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我使用的角度来构建我在后端和前端环回,我的模型有关系HasManyThrough如何删除属性之前保存
// person.json
{
"name": "Person",
...,
"relations": {
"contacts": {
"type": "hasMany",
"model": "Person",
"foreignKey": "fromId",
"through": "PersonConnect"
}
}
}
// person-connect.json
{
"name": "PersonConnect",
"base": "PersistedModel",
"properties": ...,
"relations": {
"from": {
"type": "belongsTo",
"model": "Person",
"foreignKey": "fromId"
},
"to": {
"type": "belongsTo",
"model": "Person",
"foreignKey": "toId"
}
}
}
如果我尝试用资源管理器,我可以建立一个新的关系使用
PUT /api/Person/:id/contacts/:fk
两个人其中ID,该fromId和FK是风湿,棱角分明SDK产生的服务问题也发送车身参数ID和FK,这使得问题,因为设置PersonConnect.id之间的平等Person.fromId并附加额外的值fk
{
"_id" : ObjectId("55f0915f19c46e06675d056e"),
...
"fromId" : ObjectId("55f0915f19c46e06675d056e"),
"toId" : ObjectId("55f09b4d4d06f8c872e43c84"),
"fk" : "55f09b4d4d06f8c872e43c84"
}
固定我写了下面的
// person-connect.js
var _ = require('lodash');
module.exports = function (PersonConnect) {
PersonConnect.observe('before save', function (ctx, next) {
if (ctx.instance) {
ctx.instance = _.omit(ctx.instance, ['id', 'fk']);
}
next();
});
};
没有成功,该ID和FK值仍然使用的是发送的值,我设置为空,工作,但我得到的东西像
{
"_id" : ObjectId("55f18c67bbfa11053b36cafc"),
...
"fromId" : ObjectId("55f0915f19c46e06675d056e"),
"toId" : ObjectId("55f09b4d4d06f8c872e43c84"),
"fk" : null
}
如何在将模型存储在环回之前删除属性?