- MIGRATION_BASE_CLASS = if ActiveRecord::VERSION::MAJOR >= 5
- ActiveRecord::Migration[5.0]
- else
- ActiveRecord::Migration[4.2]
- end
-
- class RailsSettingsMigration < MIGRATION_BASE_CLASS
- def self.up
- create_table :settings do |t|
- t.string :var, :null => false
- t.text :value
- t.references :target, :null => false, :polymorphic => true
- t.timestamps :null => true
- end
- add_index :settings, [ :target_type, :target_id, :var ], :unique => true
- end
-
- def self.down
- drop_table :settings
- end
- end
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