Module: SchemaPlus::ForeignKeys::Middleware::Migration::RenameTable

Defined in:
lib/schema_plus/foreign_keys/middleware/migration.rb

Instance Method Summary collapse

Instance Method Details

#after(env) ⇒ Object 



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# File 'lib/schema_plus/foreign_keys/middleware/migration.rb', line 21

def after(env)
  oldname = env.table_name
  newname = env.new_name
  env.connection.foreign_keys(newname).each do |fk|
    begin
      env.connection.remove_foreign_key(newname, name: fk.name)
      env.connection.add_foreign_key(newname, fk.to_table,
                                     column: fk.column,
                                     primary_key: fk.primary_key,
                                     name: fk.name.sub(/#{oldname}/, newname),
                                     on_update: fk.on_update,
                                     on_delete: fk.on_delete,
                                     deferrable: fk.deferrable)
    rescue NotImplementedError
      # sqlite3 can't remote or add foreign keys, so just skip it
    end
  end
end