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