method

remove_columns

v6.1.7.7 - Show latest stable - 0 notes - Class: ActiveRecord::ConnectionAdapters::SchemaStatements

1.0.0
1.1.6
1.2.6
2.0.3
2.1.0 (0)
2.2.1 (0)
2.3.8 (0)
3.0.0 (0)
3.0.9 (12)
3.1.0 (0)
3.2.1 (0)
3.2.8 (0)
3.2.13 (0)
4.0.2 (9)
4.1.8 (0)
4.2.1 (0)
4.2.7 (0)
4.2.9 (0)
5.0.0.1 (0)
5.1.7 (0)
5.2.3 (0)
6.0.0 (0)
6.1.3.1 (38)
6.1.7.7 (0)
7.0.0 (0)
7.1.3.2 (0)
7.1.3.4 (0)
What's this?

remove_columns(table_name, *column_names, type: nil, **options) public

Removes the given columns from the table definition.

remove_columns(:suppliers, :qualification, :experience)

type and other column options can be passed to make migration reversible.

remove_columns(:suppliers, :qualification, :experience, type: :string, null: false)

Show source

# File activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb, line 627
      def remove_columns(table_name, *column_names, type: nil, **options)
        if column_names.empty?
          raise ArgumentError.new("You must specify at least one column name. Example: remove_columns(:people, :first_name)")
        end

        column_names.each do |column_name|
          remove_column(table_name, column_name, type, **options)
        end
      end

remove_columns

Related methods