method

remove_column

v4.1.8 - Show latest stable - 0 notes - Class: ActiveRecord::ConnectionAdapters::SchemaStatements

1.0.0 (0)
1.1.6 (0)
1.2.6 (0)
2.0.3 (0)
2.1.0 (9)
2.2.1 (0)
2.3.8 (0)
3.0.0 (0)
3.0.9 (-1)
3.1.0 (0)
3.2.1 (0)
3.2.8 (0)
3.2.13 (0)
4.0.2 (21)
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 (7)
6.1.3.1 (38)
6.1.7.7 (0)
7.0.0 (14)
7.1.3.2 (0)
7.1.3.4 (0)
7.2.3 (0)
8.0.0 (0)
8.1.1 (0)
What's this?

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.

Show source

# File activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb, line 396
      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