord/lib/active_record/model_schema.rb
+++ b/activerecord/lib/active_record/model_schema.rb
@@ -381,7 +381,7 @@ module ActiveRecord
# default values when instantiating the Active Record object for this table.
def column_defaults
load_schema
- _default_attributes.to_hash
+ @column_defaults ||= _default_attributes.to_hash
end
def _default_attributes # :nodoc:
@@ -484,6 +484,7 @@ module ActiveRecord
@attribute_types = nil
@content_columns = nil
@default_attributes = nil
+ @column_defaults = nil
@inheritance_column = nil unless defined?(@explicit_inheritance_column) && @explicit_inheritance_column
@attributes_builder = nil
@columns = nil