Question

如何将Unique键作为loopback模型中3列的组合模型结构就像

"properties": {
"year": {
  "type": "number",
  "required": true
},
"user_id": {
  "type": "number",
  "required": true
},
"leave_type_id": {
  "type": "number",
  "required": true
},
"total_days": {
  "type": "number",
  "required": true
}

}，

对我来说，年份，User_id，leave_type_id组合将是一个唯一的密钥。我怎么能在环回模型定义中提到

Answer 1

在字段上定义多个id属性。

...
"user_id": {
  "id": 1, //add this
  "type": "number",
  "required": true
},
"leave_type_id": {
  "id": 2, //add this
  "type": "number",
  "required": true
},
...

请参阅http://docs.strongloop.com/display/LB/Model+definition+JSON+file#ModeldefinitionJSONfile-CompositeIDs

定义唯一的密钥strong循环模型

1 个答案: