我有以下两种模式和模型:
var Customer = new Schema({ name: String,jobs: [{ type: Schema.Types.ObjectId,ref: 'Job' }] }); var Job = new Schema({ title: String,customer: { type: Schema.Types.ObjectId,ref: 'Customer' } }); var CustomerModel = mongoose.model('Customer',Customer); var JobModel = mongoose.model('Job',Job);
作业文档通过_id引用客户文档,客户文档还包含所有作业_id的数组.
删除作业时,我需要从Customer.jobs数组中删除相应的_id.
app.delete('/api/jobs/:jobId',function(req,res){ return JobModel.findById(req.params.jobId,function(err,job){ return job.remove(function(err){ if(!err){ CustomerModel.update({_id: job.customer._id},{$pull : {'customer.jobs' : job.customer._id}},numberAffected){ console.log(numberAffected); if(!err){ return console.log('removed job id'); } else { return console.log(err); } }); console.log('Job removed'); return res.send(''); } else{ console.log(err); } }); }); });
numberAffected始终为0,“删除的作业ID”始终被触发
解决方法
你的$pull中有一些倒退的东西.试试这个:
CustomerModel.update({_id: job.customer},{$pull : {jobs : job._id}},...