मैं यह उदाहरण बनाता हूं जो आपकी मदद कर सकता है:
var async=require('async');
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var uri = 'mongodb://localhost/myDb';
mongoose.connect(uri);
// define a schema
var ProjectSchema = new Schema({
projectName: "String",
projectManager: "String",
task: [{
taskName: "String",
timetakeninhrs: "String"
}]
});
// compile our model
var Project = mongoose.model('Project', ProjectSchema);
// create a documents
var Project01 = new Project({
projectName: "Project01",
projectManager: "Manager01",
task: [{
taskName: "tsk01_Project01",
timetakeninhrs: "1111-1111"
}, {
taskName: "tsk02_Project01",
timetakeninhrs: "1111-2222"
}, {
taskName: "tsk03_Project01",
timetakeninhrs: "1111-3333"
}, {
taskName: "tsk04_Project01",
timetakeninhrs: "1111-4444"
}]
});
var Project02 = new Project({
projectName: "Project02",
projectManager: "Manager02",
task: [{
taskName: "tsk01_Project02",
timetakeninhrs: "2222-1111"
}, {
taskName: "tsk02_Project02",
timetakeninhrs: "2222-2222"
}, {
taskName: "tsk03_Project02",
timetakeninhrs: "2222-3333"
}, {
taskName: "tsk04_Project02",
timetakeninhrs: "2222-4444"
}]
});
//delete existing documents and create them again
Project.remove({}, function() {
Project01.save(function() {
Project02.save(function() {
//for example we find taskName: "tsk03_Project02"
Project.find({'task': {$elemMatch: {taskName: "tsk03_Project02"}}},'task.taskname task.timetakeninhrs',function(err, docs) {
if (!err) {
console.log(docs);
}
});
});
});
});