2

怎么做？有活动记录选项吗？

4

2 回答 2

4

You can do it using rails monkey patch:

class ActiveRecord::Base
  def self.insert_low_priority(hash)
    keys = hash.keys.map { |v| "`#{v}`" }.join(',')
    values = hash.values.map { |v| sanitize(v) }.join(',')
    connection.insert_sql("INSERT LOW_PRIORITY INTO `#{table_name}` (#{keys}) VALUES(#{values})")
  end
end

Add it to the initializers, e.g. config/initializers/activerecord_insert_low_priority.rb

Usage is simple: ModelName.insert_low_priority :column1 => 'value'

于 2010-09-08T13:34:26.660 回答
1

MySQL 还提供了“INSERT DELAYED”，我相信它的行为与“LOW PRIORITY”略有不同？

于 2011-07-22T03:39:35.207 回答