var Class = mongoose.model('Class', {className: String, marks: [{type: Number}], grades: [{type: Number}]});
var User = mongoose.model('User', {email: String, classes: [Class] });
//Lets create a new user
var class1 = new Class({className: 'aaa', marks: [72, 88, 63], grades: [30, 40, 30]});
var user1 = new User({email: 'aaa@some.com', classes: [class1]});
保存
class1
似乎工作正常,但当我检查mongodb时,显示:
{
"_id" : ObjectId("someId"),
"className" : "TEST1234",
"grades" : [ 30, 40, 30 ],
"marks" : [ 72, 88, 63 ],
"__v" : 0
}
"__v : 0"
是吗?
ValidationError:CastError:Cast to Array失败,值为“{marks:[72,88,63],
_身份证:某某,
类名:路径“classes”处的“TEST1234”}
这个错误到底是什么意思?为什么它要向数组中投射任何东西?不应该
classes: [Class]
class
是吗?
