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require_relative '../model_helpers'
module RuboCop
module Cop
# Cop that prevents the use of `dependent: ...` in ActiveRecord models.
class ActiveRecordDependent < RuboCop::Cop::Cop
include ModelHelpers
MSG = 'Do not use `dependent: to remove associated data, ' \
'use foreign keys with cascading deletes instead'.freeze
METHOD_NAMES = [:has_many, :has_one, :belongs_to].freeze
def on_send(node)
return unless in_model?(node)
return unless METHOD_NAMES.include?(node.children[1])
node.children.last.each_node(:pair) do |pair|
key_name = pair.children[0].children[0]
add_offense(pair, :expression) if key_name == :dependent
end
end
end
end
end
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