method

change_column

rails latest stable - Class: ActiveRecord::ConnectionAdapters::PostgreSQLAdapter

change_column(table_name, column_name, type, options = {})

public

Changes the column of a table.

# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 1026
      def change_column(table_name, column_name, type, options = {})
        clear_cache!
        quoted_table_name = quote_table_name(table_name)

        execute "ALTER TABLE #{quoted_table_name} ALTER COLUMN #{quote_column_name(column_name)} TYPE #{type_to_sql(type, options[:limit], options[:precision], options[:scale])}"

        change_column_default(table_name, column_name, options[:default]) if options_include_default?(options)
        change_column_null(table_name, column_name, options[:null], options[:default]) if options.key?(:null)
      end

2Notes

Change Column.

targinosilveira · Jul 8, 20091 thank

Into your migration write the follow:

==== Using Exemple

def self.up
change_column :yourtable, :your_field, :your_type_field
end

Change Column. pt-br

targinosilveira · Jul 8, 2009

Em sua migration escreva da seguinte forma:

==== Exemplo de uso.

def self.up
change_column :sua_tabela, :seu_campo, :seu_tipo_campo
end

change_column

Method deprecated or moved

2Notes

Change Column.

Change Column. pt-br

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