我的项目中有一个圆形模型:
var circleSchema = new Schema({ //circleId: {type: String, unique: true, required: true}, patientID: {type: Schema.Types.ObjectId, ref: "patient"}, circleName: String, caregivers: [{type: Schema.Types.ObjectId}], accessLevel: Schema.Types.Mixed }); circleSchema.virtual('caregiver_details',{ ref: 'caregiver', localField: 'caregivers', foreignField: 'userId' });
照顾者模式:
var cargiverSchema = new Schema({ userId: {type: Schema.ObjectId, unique: true}, //objectId of user document detailId: {type: Schema.ObjectId, ref: "contactDetails"}, facialId: {type: Schema.ObjectId, ref: "facialLibrary"}, //single image will be enough when using AWS rekognition circleId: [{type: Schema.Types.ObjectId, ref: "circle"}], //multiple circles can be present array of object id });
样本对象:
{ "_id" : ObjectId("58cf4832a96e0e3d9cec6918"), "patientID" : ObjectId("58fea8ce91f54540c4afa3b4"), "circleName" : "circle1", "caregivers" : [ ObjectId("58fea81791f54540c4afa3b3"), ObjectId("58fea7ca91f54540c4afa3b2") ], "accessLevel" : { "location\"" : true, "notes" : false, "vitals" : true } }
我已经尝试过为mongoosejs进行虚拟填充,但是无法使其正常工作。这似乎是完全相同的问题:https : //github.com/Automattic/mongoose/issues/4585
circle.find({"patientID": req.user._id}).populate('caregivers').exec(function(err, items){ if(err){console.log(err); return next(err) } res.json(200,items); });
我只得到结果中的对象ID。它没有被填充。
找出问题所在。默认情况下,虚拟字段不包含在输出中。在圈子模式中添加以下内容之后:
circleSchema.virtual('caregiver_details',{ ref: 'caregiver', localField: 'caregivers', foreignField: 'userId' }); circleSchema.set('toObject', { virtuals: true }); circleSchema.set('toJSON', { virtuals: true });
现在,它可以完美运行。