๋ชฝ๊ตฌ์ค: 4.6.6
๋ชฝ๊ณ DB: 2.2.11
๋
ธ๋: 4.5
๊ฐ์ ์ฑ์ฐ๊ธฐ ํ๋๋ฅผ ํ์ฑํ/๋นํ์ฑํํ๋ฉด ์ฟผ๋ฆฌ ๊ฒฐ๊ณผ์ null
๋ก ํ์๋๋ ๋ฐฐ์ด ํ์ ๋ฌธ์๊ฐ ์์ฑ๋ฉ๋๋ค.
var someModelSchema = new mongoose.Schema({
name: String
});
mongoose.model('someModel', someModelSchema)
var schema0 = new mongoose.Schema({
name0: String
});
schema0.virtual('detail', {
ref: 'SomeModel',
localField: '_id',
foreignField: '_id',
justOne: true
});
var schema1 = new mongoose.Schema({
name1: String,
list: [schema0],
obj: schema0
});
var schemaMain = new mongoose.Schema({
nestedObj: schema1,
nameMain: String
});
var ModelMain = mongoose.model('ModelMain', schemaMain);
var x = new ModelMain({
nameMain: 'sss',
nestedObj: {
name1: 'name1',
list: [{
name0: 'name0.1'
}],
obj: {
name0: 'name0.1'
}
}
})
x.save().then(function (err, docs) {
ModelMain.find({}, function (err, docs) {
console.log(JSON.stringify(docs, null, 4));
})
})
๊ฒฐ๊ณผ
{
"_id": "581cbf70d7c120443684a490",
"nameMain": "sss",
"nestedObj": {
"name1": "name1",
"obj": {
"name0": "name0.1",
"_id": "581cbf70d7c120443684a492"
},
"_id": "581cbf70d7c120443684a491",
"list": [
null
]
},
"__v": 0
}
list
์์ฑ์ด null์
๋๋ค. ๊ฐ์ ์์ฑ ์ ์ธ์ ์ฃผ์ ์ฒ๋ฆฌํ๋ฉด ๋ชฉ๋ก์ ๋ค์๊ณผ ๊ฐ์ ์์ ๋ฐ์ดํฐ๊ฐ ํฌํจ๋ฉ๋๋ค.
{
"_id": "581cbfdf0700ba445223c848",
"nameMain": "sss",
"nestedObj": {
"name1": "name1",
"obj": {
"name0": "name0.1",
"_id": "581cbfdf0700ba445223c84a"
},
"_id": "581cbfdf0700ba445223c849",
"list": [
{
"name0": "name0.1",
"_id": "581cbfdf0700ba445223c84b"
}
]
},
"__v": 0
}
์ด ๋ฌธ์ ๋ schemas.js์ Schema.prototype.virtual
์ ์ธ์์ pre-hook์ ์ฃผ์ ์ฒ๋ฆฌํ ํ ๋ ์ด์ ์กด์ฌํ์ง ์์ต๋๋ค.
ํํฌ๋ฅผ ๋น ํํฌ๋ก ๊ต์ฒดํ ํ์๋:
this.pre('init', function(next, obj) {
next();
});
๋ฌธ์ ๋ ์ฌ์ ํ ์์ต๋๋ค.
์ด๊ฒ์ด ์ฃผ์ ์ฒ๋ฆฌ๋๋ฉด ๋ชจ๋ ๊ฒ์ด ์ข์ต๋๋ค.
d09c3d677ca4daf087be343af177f05ae2043502์์ ์์ ๋จ
๊ฐ์ฅ ์ ์ฉํ ๋๊ธ
d09c3d677ca4daf087be343af177f05ae2043502์์ ์์ ๋จ