{
  "schema": {
    "bsonType": "object",
    "required": [],
    "permission": {
      "read": true,
      "create": true,
      "update": true,
      "delete": false
    },
    "properties": {
      "_id": {
        "description": "ID，系统自动生成"
      },
      "src": {
        "bsonType": "string",
        "description": "媒体资源地址"
      },
      "cover": {
        "bsonType": "string",
        "description": "媒体资源封面地址；仅视频使用"
      },
      "type": {
        "bsonType": "string",
        "description": "媒体资源类型",
        "enum": ["image", "video"]
      },
      "description": {
        "bsonType": "string",
        "description": "媒体资源描述"
      },
      "alt": {
        "bsonType": "string",
        "description": "媒体资源alt替代文字"
      },
      "originalName": {
        "bsonType": "string",
        "description": "媒体资源原始文件名"
      },
      "fileType": {
        "bsonType": "string",
        "description": "媒体资源文件类型"
      },
      "size": {
        "bsonType": "number",
        "description": "媒体资源大小"
      },
      "resolution": {
        "bsonType": "object",
        "description": "媒体资源分辨率"
      },
      "duration": {
        "bsonType": "number",
        "description": "媒体资源时长"
      },
      "uploadUser": {
        "bsonType": "string",
        "description": "媒体资源上传用户",
        "foreignKey": "uni-id-users._id"
      },
      "createDate": {
        "bsonType": "timestamp",
        "description": "媒体资源创建时间"
      }
    }
  },
  "index": []
}