Contents

# This migration comes from acts_as_taggable_on_engine (originally 2)
if ActiveRecord.gem_version >= Gem::Version.new('5.0')
  class AddMissingUniqueIndices < ActiveRecord::Migration[4.2]; end
else
  class AddMissingUniqueIndices < ActiveRecord::Migration; end
end
AddMissingUniqueIndices.class_eval do
  def self.up
    add_index :tags, :name, unique: true

    remove_index :taggings, :tag_id if index_exists?(:taggings, :tag_id)
    remove_index :taggings, %i[taggable_id taggable_type context]
    add_index :taggings,
              %i[tag_id taggable_id taggable_type context tagger_id tagger_type],
              unique: true, name: 'taggings_idx'
  end

  def self.down
    remove_index :tags, :name

    remove_index :taggings, name: 'taggings_idx'

    add_index :taggings, :tag_id unless index_exists?(:taggings, :tag_id)
    add_index :taggings, %i[taggable_id taggable_type context]
  end
end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
enju_question-0.3.2	spec/dummy/db/migrate/20180709023036_add_missing_unique_indices.acts_as_taggable_on_engine.rb
enju_question-0.3.1	spec/dummy/db/migrate/20180709023036_add_missing_unique_indices.acts_as_taggable_on_engine.rb
enju_question-0.3.0	spec/dummy/db/migrate/20180709023036_add_missing_unique_indices.acts_as_taggable_on_engine.rb
enju_question-0.3.0.beta.1	spec/dummy/db/migrate/20180709023036_add_missing_unique_indices.acts_as_taggable_on_engine.rb