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-rw-r--r--activerecord/lib/active_record/attribute_methods/dirty.rb6
1 files changed, 5 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/attribute_methods/dirty.rb b/activerecord/lib/active_record/attribute_methods/dirty.rb
index 616ae1631f..6315dd9549 100644
--- a/activerecord/lib/active_record/attribute_methods/dirty.rb
+++ b/activerecord/lib/active_record/attribute_methods/dirty.rb
@@ -107,7 +107,11 @@ module ActiveRecord
def changes_from_zero_to_string?(old, value)
# For columns with old 0 and value non-empty string
- old == 0 && value.is_a?(String) && value.present? && value != '0'
+ old == 0 && value.is_a?(String) && value.present? && non_zero?(value)
+ end
+
+ def non_zero?(value)
+ value !~ /\A0+(\.0+)?\z/
end
end
end