func Comments() orm.QuerySeter {
	var table Comment
	return orm.NewOrm().QueryTable(table)
}
Comments creates orm object to get comments from database
This method allows filtering for comment data:
e.g. models.Comments().Filter("user",user).All(...)
package models
import (
	"time"
	"github.com/astaxie/beego"
	"github.com/astaxie/beego/orm"
	"github.com/astaxie/beego/validation"
)
type Comment struct {
	Id string `orm:"pk"`
	User *User     `orm:"rel(fk);null;on_delete(do_nothing)"`
	Date time.Time `orm:"auto_now_add"`
	Text string
	ReplyTo string
}