method

change_null

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What's this?

change_null(column_name, null, default = nil) public

Sets or removes a NOT NULL constraint on a column.

t.change_null(:qualification, true)
t.change_null(:qualification, false, 0)

See {connection.change_column_null}[rdoc-ref:SchemaStatements#change_column_null]

Show source

# File activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb, line 688
      def change_null(column_name, null, default = nil)
        @base.change_column_null(name, column_name, null, default)
      end

change_null

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