Module: ActiveRecord::InsertManyStatement

Defined in:
lib/activerecord/insert_many.rb

Instance Method Summary collapse

Instance Method Details

#insert_many(fixtures, table_name = self.table_name) ⇒ Object



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# File 'lib/activerecord/insert_many.rb', line 14

def insert_many(fixtures, table_name=self.table_name)
  return if fixtures.empty?

  columns = schema_cache.columns_hash(table_name)

  sample = fixtures.first
  key_list = sample.map { |name, value| quote_column_name(name) }

  value_lists = fixtures.map do |fixture|

    binds = fixture.map do |name, value|
      name = name.to_s
      if column = columns[name]
        type = lookup_cast_type_from_column(column)
        Relation::QueryAttribute.new(name, value, type)
      else
        raise Fixture::FixtureError, %(table "#{table_name}" has no column named #{name.inspect}.)
      end
    end

    prepare_binds_for_database(binds).map do |value|
      begin
        quote(value)
      rescue TypeError
        quote(YAML.dump(value))
      end
    end
  end

  primary_key_column = schema_cache.primary_keys(table_name)
  returning = supports_returning? && primary_key_column.present? ? " RETURNING #{primary_key_column}" : ""

  execute "INSERT INTO #{quote_table_name(table_name)} (#{key_list.join(', ')}) VALUES #{value_lists.map { |value| "(#{value.join(', ')})" }.join(",")}#{returning}", "Fixture Insert"
end

#supports_returning?Boolean

Returns:

  • (Boolean)


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# File 'lib/activerecord/insert_many.rb', line 49

def supports_returning?
  self.class.name == "ActiveRecord::ConnectionAdapters::PostgreSQLAdapter"
end