{
  "schema": {
    "bsonType": "object",
    "required": [],
    "permission": {
      "read": "doc.to_uid == auth.uid || doc.from_uid == auth.uid",
      "create": true,
      "update": "doc.to_uid == auth.uid",
      "delete": "doc.to_uid == auth.uid"
    },
    "properties": {
      "_id": {
        "description": "ID，系统自动生成"
      },
      "from_uid": {
        "description": "发出邀请的用户id",
        "bsonType": "string",
        "forceDefaultValue": {
          "$env": "uid"
        },
        "foreignKey": "uni-id-users._id"
      },
      "to_uid": {
        "defaultValue": "接收邀请的用户id",
        "bsonType": "string",
        "enum": {
          "collection": "uni-id-users",
          "field": "_id as value,username as text"
        },
        "foreignKey": "uni-id-users._id"
      },
      "message": {
        "bsonType": "string",
        "description": "申请加群的验证或请求信息"
      },
      "creat_time": {
        "bsonType": "timestamp",
        "description": "申请入群时间",
        "forceDefaultValue": {
          "$env": "now"
        }
      },
      "state": {
        "bsonType": "int",
        "description": "状态",
        "enum": [{
            "text": "待处理",
            "value": 0
          },
          {
            "text": "已同意",
            "value": 100
          },
          {
            "text": "已拒绝",
            "value": -100
          }
        ],
        "forceDefaultValue": 0
      },
      "update_time": {
        "bsonType": "timestamp",
        "description": "更新申请入群时间（多次申请加入更新此字段）",
        "forceDefaultValue": {
          "$env": "now"
        }
      }
    }
  },
  "index": []
}