我正在努力尋找貓鼬兒童人口的例子或文件。貓鼬子女
http://mongoosejs.com/docs/populate.html
在文檔它們有:
var mongoose = require('mongoose')
, Schema = mongoose.Schema
var personSchema = Schema({
_id : Number,
name : String,
age : Number,
stories : [{ type: Schema.Types.ObjectId, ref: 'Story' }]
});
var storySchema = Schema({
_creator : { type: Number, ref: 'Person' },
title : String,
fans : [{ type: Number, ref: 'Person' }]
});
var Story = mongoose.model('Story', storySchema);
var Person = mongoose.model('Person', personSchema);
這是有道理的,一個人可以有很多故事因此「父」場「故事」,其擁有所有的故事列表
我在努力理解的是,你如何將故事推向人物架構。
例如,我有一個分配模式:
var mongoose = require ('mongoose'),
Schema = mongoose.Schema;
var assignmentSchema = new Schema (
{
_id: String,
assignName: String,
modInsID: [{ type: Schema.Types.Number, ref: 'ModuleInst' }],
studentAssigns: [{type: Schema.Types.ObjectId, ref: 'StudentAssign' }]
}
);
module.exports = mongoose.model ('Assignment', assignmentSchema);
的studentAssigns
存儲studentAssigns
的所有的ID,然後可以用.pre
中間件級聯刪除使用。
所以現在我StudentAssign模式:
var mongoose = require ('mongoose'),
autoIncrement = require ('mongoose-auto-increment'),
Schema = mongoose.Schema;
var connection = mongoose.createConnection("************");
autoIncrement.initialize(connection);
var studentAssignSchema = new Schema (
{
assID: [{ type: Schema.Types.String, ref: 'Assignment' }],
studentID: [{ type: Schema.Types.Number, ref: 'Student' }]
}
);
var StudentAssign = connection.model('StudentAssign', studentAssignSchema);
module.exports = mongoose.model ('StudentAssign', studentAssignSchema);
正如你可以看到它已經被引用 'Assignment
'
這裏是我的API代碼:
studentAssign POST:
router.route('/student-assignment').post(function(req, res) {
var studentAssign = new StudentAssign();
studentAssign.assID = req.body.assID;
studentAssign.studentID = req.body.studentID;
studentAssign.save(function(err, studentAssign) {
if(err) console.log(err);
res.status(200).json(studentAssign);
});
})
所以這就是我在哪裏會推動t他'studentAssign
'到'Assignment
'模式的'studentAssigns
數組??
這裏是我當前API JSON回調:
[
{
"_id": "As 1",
"assignName": "Software Implementation",
"__v": 0,
"studentAssigns": [],
"modInsID": [
{
"_id": 22,
"semester": "TRI 3",
"year": 2016,
"__v": 0,
"modID": [
111
]
}
]
}
]
文檔只是沒有說清楚,因爲他們只是顯示:
aaron.stories.push(story1); aaron.save(callback);
沒有解釋?
我已經嘗試過: var assignment = new Assignment(); assignment.studentAssigns.push(studentAssign);
沒有東西存儲?
你叫assignment.save(); ? – Molda
@Molda對不起,我沒有複製那部分 –