class UnreadPolymorphicReaderMigration
Public Class Methods
down()
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# File lib/generators/unread/polymorphic_reader_migration/templates/unread_polymorphic_reader_migration.rb, line 10 def self.down remove_index :read_marks, name: 'read_marks_reader_readable_index' remove_column :read_marks, :reader_type rename_column :read_marks, :reader_id, :user_id add_index :read_marks, [:user_id, :readable_type, :readable_id] end
up()
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# File lib/generators/unread/polymorphic_reader_migration/templates/unread_polymorphic_reader_migration.rb, line 2 def self.up remove_index :read_marks, [:user_id, :readable_type, :readable_id] rename_column :read_marks, :user_id, :reader_id add_column :read_marks, :reader_type, :string execute "update read_marks set reader_type = 'User'" add_index :read_marks, [:reader_id, :reader_type, :readable_type, :readable_id], name: 'read_marks_reader_readable_index', unique: true end