net.liftweb.mongodb.JsonObject.scala Maven / Gradle / Ivy
/*
* Copyright 2010-2011 WorldWide Conferencing, LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.liftweb
package mongodb
import json.Formats
import json.JsonAST.JObject
import scala.reflect.Manifest
import org.bson.types.ObjectId
/*
* These traits provide lift-json related conveniece methods for case classes
* and their companion objects. Used by MongoDocument, JsonObjectField, and
* MongoJsonObjectListField
*/
trait JsonObject[BaseDocument] {
self: BaseDocument =>
def meta: JsonObjectMeta[BaseDocument]
// convert class to a json value
def asJObject()(implicit formats: Formats): JObject = meta.toJObject(this)
}
class JsonObjectMeta[BaseDocument](implicit mf: Manifest[BaseDocument]) {
import net.liftweb.json.Extraction._
// create an instance of BaseDocument from a JObject
def create(in: JObject)(implicit formats: Formats): BaseDocument =
extract(in)(formats, mf)
// convert class to a JObject
def toJObject(in: BaseDocument)(implicit formats: Formats): JObject =
decompose(in)(formats).asInstanceOf[JObject]
}
/*
* Case class for a db reference (foreign key). To be used in a JsonObject
* ref = collection name, id is the value of the reference
* Only works with ObjectIds.
*/
case class MongoRef(ref: String, id: ObjectId)