Update and remove NoSQL documents

Total.js 5 · total5@0.0.19 nosqldatabase Executed against Total.js 5

update(data) and remove() work like find(): add the conditions with .where() and finish with .callback(function(err, count) {}). The callback receives the number of documents that were changed or removed. Always add a condition: without one the operation applies to every document.

update(data) merges the fields of data into the matching documents. Use read() to get a single document.

controllers/tasks.js

exports.install = function() {
	ROUTE('POST /tasks/', create);
	ROUTE('PATCH /tasks/{id}/', done);
	ROUTE('DELETE /tasks/{id}/', remove);
	ROUTE('GET /tasks/{id}/', read);
};

function create($) {
	var task = { id: $.body.id, title: $.body.title, done: false };
	NOSQL('tasks').insert(task).callback(() => $.json(task));
}

function done($) {
	NOSQL('tasks').update({ done: true }).where('id', $.params.id).callback((err, count) => $.json({ updated: count }));
}

function remove($) {
	NOSQL('tasks').remove().where('id', $.params.id).callback((err, count) => $.json({ removed: count }));
}

function read($) {
	NOSQL('tasks').read().where('id', $.params.id).callback((err, response) => $.json(response || { missing: true }));
}