54 lines
1.3 KiB
Ruby
54 lines
1.3 KiB
Ruby
# frozen_string_literal: true
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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 a foreign key constraint is added and require a index for it
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class AddReference < RuboCop::Cop::Cop
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include MigrationHelpers
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MSG = '`add_reference` requires `index: true` or `index: { options... }`'
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def on_send(node)
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return unless in_migration?(node)
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name = node.children[1]
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return unless name == :add_reference
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opts = node.children.last
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add_offense(node, location: :selector) unless opts && opts.type == :hash
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index_present = false
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opts.each_node(:pair) do |pair|
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index_present ||= index_enabled?(pair)
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end
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add_offense(node, location: :selector) unless index_present
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end
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private
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def index_enabled?(pair)
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return unless hash_key_type(pair) == :sym
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return unless hash_key_name(pair) == :index
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index = pair.children[1]
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index.true_type? || index.hash_type?
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end
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def hash_key_type(pair)
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pair.children[0].type
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end
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def hash_key_name(pair)
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pair.children[0].children[0]
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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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