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# File 'app/models/theme_settings_migration.rb', line 14
def calculate_diff(settings_before, settings_after)
diff = { additions: [], deletions: [] }
before_keys = settings_before.keys
after_keys = settings_after.keys
removed_keys = before_keys - after_keys
removed_keys.each { |key| diff[:deletions] << { key: key, val: settings_before[key] } }
added_keys = after_keys - before_keys
added_keys.each { |key| diff[:additions] << { key: key, val: settings_after[key] } }
common_keys = before_keys & after_keys
common_keys.each do |key|
if settings_before[key] != settings_after[key]
diff[:deletions] << { key: key, val: settings_before[key] }
diff[:additions] << { key: key, val: settings_after[key] }
end
end
self.diff = diff
end
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