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require_relative '../../migration_helpers'
module RuboCop
module Cop
module Migration
# Cop that checks if `add_column_with_default` is used with `up`/`down` methods
# and not `change`.
class AddColumnWithDefault < RuboCop::Cop::Cop
include MigrationHelpers
def_node_matcher :add_column_with_default?, <<~PATTERN
(send nil :add_column_with_default $...)
PATTERN
def_node_matcher :defines_change?, <<~PATTERN
(def :change ...)
PATTERN
MSG = '`add_column_with_default` is not reversible so you must manually define ' \
'the `up` and `down` methods in your migration class, using `remove_column` in `down`'.freeze
def on_send(node)
return unless in_migration?(node)
return unless add_column_with_default?(node)
node.each_ancestor(:def) do |def_node|
next unless defines_change?(def_node)
add_offense(def_node, :name)
end
end
end
end
end
end
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