{
	"bsonType": "object",
	"required": [
		"user_id",
		"trans_id",
		"content_id"
	],
	"permission": {
		"read": true,
		"create": true,
		"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)ID",
			"label": "内容id",
			"trim": "both"
		},
		"create_date": {
			"bsonType": "timestamp",
			"title": "创建时间",
			"description": "创建时间",
			"defaultValue": {
				"$env": "now"
			}
		}
	}
}
