diff options
Diffstat (limited to 'rubocop/cop/migration/remove_concurrent_index.rb')
-rw-r--r-- | rubocop/cop/migration/remove_concurrent_index.rb | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/rubocop/cop/migration/remove_concurrent_index.rb b/rubocop/cop/migration/remove_concurrent_index.rb new file mode 100644 index 00000000000..268c49865cb --- /dev/null +++ b/rubocop/cop/migration/remove_concurrent_index.rb @@ -0,0 +1,29 @@ +require_relative '../../migration_helpers' + +module RuboCop + module Cop + module Migration + # Cop that checks if `remove_concurrent_index` is used with `up`/`down` methods + # and not `change`. + class RemoveConcurrentIndex < RuboCop::Cop::Cop + include MigrationHelpers + + MSG = '`remove_concurrent_index` is not reversible so you must manually define ' \ + 'the `up` and `down` methods in your migration class, using `add_concurrent_index` in `down`'.freeze + + def on_send(node) + return unless in_migration?(node) + return unless node.children[1] == :remove_concurrent_index + + node.each_ancestor(:def) do |def_node| + add_offense(def_node, :name) if method_name(def_node) == :change + end + end + + def method_name(node) + node.children[0] + end + end + end + end +end |