{
  "schema": {
    "bsonType": "object",
    "required": [
      "user_id",
      "trans_id",
      "content_id"
    ],
    "permission": {
      "read": true,
      "create": false,
      "update": false,
      "delete": false
    },
    "properties": {
      "_id": {
        "description": "存储文档 ID（用户 ID），系统自动生成"
      },
      "unique_id": {
        "bsonType": "string",
        "description": "用于标识观看广告的唯一标识"
      },
      "unique_type": {
        "bsonType": "string",
        "description": "观看广告的唯一标识类型；user 用户；device 设备"
      },
      "trans_id": {
        "bsonType": "string",
        "title": "交易ID",
        "description": "广告回调传回的交易ID",
        "label": "内容id",
        "trim": "both"
      },
      "content_id": {
        "bsonType": "string",
        "title": "内容id",
        "description": "内容(文章、图片、视频)ID",
        "label": "内容id",
        "trim": "both"
      },
      "content_type": {
        "bsonType": "string",
        "title": "内容类型",
        "description": "内容类型，article 文章 image 图片 video 视频",
        "label": "内容id",
        "trim": "both",
        "enum": [
          "article",
          "image",
          "video"
        ]
      },
      "create_date": {
        "bsonType": "timestamp",
        "title": "创建时间",
        "description": "创建时间",
        "defaultValue": {
          "$env": "now"
        }
      },
      "adpid": {
        "bsonType": "string",
        "description": "广告id"
      },
      "provider": {
        "bsonType": "string",
        "description": "广告供应商"
      },
      "platform": {
        "bsonType": "string",
        "description": "客户端平台"
      }
    }
  },
  "index": [{
    "IndexName": "unique_article_trans_",
    "MgoKeySchema": {
      "MgoIndexKeys": [{
        "Name": "unique_id",
        "Direction": "1"
      }, {
        "Name": "article_id",
        "Direction": "1"
      }, {
        "Name": "trans_id",
        "Direction": "1"
      }],
      "MgoIsUnique": false
    }
  }]
}