{
  "schema": {
    "bsonType": "object",
    "required": ["name"],
    "permission": {
      "read": true, 
      "create": false,
      "update": false,
      "delete": false 
    },
    "properties": {
      "_id": {
        "description": "存储文档 ID（文章 ID），系统自动生成"
      },
      "name": {
        "bsonType": "string",
        "description": "类别名称",
        "label": "名称",
		"trim":"both"
      },
      "description": {
        "bsonType": "string",
        "description": "类别描述",
        "label": "描述",
		"trim":"both"
      },
      "icon": {
        "bsonType": "string",
        "description": "类别图标地址",
        "label": "图标地址",
        "pattern": "^(http://|https://|/|./|@/)\\S",
		"trim":"both"
      },
      "sort": {
        "bsonType": "int",
        "description": "类别显示顺序",
        "label": "排序"
      },
      "article_count": {
        "bsonType": "int",
        "description": "该类别下文章数量"
      },
      "create_date": {
        "bsonType": "timestamp",
        "description": "创建时间",
        "forceDefaultValue": {
          "$env": "now"
        }
      }
    }
  },
  "data": [],
  "index": []
}