Rails、MySQL的utf8中文乱码问题

又回到这个老问题，表单输入中文时数据库数据为乱码
解决方案: MySQL字符集采用utf8，创建数据库时也使用utf8，然后在application.rb里加上:

# application.rb
  before_filter :set_charset
  before_filter :configure_charsets

  def set_charset
    @headers [ "Content-Type" ] =  "text/html; charset=utf-8"
  end

  def configure_charsets
    @response .headers[ "Content-Type" ] =  "text/html; charset=utf-8"
    suppress(ActiveRecord::StatementInvalid) do
      ActiveRecord::Base.connection.execute 'SET NAMES UTF8'
    end
  end