Contents

# This migration comes from alchemy (originally 20140107192720)
class AddMissingUniqueIndicesToTagsAndTaggings < ActiveRecord::Migration[4.2]

  def self.up
    add_index :tags, :name, unique: true

    remove_index :taggings, :tag_id
    remove_index :taggings, [:taggable_id, :taggable_type, :context]
    add_index :taggings,
      [: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: 'tagging_idx'
    add_index :taggings, :tag_id
    add_index :taggings, [:taggable_id, :taggable_type, :context]
  end

end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
alchemy-devise-4.2.0	spec/dummy/db/migrate/20141119205156_add_missing_unique_indices_to_tags_and_taggings.alchemy.rb
alchemy-devise-4.1.0	spec/dummy/db/migrate/20141119205156_add_missing_unique_indices_to_tags_and_taggings.alchemy.rb
alchemy-devise-4.1.0.beta	spec/dummy/db/migrate/20141119205156_add_missing_unique_indices_to_tags_and_taggings.alchemy.rb
alchemy-devise-4.0.0	spec/dummy/db/migrate/20141119205156_add_missing_unique_indices_to_tags_and_taggings.alchemy.rb