method

remove_column

v4.2.1 - Show latest stable - Class: ActiveRecord::ConnectionAdapters::SchemaStatements

remove_column(table_name, column_name, type = nil, options = {})

public

Removes the column from the table definition.

remove_column(:suppliers, :qualification)

The type and options parameters will be ignored if present. It can be helpful to provide these in a migration’s change method so it can be reverted. In that case, type and options will be used by add_column.

# File activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb, line 414
      def remove_column(table_name, column_name, type = nil, options = {})
        execute "ALTER TABLE #{quote_table_name(table_name)} DROP #{quote_column_name(column_name)}"
      end

remove_column

Related methods