method

define

v1.1.6 - Show latest stable - 0 notes - Class: ActiveRecord::Schema

define(info={}, &block) public

Eval the given block. All methods available to the current connection adapter are available within the block, so you can easily use the database definition DSL to build up your schema (#create_table, #add_index, etc.).

The info hash is optional, and if given is used to define metadata about the current schema (like the schema’s version):

  ActiveRecord::Schema.define(:version => 15) do
    ...
  end

Show source

# File activerecord/lib/active_record/schema.rb, line 42
    def self.define(info={}, &block)
      instance_eval(&block)

      unless info.empty?
        initialize_schema_information
        cols = columns('schema_info')

        info = info.map do |k,v|
          v = Base.connection.quote(v, cols.detect { |c| c.name == k.to_s })
          "#{k} = #{v}"
        end

        Base.connection.update "UPDATE #{Migrator.schema_info_table_name} SET #{info.join(", ")}"
      end
    end

define

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