Hi all,
If I have the following migration:
class CreateDocuments < ActiveRecord::Migration def self.up create_table :documents do |t| t.column :created_at, :datetime t.column :identifier, :string t.column :file_format, :string end
add_index :documents, :identifier, :unique => true end
def self.down remove_index :documents, :identifier drop_table :documents end end
Is it necessary (or recommended) to include the remove_index line in the self.down method? I realize that dropping a table in MySQL will automatically drop any indices on the table. However, I'm not sure if this is the case for all databases. So would it be considered "good style" to include the remove_index even though it's normally a bit redundant?
