get all data in collection mongodb
db.collection_name.find().pretty()get all data in collection mongodb
db.collection_name.find().pretty()mongoose find() example
// find all documents
await MyModel.find({});
// find all documents named john and at least 18
await MyModel.find({ name: 'john', age: { $gte: 18 } }).exec();
// executes, passing results to callback
MyModel.find({ name: 'john', age: { $gte: 18 }}, function (err, docs) {});
// executes, name LIKE john and only selecting the "name" and "friends" fields
await MyModel.find({ name: /john/i }, 'name friends').exec();
// passing options
await MyModel.find({ name: /john/i }, null, { skip: 10 }).exec();findone mongoose
// Find one adventure whose `country` is 'Croatia', otherwise `null`
await Adventure.findOne({ country: 'Croatia' }).exec();
// using callback
Adventure.findOne({ country: 'Croatia' }, function (err, adventure) {});
// select only the adventures name and length
await Adventure.findOne({ country: 'Croatia' }, 'name length').exec();mongoose where
exports.generateList = function (req, res) {
subcategories
.find({})//grabs all subcategoris
.where('categoryId').ne([])//filter out the ones that don't have a category
.populate('categoryId')
.where('active').equals(true)
.where('display').equals(true)
.where('categoryId.active').equals(true)
.where('display').in('categoryId').equals(true)
.exec(function (err, data) {
if (err) {
console.log(err);
console.log('error returned');
res.send(500, { error: 'Failed insert' });
}
if (!data) {
res.send(403, { error: 'Authentication Failed' });
}
res.send(200, data);
console.log('success generate List');
});
};findone mongoose
A.findOneAndReplace(conditions, options, callback) // executes
A.findOneAndReplace(conditions, options) // return Query
A.findOneAndReplace(conditions, callback) // executes
A.findOneAndReplace(conditions) // returns Query
A.findOneAndReplace() // returns QueryCopyright © 2021 Codeinu
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