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refactor instantiate method in base, so we remove nesting if's which …

…make the code harder to read. Minor changes to contain_all_columns in IdentityMap.
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commit 14af11664147dc4b59de85970965b7b6d49975ac 1 parent 15a2e0d
@arturopie arturopie authored
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21 activerecord/lib/active_record/base.rb
@@ -954,23 +954,30 @@ def instantiate(record)
record_id = sti_class.primary_key && record[sti_class.primary_key]
if ActiveRecord::IdentityMap.enabled? && record_id
+ instance = use_identity_map(sti_class, record_id, record)
+ else
+ instance = sti_class.allocate.init_with('attributes' => record)
+ end
+
+ instance
+ end
+
+ private
+
+ def use_identity_map(sti_class, record_id, record)
if (column = sti_class.columns_hash[sti_class.primary_key]) && column.number?
record_id = record_id.to_i
end
+
if instance = IdentityMap.get(sti_class, record_id)
instance.reinit_with('attributes' => record)
else
instance = sti_class.allocate.init_with('attributes' => record)
IdentityMap.add(instance)
end
- else
- instance = sti_class.allocate.init_with('attributes' => record)
- end
- instance
- end
-
- private
+ instance
+ end
def relation #:nodoc:
@relation ||= Relation.new(self, arel_table)
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6 activerecord/lib/active_record/identity_map.rb
@@ -90,7 +90,7 @@ def get(klass, primary_key)
end
def add(record)
- repository[record.class.symbolized_sti_name][record.id] = record if contain_all_columns(record)
+ repository[record.class.symbolized_sti_name][record.id] = record if contain_all_columns?(record)
end
def remove(record)
@@ -107,8 +107,8 @@ def clear
private
- def contain_all_columns(record)
- (record.class.column_names - record.attribute_names) == []
+ def contain_all_columns?(record)
+ (record.class.column_names - record.attribute_names).empty?
end
end

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