find all mongoose

1//create model students
2
3const mongoose = require("mongoose");
4
5const Schema = mongoose.Schema;
6
7const StudentSchema = new Schema({
8  name: String,
9  dob: Date,
10  mobile: String,
11  address: String,
12});
13
14module.exports = mongoose.model("students", StudentSchema);
15
16
17const STUDENT = require("../models/Student");
18
19
20exports.getProducts = (req, res, next) => {
21	//fetch all student data
22  STUDENT.find().then((p) => {
23    res.send(p);
24  });
25};
26
27exports.getProducts = (req, res, next) => {
28	//fetch all student data 
29  STUDENT.find({},(err,p)=>{
30  	 res.send(p);
31  });
32};
33
34

1// Find the adventure with the given `id`, or `null` if not found
2await Adventure.findById(id).exec();
3
4// using callback
5Adventure.findById(id, function (err, adventure) {});
6
7// select only the adventures name and length
8await Adventure.findById(id, 'name length').exec();

1// include a and b, exclude other fields
2query.select('a b');
3// Equivalent syntaxes:
4query.select(['a', 'b']);
5query.select({ a: 1, b: 1 });
6
7// exclude c and d, include other fields
8query.select('-c -d');
9
10// Use `+` to override schema-level `select: false` without making the
11// projection inclusive.
12const schema = new Schema({
13  foo: { type: String, select: false },
14  bar: String
15});
16// ...
17query.select('+foo'); // Override foo's `select: false` without excluding `bar`
18
19// or you may use object notation, useful when
20// you have keys already prefixed with a "-"
21query.select({ a: 1, b: 1 });
22query.select({ c: 0, d: 0 });

1exports.generateList = function (req, res) {
2    subcategories
3            .find({})//grabs all subcategoris
4            .where('categoryId').ne([])//filter out the ones that don't have a category
5            .populate('categoryId')
6            .where('active').equals(true)
7            .where('display').equals(true)
8            .where('categoryId.active').equals(true)
9            .where('display').in('categoryId').equals(true)
10            .exec(function (err, data) {
11            if (err) {
12                console.log(err);
13                console.log('error returned');
14                res.send(500, { error: 'Failed insert' });
15            }
16
17            if (!data) {
18                res.send(403, { error: 'Authentication Failed' });
19            }
20
21            res.send(200, data);
22            console.log('success generate List');
23        });
24    };