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require "deep_cloneable/deep_clone"
module Para
module Ext
module DeepCloneExtension
# Override the default deep_cloneable method to avoid nested :except rules that target
# polymorphic relations to try to assign default values to unexisting attributes on
# models that don't define the excluded attribute
#
# For example, we can have :
#
# { except: { comments: { author: [:confirmation_token] } } }
#
# Because some comments have a an author that's a user, and the user `acts_as_cloneable`
# macro defines `{ except: [:confirmation_token] }`, but if one of the comments has
# an anonymous user in its author relation, this method would faild with a
# ActiveModel::MissingAttributeError.
#
def dup_default_attribute_value_to(kopy, attribute, origin)
return unless kopy.attributes.keys.include?(attribute.to_s)
kopy[attribute] = origin.class.column_defaults.dup[attribute.to_s]
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems