{
  "summary": {
    "name": "approval_task",
    "label": "审批任务",
    "comment": "具体的审批任务分配"
  },
  "fields": [
    {
      "name": "id",
      "title": "ID",
      "type": "str",
      "length": 32,
      "nullable": false,
      "comments": "主键UUID"
    },
    {
      "name": "instance_id",
      "title": "实例ID",
      "type": "str",
      "length": 32,
      "nullable": false,
      "comments": "关联的审批实例"
    },
    {
      "name": "step_id",
      "title": "步骤ID",
      "type": "str",
      "length": 32,
      "nullable": false,
      "comments": "关联的审批步骤"
    },
    {
      "name": "approver_id",
      "title": "审批人ID",
      "type": "str",
      "length": 32,
      "nullable": false,
      "comments": "具体审批人用户ID"
    },
    {
      "name": "status",
      "title": "状态",
      "type": "str",
      "length": 20,
      "nullable": false,
      "comments": "pending/approved/rejected"
    },
    {
      "name": "decision",
      "title": "决策",
      "type": "str",
      "length": 1000,
      "nullable": true,
      "comments": "审批意见"
    },
    {
      "name": "org_id",
      "title": "组织ID",
      "type": "str",
      "length": 32,
      "nullable": false,
      "comments": "多租户组织隔离"
    },
    {
      "name": "assigned_at",
      "title": "分配时间",
      "type": "timestamp",
      "nullable": false,
      "comments": "任务分配时间"
    },
    {
      "name": "completed_at",
      "title": "完成时间",
      "type": "timestamp",
      "nullable": true,
      "comments": "任务完成时间"
    },
    {
      "name": "due_at",
      "title": "截止时间",
      "type": "timestamp",
      "nullable": true,
      "comments": "任务截止时间"
    }
  ],
  "indexes": [
    {
      "name": "idx_task_instance",
      "idxtype": "index",
      "fields": ["instance_id"]
    },
    {
      "name": "idx_task_approver",
      "idxtype": "index",
      "fields": ["approver_id"]
    },
    {
      "name": "idx_task_status",
      "idxtype": "index",
      "fields": ["status"]
    }
  ],
  "codes": [
    {
      "tblname": "appcodes",
      "codevalue": "TASK_STATUS",
      "valuefield": "k",
      "textfield": "v"
    }
  ]
}