instance method `change_column_null`

Ruby on Rails 2.3.18

Since v2.2.3 Last seen in v3.0.20

Available in: v2.2.3 v2.3.18 v3.0.20

Compare with:

change_column_null(table_name, column_name, null, default = nil)

No documentation comment.

Parameters

table_name req
column_name req
null req
default opt = nil

Source

# File activerecord/lib/active_record/connection_adapters/mysql_adapter.rb, line 497
      def change_column_null(table_name, column_name, null, default = nil)
        column = column_for(table_name, column_name)

        unless null || default.nil?
          execute("UPDATE #{quote_table_name(table_name)} SET #{quote_column_name(column_name)}=#{quote(default)} WHERE #{quote_column_name(column_name)} IS NULL")
        end

        change_column table_name, column_name, column.sql_type, :null => null
      end

Defined in activerecord/lib/active_record/connection_adapters/mysql_adapter.rb line 497 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::ConnectionAdapters::MysqlAdapter

Signature

Parameters